Found inside – Page 352Trade name Supplier Description Biomer® Ethicon Polyether urethane urea (PTMO/ MDI/ED) Pellethane® Dow Chemical USA Polyether ... Biomaterials Aromatic polycarbonate-based PU CarboSil® TSPCU DSM Corporate Silicone–polycarbonate–urethane ... Urethane is a superior, top-of-the-line hard coating that resists wear and requires less maintenance than acrylic. Polyurethanes produced from this grade are superior to those based on polyether diol as well as polyester diol and provides high chemical resistance, excellent hydrolytic stability, high thermal stability as well as high ... ETERNACOLL® UT200 by UBE is a solvent-free linear aliphatic polycarbonate diol. 9 watching. ), BELGIAN CORPORATION FOR INTERNATIONAL INVESTMENT (SBI) BY ANDRE VAN DEN BOGAERT, BIOMEDICAL ENGINEERING UNIVERSITY OF MIAMI BY PETER P. TARJAN, CHAIRMAN, BLACK, DAVID, CHEMICALS AND MATERIALS ENTERPRISE ASSOCIATES, LIMITED PARTNERSHIP, CHESTNUT CAPITAL INVESTMENT INTERNATIONAL III, L.P. LATE STAGE FUND 1990 LATE STAGE FUND 1991, COLLEGE OF ENGINEERING UNIVERSITY OF MIAMI BY NORMAN G. EINSPRUCH, CORVITA EUROPE, S.A. BY HERBERT KONTGES, MANAGING DIRECTOR, HUDSON, UTAKO KIMURA, MARTIN, JOHN B., MERIFIN CAPITAL N.V., MORGAN, HOLLAND FUND II, NEW ENTERPRISE ASSOCIATES V, LIMITED PARTNERSHIP, NIPPON ENTERPRISE DEVELOPMENT CORP., ONSET ENTERPRISE ASSOCIATES, L.P., SPROUT CAPITAL VI, L.P. SPROUT CAPITAL V SPROUT TECHNOLOGY FUND DLJ VENTURE CAPITAL FUND II, L.P., STANDARD FIRE INSURANCE COMPANY, TRINITY VENTURES II, L.P. TRINITY VENTURES, III TRINITY SIDE-BY-SIDE I, L.P., WELDON, NORMAN R., WESTMED VENTURE PARTNERS, L.P., WILROTH, Assigned to CORVITA CORPORATION, A CORP. OF FLORIDA. Also provides en... ETERNACOLL® UH50 by UBE is a solvent-free solid aliphatic polycarbonate diol. ;ASSIGNORS:NEW ENTERPRISE ASSOCIATES V, LIMITED PARTNERSHIP;CHEMICALS AND MATERIALS ENTERPRISE ASSOCIATES, LIMITED PARTNERSHIP;SPROUT CAPITAL VI, L.P.;AND OTHERS;REEL/FRAME:007846/0875, ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CORVITA CORPORATION;REEL/FRAME:030689/0555, ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ACACIA RESEARCH GROUP LLC;REEL/FRAME:030740/0225. No. Generally speaking, most diols or diamines are suitable, including the ethylenediols, the propylenediols, ethylenediamine, 1,4-butanediamine methylene dianiline heteromoleculs such as ethanolamine, reaction products of said diisocyanates with water, combination of the above, additional macroglycols and the like. Aliphatic Urethane - These products are high performance acrylic coatings which provide outstanding gloss and color retention, plus excellent abrasion, and chemical and solvent resistance. Diisocyanate reactants according to this invention have the general structure OCN--R'--NCO, wherein R' is a hydrocarbon that may include aromatic or non-aromatic structures, including aliphatic and cycloaliphatic structures. There is accordingly a need for a material which will not experience surface fissuring or cracking under implanted or in vivo conditions and which is otherwise desirable and advantageous as a material for medical devices or prostheses that must successfully delay, if not eliminate, the cracking phenomenon even after implantation for months and years, in many cases a substantial number of years. Additionally, the polycarbonate urethane polymers can be polymerized in suitable solvents, typically polar organic solvents in order to ensure a complete and homogeneous reaction. Found inside – Page 1539eDisc The eDisc comprises a polycarbonate urethane core and titanium end plates, with a microelectronic module. The polymer, PH200, developed by Theken, is reported to have superior crack growth resistance, greater hydrolytic stability, ... Examples of typical aromatic polycarbonate macroglycols include those derived from phosgene and bisphenol A or by ester exchange between bisphenol A and diphenyl carbonate such as (4,4'-dihydroxy-diphenyl-2,2'-propane) shown below, wherein n is between about 1 and about 12. Diol-based PU when exposed to harsh conditions, Figure 9: Conditions of Pencil test - Determination of film hardness AU - Acrylic Urethane Paint. Thanks to its thermoplastic nature, it has several benefits over other elastomers are unable to match, such as: Thermoplastic polyurethane (TPU) was discovered . "The acrylics are air-drying paints, so you can leave them sit 24 to 48 hours before they dry," Tom said. Offers better adhesion to metal even after weathering and better corrosion resistance by replacing the blend of a classical polyo... ETERNACOLL® PH300D by UBE is a solvent-free liquid copolycarbonate diol. With plastics, the higher the durometer, the more likely a part will crack or break. 7. *Retention = (property after ageing)/(initial property) x 100, Figure 7: Retention of gloss 60° for Diols-based PU ), NIPPON ENTERPRISE DEVELOPMENT CORP., BLACK, DAVID, EINSPRUCH, NORMAN G., NEW ENTERPRISE ASSOCIATES V, LIMITED PARTNERSHIP, HUDSON, UTAKO KIMURA, MERIFIN CAPITAL N.V., WESTMED VENTURE PARTNERS, L.P., ONSET ENTERPRISE ASSOCIATES, L.P., STADARD FIRE INSURANCE COMPANY C/O AETNA, JACOBS & RAMO. AU is 2.8 VOC when used as packaged, as no reducer is required (optional reducer sold separately). The Trustees Of Columbia University In The City Of New York. Castable films made from this formulation had a hardness of Shore 80A. They are generally classified as polyurethanes inasmuch as the backbone thereof includes urethane groups and often also urea groups, which groups are recurring units within the polymer backbone. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CORVITA CORPORATION;REEL/FRAME:030689/0555, Owner name: So latex is chemically quite distinct from polyurethane and polycarbonate. );REEL/FRAME:007779/0111, Free format text: Urethane paint is the most durable auto paint, and is also chip-resistant—when properly maintained, a coat of urethane paint will outlast most acrylic paints. Found inside – Page 296Analysis and evaluation of a biomedical polycarbonate urethane tested in an in vitro study and an ovine arthroplasty model. Part I: Materials selection and evaluation, Biomaterials, 26(6), 621–631. Khan, I., Smith, N., Jones, E., Finch, ... Several biocompatible materials which are quite suitable for use in making implantable medical devices that may be broadly characterized as implantable prostheses exhibit properties that are sought after in such devices, including one or more of exceptional biocompatibility, extrudability, moldability, good fiber forming properties, tensile strength, elasticity, durability and the like. No. One basic approach which has been taken heretofore in order to render these materials more suitable for implantation and other applications where material degradation can develop has been to treat the material with so-called crack preventatives. As discussed in those patents and elsewhere, the term polyurethane encompasses a family of polymers that usually include three principle components. Acrylic Urethane is a two-component, water-based gloss coating. Standard body-weight loads were considered: 230% body-weight toe-off, 275% body-weight mid-stance, and 350% body-weight heel strike. The article according to claim 1, wherein said hardness in between about Shore 80A and about Shore 75D. Polyurethane falls outside of the standard plastic classifications and into the Elastomer family. AU is an easy to spray fast-drying topcoat system that provides a long-lasting and very high gloss finish result. Part # DAU75-1 Line: PPG . Acrylic urethane composite resin particles. The following steps apply to both products, however the number of coats will vary . RELEASE OF SECURITY AGREEMENT, EXECUTION DATE SEPTEMBER 16,1994, FILED ON SEPTEMBER 22, 1994 (RECORDED AT REEL 7112, FRAMES 823-889). mattresses. Castable films fabricated in the above manner had a Shore hardness of 80A. tolerance for screw machining. It can be tailored to be either rigid or flexible, and is the material of choice for a broad range of end-user applications such as: insulation of refrigerators and freezers. Supplier: R. S. Hughes Company, Inc. The solid slab was annealed at 110° C. for 24 hours and then pelletized. A spinnable or castable polycarbonate urethane polymer was prepared in the following manner. parts with +/- 0.001 in. The article according to claim 1, wherein the polymer fiber has an elastomeric silicone material bonded thereto. Acrylic Polyurethane. The polycarbonate foams and elastomers, comprise a polycarbonate material that is resistant to attack by invivo agents over extended periods of time. Featuring a superior two-component catalyzed coating system, Matthews Conventional Topcoats offer excellent ultraviolet, chemical and weather protection . Acrylic Urethane. 538,986, filed Jun. Model # 206879 UNSPSC # 31201615 Catalog Group # J1514 Catalog Page # 1603 1603 Country of . Each property range of values reported is minimum and maximum values of Methods: The PCU valves were produced by a dip-coating technique, mounted in a conical-shaped nitinol stent and provided with a leaflet thickness of 100-150 µm. The polymeric backbone has recurring urethane and/or urea groups, and the polymer is a reaction product of at least a polycarbonate glycol having terminal hydroxyl groups and a diisocyanate having terminal isocyanate groups. Exemplary medical devices or prostheses for which such a non-cracking material would be especially advantageous include vascular grafts, compliant sutures, breast implants, heart leaflet valves, pacemaker lead insulators, intraocular lens loops or haptics, diaphragms for artificial hearts, tubing for infusion pumps, artificial ligaments, artificial skin, drug eluting matrices, lattices for cell seeding and artificial organs, and the like. It is very durable with high resistance to humidity, heat and light. Urethan is mainly used in the production of amino resins, but is also used in the manufacture of pesticides, fumigants, cosmetics and pharmaceuticals. Found inside – Page 26Khan I, Smith N, Jones E, Finch DS, Elizabeth R (2005) Analysis and evaluation of a biomedical polycarbonate urethane tested in an in vitro study and an ovine arthroplasty model. Part I : Mater Sel Eval Biomater 26:621–631 4. The polymer is a polycarbonate urethane polymer which is substantially completely devoid of ether linkages. 3 is a photomicrograph of a section from a spun graft made from a polycarbonate urethane polymer formulated according to the present invention, also after subcutaneous implantation, explanation and cleaning. Free format text: This high performance, two-component aliphatic acrylic urethane coating is ideal for use in exterior corrosion-resistant systems on steel, aluminum, galvanized steel, and concrete. Polycarbonate Diols (PCD) and Polycarbonate-based Polyurethane Prepolymers offer customizable possibilities with superior and long-term retention . This web page summarizes information in PubChem about patent JP-6369855-B2. Copolymers formed in this manner can be entirely aliphatic, entirely aromatic, or mixed aliphatic and aromatic. SECURITY INTEREST;ASSIGNOR:CORVITA CORPORATION;REEL/FRAME:007000/0222, Owner name: Polycarbonate Diols and Polycarbonate-based Prepolymers, Formulate extremely durable Polyurethane Coatings, Figure 1: Water absorption of Diol-based Polyurethane Coatings, Figure 3: Increment of yellowness index of Diols-based PU A preferred and well-recognized chain extender is 1,4-butanediol. Because minimal quantities of ether linkages are unavoidable in the polycarbonate producing reaction, and because these ether linkages are suspect in the biodegradation of polyurethanes, the quantity of macroglycol should be minimized to thereby reduce the number of ether linkages in the polycarbonate urethane. It is particularly advantageous to use these types of materials for making products in respect of which compliance and/or flexibility, high tensile strength and excellent fatigue life can be desirable features. Polyether urethanes are known to be degraded by cellular components and metal ions and will not survive the rigors of a physiological environment, requiring the application of treatments thereto in order to prevent biodegradation. Satin Hot Rod Black 2K Acrylic Urethane. It has been used in Europe since 2008 and in Israel since 2011. 4,769,030, No. The polymer was prepared at 42.5% solids content with 156 grams of MDI, 248 grams of polycarbonate diol of molecular weight 1989, 45 grams of 1,4-butanediol and no water. building insulation. Durometer is a measure of a material's hardness - a material's resistance to permanent indentation. A consequence of increasing this ratio (i.e., increasing the amount of chain extender with respect to macroglycol) is an increase in hardness of the polyurethane. A spinnable or castable polycarbonate urethane was prepared similar to that of Examples 1 and 2; however, the ratio of chain extender to polycarbonate soft segment was increased to 4:1. A high solids, acrylic urethane, with fast drying attributes. Two-component aliphatic acrylic topcoat Polane® 8880 Acrylic Polyurethane is a 2.8 two component, aliphatic acrylic topcoat with fast dry and flexible application characteristics. Polyurethane Adhesives and Sealants - 3M 2665B Black Urethane Adhesive - Solid 30 CC Syringe 65161 -- 048011-65161. Two clinical trials are currently underway, labeled SUN and VENUS. These are the polyester glycols, the polyether glycols and the polycarbonate glycols. Polyurethane versus Plastic The plastics family generally includes materials with a wide range of chemical compositions, including variations of carbon and hydrogen molecules. Similarly, they can be surface grafted or coupled with drugs such as heparin, steroids, antibiotics and the like. Engineered as a final topcoat for achitectural woodwork, doors, cabinetry, trims and other high-end applications which require a strong yet flexible . $65.96. BELGIAN CORPORATION FOR INTERNATIONAL INVESTMENT (, Owner name: The polymeric backbone has recurring urethane and/or urea groups, and the polymer is a reaction product of at least a polycarbonate glycol having terminal hydroxyl groups and a diisocyanate having terminal isocyanate groups. The reaction was continued for four hours, and the polycarbonate urethane polymer formed had a Shore hardness value of 60A. Objective: Polycarbonate urethane (PCU) is a new biomaterial, and its mechanical properties can be tailored to match that of vaginal tissue. The reaction was continued for one hour at 60° C., after which 21 grams of 1,4-butanediol and 2.52 grams of water were added. An experimental ovine study was designed to evaluate a novel dip-coated, low-profile trileaflet polycarbonate urethane (PCU) heart valve mounted into a self-expandable nitinol stent. Suitable chain extenders included in the polymerization of the polycarbonate urethanes should have a functionality that is equal to or greater than two. In the course of this description, reference will be made to the attached drawings, wherein: FIG. These and other objects, features and advantages of the present invention will be clearly understood through a consideration of the following detailed description. General Paint Acrylic Urethane; Product Details Share on Facebook Share on Twitter Share on Pinterest Share on Houzz Share this with your friends Share with email Print page. AUE-100 Acrylic Urethane Enamel is available in high and low gloss bases. WILROTH C/O WILLIAM M. ROTH, NEW YORK, Owner name: Flame-Rated sprayable polyurethane plastic formulated to coat a variety of surfaces > Feather Lite™ Heavily filled, low-density urethane casting resin. LIFESHIELD SCIENCES LLC, TEXAS, Free format text: Found inside – Page 111HS XCH PO3H2 PO3H2 O 7,8 R NC O RNCOO DMA, (Bu4N)2B4O7 4b 5b 6b,c 10 11 13 12a,b 4b: R = polyether-urethane Br 7:X = (CH2)3SCH2 8:X = CH2 CH–PO3H2 S X 5b: R = polyurethane-urea PO3H2 6b,c: R = polycarbonate-urethane 10: R ... It is accordingly a general object of the present invention to provide improved crack-resistant devices and products. NEW. cushioning for furniture. SECURITY INTEREST;ASSIGNOR:CORVITA CORPORATION;REEL/FRAME:007112/0823. 11. General Paint Acrylic Urethane {{ ctrl.bvAvgRatingForScrReaders }} Star rating out of 5 . The two-stage approach urethane features a low gloss, high solid counter product; which is a topcoat with a clear finish coat. Owner name: Designed to combat unnecessary downtime and maintenance, The Surface Saver's specially-formulated polyurethane is site-tested to withstand temperatures to -30º below zero and is proven to outlast steel, rubber and plastic alternatives, as well as other polyurethane products in the industry. Numerous modifications may be made by those skilled in the art without departing from the true spirit and scope of the invention. The article according to claim 1, wherein the polymer fiber has a crack preventive composition bonded thereto. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from a wide range of starting materials and is therefore a class of polymers, rather than a distinct compound.. Pellets formed in this manner are thermoplastic 80A in hardness, and can be extruded at 180° C. to 220° C. in to a product such as an insulating sheath for a pacemaker lead, or fibers for textile applications. It is also advantageous for the material to be compatible with other materials that are commonly used in the medical fields such as with adhesives, surface coatings and the like. STANDARD FIRE INSURANCE COMPANY C/O AETNA, JACOBS, Owner name: Exemplary isocyanates include the preferred methylene diisocyanate (MDI), or 4,4-methylene bisphenyl isocyanate, or 4,4'-diphenylmethane diisocyanate and hydrogenated methylene diisocyanate (HMDI). Porous and non-porous polycarbonate urethane polymers having a set of properties suitable for long term implantation within the body of a mammal. However, some of these otherwise highly desirable materials exhibit a serious deficiency when implanted within the human body or otherwise subjected to harsh environments, such deficiency typically being manifested by the development of strength-reducing and unsightly cracks. Overview of Urethane — Polyurethane (aka Urethane) is strong and lasts longer than conventional plastics and rubbers. FIG. Hot Rod Black Paint 2.8 voc, Satin 2K Urethane, SMR-456 4:1 Slow Gal. Here, the ratio of chain extender equivalents to polycarbonate equivalents was 2.5 to 1. DELSTAR products are excellent for production and repaint segments. Ideal for industrial applications, machinery, and equipment. Found insideThese include polycarbonate polyurethanes, polycarbonate urethane ureas, and polyaliphatic urethanes. 2. Hard Segment The hard segment type and content will also influence the biodegradation of polyurethanes. The use of aromatic verses ... Please create account through ##customer_email## email. SECURITY INTEREST;ASSIGNOR:CORVITA CORPORATION;REEL/FRAME:007000/0222, TRINITY VENTURES II, L.P. TRINITY VENTURES, III. Found inside – Page 830Urethane foams offer advantages over many of the better-known foams such as latex foam rubber, polystyrene, ... Further, TPUs are blended with other plastic resins, including polyvinyl chloride, ABS, acetal, SAN, and polycarbonate. VAN DEN BOGAERT, ANDRE, MASSACHUSETTS, Owner name: 4,810,749, the subject matter thereof being incorporated by reference hereinto. Polyurethane (often abbreviated PUR and PU) is a commonly encountered polymer composed of organic units joined by carbamate (urethane) links. This product provides excellent gloss and color retention when used on exterior surfaces exposed to sunlight and rain, and the highly cross-linked formula provides superior abrasion, chemical, and solvent resistance. 15, 1990 now abandoned. A notable benefit of using this material is the wide range of durometers. Polyurethanes produced from this grade are superior to those based on polyether diol as well as polyester diol and provides high chemical resistance, excellent hydrolytic stability, high thermal stability as well as high m... ETERNACOLL® UH100 by UBE is a solvent-free solid aliphatic polycarbonate diol. The shoulder appearing at 1720 cm-1 after heating can be attributed to a shift of the latter, due to disruption of the short-range order (including H-bonding). CHEMICALS AND MATERIALS ENTERPRISE ASSOCIATES LIMI, Owner name: The paint can be applied with a color pigment to it or it can be applied as a clear gloss coat that dries hard and offers the surface below protection from moisture and other damage. BLACK, DAVID, NEW YORK, Owner name: 9. Thermoplastic polyurethane (TPU) is a melt-processable thermoplastic elastomer with high durability and flexibility. Intermixing various combinations WELDON, NORMAN R. PRESIDENT, MASSACHUSETTS, Owner name: Numerous polymeric structures such as vascular grafts made from spun fibers appear to perform very satisfactorily insofar as their viability when subjected to physical stress conditions is concerned, for example conditions which approximate those experienced during and after implantation, including stresses imparted by sutures, other fastening members and the like. FIG. Part Number: SUM-UP312G. Therefore, the ratio of equivalents of chain extender to macroglycol should be as high as possible. Preferably, the ratio should be at least about 2 to 1 and less than about 6 to 1. > EZ-Spray ® StyroCoat. Found inside – Page 298See Polycarbonate-urethane resin (PCU) PDMS. See Polydimethylsiloxane (PDMS) PE. See Polyethylene (PE) PEI. See Polyethyleneimine (PEI) PEO. See Polyethylene oxide (PEO) Perovskite solar cell, 264 PET. See Polyethylene-terephthalate ... SPROUT CAPITAL VI, L.P. SPROUT CAPITAL V, NEW Y, Owner name: It can be appreciated that a polyurethane can also be synthesized with a macroglycol and isocyanate only; however, typical urethanes that are commercially available include a chain extender. I.C.I. As a clear coat, acrylic urethane is favored among painters because it . There are three basic types of resins used in making polyurethane coated fabrics. Assigned to ONSET ENTERPRISE ASSOCIATES, L.P., KONTGES, HERBERT, PAULSON, PHOTIOS T., MERIFIN CAPITAL N.V., STANDARD FIRE INSURANCE COMPANY C/O AETNA, JACOBS & RAMO, WELDON, NORMAN R. PRESIDENT, EINSPRUCH, NORMAN G., CHESTNUT CAPITAL INVESTMENT INTERNATIONAL III, L.P., NEW ENTERPRISE ASSOCIATES V, LIMITED PARTNERSHIP, PACIFIC GROWTH EQUITIES, INC., MORGAN, HOLLAND FUND II GILDE INVESTMENTS B.V., WESTMED VENTURE PARTNERS, L.P., CHEMICALS AND MATERIALS ENTERPRISE ASSOCIATES LIMITED PARTNERSHIP, TRINITY VENTURES II, L.P. TRINITY VENTURES, III, SPROUT CAPITAL VI, L.P. SPROUT CAPITAL V, HUDSON, UTAKO KIMURA, VAN DEN BOGAERT, ANDRE. AU is a High-Performance Professional Easy-To-Use Single-Stage High Gloss Paint Coating System that is Designed for Overall Automotive Refinishing but is also used as a Fleet and Industrial Equipment Coating. RELEASE OF SECURITY AGREEMENT, EXECUTION DATE SEPTEMBER 16,1994, FILED ON SEPTEMBER 22, 1994 (RECORDED AT REEL 7112, FRAMES 823-889). Paint, Single Stage, Hot Rod Satin, Acrylic Urethane, Satin, Hot Rod Black, 1 Gallon, Each. 4,474,972 in order to form a plurality of filamentous vascular grafts. They equal the performance of baked-on finishes and can be used on metal buildings . AU is an easy to spray fast-drying topcoat system that provides a long-lasting and very high gloss finish . Urethane casting provides end-use, rigid plastic parts or rubber parts with production-level quality. Thermoplastic polyurethane elastomers (TPUs) containing aliphatic polycarbonate soft segments and hard segments formed by 1,1′-methanediylbis(4-isocyanatocyclohexane) or 1,6-diisocyanatohexane and a combination of two chain extenders, i.e., 2,2′-[sulfanediylbis(benzene-1,4-diyloxy)]diethanol and 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid (DMPA), were synthesized in a one-step . 8. MORGAN, HOLLAND FUND II GILDE INVESTMENTS B.V., Owner name: (1) 1 product ratings - Restoration Shop Fathom Green Firemist Acrylic Urethane Quart Only, Auto Paint. Acrylic Urethane is a two-component water-based gloss coating. A polycarbonate component is characterized by repeating ##STR1## units, and a general formula for a polycarbonate macroglycol is as follows ##STR2## wherein x is from 2 to 35, y is 0, 1 or 2, R either is cycloaliphatic, aromatic or aliphatic having from about 4 to about 40 carbon atoms or is alkoxy having from about 2 to about 20 carbon atoms, and wherein R' has from about 2 to about 4 linear carbon atoms with or without additional pendant carbon groups. Cured plastic is lightweight and has a much lower density than other casting . Found inside – Page 442Polycarbonate soft segment ... O_C_(E|_[CHJ_OC_OOCHZ_Q_N_C H H 6 I l \\ H H o m N 6 Urethane hard segment FIGURE 14.15 An example of a biostable polyurethane: Corethane® (polycarbonate urethane) produced by reacting poly(1,6-hexyl 1 ... This application is a continuation of application Ser. 4,739,013 and U.S. Pat. The "isoprene" part here is the key chemical identity - the letter (so to speak) that repeats in the polymer. Also, does acrylic urethane need clear coat? Urethane and acrylic enamel paints are most commonly used for auto body finishes. Designed for wood and leather coatings, outdoors furniture, flooring and pavements coating applications. Found inside – Page 696Labow, R., Sa, D., Matheson, L., and Santerre, ]., Polycarbonate—urethane hard segment type influences esterase substrate specificity for human-macrophage-mediated biodegradation, Iournal of Biomaterials Science, Polymer Edition, 16(9), ... The reaction continued until a soft, stable foam was produced. Another object of this invention is to provide improved implantable devices and/or prostheses which exhibit an exceptional ability to prevent the formation of cracks and strand severances upon implantation for substantial time periods such as those needed for generally permanent implantation procedures. Overview of materials for Polycarbonate-Urethane, This property data is a summary of similar materials in the MatWeb database for the category "Polycarbonate-Urethane". 1. Cross-linking can be controlled by controlling the reaction temperatures and shading the molar ratios in a direction to be certain that the reactant charge is not isocyanate-rich; alternatively a termination reactant such as ethanol can be included in order to block excess isocyanate groups which could result in cross-linking which is greater than desired. car parts. Acrylic Urethane Satin. WESTMED VENTURE PARTNERS, L.P., NEW YORK, Owner name: Description: 3M 2665B black urethane adhesive is compatible with metal, polycarbonate and thermoplastic materials with a 1.3 to 4 min cure time. It will be understood that the embodiments of the present invention which have been described are illustrative of some of the applications of the principles of the present invention. Prior attempts to control surface fissuring or cracking upon implantation or the like include incorporating antioxidants within a biocompatible polymer and subjecting the biocompatible polymer to various different annealing conditions, typically including attempting to remove stresses within the polymer by application of various heating and cooling conditions. MORGAN, HOLLAND FUND II C/O MORGAN, HOLLAND VEN, Owner name: A spinnable or castable polycarbonate urethane was prepared similar to that of Example 1; however, the ratio of chain extender to polycarbonate soft segment was increased from 1:1 to 2.5:1. Included in the biocompatible materials which are desirable from many points of view but which exhibit a marked tendency to crack or degrade over time are the polyurethane materials and other biocompatible polymers that are of an elastomeric nature.
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