Kenneth E. Atkins - South Charleston WV Raymond C. Gandy - St. Albans WV William A. Larck - Scott Depot WV
Assignee:
Union Carbide Corporation - Danbury CT
International Classification:
B32B 2538 C09J 504
US Classification:
428414
Abstract:
Articles manufactured by bonding two or more shaped fiber reinforced polymeric substrates together can be made by an improved process comprising: applying a self-crosslinking acrylic polymer latex primer to the bonding surface of each of said substrates and allowing said primer to dry, applying an epoxy adhesive, in an amount sufficient to effect adhesion, to the bonding surfaces thus primed, and contacting the bonding surfaces thus primed and epoxied with one another, under conditions sufficient to cure the epoxy, to achieve bonding.
Low Shrinking Thermosetting Molding Compositions Having Reduced Initial Viscosity
Kenneth E. Atkins - South Charleston WV Raymond C. Gandy - St. Albans WV
Assignee:
Union Carbide Corporation - New York NY
International Classification:
C08G 6316 C08G 6348 C08G 6376
US Classification:
260 22CB
Abstract:
There is disclosed thickened, low shrink curable molding compositions having reduced initial viscosity and the method of making the same. The low shrink, curable thermosetting compositions have a thermoplastic low profile additive and viscosity reducing agent incorporated therein, said thermoplastic low profile additive being a vinyl acetate polymer, a saturated polyester or mixtures thereof and said viscosity reducing agent being an aliphatic monocarboxylic acid having at least 6 carbon atoms in the chain.
Kenneth E. Atkins - South Charleston WV Raymond C. Gandy - St. Albans WV
Assignee:
Union Carbide Corporation - Danbury CT
International Classification:
C08L 6706
US Classification:
525 27
Abstract:
A molding composition is provided which, through the use of a lactone monomer, improves the surface characteristics of the molded composite. In particular, the use of. epsilon. -caprolactone (oxepane-2-one) provides a smoother surface and enhanced dimensional stability.
Gary Charles Rex - Nitro WV Kenneth Earl Atkins - South Charleston WV
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT
International Classification:
C08K 549 C08F 800 C08F 2000
US Classification:
524115
Abstract:
Molding compositions comprising certain epoxy compounds, at least one antioxidant, an unsaturated thermosetting resin and an olefinically unsaturated monomer are disclosed. The disclosed compositions can provide enhanced yellowing resistance to articles molded from the compositions, particularly when the molding compositions contain white pigment. Processes from molding articles having enhanced yellowing resistance are also disclosed.
Composition Of Unsaturated Polyester, Copolymerizable Monomer And Poly (Vinyl Ether) Shrinkage Control Agent
Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT
International Classification:
C08L 6706 C08K 714
US Classification:
523523
Abstract:
A molding composition comprises a) an unsaturated polyester resin, b) a copolymerizable olefinically unsaturated monomer, c) a pigment, d) fiber reinforcement and e) a poly(vinyl ether) polymer with a weight average molecular weight of at least 50,000 to control shrinkage and promote the uniform distribution of the pigment in the molding composition.
There is disclosed thickened, low shrinkage polyester molding compositions having improved pigmentation. The improved pigmentation in thickenable polyester molding compositions is achieved by using as the low profile additive a vinyl acetate/maleic acid copolymer, and optionally incorporating a surfactant in the composition.
Polyurethane Low Profile Additives For Polyester-Based Molding Compositions
Gary C. Rex - Cross Lanes WV Kenneth E. Atkins - South Charleston WV
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT
International Classification:
C08L 7504 C08L 6706
US Classification:
525 28
Abstract:
Polyurethanes having utility, for example, as low profile additives, in polyester-based molding compositions, a method of preparing polyester-based molding compositions containing such polyurethane low profile additives and thermoset articles made with the method are disclosed. The disclosed polyurethane low profile additives can enhance the pigmentability of molded articles comprising the low profile additives. The low profile additives comprise the reaction product of a hydroxyl-terminated prepolymer and an anhydride such as a dicarboxylic acid anhydride, preferably reacted in the presence of a catalyst comprising an amine having from about 4 to 20 carbon atoms.
Jonathan Jepson, Carolyn Lawless, James Sizemore, Miki White, Elizabeth Pesce, Trese White, Julia Coleman, Andrea Slape, Lola Phillips, Shiralee Piculell, Fred Tin, Amy Smith