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AssigneeSartomer Technology Company, Inc.
InventorsMichael A. Bailey, Richard Costin
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A composition useful as a gel coat, binder, laminating resin or molding resin comprising (A) unsaturated polyester resin which is the reaction product of one or more polyols and one or more ethylenically unsaturated polycarboxylic acids, anhydrides, or amides, and optionally one or more polyethylenically unsaturated monomers, and/or a vinyl ester resin, (B) one or more first monomer selected from the group consisting of styrene, vinyl toluene, methyl methacrylate, N-vinyl pyrolidone, ethylene glycol dimethacrylate and the dimethacrylate of alkoxylated Bisphenol A, and (C) a second monomer selected from the group consisting of metal salts of an alpha, beta-ethylenically unsaturated carboxylic acids without a loss in heat distortion temperature properties.
A composition in the form of a gel coat, binder, or laminating resin comprising (A) an unsaturated polyester resin which is the reaction product of one or more polyols and of one or more ethylenically unsaturated polycarboxylic acids, anhydrides, or amides, optionally of one or more saturated or aromatically unsaturated polycarboxylic acids and optionally of one or more polyethyleiically unsaturated monomers and/or a vinyl ester resin, (B) at least one first monomer selected from the group consisting of styrene, vinyl toluene, methyl methacrylate, N-vinyl pyrolidone, ethylene glycol dimethacrylate and the dimethacrylate of alkoxylated Bisphenol A, (C) at least 0.5 part by weight per 100 parts of (A), (B), and (C) of at least one second monomer selected from the group consisting of metal salts of alpha, beta-ethylenically unsaturated carboxylic acids wherein said metal is selected from the group consisting of calcium, zinc, magnesium, and aluminum, and (D) a peroxy free radical initiator.
The composition according to claim I wherein said unsaturated polyester is the reaction product of maleic anhydride, ethylene glycol, and Bisphenol A dicyclopentadiene.
A method of of reducing the amount of volatile emissions during the preparation of a a polyester gel coat, binder, laminating resin, or molding resin comprising preparing and reacting in the presence of a peroxy free radical initiator a composition comprising an unsaturated polyester resin which is the reaction product of one or more polyols and of one or more ethylenically unsaturated polycarboxylic acids, anhydrides, or arnides, and/or a vinyl ester resin, one or more first monomer selected from the group consisting of styrene, vinyl toluene, methyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, and the dimethacrylate of alkoxylated Bisphenol A, and at least 0.5 part per 100 parts of polyester resin and monomers of one or more second monomer selected from the group consisting of calcium, zinc, nagnesium and aluminum salts of alpha, beta-ethylenically unsaturated carboxylic acids.
Dependencies are inferred from the claim text.