Patent EP0039588A2 successfully refreshed from Google Patents.
EP0039588A2
Expired / Lapsed
EP
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In-mold coating compositions and a method for making coated molded articles
Assignee: Freeman Chemical Corp
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Filing: 1981-05-01
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Granted: —
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Expires: 2001-05-01
Abstract
Abstract An in-mold coating composition includes a polyurethane polyacrylate or polymethacrylate which is a reaction product, substantially free of unreacted - NCO radicals, of an organic diisocyanate, a hydroxy alkyl acrylate or methacrylate and an organic diol in combination with copolymerizable alpha-, beta-ethylenically unsaturated monomer. The coating composition also contains initiators for addition polymerization and fillers possibly including inert particulate fillers, pigments, and may contain mold release agents. The coating composition is applied in a matched metal mold after a fiber-reinforced thermoset plastic article has been shaped within the mold. The coating composition is applied by opening the mold and introducing the coating composition, thereafter closing the mold and retaining the mold in the closed condition until the plastic article is further cured and the coating composition is cured.
Inventors
- 👤 James R. Prom
- 👤 Robert F. Navin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 21:41
CPC Classifications
C; C08; C08J; C08J5/00; B; B29; B29C; B29C37/00; B29C37/0025; B29C37/0028; C08F; C08F299/00; C08F299/02; C08F299/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/672; B29C2791/00; B29C2791/001; B29C43/00; B29K; B29K2075/00; B29K2105/00; B29K2105/06; B29K2105/16; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
An in-mold coating composition comprising A. a polyurethane polyacrylate or polymethacrylate which is the reaction product, substantially free of unreacted -HCO radicals of (1) an organic diisocyanate; (2) a hydroxy alkyl acrylate or methacrylate; (3) an organic diol, selected from alkylene diols, alkylene diol esters and polyesters; alkylene diol ethers and polyethers; B. copolymerizable alpha-, beta-ethylenically unsaturated monomer; C. an initiator for addition polymerization; D. fillers;
Claim 2
Dependent Claim
66 words
An in-mold coating composition comprising A. a polyurethane polyacrylate or polymethacrylate which is the reaction product, substantially free of unreacted -HCO radicals of (1) an organic diisocyanate; (2) a hydroxy alkyl acrylate or methacrylate; (3) an organic diol, selected from alkylene diols, alkylene diol esters and polyesters; alkylene diol ethers and polyethers; B. copolymerizable alpha-, beta-ethylenically unsaturated monomer; C. an initiator for addition polymerization; D. fillers;
Claim 3
Dependent Claim
47 words
A composition as claimed in claim 1 wherein the molar ration of said organic diol to said hydroxy alkyl acrylate or methacrylate is 0.15 to 0.5 and the amount of said organic diisocyanate is sufficient to develop a NCC/OII ratio of 0.9 to 1.0 in the composition.
Claim 4
Dependent Claim
17 words
A composition as claimed in claim 1 or 2 wherein the said organic diisocyanate is toluene diisocyanate.
Claim 5
Dependent Claim
24 words
A composition as claimed in claim 1, 2 or 3 wherein the said organic diol is difunctional polyester of adipic acid and diethylene glycol.
Claim 6
Dependent Claim
18 words
A composition as claimed in claim 1, 2 or 3 wherein the said organic diol is polypropylene glycol.
Claim 7
Dependent Claim
38 words
A composition as claimed in any one of claims 1 to 5 wherein 0.075 to 5.0 parts by weight of the slid polyurethane polyacrylate are provided for each part by weight of the said ethylenically unsaturated copolymerizable monomer.
Claim 8
Independent Claim
114 words
A method for producing a coated, molded, fiber-reinforced thermoset plasticsarticle comprising producing a fiber-reinforced, thermoset plastic article in a matched metal mold; opening the said mold after the article has attained its intended shape; introducing into the open mold a composition as claimed in any one of claims 4 to 6 closing the mold and thereby spreading the said composition over at least one surface of the said article; retaining the mold in the closed condition at a molding temperature until the said article is further cured and the said composition is cured; opening the mold and recovering a molded, fiber-reinforced thermoset plastic article having an adherent coating over at least one surface thereof.
Claim 9
Dependent Claim
62 words
A method as claimed in claim 7 wherein said fiber-reinforced thermoset plastics material is made from a composition comprising: A. an unsaturated polyester resin B. a copolymerizable monomer for the unsaturated polyester resin C. fillers D. a catalyst for the condensation polymerization of the ursaturated polyester resin with the copolymerizable monomer E. a mold release agent; and F. glass fiber reinforcing material.
Claim 10
Dependent Claim
14 words
A molded article produced by a method as claimed in claim 7 to 8.
References Cited (Backward Citations)
No citation records indexed.
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