04800123 is referenced by 40 patents and cites 5 patents.

A scratch resistant coating for peroxide curable urethane elastomers comprises a radiation curable composition including at least one polyfunctional monomer having three or more acryloloxy groups per molecule, preferably five or more acryloloxy groups per molecule, and at least one N-vinyl imido group containing monomers. The coating is applied to at least one mold surface and the mold is closed for receiving the urethane elastomer. Following curing of the urethane elastomer, a coated, molded product is obtained which has improved scratch and solvent resistant properties on the surface or surfaces of the mold to which the in-mold coating was applied. The coating composition in combination with the elastomer, and the method disclosed in the present invention are especially well suited for coating plastic, optically clear lenses, i.e., those to be used in eye glasses.

Title
In-mold scratch resistant coating for peroxide curable urethane elastomers
Application Number
7/92609
Publication Number
4800123
Application Date
September 3, 1987
Publication Date
January 24, 1989
Inventor
Rudolph H Boeckeler
Grafton
WI, US
Agent
C Thomas Sylke
Fred Wiviott
John C Cooper III
Assignee
Freeman Chemical Corporation
WI, US
IPC
B32B 27/00
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