Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1983-05-26
1985-06-18
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523439, 523457, 523467, 523468, 523523, 524425, 524426, 524427, 524437, 524445, 524492, 524494, 524496, 524538, 525107, 525108, 525111, 525113, 525179, 525226, 525305, 525316, C08K 334, C08K 310, C08K 340, C08F28300
Patent
active
045241627
ABSTRACT:
This invention is directed to curable molding compositions containing a mixture of a poly(acrylate); a polymerizable ethylenically unsaturated monomer which serves to crosslink the poly(acrylate) to a thermoset product; a crosslinkable vinyl monomer having a reactivity ratio (r.sub.1) with styrene of greater than one and at least one of the following: (i) a second crosslinkable vinyl monomer having a reactivity ratio (r.sub.1) with styrene of greater than one, (ii) an epoxy compound having at least one 1,2-epoxy group per molecule, and (iii) an unsaturated fatty acid ester; and a thermoplastic polymer low profile additive. The curable molding compositions exhibit improved shrink control during the curing reaction. This invention is also directed to fiber reinforced thermoset resin articles which exhibit generally improved surface appearance quality and can be produced by a rapid injection molding process from the curable molding compositions.
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Lilling Herbert J.
Trinker Steven J.
Union Carbide Corporation
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