Thickened moulding compositions

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

400/5724

C08L 67/06 (2006.01) C08F 290/14 (2006.01) C08F 299/04 (2006.01) C08L 33/04 (2006.01) C08L 63/10 (2006.01) C08L 67/02 (2006.01)

Patent

CA 1336305

A moulding composition comprises a fibrous reinforcement, an ethylenically unsaturated, essentially amorphous, polymer, a cross-linking agent copolymerizable therewith and, as a thickener and low profile/shrinkage control agent, a crystalline saturated polyester which (a) has a number average molecular weight of from 700-10,000 inclusive, (b) has a melting point within a range of from 50-140°C inclusive, and (c) is soluble in an equal weight of the cross- linking agent at 100°C and yet insoluble therein at 30°C.

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