Unsaturated polyester resins

Details Unsaturated polyester resins Unsaturated polyester resins

C - Chemistry, Metallurgy

08

K

400/1705, 400/57

C08K 5/01 (2006.01) C08L 67/06 (2006.01)

Patent

CA 1163396

384599 ABSTRACT An unsaturated halogenated or non-halogenated polyester resin composition for open lay-up moulding and containing styrene as an agent for cross-linking during curing additionally contains 0.1 to 5 by weight, based on the total weight of the composition, of at least one C18-40.alpha. - olefinecompound which is theoretically capable of taking part in the cross-linking reaction. When the composition contains a non-halogenated polyester resin, then the .alpha.-olefine compound itself serves to restrict styrene evaporation from the composition. For halogenated polyester resin compositions the .alpha.-olefine, although not usually by itself providing such a marked restriction of styrene evaporation, does allow in corporation into the composition of a waxy compound in an amount sufficiently large to achieve the desired styrene evaporation restriction without deterioration of the adhesion properties of the composition during lay-up.

384599

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