Scratch resistant polymer compositions and articles

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524261, 524267, 524449, 524505, 524506, C08J 510, C08K 334, C08L 2316

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active

057313768

ABSTRACT:
Filled polymer compositions based on polypropylene block copolymer, particularly medium and medium to high impact grades, and a plate like filler such as talc, have improved visual scratch resistance by the inclusion of a polyorganosiloxane, particularly a polyalkylsiloxane such as polydimethylsiloxane. Silicone oils having viscosities of about 30,000 cSt are especially useful. Further benefits are obtained by the further inclusion of a fatty acid amide and/or by the use of passivated filler, particularly by the inclusion of an epoxy resin.

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"Handbook of Epoxy Resins" by Lee and Neville (1967) pp. 4-58 and 4-59.
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Chemical Abstracts, vol. 107, No. 16, Oct. 19, 187,see p. 43,abstract 135290t, & JP,6286037 (Abe et al) 1987.

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