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US 5,164,425 AGranted
Artificial marble composition
AssigneeShowa Denko K.K.
InventorsHiroshi Uchida, Masato Kaneda, Mikito Kitayama
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Abstract
A composition for artificial marble comprising (a) 10 to 60% by weight of an allyl-terminated oligomer, (b) 40 to 86% by weight of an inorganic filler and (c) 0 to 30% by weight of a reactive monomer. The composition provides artificial marble having a deep appearance characteristic of marble and having a high strength and high abrasion resistance.
Claims24
A composition for artificial marble comprising:
- (a) 10 to 60% by weight of an allyl-terminated oligomer selected from the group consisting of
- (1) oligomers represented by the following formula,
- CH.sub.2 .dbd.CHCH.sub.2 O(COArCOOBO).sub.n COArCOOCH.sub.2 CH.dbd.CH.sub.2
- wherein
- B represents a divalent organic residue derived from a diol having 2 to 20 carbon atoms,
- Ar represents a 1,4-, 1,3- or 1,2-phenylene group, and
- n is an integer of from 1 to 100, and
- (2) oligomers having a terminal allyl ester group and having recurring units of (COArCOOBO) and (COArCOO).sub.x Z--O--COArCOO-- in which
- X is an integer of from 2 to 10,
- Z represents an organic residue derived from a polyol having (x+1) hydroxyl groups,
- B represents a divalent organic residue derived from a diol having 2 to 20 carbon atoms, and
- Ar represents a 1,4-, 1,3- or 1,2-phenylene group
- (b) 40 to 86% by weight of an inorganic filler and
- (c) 0 to 30% by weight of a reactive monomer.
11 more elements
Dependencies are inferred from the claim text.