Resin composition for artificial marble, bulk molding compound a

Details Resin composition for artificial marble, bulk molding compound a Resin composition for artificial marble, bulk molding compound a

1994-01-13

1994-10-18

Short, Patricia A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523516, 523523, 523527, 525 48, 525170, C08L 6706

Patent

active

053569539

ABSTRACT:
Disclosed are a resin composition for artificial marble comprising:
(I) an unsaturated polyester obtained by using a divalent alcohol containing hydrogenated hisphenol A as an essential component and an .alpha.,.beta.-ethylenic unsaturated dibasic acid;
(II) a copolymerizable monomer;
(III) an unsaturated alcohol which can be copolymerized with the unsaturated polyester (I) and the copolymerizable monomer (II); and
(IV) a low molecular weight styrene-maleic anhydride copolymer having a molar ratio of styrene to maleic anhydride being 3:1 to 7:1 and a number average molecular weight of less than 5,000,
wherein the unsaturated alcohol (III) is used in such an amount that the weight ratio of the unsaturated alcohol (III) to the copolymerizable monomer (II) is 1:99 to 50:50, the weight ratio of the unsaturated polyester (I) to (the copolymerizable monomer (II)+the unsaturated alcohol (III)) is 30:70 to 70:30, and the weight ratio of the styrene-maleic anhydride copolymer (IV) to (the unsaturated polyester (I)+the copolymerizable monomer (II)+the unsaturated alcohol (III)) is 10:90 to 40:60, a bulk molding compound or sheet molding compound using the same, and a process for preparing artificial marble using the same.

REFERENCES:
patent: 3665055 (1972-05-01), Hatton
patent: 5281633 (1994-01-01), Okuno

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