Resin composition for artificial marble, bulk molding compound and sheet molding compound using the same, and process for preparing artificial marble using the same
申请人:Hitachi Chemical Co., Ltd.
公开号:EP0607900A2
公开(公告)日:1994-07-27
Disclosed are a resin composition for artificial marble comprising:
(I) an unsaturated polyester obtained by using a divalent alcohol containing hydrogenated bisphenol A as an essential component and an α,β-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.
公开了一种人造大理石用树脂组合物,其中包括
(I) 一种不饱和聚酯,由含有氢化双酚 A 作为基本成分的二价醇和 α,β-乙烯基不饱和二元酸制得;
(II) 一种可共聚的单体;
(III) 可与不饱和聚酯(I)和可共聚单体(II)共聚的不饱和醇;以及
(IV) 低分子量苯乙烯-马来酸酐共聚物,其苯乙烯与马来酸酐的摩尔比为 3:1 至 7:1,平均分子量小于 5,000、
其中不饱和醇(III)的使用量为不饱和醇(III)与可共聚单体(II)的重量比为1:99至50:50,不饱和聚酯(I)与(可共聚单体(II)+不饱和醇(III))的重量比为30:70至70:30,苯乙烯-马来酸酐共聚物(IV)与(不饱和聚酯(I)+可共聚单体(II)+不饱和醇(III))的重量比为10:90至40:60、
使用该化合物的块状模塑化合物或片状模塑化合物,以及使用该化合物制备人造大理石的工艺。