Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-04-30
1998-07-21
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528272, 528300, 528302, 528303, 528306, 528308, 525 41, 525 43, 525 44, 525168, 525437, 525445, 523200, 523202, 523204, 523205, 523500, 524492, C08F 800, C08L 6706
Patent
active
057836353
ABSTRACT:
An unsaturated polyester resin composition which comprises 100 parts by weight of a resin mixture comprising 25 to 80 parts by weight of an unsaturated polyester, 20 to 60 parts by weight of a comonomer and 1 to 10 parts by weight of a particulate crosslinked polymer and 100 to 400 parts by weight of an inorganic filler and in which the difference in refractive index between a product of copolymerization of the unsaturated polyester with the comonomer and the inorganic filler is 0.02 or below; and molded articles produced by curing the resin composition by heating under pressure. The resin composition has a high productivity, exhibits a texture excellent in both light transmittance and gloss, and is excellent in water resistance and which is suitable for the production of artificial marble.
Akiyama Koichi
Morita Ken-ichi
Terada Hideki
Acquah Samuel A.
Takeda Chemical Industries Ltd.
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