Artificial granite solid material

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United States of America Patent

PATENT NO 5338584
SERIAL NO

07608482

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Abstract

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A granitic stone ( so-called Mikage-ishi)-like artificial solid material produced by impregnating a paper sheet having a granitic pattern with a thermosetting resin to give a paper containing from 25 to 60% by weight of the resin at the dry basis; drying the resin-impregnated paper sheet; and hot-pressing a laminate comprising a plurality of the dried sheets; is claimed, said paper mainly comprising (A) from 20 to 80% by weight of cellulose pulp, (B) from 2 to 40% by weight of an artificial fiber, (C) from 10 to 70% by weight of an inorganic filler less than 10 .mu.m in average diameter, and (D) from 1 to 30% by weight of a fine-grained additive consisting of grains from 10 to 500 .mu.m in average diameter, having a color hue different from that of the inorganic filler (C). The artificial granite solid material has an excellent machinability, workability, and physical properties (strength), as well as good-looking textures (inorganic material like appearance, expressing by itself heaviness, hardness, and thickness; exhibits a very granitic look as a whole) with an ornamental and luxurious appearance.

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Patent Owner(s)

Patent OwnerAddress
AICA KOGYO CO LTD2288 NISHIHORIE KIYOSU-SHI AICHI 452-0917
KOHJIN CO LTD1-1 SHINBASHI 1-CHOME MINATO-KU TOKYO-TO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kamijo, Masayasu Fuji, JP 3 22
Kamiya, Takashi Aichi, JP 100 1129
Kubota, Yoshikazu Fujinomiya, JP 19 74
Otsu, Hiroshi Aichi, JP 4 12

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