Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1989-01-13
1991-04-16
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106465, 423430, 423432, C09C 102
Patent
active
050079646
ABSTRACT:
Disclosed is a calcium carbonate which is 25 to 55 m.sup.2 /g in BET specific surface area, 5 to 110 in the ratio of BET specific surface area (m.sup.2 /g)/mean particle size (.mu.m), at least 120 ml/100 g in oil absorption as determined by the Ogura method and at least 1.8 g/g in water absorption, and process for preparing the same. The calcium carbonate is formulated into a coating composition for forming a heat-sensitive recording layer or intermediate layer of a heat-sensitive recording paper or for forming an ink-jet recording paper.
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"Calcium Carbonate Extender Pigments", Siesholtz et al., pp. 390-395.
Deguchi Takashi
Kaneguchi Toshio
Kondo Satoshi
Tsukisaka Ryogo
Bell Mark L.
Klemanski Helene
Shiraishi Central Laboratories Co., Ltd.
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