Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1988-09-30
1990-05-08
Yarbrough, Amelia Burgess
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
10628734, C04B 1404
Patent
active
049235206
ABSTRACT:
Spherical fused silica with an average particle diameter within the range of 10 to 50 .mu.m and having a particle size distribution of 1 to 100 .mu.m in diameter is a useful filler for resin compositions having improved mechanical and electrical properties as well as good flowability and low viscosity. The spherical fused silica is preferably treated on its surface with a silane coupling agent. Resin compositions containing said spherical fused silica as the major filler are particularly useful as casting materials.
REFERENCES:
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patent: 3769126 (1973-10-01), Koleck
patent: 3845006 (1974-10-01), Erneta
patent: 4042550 (1977-08-01), Tuller et al.
patent: 4476258 (1984-10-01), Hiles
SPE Journal, Sep. 1969-vol. 25, Spherical Glass Fillers, Otto R. Strauch.
Ullmanns Encyklopadie der Technischen Chemie, vol. 24, pp. 560-561.
K. Hiragushi et al, Yogyo-Kyokai Shi, 90(3), 105 (1982).
Anzai Kenji
Hamabe Tatsuo
Burgess Yarbrough Amelia
Ciba-Geigy Corporation
Falber Harry
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