C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
117/48, 400/5406
C08L 61/04 (2006.01) C08K 3/34 (2006.01) C08K 9/04 (2006.01) C08L 61/20 (2006.01) C08L 61/24 (2006.01) C08L 61/28 (2006.01) C09C 1/42 (2006.01) C09C 3/10 (2006.01)
Patent
CA 2000472
Abstract of the Disclosure Composite particles comprising talc particles covered with a layer of a condensate of formaldehyde and at least one member selected from the group consisting of aminotriazine type compounds, urea and phenols, the talc surface being chemically bonded to the condensate layer. The composite particles can be prepared by a method which comprises reacting formaldehyde with at least one member selected from the group consisting of aminotriazine type compounds, urea and phenols in an aqueous medium in the presence of talc particles to form a layer of a condensate on the surface of the talc particles. Amino resin compositions containing the composite particles have mechanical strength comparable to those containing a cellulosic filler and excellent resistance to thermaldiscoloration and, therefore, they can be used as molding materials for heat resistant electric machine parts and heat resistant tablewares. 2 7
Mizushima Noboru
Takenaka Masaaki
Daiwa Company Limited
G. Ronald Bell & Associates
Mizushima Noboru
Takenaka Masaaki
LandOfFree
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