Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1996-05-15
1999-01-05
Morgan, Kriellion S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524544, 524546, C08L 2712
Patent
active
058563946
ABSTRACT:
The invention provides a first water-based fluorine-containing paint including a water-based emulsion containing a fluorine-containing copolymer dispersed therein, and 1-50 parts by weight of a hardener per 100 parts by weight of the copolymer. The copolymer is prepared by copolymerizing 30-65 mol % of a fluoroolefin, 14-69 mol % of a copolymerizable vinyl-containing compound, and 1-30 mol % of a hydroxyl-containing compound and/or a polymerizable carboxyl-containing compound. The hardener is prepared by mixing 1 part by weight of a self-emulsifiable polyisocyanate with 0.01-1 part by weight of a compound containing in the molecule an oxyethylene unit and an alkoxysilyl group. When mixed with the emulsion, the hardener becomes well dispersed therein. The invention further provides a second water-based fluorine-containing paint including a water-based emulsion containing a fluorine-containing copolymer dispersed therein, and a hardener which is a compound containing in the molecule at least two hydrazino groups. The fluorine-containing copolymer is prepared by emulsion polymerization of 30-65 mol % of a fluoroolefin, 0.1-20 mol % of a polymerizable unsaturated carboxylic acid, 1-30 mol % of a polymerizable acetoacetylallyl compound, and 20-65 mol % of one of a vinyl ester and a vinyl ether. The second paint does not cure at ambient temperature, even after the hardener has been added thereto, and thus is usable as a one-package paint.
REFERENCES:
patent: 4631326 (1986-12-01), Koishi et al.
Hirashima Yoshi
Kobayashi Satoru
Maeda Kazuhiko
Tsutsumi Kentaro
Central Glass Company Limited
Morgan Kriellion S.
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