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
1985-07-03
1986-09-16
Michl, Paul R.
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...
524807, 526274, C08L 4302
Patent
active
046123431
ABSTRACT:
A colored polymer emulsion having dispersed therein particles of a copolymer having at least 2.times.10.sup.-5 g-eq./g of the copolymer, of a phosphoric acid group or salt thereof. The copolymer particles have an average particle size of not larger than 1 .mu.m and a minimum film-forming temperature of not higher than 35.degree. C., and have been dyed with a basic dye. The emulsion is capable of forming a film having an improved water resistance and light resistance. The emulsion is prepared by polymerizing a monomer mixture comprising (a - 1) a monomer having a phosphoric acid group or a salt thereof, (a - 2) a hydrophobic monomer and (b) a optional hydrophilic monomer by an emulsion polymerization procedure, and then incorporating a basic dye to the obtained polymer emulsion, or by carrying out the emulsion polymerization in the presence of a basic dye.
REFERENCES:
patent: 3449303 (1969-06-01), Caldwell
patent: 3766252 (1973-10-01), Schmidt
patent: 4177179 (1979-12-01), Kurihara
patent: 4487859 (1984-12-01), Martino
Emura Noriaki
Oda Yasuhiro
Okuzono Shuichi
Shintani Takashi
Michl Paul R.
Toya Soda Manufacturing Co., Ltd.
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