To provide a copolymer latex being improved in the pick strength of coated paper and being excellent in production operability.
There is provided a copolymer latex which is prepared by the emulsion polymerization of a monomer mixture containing (a) 1 to 15 mass% ethylene-based unsaturated carboxylic acid monomer, (b) 85-99 mass% monomer other than the monomer (a) and copolymerizable with the monomer (a) (provided that (a)+(b)=100 mass%), wherein the ethylene-based unsaturated carboxylic acid monomer (a) contains (a-I) an ethylene-based unsaturated monocarboxylic acid monomer and (a-II) an ethylene-based unsaturated dicarboxylic acid monomer as essential components, and when taking the mass ratio of the ethylene-based unsaturated monocarboxylic acid monomer (a-I) to the total monomer mixture as A1 mass%, and the mass ratio of the ethylene-based unsaturated dicarboxylic acid monomer (a-II) to the total monomer mixture as A2 mass%, the relationship A1/A22 is satisfied, and wherein the toluene insoluble part of the copolymer exceeds 96 mass%.
OTA NORIFUMI
NAGASAKI KOSUKE
| JPS63162712A | 1988-07-06 | |||
| JP2006182972A | 2006-07-13 | |||
| JP2004124312A | 2004-04-22 | |||
| JPH06248004A | 1994-09-06 | |||
| JPS63162712A | 1988-07-06 | |||
| JP2004182898A | 2004-07-02 | |||
| JP2002226524A | 2002-08-14 | |||
| JPS6038415A | 1985-02-28 | |||
| JPH1017602A | 1998-01-20 | |||
| JP2000355670A | 2000-12-26 |
Hideto Asamura
Hajime Asamura
Katsunori Ando
Yukihiro Ikeda
Yuichiro Asano
Next Patent: ADHESIVE RESIN COMPOSITION, AND LAMINATE CONTAINING THE SAME