Title:
COMPOSITION FOR COATED PAPER
Document Type and Number:
Japanese Patent JP3150512
Kind Code:
B2
Abstract:
PURPOSE: To obtain a paper-coating composition composed of a copolymer latex obtained by the emulsion polymerization of a specific monomer and having well-balanced adhesion and blister resistance by adjusting the get fraction of the latex, the molecular weight of a specific soluble component and the particle diameter within respective specific ranges.
CONSTITUTION: This composition for coated paper contains a copolymer latex produced by carrying out the emulsion copolymerization of (A) 20-60 pts.wt. of an aliphatic conjugated diene monomer, (B) 0.5-10 pts.wt. of an ethylenic unsaturated acid monomer and (C) 30-79.5 pts.wt. of other copolymerizable monomer [e.g. styrene, methyl methacrylate and (meth)acrylamide] using a chain transfer agent composed of 0.1-3 pts.wt. of a methylstyrene dimer and 0.1-3 pts.wt. of a sulfur-containing compound under a condition to satisfy the formula XY/Z≥150X+10000 wherein X (wt.%) is get fraction of the emulsion polymerized latex, Y is weight-average molecular weight of tetrahydrofuran- soluble component and Z (nm) is particle diameter. A coated paper suitable for web offset printing can be produced by the use of the composition.
Inventors:
Koji Takano
Akira Nakagami
Kazuo Yamamoto
Kenichi Nakane
Akira Nakagami
Kazuo Yamamoto
Kenichi Nakane
Application Number:
JP31780593A
Publication Date:
March 26, 2001
Filing Date:
December 17, 1993
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08F236/04; C09D109/10; C09D121/00; D21H19/20; D21H19/56; D21H19/58; (IPC1-7): D21H19/58
Domestic Patent References:
| JP559693A | ||||
| JP5230117A | ||||
| JP4343795A | ||||
| JP3113096A | ||||
| JP753610A |