Title:
PAPER COATING COMPOSITION AND COATED PAPER
Document Type and Number:
Japanese Patent JP3788553
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject composition having excellent prevention effect to dirt, etc., of back-up rolls under a blade frequently generating in high speed coating, caused by reduction of high shear viscosity and improvement of mechanical stability.
SOLUTION: This paper coating composition is composed of 100 pts.wt. or pigment, 2-8 pts.wt. of water-soluble polymer and 5-12 pts.wt. (based on solid content) of a copolymer latex having following composition. (A) 25-55 pts.wt. of an aliphatic conjugated diene-based monomer, (B) 0-2 pts.wt. of an ethylenic unsaturated acid monomer, (C) 0.5-7 pts.wt. of an amide group- containing unsaturated monomer and (D) 36-74.5 pts.wt. of other copolymerizable unsaturated monomer, A+B+C+D=100 pts.wt. The copolymer latex is obtained by emulsion polymerizing the components A-B while keeping a polymer conversion at the finish of charge of the total monomers to ≤70% and an average particle diameter of the resultant copolymer latex is 70-150 nm and a gel content is ≥85%.
Inventors:
KAMADA Kazunori
Kuniaki Kawabe
Yukie Ogawa
Kitahara Mitsuo
Kuniaki Kawabe
Yukie Ogawa
Kitahara Mitsuo
Application Number:
JP29427898A
Publication Date:
June 21, 2006
Filing Date:
October 15, 1998
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
D21H19/58; (IPC1-7): D21H19/58
Domestic Patent References:
| JP11092509A | ||||
| JP5209397A | ||||
| JP5279406A | ||||
| JP63227892A | ||||
| JP6184993A | ||||
| JP8269899A | ||||
| JP8269246A | ||||
| JP10001504A | ||||
| JP11080279A | ||||
| JP6228210A |
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