Title:
SURFACE TREATING AGENT FOR PAPER
Document Type and Number:
Japanese Patent JP3767058
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a surface treating agent for paper manifesting an excellent effect on a surface strength and printing properties by including a grafted starch polymer obtained by polymerizing a specific vinyl monomer mixture in an aqueous solution containing a cationic starch as an active ingredient.
SOLUTION: A grafted starch polymer is obtained by polymerizing 20-80 pts.wt. vinyl monomer mixture comprising 50-99mol% acrylamide and/or methacrylamide, and 1-30mol% anionic vinyl monomer and 1-20mol% cationic vinyl monomer copolyinerizable with the before vinyl monomer, in an aqueous solution containing 20-80 pts.wt. cationic starch, or by polymerizing 20-80 pts.wt. acrylamide and/or methacrylamide in an aqueous solution containing 20-80 pts.wt. cationic starch. The objective surface treating agent for paper is obtained by using the grafted starch polymer as an active ingredient.
Inventors:
Hideto Yamada
Yuji Baba
Yuji Baba
Application Number:
JP35985396A
Publication Date:
April 19, 2006
Filing Date:
December 24, 1996
Export Citation:
Assignee:
Star light pmc corporation
International Classes:
C08L51/00; D21H19/10; C08F251/00; (IPC1-7): D21H19/10; C08F251/00; C08L51/00
Domestic Patent References:
| JP7109691A | ||||
| JP4050395A | ||||
| JP2026994A | ||||
| JP62104998A |