Title:
BOARD BASE PAPER
Document Type and Number:
Japanese Patent JP2000110091
Kind Code:
A
Abstract:
To obtain a high-quality gypsum board by coating a gypsum board base paper with an aqueous solution of a water-soluble polymer such as polyvinyl alcohol to improve the adhesion between the base paper and gypsum core material.
This gypsum board is obtained by coating the reverse face of a gypsum board base paper representing the adhesive surface to a gypsum core material with a 1-10 wt.% aqueous solution of a water-soluble polymer, e.g. a low-polymerization degree and low-saponification degree polyvinyl alcohol with a polymerization degree of 500-2,200 and saponification degree of 80-90 mol%, at 0.25-5 g/900 cm2 on a solid basis followed by conducting a drying treatment.
Inventors:
NAGAI HIROYOSHI
ABE KOJI
MORIKIYO KOJI
OBUKA NAOTOSHI
ABE KOJI
MORIKIYO KOJI
OBUKA NAOTOSHI
Application Number:
JP28429098A
Publication Date:
April 18, 2000
Filing Date:
October 06, 1998
Export Citation:
Assignee:
CHIYODA UTE CO LTD
International Classes:
E04C2/04; B32B13/08; D21H19/20; (IPC1-7): D21H19/20; B32B13/08; E04C2/04
Attorney, Agent or Firm:
Kazuo Gero (1 person outside)