The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1985
Filed:
Oct. 28, 1982
Applicant:
Inventors:
Assignee:
Onoda Cement Co., Ltd., Yamaguchi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156 39 ; 156 42 ; 156 44 ; 156284 ; 1563088 ; 427 27 ; 427 32 ; 428703 ;
Abstract
Described is a novel gypsum board and a manufacturing method therefor by first forming a particulate layer securely adhered to the base paper for the gypsum board and by utilizing an adhesion layer which has been formed by the reaction of the particulate layer for pasting the gypsum core material on the base paper for board, so that adhesion between the core material and the base paper is enhanced as well as the strength of the gypsum board itself is improved.