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:
Jan. 03, 1984
Filed:
Jul. 20, 1982
Applicant:
Inventors:
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428283 ; 162146 ; 162160 ; 428288 ; 428290 ; 428323 ; 428325 ;
Abstract
Disclosed is improvement of heat-stability of a backing sheet for cushioned floor during foaming step of gelled polyvinyl chloride resin. The backing sheet comprises a thermoplatic resin fibrous material, another fibrous material and an inorganic filler, to which a phenolic antioxidation agent or a phosphitic antioxidation agent is added.
Nakamura, Motofumi. (1984). Backing sheet for cushioned floor (U.S. Patent No. 4424255). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4424255
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile