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:
Jun. 21, 1977
Filed:
May. 30, 1974
Applicant:
Inventors:
Yoichi Tominaga, Muko, JA;
Yasuo Shibahara, Kyoto, JA;
Assignee:
Sanyo Chemical Industries, Ltd., Kyoto, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
1621 / ; 1621 / ; 1621 / ; 162173 ; 162175 ; 162177 ; 162180 ; 428514 ;
Abstract
A process for surface sizing paper with a surface sizing composition, which comprises a copolymer of acrylic or methacrylic ester, alkali metal salts of acrylic or methacrylic acid, and acrylic or methacrylic acid, or ammonium or lower alkyl amine salts thereof, where substantially no scum forms in the press operation, even after 8 hours.
Tominaga, Yoichi. (1977). Surface sizing of paper with an acrylic copolymer where scum formation (U.S. Patent No. 4030970). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4030970
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile