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:
Jul. 21, 1987
Filed:
Oct. 22, 1985
Applicant:
Inventors:
Assignee:
Dic-Hercules Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524272 ; 524764 ; 524798 ; 525544 ;
Abstract
A rosin emulsion sizing agent comprising 20 to 50% by weight of fortified rosin, 2 to 30% by weight of a saponification product of a styrene/acrylic acid copolymer or a styrene/methacrylic acid copolymer, and the remainder being water.
Ohta, Koji. (1987). Rosin emulsion sizing agent (U.S. Patent No. 4681909). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4681909
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile