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:
Dec. 30, 1986
Filed:
Jul. 24, 1985
Applicant:
Inventors:
Yoshiki Matsunaga, Sagamihara, JP;
Toshiaki Sugiyama, Hatano, JP;
Eikichi Maekawa, Samukawamachi, JP;
Assignee:
Kyoritsu Yuki Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 50 ; 536 45 ; 162175 ;
Abstract
The present invention relates to a process for producing novel cationic starch comprising the step of reacting starch having cyanoethyl groups or starch having cyanoethyl groups and quaternary aminoalkyl groups with hydroxylamine or the salts thereof to amidoximate the reaction product. The resulting cationic starch of the invention exhibits significant advantages as compared with those of conventional cationic starch as a dry strengthening agent.