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:
Mar. 18, 1986
Filed:
Feb. 06, 1984
Applicant:
Inventors:
Assignees:
Nippon Petrochemicals Co., Ltd., Tokyo, JP;
Arakawa Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; D21H / ;
U.S. Cl.
CPC ...
162158 ; 1621646 ; 1621681 ; 1621683 ; 162174 ; 162175 ; 549255 ;
Abstract
An internal sizing agent for paper making which produces excellent sizing effect and which can be used in neutral to alkaline regions without the ordinarily employed fixing agent such as aluminum sulfate. The sizing agent contains a specific reaction product and/or hydrogenation product of said reaction product, said reaction product being prepared by adding maleic anhydride to branched internal olefins having 14 to 36 carbon atoms which branched internal olefins are obtained by oligomerizing one member or a mixture of two or more of olefins having 6 to 18 carbon atoms.