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. 08, 1977
Filed:
Apr. 28, 1975
Applicant:
Inventor:
Louis E Trapasso, Watchung, NJ (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536114 ; 536119 ;
Abstract
This invention provides novel guar gum formate esters having a degree of substitution between about 0.01 and 3.0, and further provides a process for producing guar gum formate esters by the interaction of guar gum powder or guar gum splits with concentrated formic acid. The invention process represents a general method for formylation of polygalactomannan gums. The polygalactomannan gum formate esters are useful as flocculants, and as sizing agents for paper and textiles.