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Primary Examiner: Gotts, Lewis
Assistant Examiner: Owens, Cary
Attorney:

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Title: Polygalactomannan gum formate esters

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.

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Inventors: Trapasso, Louis E. (Watchung, NJ, US)

Application Number: 572049
Filing Date: 1975-04-28
Publication_date: 1977-03-08
Assignee: Celanese Corporation (New York, NY)
Primary Class(es): 536/114 536/119
Other Classes:
US Patent Ref:

3580841

May, 1971

Cadotte et al.

210/23.

Other Refs: Other References: Fieser et al., "Reagents for Organic Chem. (Synthesis)", Wiley and Sons, Inc., New York, 1967, p. 404.