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. 02, 1986
Filed:
Dec. 12, 1985
Peter T Trzasko, Plainsboro, NJ (US);
Martin M Tessler, Edison, NJ (US);
Teresa A Dirscherl, North Plainfield, NJ (US);
National Starch and Chemical Corporation, Bridgewater, NJ (US);
Abstract
Starch derivatives capable of forming reversible gels are provided. Aqueous dispersions or solutions of the derivatives form thermally reversible hot gels at temperatures above 70.degree. C. and a pH of 3-8, in addition to exhibiting substantial increases in viscosity upon cooling from 95.degree. to 70.degree. C. The starch derivative may be alkali gelatinized at a pH 13 or above and the gel formed at a pH of from 1-10. The gelling agents are starch ethers or starch esters having an amylose content of at least 17% by weight with the ether or ester substituent comprising a linear saturated or unsaturated hydrocarbon chain of at least 12 carbon atoms.