Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Patent
1985-12-12
1986-12-02
Griffin, Ronald W.
Compositions: coating or plastic
Coating or plastic compositions
Carbohydrate or derivative containing
106211, 106212, 106213, C08L 306, C08L 308, C08L 310
Patent
active
046262881
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.
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Chemical Abstract Vol. 87, 1977 No. 119635x (JP-A-76-123784).
Dirscherl Teresa A.
Tessler Martin M.
Trzasko Peter T.
Griffin Ronald W.
National Starch and Chemical Corporation
Szala Edwin M.
Tolly Lori D.
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