Thermally reversible dental astringent gels

Details Thermally reversible dental astringent gels Thermally reversible dental astringent gels

1979-09-04

1981-04-07

Robinson, Douglas W.

Drug, bio-affecting and body treating compositions

Dentifrices

424 78, 424154, 424317, 424343, A61K 716, A61K 3174, A61K 3306, A61K 3119

Patent

active

042605970

ABSTRACT:
Thermally reversible dental astringent gels are prepared by admixing and heating a fluid system containing substantially completely hydrolyzed polyvinyl alcohol of moderate molecular weight and moderate solution viscosity, polyhydroxy aromatic gelling agent such as gallic acid, aluminum chloride hydrate and water until a sample thereof, upon cooling, forms a solid, tack-free, elastomeric, thermally reversible gel.

REFERENCES:
patent: 2249538 (1941-07-01), McDowell et al.
patent: 2408377 (1946-10-01), Dangelmajer
patent: 2607658 (1952-08-01), Govett et al.
patent: 3772431 (1973-11-01), Mlkvy et al.
patent: 3856941 (1974-12-01), Turner
Remington's Pharm. Sci., 15 ed., (1975), 716-717.
Chem. Abst. 84, 65190(r), (1976), Turner.
Chem. Abst. 77, 52,375(k), (1972), Driessens.

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