Base for oral composition and the oral composition

Details Base for oral composition and the oral composition Base for oral composition and the oral composition

2005-05-09

2008-07-01

Krass, Frederick (Department: 1612)

Drug, bio-affecting and body treating compositions

Dentifrices

C424S053000, C514S835000

Reexamination Certificate

active

07393519

ABSTRACT:
A non-aqueous toothpaste comprises ascorbic acid or a salt thereof, mixed in a base which is a combination of hydroxypropyl cellulose and 1,3-butylene glycol which is thereby essentially water-free thereby stabilizing the ascorbic acid or a salt thereof.

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Machine translation of Japanese Patent Publication 2002-114656 (publication date Apr. 16, 2002).
Jashawant J. Modi, et al., “Klucel® hydroxypropylcellulose for thickening anhydrous or low-water content (10% or less) systems”, Research Disclosure, Mason Publications, vol. 475, No. 113, XP-007133161, Nov. 2003, 1 page.

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