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US 5,700,449 AGranted
Dentifrice composition
AssigneeKao Corporation
InventorsYasushi Katayama, Kouji Maeda, Ryozo Nakai, Yoshiyuki Muroi, Takao Okajima
Life of this patent
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Abstract
The dentifrice composition includes capsule particles containing agar as a main component of a coat-forming substance and having an average particle size of from 0.3 to 3 mm, and vehicles for use in oral cavity. It may further contain nonionic surfactants and/or water-insoluble abrasive granules as desired.
Claims23
A capsule, comprising:
- (i) a coating comprising agar;
- and
- (ii) a dentifrice ingredient, encapsulated by said coating,
- wherein said capsule has an average size of from 0.3 to 3 mm.
1 more element
A dentifrice composition, comprising:
- (a) 0.1 to 10% by weight of capsules, comprising:
- (i) a coating comprising agar, and
- (ii) a dentifrice ingredient, encapsulated by said coating,
- wherein said capsules have an average size of from 0.3 to 3 mm and are easily broken upon brushing teeth;
- and
- (b) a dentifrice vehicle, comprising:
- (i) 1 to 40% by weight of at least one surfactant, and
- (ii) 1 to 75% by weight of water-insoluble abrasives,
- wherein said abrasives break said capsules upon brushing teeth.
6 more elements
Dependencies are inferred from the claim text.