Oral care compositions
In accordance with this invention, there is provided an oral care composition comprising a multimodal blend of copolymers of maleic acid or maleic anhydride and an alkyl vinyl ether and a non-cationic antibacterial agent. The compositions feature improved retention of the antibacterial agent on teeth.
1. An oral care composition comprising:
(a) a multimodal blend of copolymers of maleic acid or maleic anhydride and an alkyl vinyl ether; and
(b) a non-cationic antibacterial agent.
2. The oral care composition of claim 1 wherein said multimodal blend is a bimodal blend.
3. The oral care composition of claim 2 wherein said bimodal blend of copolymers have specific viscosities in the ranges of 2-10 and 0.1-2 respectively.
4. The oral care composition of claim 3 wherein said bimodal blend of copolymers have specific viscosities in the ranges of 2-6 and 0.1-1.75 respectively.
5. The oral care composition of claim 4 wherein said bimodal blend of copolymers have specific viscosities in the ranges of 2-4 and 0.1-1.5 respectively.
6. The oral care composition of claim 1 wherein said non-cationic antibacterial agent is triclosan.
7. The oral care composition of claim 1 wherein said alkyl vinyl ether is methyl vinyl ether.
8. The oral care composition of claim 2 wherein said copolymers are present in a weight ratio of 10:90 to 90:10.
9. The oral care composition of claim 8 wherein said copolymers are present in a weight ratio of 20:80 to 80:20.
10. The oral care composition of claim 8 wherein said copolymers are present in a weight ratio of 20:80 to 80:20.
11. An oral care composition comprising
(a) a bimodal blend of copolymers of maleic acid or maleic anhydride and an alkyl vinyl ether, said copolymers having specific viscosities in the ranges of 2-10 and 0.1-2 respectively and being present in a weight ratio of 10:90 to 90:10; and
(b) a non-cationic antibacterial agent wherein said composition exhibits improved retention of said agent on teeth.
12. A method of improving retention of a non-cationic antibacterial agent on teeth, said method comprising delivering said non-cationic antibacterial agent to said teeth in combination with a multimodal blend of copolymers of maleic acid or maleic anhydride and an alkyl vinyl ether.