Dental care compositions

• US 6,685,921 B2
• Filed: 04/25/2003
• Issued: 02/03/2004
• Est. Priority Date: 10/25/2000
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Lawlor, Thomas Mark
• Primary Examiner(s): Rose, Shep K.
• Application Number:
  US10/424,640
• Publication Number:
  US 20030198604A1
• Time in Patent Office: 284 Days
• Field of Search: 424/49-58, 523/116, 523/118, 433/228.1
• US Class Current: 424/49
• CPC Class Codes: A61K 2800/594 Mixtures of polymers
• CPC Class Codes: A61K 6/20 Protective coatings for natural or artificial teeth, e.g. sealings, dye coatings or varnish
• CPC Class Codes: A61K 6/69 Medicaments
• CPC Class Codes: A61K 8/347 Phenols
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61Q 11/00 Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
• CPC Class Codes: C08L 83/10 Block- or graft-copolymers containing polysiloxane sequences obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C08L51/08, C08L53/00

Abstract

Disclosed are non volatile oral care compositions that comprise:

i) from about 0.5% to about 60%, by weight, of a silicone resin;

ii) from about 0.1% to about 30%, by weight, of a silicone gum;

iii) from about 0.1% to about 95%, by weight, of a non volatile polysiloxane fluid which has a viscosity from about 1 cStk to about 1000 cStk; and

iv) from about 0.01% to about 50%, by weight, of an oral care active selected from teeth color modifying substances, anti-tartar agents, anti-plaque agents, fluoride ion sources, anti-microbial agents, nutrients, antioxidants, H-2 antagonists, analgesics, anti-viral agents, mucosally absorbed pharmacological agents and mixtures thereof.

A second aspect of the present invention relates to the use of non volatile oral care silicone compositions in the oral cavity to treat the hard and soft tissue surfaces wherein the composition comprises:

(i) from about 0.5% to about 60%, by weight, of a silicone resin;

(ii) from about 0.1% to about 30%, by weight of a silicone gum;

(iii) from about 0.1% to about 95%, by weight, of a non volatile polysiloxane fluid which has a viscosity from about 1 cStk to about 1000 cStk.

Compositions of the present invention are useful for providing a substantive composition on the surfaces of the oral cavity which can provide prophylactic, therapeutic or cosmetic benefits.

Claims

1. A non volatile composition that comprises:

i) from about 0.5% to about 60%, by weight, of a silicone resin;

ii) from about 0.1% to about 30% by weight, of a silicone gum;

iii) from about 0.1% to about 95%, by weight, of a non volatile polysiloxane fluid which has a viscosity from about 1 cStk to about 1000 cStk; and

iv) from about 0.01% to about 50%, by weight, of an oral care active selected from the group consisting of teeth color modifying substances, anti-tartar agents, anti-plaque agents, fluoride ion sources, anti-microbial agents, nutrients, antioxidants, H-2 antagonists, analgesics, anti-viral agents, mucosally absorbed pharmacological agents and mixtures thereof.

2. A composition according to claim 1 wherein the silicone resin is selected from MQ resins with an M:

Q ratio of from about 0.4;

1 to about 0.8;

1.

3. A composition according to claim 1 which comprises from about 2% to about 50%, of silicone resin.

4. A composition according to claim 1 which comprises from about 1% to about 20%, by weight, silicone gum.

5. A composition according to claim 1 wherein the polysiloxane fluid has a viscosity from about 2 cStk to about 500 cStk.

6. A composition according to claim 1 which comprises from about 5% to about 90%, by weight, polysiloxane fluid.

7. A composition according to claim 6 wherein the polysiloxane fluid is a polydimethylsiloxane fluid.

8. A composition according to claim 1 wherein the weight ratio between the silicone resin and the silicone gum is in the range from about 0.1:

1 to about 9;

1.

9. A composition according to claim 1 wherein the weight ratio between the polysiloxane fluid and the high molecular weight silicone gum is in the range from about 0.1:

1 to about 20;

1.

10. A composition according to claim 1 wherein the oral care active is selected the group consisting of teeth colour modifying substances, anti-tartar agents, anti-plaque agents, fluoride ion sources, anti-microbial agents and mixtures thereof.

11. A composition according to claim 10 wherein the oral care active is selected from the group consisting of peroxides, polyphosphates, xylitol, triclosan, stannous fluoride, soluble zinc salts, potassium nitrate and mixtures thereof.

12. A composition according to claim 1 which comprises from about 0.01% to about 20%, by weight, of an oral care active.

13. A composition according to claim 1 wherein the composition is a water in silicone emulsion and wherein the emulsion comprises from about 5% to about 95%, by weight, of the composition.

14. A composition according to claim 13 wherein the internal aqueous phase comprises rheology modifiers selected from the group consisting of cellulose polymers, xanthan gum, carbomers, inorganic clay polymers, polycarboxylates, EO/PO block copolymers (poloxamers), thickening silicas and mixtures thereof.

15. A composition according to claim 13 which comprises from about 0.001% to about 90%, by weight, of water.

16. A method of treating hard and soft tissue surfaces of a subject'"'"'s oral cavity with a nonvolatile oral care composition comprising:

i) from about 0.5% to about 60%, by weight, of a silicone resin;

ii) from about 0.1% to about 30%, by weight of a silicone gum;

iii) from about 0.1% to about 95%, by weight, of a non volatile polysiloxane fluid which has a viscosity from about 1 cStk to about 1000 cStk.

17. A method according to claim 16 wherein the nonvolatile oral care composition also comprises an oral care active selected from the group consisting of teeth color modifying substances, anti-tartar agents, anti-plaque agents, fluoride ion sources, anti-microbial agents, nutrients, antioxidants, H-2 antagonists, analgesics, anti-viral agents, mucosally absorbed pharmacological agents and mixtures thereof.