Breath freshening film

• US 6,419,903 B1
• Filed: 08/20/2001
• Issued: 07/16/2002
• Est. Priority Date: 08/20/2001
• Status: Expired due to Term

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Blackwell, Bernie L., Xu, Goufeng, Reci, Mel, Viscio, David B., Robinson, Richard S., Curtis, John P.
• Primary Examiner(s): Rose, Shep K.
• Application Number:
  US09/933,095
• Time in Patent Office: 330 Days
• Field of Search: 424/47-58, 424/401, 424/435, 424/49
• US Class Current: 424/49
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61K 8/731 Cellulose; Quaternized cellulose derivatives
• CPC Class Codes: A61K 8/732 Starch; Amylose; Amylopectin; Derivatives thereof
• CPC Class Codes: A61P 1/02 Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
• 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

Abstract

A rapidly dissolvable orally consumable film composition for delivering breath freshening agents to the oral cavity wherein the composition is formed from a homogeneous mixture of a water soluble, low viscosity hydroxyalkylmethyl cellulose and a water dispersible starch and a flavoring agent.

Claims

1. An orally consumable film composition for delivering breath freshening agents to the oral cavity which is rapidly dissolvable in the oral cavity, the composition being comprised of a homogeneous mixture of (1) a water soluble, low viscosity hydroxyalkylmethyl cellulose, the viscosity being in the range of 1 to about 40 mPa·

s as determined as a 2% by weight aqueous solution at 20°

C. using a Ubbelohde tube viscometer, (2) a water dispersible pregelatized starch, and (3) a flavoring agent.

2. The film composition of claim 1 wherein the hydroxyalkyl methyl cellulose is hydroxypropyl methyl cellulose.

3. The film composition of claim 1 wherein the viscosity of the hydroxyalkyl methyl cellulose is in the range of about 3 to about 30 mPa·

s.

4. The film composition of claim 1 wherein the hydroxyalkyl methyl cellulose is present at a concentration of about 10 to about 60% by weight.

5. The film composition of claim 1 wherein the starch is present in the film in an amount ranging from about 5 to about 50% by weight.

6. The film composition of claim 1 wherein the weight ratio of hydroxyalkyl methyl cellulose to starch is in the range of about 1:

3 to about 4;

1.

7. The film composition of claim 1 wherein the weight ratio of hydroxyalkyl methyl cellulose to starch is in the range of about 1:

1.5 to about 2;

5.1.

8. A method for delivering a breath freshening agent to the oral cavity which comprises preparing an orally consumable film composition which is rapidly dissolvable in the oral cavity, the composition being comprised of (1) a homogeneous mixture of a water soluble, low viscosity hydroxyalkylmethyl cellulose, the viscosity being in the range of 1 to about 40 mPa·

s as determined as a 2% by weight aqueous solution at 20°

C. using a Ubbelohole tube viscometer, (2) a water dispersible starch, and (3) a flavoring agent.

9. The method of claim 8 wherein the hydroxyalkyl methyl cellulose is hydroxypropyl methyl cellulose.

10. The method of claim 8 wherein the viscosity of the hydroxyalkyl methyl cellulose is in the range of about 3 to about 30 mPa·

s.

11. The method of claim 8 wherein the hydroxyalkyl methyl cellulose is present at a concentration of about 10 to about 60% by weight.

12. The method of claim 8 wherein the starch is present in the film in an amount ranging from about 5 to about 50% by weight.

13. The method of claim 8 wherein the weight ration of hydroxyalkyl methyl cellulose to starch is in the range of about 1:

3 to about 4;

1.

14. The method of claim 8 wherein the weight ratio of hydroxyalkyl methyl cellulose to starch is in the range of about 1:

1.5 to abut 2;

5.1.