Claims
- 1. A stabilized rubber composition comprising a rubbery elastomer and a sufficient amount of carnosic acid to stabilize the rubber composition, wherein said stabilized rubber composition is void of a water soluble portion.
- 2. A stabilized rubber composition as specified in claim 1 wherein said stabilized rubber composition is void of sweeteners.
- 3. A stabilized rubber composition as specified in claim 1 wherein said stabilized rubber composition is void of flavoring agents.
- 4. A stabilized rubber composition as specified in claim 1 wherein said stabilized rubber composition is void of colorants.
- 5. A stabilized rubber composition as specified in claim 1 wherein the carnosic acid is present at a level which is within the range of about 0.0001 phr to about 1 phr.
- 6. A stabilized rubber composition as specified in claim 5 wherein said stabilized rubber composition is further comprised of an additional antioxidant selected from the group consisting of carnosol, rosmanol and rosmaridiphenol.
- 7. A stabilized rubber composition as specified in claim 1 wherein the carnosic acid is present at a level which is within the range of about 0.0005 phr to about 0.1 phr.
- 8. A stabilized rubber composition as specified in claim 1 wherein the carnosic acid is present at a level which is within the range of about 0.001 phr to about 0.05 phr.
- 9. A stabilized rubber composition as specified in claim 1 wherein the carnosic acid is present at a level which is within the range of about 0.01 phr to about 0.03 phr.
- 10. A stabilized rubber composition as specified in claim 1 wherein said stabilized rubber composition is void of humectants.
- 11. A stabilized rubber composition comprising: (1) a rubbery elastomer, (2) carbon black, and (3) a sufficient amount of carnosic acid to stabilize the rubber composition.
- 12. A stabilized rubber composition as specified in claim 11 wherein the carnosic acid is present at a level which is within the range of about 0.0001 phr to about 1 phr.
- 13. A stabilized rubber composition as specified in claim 12 wherein the carbon black is present at a level which is within the range of about 10 phr to about 100 phr.
- 14. A stabilized rubber composition as specified in claim 12 wherein the carbon black is present at a level which is within the range of about 20 phr to about 80 phr.
- 15. A stabilized rubber composition as specified in claim 11 wherein the carnosic acid is present at a level which is within the range of about 0.0005 phr to about 0.1 phr.
- 16. A stabilized rubber composition as specified in claim 11 wherein the carnosic acid is present at a level which is within the range of about 0.001 phr to about 0.05 phr.
- 17. A stabilized rubber composition as specified in claim 11 wherein the carnosic acid is present at a level which is within the range of about 0.01 phr to about 0.03 phr.
- 18. A stabilized rubber composition as specified in claim 11 wherein the carbon black is present at a level which is within the range of about 5 phr to about 150 phr.
- 19. A stabilized rubber composition comprising: (1) a rubbery elastomer, (2) silica, and (3) a sufficient amount of carnosic acid to stabilize the rubber composition.
Parent Case Info
This is a continuation-in-part of U.S. patent application Ser. No. 09/658,092, filed on Sep. 8, 2000, now U.S. Pat. No. 6,231,896.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5567450 |
Zuromski et al. |
Oct 1996 |
A |
5879728 |
Graff et al. |
Mar 1999 |
A |
Foreign Referenced Citations (2)
Number |
Date |
Country |
59-103665 |
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JP |
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Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09/658092 |
Sep 2000 |
US |
Child |
09/798734 |
|
US |