IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0805575
(2010-08-06)
|
등록번호 |
US-8362110
(2013-01-29)
|
우선권정보 |
DE-10 2008 007 992 (2008-02-07) |
발명자
/ 주소 |
- Schunack, Michael
- Recker, Carla
- Conde, Mario
|
출원인 / 주소 |
- Continental Reifen Deutschland GmbH
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
A sealant, in particular for rubber articles, preferably for motor vehicle tires, comprises: 30-90 wt-% of at least one natural rubber latex dispersion; 0.1-10 wt-% of at least one ionic and/or non-ionic emulsifier and/or dispersing agent; 0.0001-10 wt-% of at least one protease; 5-40 wt-% of at lea
A sealant, in particular for rubber articles, preferably for motor vehicle tires, comprises: 30-90 wt-% of at least one natural rubber latex dispersion; 0.1-10 wt-% of at least one ionic and/or non-ionic emulsifier and/or dispersing agent; 0.0001-10 wt-% of at least one protease; 5-40 wt-% of at least one aqueous adhesive resin dispersion; 1-50 wt-% of at least one antifreeze agent; 0.01-12 wt-% of decomposition products of a deproteinizing reaction; 0-30 wt-% of additional additives.
대표청구항
▼
1. A sealant for rubber articles, comprising: from 30 to 90% by weight of at least one natural rubber latex dispersion;from 0.1 to 10% by weight of at least one ionic and/or nonionic emulsifying and/or dispersing agent;from 0.01 to 10% by weight of at least one protease;from 5 to 40% by weight of at
1. A sealant for rubber articles, comprising: from 30 to 90% by weight of at least one natural rubber latex dispersion;from 0.1 to 10% by weight of at least one ionic and/or nonionic emulsifying and/or dispersing agent;from 0.01 to 10% by weight of at least one protease;from 5 to 40% by weight of at least one aqueous adhesive resin dispersion;from 1 to 50% by weight of at least one antifreeze;from 0.01 to 12% by weight of degradation products of a deproteination reaction;from 0 to 30% by weight of further additives,wherein the at least one aqueous adhesive resin dispersion is a rosin ester based resin. 2. The sealant as claimed in claim 1, comprising from 30 to 80% by weight of the at least one natural rubber latex dispersion. 3. The sealant as claimed in claim 1, comprising from 30 to 70% by weight of the at least one natural rubber latex dispersion. 4. The sealant as claimed in claim 1, comprising from 0.5 to 8% by weight of the at least one ionic and/or nonionic emulsifying and/or dispersing agent. 5. The sealant as claimed in claim 4, comprising from 0.5 to 5% by weight of the at least one ionic and/or nonionic emulsifying and/or dispersing agent. 6. The sealant as claimed in claim 1, wherein the at least one ionic emulsifying and/or dispersing agent is an ionic surfactant. 7. The sealant as claimed in claim 6, wherein the ionic surfactant is an anionic surfactant. 8. The sealant as claimed in claim 7, wherein the anionic surfactant is selected from the group consisting of: a carboxylic acid surfactant, a sulfonic acid surfactant, a sulfate surfactant, and a phosphate surfactant, or a mixture thereof. 9. The sealant as claimed in claim 1, wherein the at least one nonionic emulsifying and/or dispersing agent is a nonionic surfactant. 10. The sealant as claimed in claim 9, wherein the nonionic surfactant is selected from the group consisting of: a polyoxyalkylene ether surfactant, a polyfunctional alcohol-fatty-acid-ester surfactant, a sugar-fatty-acid-ester surfactant, an alkyl polyglycoside surfactant, and a polyoxyalkyl-polyfunctional-alcohol-ether surfactant, or a mixture thereof. 11. The sealant as claimed in claim 1, comprising from 0.1 to 10% by weight of the at least one protease. 12. The sealant as claimed in claim 1, comprising from 0.1 to 8% by weight of the at least one protease. 13. The sealant as claimed in claim 1, comprising from 0.1 to 5% by weight of the at least one protease. 14. The sealant as claimed in claim 1, wherein the at least one protease is selected from the group consisting of alkalase, esperase, savinase, liquanase, or a mixture thereof. 15. The sealant as claimed in claim 14, wherein the at least one protease is alkalase. 16. The sealant as claimed in claim 1, comprising from 5 to 30% by weight of the at least one aqueous adhesive resin dispersion. 17. The sealant as claimed in claim 16, comprising from 10 to 30% by weight of the at least one aqueous adhesive resin dispersion. 18. The sealant as claimed in claim 1, comprising from 1 to 40% by weight of the at least one antifreeze. 19. The sealant as claimed in claim 1, wherein the at least one antifreeze is selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, diethylene glycol monomethyl ether, propylene glycol, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol, propylene glycol monopropyl ether, ethanol, and isopropanol, or a mixture thereof. 20. The sealant as claimed in claim 19, wherein the at least one antifreeze is selected from the group consisting of: ethylene glycol, diethylene glycol, triethylene glycol, and propylene glycol, or a mixture thereof. 21. The sealant as claimed in claim 19, wherein the at least one antifreeze is ethylene glycol. 22. The sealant as claimed in claim 1, comprising from 0.1 to 12% by weight of the degradation products of a deproteination reaction. 23. The sealant as claimed in claim 1, wherein the degradation products of the deproteination reaction are amino acids, oligomers of amino acids, or a mixture thereof. 24. The sealant as claimed in claim 1, comprising from 0 to 20% by weight of the further additives. 25. The sealant as claimed in claim 1, comprising at least 0.01% by weight of the further additives. 26. The sealant as claimed in claim 25, comprising at least 0.1% by weight of the further additives. 27. The sealant as claimed in claim 24, wherein the further additives comprise one or more antioxidants. 28. A process for producing a sealant as claimed in claim 1, wherein the individual components are combined in a mixing vessel in a chronologically defined sequence. 29. The process for producing a sealant as claimed in claim 28, wherein the at least one natural rubber latex dispersion and the at least one ionic and/or nonionic emulsifying and/or dispersing agent are first combined in a mixing vessel, and then a protease is added, where the degradation products of a deproteination reaction are produced and remain in the mixing vessel, and then the at least one aqueous adhesive resin dispersion, the at least one antifreeze, and the further additives are added to the mixing vessel. 30. A method for sealing of a site of damage in a rubber article, comprising applying the sealant as claimed in claim 1 to the rubber article. 31. The method as claimed in claim 30, for sealing of a site of damage in a hollow rubber article. 32. The method as claimed in claim 31, for sealing of a site of damage in a hollow rubber article filled with a gas. 33. The method as claimed in claim 30, for sealing of a site of damage in a tire. 34. The method as claimed in claim 33, for sealing of a site of damage in a tire, where, after the sealant has been introduced into the tire, the sealant is distributed on the inner wall of the tire via rotation of the wheel, and the sealant penetrates into and/or is distributed over the site of damage or site of puncture, and seals the same, thus preventing any further escape of a gas from the tire.
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