26-09-2019 дата публикации
Номер: US20190291511A1
Принадлежит:
Processes for producing a sealant layer-tire inner liner combination as well as a sealant layer-containing tire and related processes involving the sealant layer-containing tire are disclosed. The sealant layer is adhered to the tire inner liner, has a thickness of 2-8 mm and comprises 100 parts of at least one rubber, 90-500 phr of at least one tackifier, optionally one or more extenders, optionally at least one hydroscopic substance, and a cure package. 119-. (canceled)20. A process for producing a sealant layer-tire inner liner combination comprising:a. providing a tire inner liner, wherein the inner liner includes a radially inward facing surface and a radially outward facing surface, i. 100 parts of at least one rubber selected from the group consisting of butyl rubber (optionally halogenated), natural rubber, polyisoprene, polybutadiene rubber, styrene-butadiene rubber, styrene-butadiene-isoprene rubber, isoprene-butadiene rubber, polychloroprene rubber, EPDM, nitrile rubber, polyisobutylene, and combinations thereof;', 'ii. 90-500 phr of at least one tackifier;', 'iii. optionally one or more extenders in a total amount of no more than 55 phr;', 'iv. optionally at least one hydroscopic substance in an amount of 0.5 to 10 phr; and', 'v. a cure package; and, 'b. providing a sealant layer having an upper surface, a lower surface, and a thickness of 2-8 mm, and comprising a mixture of'} i. to the radially inward facing surface of the inner liner so that the lower surface of the sealant layer faces radially outward, or', 'ii. to the radially outward facing surface of the inner liner so that the lower surface of the sealant layer faces radially outward,, 'c. adhering the sealant layer eitherthereby producing a sealant layer-tire inner liner combination.21. The process of claim 20 , wherein at least 60 parts of the 100 parts of rubber comprise butyl rubber claim 20 , halogenated butyl rubber claim 20 , EPDM claim 20 , or a combination thereof claim 20 , and up to 200 ...
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