초록 ▼

A sealant composition particularly suitable for vehicle tires comprising a cured butyl rubber present only in the form of a copolymer having a molecular weight in excess of 100,000 and one or more tackifiers, the tensile strength, elongation and cross-link density of the composition being adjusted t

A sealant composition particularly suitable for vehicle tires comprising a cured butyl rubber present only in the form of a copolymer having a molecular weight in excess of 100,000 and one or more tackifiers, the tensile strength, elongation and cross-link density of the composition being adjusted to produce the necessary properties for tire sealants.

대표청구항 ▼

A butyl rubber based sealant composition, the butyl rubber constituent of which is present only in the form of a copolymer having a viscosity average molecular weight in excess of 100,000, comprising the reaction product of said butyl rubber, a curing system including a cross-linking agent selected

A butyl rubber based sealant composition, the butyl rubber constituent of which is present only in the form of a copolymer having a viscosity average molecular weight in excess of 100,000, comprising the reaction product of said butyl rubber, a curing system including a cross-linking agent selected from the group consisting of at least 2 parts by weight of a quinoid cross-linking agent per hundred parts butyl rubber and at least 5 parts by weight of a phenolic cross-linking agent per hundred parts butyl rubber, and at least one tackifier compatible with butyl rubber, and a filler material, the composition being compounded such that it has a tensile strength of at least 30 psi, an elongation of at least 600% and a cross-link density such that its swell ratio in toluene is between 12 and 40.