Tire innerliner comprising ester-functionalized elastomeric inte

Details Tire innerliner comprising ester-functionalized elastomeric inte Tire innerliner comprising ester-functionalized elastomeric inte

1995-06-07

1997-05-20

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524495, 524525, 524578, 525193, 525232, 525233, 5253333, 5253335, 525372, 525912, 522149, 156123, 1562733, 1562755, 1563071, 152450, 152510, C08L 2516, C08K 304

Patent

active

056313160

ABSTRACT:
Vulcanizable tire innerliner compositions are described which are essentially free of halogen atoms or contain a reduced halogen content. The innerliners contain a saturated elastomeric interpolymer of a C.sub.4 -C.sub.7 isomonoolefin, e.g., isobutylene and a para-alkylstyrene e.g., para-methylstyrene, which contains benzylic ester functionality having the structure: ##STR1## wherein R.sub.2 and R.sub.3 are independently selected from hydrogen or C.sub.1 to C.sub.6 alkyl, and R.sub.4 is selected from hydrogen, C.sub.1, to C.sub.28 alkyl, aryl or C.sub.2 to C.sub.28 alkenyl.
Innerliners of the invention provide excellent impermeability to air, heat aging properties and good adhesion to tire carcass stock required for tire innerliners, and are also essentially free of halogen or contain low halogen content thereby reducing environmental concerns occasioned by the incineration of used tires.

REFERENCES:
patent: 2943664 (1960-07-01), Baldwin et al.
patent: 5162445 (1992-11-01), Powers et al.
patent: 5376503 (1994-12-01), Audett et al.
patent: 5473017 (1995-12-01), Wang
Kruse et al, "Industrial Rubber Applications Development . . . ", ACS Rubber Div. Meeting Nov. 3, 1992.
Fusco et al, "Butyl and Halobutyl Rubbers", Rubber Technology, Van Nostrand Reinhold, N.Y., 316-318 (1987).

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