Slide surface compound for track-driven vehicle

Details Slide surface compound for track-driven vehicle Slide surface compound for track-driven vehicle

1978-07-20

1981-07-21

Schofer, Joseph L.

Wheel substitutes for land vehicles

With interposed friction drive belt

260 291SB, C08J 320, C08K 330, C08K 554

Patent

active

042794498

ABSTRACT:
A flexible endless belt track for a track-driven vehicle, said belt track having an outer ground-contacting surface to provide traction and an opposite inner surface which is adapted for moving contact with rigid elements of the vehicle drive means and the belt track supporting means, said inner surface including at least one surface portion of elastomeric material comprised of at least one vulcanized rubbery composition, said rubbery composition comprised of (A) from about 10 to about 35 parts of at least one polybutadiene polymer having a total 1,4 content of from about 80% to 100%, a cis 1,4 content of at least 10% and a combined cis 1,4 plus 1,2 content of at least 30% and (B) from about 65 to about 95 parts of two different rubbery polymer, said parts being by weight per 100 parts of (A) plus (B) and 10 to 35 parts of molybdenum disulfide and 3 to 7 parts of a mercaptosilicone or a mercaptosilane, said surface portion being adapted to come into direct moving contact with said rigid elements.

REFERENCES:
patent: 3781067 (1973-12-01), Dodson et al.
patent: 4003843 (1977-01-01), Kempermann et al.
patent: 4044037 (1977-08-01), Mui et al.
G. G. Smith, et al., Rubber Chemistry & Technology, vol. 49, pp. 140-149.

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