Pneumatic radial tires for heavy vehicles

Details Pneumatic radial tires for heavy vehicles Pneumatic radial tires for heavy vehicles

1988-12-27

1990-01-30

Hoch, Raymond

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152451, 152557, B60C 902, D02G 348

Patent

active

048967106

ABSTRACT:
Pneumatic radial tires for load vehicles include carcass plies reinforced with composite twisted filaments having a core-sheath structure, the core being made of polyester and the sheath being made of polyamide. The sheath accounts for 40-60 wt % of the entire core-sheath structure, and the coefficient of twist K of the cords satisfies the condition 1.22<K<2.24 and the initial modulus Md (g/d) of the cords satisfies the condition Md>45.0.

REFERENCES:
patent: Re29382 (1977-09-01), Fontijn
patent: 3851692 (1974-12-01), Takemura et al.
patent: 4350006 (1982-09-01), Okamoto et al.

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