Rubber composition for coating tire cord
US4535119A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1984 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | May 4, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rubber composition for coating a tire cord comprising: PA0 (A) a reinforced rubber composition comprising vulcanizable rubber including 5 to 100 parts by weight, based on 100 parts by weight of the rubber, of fine short fibers of thermoplastic polymer having ##STR1## group buried therein, said vulcanizable rubber and said thermoplastic polymer being grafted to the vulcanizable rubber through a phenol formaldehyde resin precondensate at an interface of the fiber; PA0 (B) a diene rubber; and PA0 (C) carbon black, wherein the following conditions (i) to (iv) are satisfied: PA1 (i) the amount of the thermoplastic rubber is 1 to 15 parts by weight based on 100 parts by weight of the total amount of the rubber constituents; PA1 (ii) the ratio of the rubber is such that the total amount of natural rubber or polyisoprene in the component (A) and the component (B) is 100% to 65% by weight; PA1 (iii) the amount of the carbon black is 50 to 70 parts by weight based on 100 parts by weight of the total amount of the rubber constituents; and PA1 (iv) the vulcanizate derived from the rubber composition has a 100% modulus of at least 60 kg/cm.sup.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.