Rubber composition for geothermal application

Details Rubber composition for geothermal application Rubber composition for geothermal application

1985-03-07

1986-03-11

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524496, 524530, 524581, C08K 304, C08K 513, C08J 324

Patent

active

045755221

ABSTRACT:
A composition for use in geothermal or high temperature and steam applications of ethylene-propylene copolymer with peroxide generated carbon to carbon crosslinkage. Effective amounts of antioxidants, carbon black, lubricant, thermal stabilizer and aid to peroxide crosslinkage is added. An antioxidant and thermal stabilizer system is used to produce a product with unusual thermal stability characteristics. The composition also has a mixture of high and low particle size carbon black which act as an antioxidant and reinforcing system. The composition can be used for rubber components in geothermal drilling for pipe protectors, valve seals and other products which are exposed to a high temperature and steam saturated environment.

REFERENCES:
patent: 3243405 (1966-03-01), Boyer et al.
patent: 3305517 (1967-02-01), Kehr
patent: 3931097 (1976-01-01), Fujio et al.
patent: 4526707 (1985-07-01), Kutsuwa et al.

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