High purity, high temperature pipe thread sealant paste

Details High purity, high temperature pipe thread sealant paste High purity, high temperature pipe thread sealant paste

1990-11-02

1992-02-04

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Leak stopping

106285, 252 22, 252 29, 252510, 285 80, 285355, C09K 310, C09K 312, H01B 106, F16L 3318

Patent

active

050857002

ABSTRACT:
A pipe thread sealant paste composition comprising from about 30 to about 80 percent by weight of natural flake graphite particles of a size sufficient to pass through a 100 Tyler mesh sieve and a liquid carrier comprising a mixture of mineral oil and petrolatum, the paste composition preferably having a total ash content of no greater than about 1 percent by weight and containing leachable chlorides in amounts equal to or less than about 50 parts per million. The invention also relates to a method for preparing and applying the pipe thread sealant paste to pipe joints.

REFERENCES:
patent: 1594810 (1926-08-01), Benner
patent: 1636976 (1927-07-01), Adler
patent: 2270199 (1942-01-01), Thrune
patent: 3242075 (1966-03-01), Hunter
patent: 3404061 (1968-10-01), Shane et al.
patent: 3928214 (1975-12-01), Naka et al.
patent: 4162078 (1979-07-01), Cox
patent: 4505847 (1985-03-01), Jackson
patent: 4585578 (1986-04-01), Yonahara et al.
patent: 4872914 (1989-10-01), Howard

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