Composition for sealing sliding contact section

Details Composition for sealing sliding contact section Composition for sealing sliding contact section

1985-02-28

1986-04-01

Morris, Theodore

Dispensing

With discharge assistant

Container with follower

106203, 106162, B67D 542, C08L 100

Patent

active

045792593

ABSTRACT:
A sealing composition which stops the leakage of a liquefied or compressed gas through a sliding contact section, includes 1 part of a hydrophilic organic polymer and 5-200 parts of a polyol. Usable hydrophilic organic polymers are synthetic and natural polymers including polysaccharides and their derivatives, which have average molecular weights of 10,000-10,000,000. Preferable is pullulan or elsinan which substantially consists of repeating maltotriose units. Any polyols are usable in the invention whether they are in non-crystalline or crystalline form, provided that they bear 2-20 carbon atoms and hydroxyl groups. The present composition may be further admixed with water and/or nonionic or anionic surface-active agent in an appropriate amount to facilitate the preparation of the composition and to regulate the viscosity of the composition.

REFERENCES:
patent: 1990274 (1935-02-01), Edelman
patent: 2594498 (1952-04-01), Rohn
patent: 3009893 (1961-11-01), Barns
patent: 3132570 (1964-05-01), Hoffman
patent: 3255936 (1966-06-01), Healy et al.
patent: 3398007 (1968-08-01), Pillersdorf et al.
patent: 3485651 (1969-12-01), Ganz
patent: 3784390 (1974-01-01), Hijiya
patent: 3870537 (1975-03-01), Hijiya
patent: 4128507 (1978-12-01), Mitzner
patent: 4141748 (1979-02-01), Matsunaga
patent: 4235637 (1980-11-01), Singleton

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