The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 1986
Filed:
Feb. 28, 1985
Katsumi Hirao, Osaka, JP;
Toshio Miyake, Okayama, JP;
K.K. Hayashibara Seibutsu Kagaku Yufo, Tokyo, JP;
Kanpe Katei Toriyoo K.K., Tokyo, JP;
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.