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:
Oct. 25, 1994
Filed:
Aug. 04, 1993
Toshio Takago, Annaka, JP;
Kouichi Yamaguchi, Takasaki, JP;
Shinichi Sato, Annaka, JP;
Takashi Matsuda, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A room temperature curable polyether composition, comprising a polyether compound of which at least one terminal has a group, represented by the general formula (1): ##STR1## wherein R.sup.1 is an alkyl group or an aryl group, R.sup.2 is a hydrogen atom or a monovalent organic group, R.sup.3 is a divalent organic group, X is a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxyl group, an alkenyloxy group, an acyloxy group, a ketoximate group, an amido group, an aminoxy group or a mercapto group and a is an integer of 0 to 2, and of which main chain comprises a fluorine-containing polyether chain, represented by the general formula (2): ##STR2## wherein R.sub.f is a perfluoro group, R.sup.4 is a divalent organic group, m is an integer of 4 or more and n is an integer of 0 or more. The cured product thereof is excellent in rubber properties and is useful as one-part or two-part type elastic sealant. Furthermore it provides an elastic sealant excellent in solvent-resistance, chemical resistance, water repellency, oil repellency, etc.