Room temperature curable polyether composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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528 17, 528 21, 528 25, 528 26, 528 31, 25218215, C08L 8300, C08G 7706, C09K 300

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active

053589963

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.

REFERENCES:
patent: 4618646 (1986-10-01), Takago et al.
patent: 4758646 (1988-07-01), Raleigh et al.
patent: 4877859 (1989-10-01), Hattori et al.
patent: 4895917 (1990-01-01), Gruning
patent: 5227410 (1993-07-01), Eckberg et al.

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