ROOM TEMPERATURE FAST-CURABLE SEALING COMPOSITION AND METHOD FOR CURING THE SAME

PROBLEM TO BE SOLVED: To provide a room temperature curable polyisobutylene composition which is cured by a condensation reaction, has a high curing speed and remarkably improved inner curability and is suitable for sealing electric and electronic parts and so on. SOLUTION: This room temperature fas...

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Hauptverfasser: HOSOKI SATOSHI, SADANAGA HIROKI, ONOUCHI HIROYUKI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a room temperature curable polyisobutylene composition which is cured by a condensation reaction, has a high curing speed and remarkably improved inner curability and is suitable for sealing electric and electronic parts and so on. SOLUTION: This room temperature fast-curable sealing agent composition comprising (A) a polyisobutylene having hydrolyzable silyl groups at both the molecular chain ends, (B) an organic compound having at least one amino group in the molecule in an amount of 0.01 to 1 mole per 100 pts.wt. of the component (A), and (C) an organic compound containing at least one carbonyl group in the molecule in an amount of 0.001 to 1 mole per 100 g of the component (A), characterized in that the carbonyl group and the amino group contained in the components (B) and (C) react with each other to produce water. The method for curing the composition, characterized by reacting the component (B) with the component (C) to produce water, whereby the water accelerates the fast-curing and deep-curing properties of the composition.