Cluster azasilacycloalkyl functional polysiloxanes

Details Cluster azasilacycloalkyl functional polysiloxanes Cluster azasilacycloalkyl functional polysiloxanes

1992-09-02

1993-10-19

Dean, Jr., Ralph H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 15, 528 31, 528 32, 528 37, 528 38, C08G 7726

Patent

active

052546454

ABSTRACT:
Cluster azasilacycloalkyl functional polysiloxanes are prepared by combining vinyl-containing polysiloxane, polyfunctional hydrogen polysiloxane, and a platinum catalyst; reacting the combination to produce .tbd.Si--CH.sub.2 CH.sub.2 --Si.tbd. linkages and substantial amounts of unreacted Si--H groups remain in the reaction product. The Si--H groups in the reaction product are reacted with aliphatically unsaturated azasilacycloalkane forming the cluster compound. These cluster azasilacycloalkyl functional polysiloxanes cure when exposed to moisture to elastomers, sealants, encapsulants, and resins products.

REFERENCES:
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patent: 3146250 (1964-08-01), Speier
patent: 3159601 (1964-12-01), Ashby
patent: 3159662 (1964-12-01), Ashby
patent: 3220972 (1965-11-01), Lamoreaux
patent: 3419593 (1968-12-01), Willing
patent: 3723497 (1973-03-01), Baney
patent: 4575545 (1986-03-01), Nakos
patent: 5110967 (1992-05-01), King et al.

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