Siloxane-amide block copolymer and process for producing the sam

Details Siloxane-amide block copolymer and process for producing the sam Siloxane-amide block copolymer and process for producing the sam

1988-08-05

1989-10-31

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 28, 528 18, 525431, 556419, C08G 7704

Patent

active

048778559

ABSTRACT:
A siloxane-amide block copolymer represented by formula (I): ##STR1## wherein the symbols are as defined in the specification, is disclosed. The polymer of formula (I) is produced by reacting a polycondensate of a diaminosiloxane and a dicarboxylic acid dihalide with an epoxysilane to induce ring-opening addition reaction between the terminal amino groups of the polymer and the epoxy group of the epoxysilane. The siloxane-amide block copolymer exhibits excellent processability and reactive curability due to the hydrolyzable silyl groups at the both terminals.

REFERENCES:
patent: 4278786 (1981-07-01), Nanaumi et al.
patent: 4668754 (1987-05-01), Policastro et al.
patent: 4754016 (1988-06-01), Ai et al.

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