Method of making siloxane-based polyamides

Details Method of making siloxane-based polyamides Method of making siloxane-based polyamides

1998-07-13

1999-11-09

Moore, Margaret G.

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

Synthetic resins

From silicon reactant having at least one...

528 15, 528 31, C08G 7726

Patent

active

059816805

ABSTRACT:
A method of making siloxane-based polyamides which includes at least one repeating unit represented by the formula ##STR1## wherein X is a linear or branched C.sub.1 -C.sub.30 alkylene chain; Y is a linear or branched C.sub.1 -C.sub.20 alkylene chain; DP is an integer having a value of 10-500; n is an integer having a value of 1-500. The method involves heating an intimate reaction mixture containing an olefinic acid and an organic diamine at a temperature greater than 100.degree. C. and forming an organic diamide; and thereafter reacting the organic diamide with a hydride-terminated polydimethylsiloxane in the presence of a hydrosilylation catalyst to form the siloxane-based polyamide.

REFERENCES:
patent: 3218344 (1965-11-01), Bailey
patent: 3313773 (1967-04-01), Lamoreaux
patent: 3392143 (1968-07-01), Holub
patent: 3746738 (1973-07-01), Pepe et al.
patent: 3892643 (1975-07-01), Tanaka et al.
patent: 4145508 (1979-03-01), Bargain et al.
patent: 5874069 (1999-02-01), Mendolia et al.

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