Silanated polyamides

Details Silanated polyamides Silanated polyamides

1995-06-07

1998-09-08

Truong, Duc

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

Synthetic resins

From carboxylic acid or derivative thereof

528312, 528322, 525 63, 525100, 525101, 525178, 525474, C08G 6908, C08G 7310

Patent

active

058046810

ABSTRACT:
The present invention relates to thermoplastic polyamides and to thermoplastic elastomers based on polyamide with improved thermomechanical performance. They are obtained by grafting along the polymer chain with alkoxysilanes having at least one unsaturation, and especially vinyltrialkoxysilanes of formula CH.sub.2 .dbd.CH--Si--(OR).sub.3 where R represents an alkyl or an alkoxy-substituted alkyl group. The weight ratio of the silane to polyamide in the grafted polymer is generally between 0.1 and 5%. These grafted polyamides may be crosslinked by hydrolysis in steam at 100.degree. C. or by contact with water. The grafted and optionally crosslinked polyamides may be used for producing molded or extruded articles, such as tubes, jackets, single-layer and multilayer films and complex parts, and powder for coating substrates.

REFERENCES:
patent: 4783511 (1988-11-01), Schmid
Asahi, Derwent WPI, AN 87-325288/46 (1987).
Kao, Derwent WPI, AN 84-284631/46 (1984).
Kao, Derwent WPI, AN 86-004880/01 (1986).
Teijin, Derwent WPI, AN 82-20125e/11 (1982).

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