Copolyamides from lactam and diamine salts of two different dica

Details Copolyamides from lactam and diamine salts of two different dica Copolyamides from lactam and diamine salts of two different dica

1976-02-17

1978-07-25

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

260 18N, 428474, 528327, 528329, C08G 6914

Patent

active

041028716

ABSTRACT:
Copolyamides which are manufactured using (A) from 1 to 60 parts by weight of a cyclic lactam of 6 to 12 carbon atoms and/or an .omega.-aminocarboxylic acid of 6 to 20 carbon atoms and (B) from 40 to 99 parts by weight of the salt of at least two different dicarboxylic acids of the general formula HOOC-R-COOH where R is an aliphatic or cycloaliphatic radical of 4 to 46 carbon atoms with (a) cycloaliphatic and/or aliphatic diamines of 4 to 20 carbon atoms, which possess at least one secondary amino group and (b) optionally, up to 0.3 equivalent of primary .alpha.,.omega.-diamines of 2 to 20 carbon atoms, are excellent hot-melt adhesives.

REFERENCES:
patent: 3989678 (1976-11-01), Furukawa et al.

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