Copolyamide

Details Copolyamide Copolyamide

1976-05-20

1977-09-27

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 78R, 2604045, 428474, C08G 6926

Patent

active

040510875

ABSTRACT:
Normally solid, moldable polyamides having diamine-derived structural units of the formula ##STR1## wherein each A is individually selected from the group consisting of 5-methylnonamethylene, 2,4-dimethyloctamethylene, 2,4,6-trimethylheptamethylene, and 4-isopropylheptamethylene; first diacid-derived structural units of the formula ##STR2## and second diacid-derived structural units of the formula ##STR3## wherein X is a divalent aliphatic hydrocarbon radical containing from 14 to 46 carbon atoms. Minor amounts of other polyamide-forming materials can be included in the copolyamide to provide up to 30 percent of the nitrogen atoms and up to 30 percent of the carbonyl groups. When used as adhesives, these copolyamides possess very good initial T-peel strength.

REFERENCES:
patent: 3242141 (1966-03-01), Vertnik et al.
patent: 3294758 (1966-12-01), Gabler
patent: 3499853 (1970-03-01), Griebsch et al.

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