Water dispersible polyamide ester

Details Water dispersible polyamide ester Water dispersible polyamide ester

1988-02-05

1989-10-10

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528288, 5282953, 528296, 528300, 528308, 528335, 528350, 528499, 5254205, 525425, 523160, C08G 6302

Patent

active

048733113

ABSTRACT:
The present invention comprises a water dispersible polyamide ester useful in flexographic ink formulations and Cold Seal Release Lacquers. A high AV polyamide is reacted with a polyol to increase molecular weight via ester formation. The polyamide ester is then reacted with a cyclic carboxylic anhydride. A general formula for the product resin is as follows: ##STR1## wherein x is an integer of 1-5; R'=a polyamide ester chain of molecular weight 500-2000; where y is an integer of 1-3; R.sup.2 is independently at each occurrence the residue of a cyclic carboxylic anhydride bearing at least one free carboxyl group or ##STR2## where R.sup.3 is independently at each occurrence R' or a polyamide segment of up to 2000 MW.

REFERENCES:
patent: 3355409 (1967-11-01), Bissot
patent: 3776865 (1973-12-01), Glaser et al.
patent: 3778394 (1973-12-01), Lovald et al.
patent: 3844991 (1974-10-01), Ferraro et al.
patent: 4365041 (1982-12-01), Okamoto et al.
patent: 4514540 (1985-04-01), Peck
patent: 4683262 (1987-07-01), Whyzmuzis et al.

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