Modified colophony resins, a process for their preparation, thei

Details Modified colophony resins, a process for their preparation, thei Modified colophony resins, a process for their preparation, thei

1990-05-10

1993-07-06

Kight, III, John

Chemistry: natural resins or derivatives; peptides or proteins;

Natural resins or derivatives

Rosin or derivative used as starting material in process, or...

130214, 130218, 428497, D06P 146

Patent

active

052255271

ABSTRACT:
Modified colophony resins are strengthened with .alpha.,.beta.-unsaturated carbonyl compounds and simultaneously converted into the corresponding intermolecular resin acid anhydrides with dehydrating agents. Paper-sizing agents which are superior to those of the prior art can be prepared from these.

REFERENCES:
patent: 4540635 (1985-09-01), Ronge et al.

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