Acid donors for dyeing polyamide

Details Acid donors for dyeing polyamide Acid donors for dyeing polyamide

2005-04-25

2010-06-01

Pyon, Harold Y (Department: 1796)

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

Synthetic resins

Ethylenically unsaturated reactant admixed with either...

C008S115580, C008S115590, C008S582000, C008S565000, C008S568000, C008S573000

Reexamination Certificate

active

07728067

ABSTRACT:
An adjuvant composition comprising (A) a C1-C2carboxylic acid ester of a polyhydroxy compound containing from 2 to 20 hydroxyl groups and (B) an N-heterocyclic compound having a pKa, value of from 6 to 8 is storage-stable and suitable as an acid donor in the dyeing of polyamides.

REFERENCES:
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patent: 4568351 (1986-02-01), Palleiro Cardona et al.
patent: 5718732 (1998-02-01), Bennett et al.
patent: 2002/0055619 (2002-05-01), Dietz et al.
patent: 2004/0253370 (2004-12-01), Hoersch
patent: 3417780 (1984-11-01), None
patent: 19626812 (1997-01-01), None
EIC Search, completed by STIC on Apr. 17, 2009.

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