Thiophene based fugitive colorants
AssigneeMilliken Research Corporation
InventorsMargaret S. Keller, Edward W. Kluger
Life of this patent
Estimating the term…
Abstract
Fugitive colorants having the general formula: A--N.dbd.N--B--[(C)H].sub.n wherein A is thiophene or a thiophene derivative, N is nitrogen, B is a nitrogen containing organic dyestuff coupling component, C is a polymer chain bound to nitrogen in the dyestuff coupling component; said polymer chain being selected from polyethylene oxide, polypropylene oxide, polybutylene oxide and copolymers of polyethylene oxide, polypropylene oxide, and/or polybutylene oxide, said polymer chain having about x repeating monomeric units, n is an integer from 1 to 6 and the product of n times x is from about 50 to about 250. A coloration process is also disclosed and claimed.
Claims11
A polymeric, fugitive colorant of the formula:
- A--N.dbd.N--B--[(C)H].sub.n
- wherein A is thiophene or a thiophene derivative, N is nitrogen, B is a nitrogen containing organic dyestuff coupling component, C is a polymer chain bound to nitrogen in the organic dyestuff coupling component;
- said polymer chain being selected from polyethylene oxide, polypropylene oxide, polybutylene oxide and copolymers of polyethylene oxide, polypropylene oxide, and/or polybutylene oxide, said polymer chain having about x repeating monomeric units, n is an integer from 1 to 6 and the product of n times x is from about 50 to about 250.
A method of temporary coloration of textile materials comprising the steps of:
- (a) providing a colorant having the formula:
- A--N.dbd.N--B--[(C)H].sub.n
- wherein A is a thiophene or a thiophene derivative, N is nitrogen, B is a nitrogen containing organic dyestuff coupling component, C is a polymer chain bound to nitrogen in the dyestuff coupling component, said polymer chain being selected from polyethylene oxide, polypropylene oxide, polybutylene oxide and copolymers of polyethylene oxide, polypropylene oxide and/or polybutylene oxide, said polymer chain having about x repeating monomeric units, n is an integer from 1 to 6 and the product of n times x is from about 50 to about 250;
- (b) producing an aqueous solution of said colorant;
- and
- (c) applying said colorant solution onto said textile material.
Dependencies are inferred from the claim text.