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EP0247782A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for coloring polyester shaped articles

Assignee: Milliken Research Corp
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Filing: 1987-05-20
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Granted: —
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Expires: 2007-05-20
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Abstract

Abstract A process is provided for the coloration of a preformed polyester resin shaped article having improved dye migration properties, which comprises: (a) coloring said article with a coloring agent in an amount sufficient to provide coloration to said shaped article; said coloring agent having the formula wherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms and such polymer constituent has a molecular weight of from about 132 to about 500; and n is an integer of fromm 1 to about 12; and X is selected from -OH, -NH 2 , -SH, -OCORi, -C0 2 H, -CO 2 R 1 , -S0 3 H, -S0 3 R l phosphate, phosphonite, urea, urethane, alkoxyl and alkoxide, wherein R 1 is a lower alkyl group containing from 1 to about 6 carbon atoms; and (b) grafting said coloring agent to said article by heating said article to a temperature below a temperature at which said article will melt, but to a high enough temperature and for a period of time sufficient to achieve grafting of said coloring agent to said article.

Inventors

  • 👤 John William Rekers
  • 👤 William Carl Kimbrell, Jr.

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 20:50
CPC Classifications
C; C09; C09B; C09B69/00; D; D06; D06M; D06M14/00; D06M14/08; D06M14/12; D06M14/14; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/526; D06P5/00; D06P5/20; D06P5/2066

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 202 words
A.process for the coloration of a preformed polyester resin shaped article having improved dye migration properties, which comprises: (a) coloring said article with a coloring agent in an amount sufficient to provide coloration to said shaped article; said coloring agent having the formula wherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms and such polymer constituent has a molecular weight of from about 132 to about 5000; and is an integer of from 1 to about 12; and X is selected from -OH, -NH 2 , -SH, -OCOR 1 , -CO 2 H, -CO 2 R 1 , -SO 3 H, -S0 3 R 1 phosphate, phosphonite, urea, urethane, alkoxyl and alkoxide, wherein R 1 is a lower alkyl group containing from 1 to about 6 carbon atoms; and (b) grafting said coloring agent to said article by heating said article to a temperature below a temperature at which said article will melt, but to a high enough temperature and for a period of time sufficient to achieve grafting of said coloring agent to said article.
Claim 2
Dependent Claim 202 words
A.process for the coloration of a preformed polyester resin shaped article having improved dye migration properties, which comprises: (a) coloring said article with a coloring agent in an amount sufficient to provide coloration to said shaped article; said coloring agent having the formula wherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms and such polymer constituent has a molecular weight of from about 132 to about 5000; and is an integer of from 1 to about 12; and X is selected from -OH, -NH 2 , -SH, -OCOR 1 , -CO 2 H, -CO 2 R 1 , -SO 3 H, -S0 3 R 1 phosphate, phosphonite, urea, urethane, alkoxyl and alkoxide, wherein R 1 is a lower alkyl group containing from 1 to about 6 carbon atoms; and (b) grafting said coloring agent to said article by heating said article to a temperature below a temperature at which said article will melt, but to a high enough temperature and for a period of time sufficient to achieve grafting of said coloring agent to said article.
Claim 3
Dependent Claim 30 words
The process of Claim 1 wherein R is selected from nitroso nitro, azo, including monoazo, diazo, and trisazo, diarylmethanes, triarylmethanes, xanthene, acridene, methine, thiazole, indamine, azine, oxazine, and anthraquinone radicals.
Claim 4
Dependent Claim 202 words
The process of Claim 1 wherein said coloring agent is of the formula wherein R A is an organic chromophore group, A is a linking moiety in said organic chromophore group selected from the group consisting of N, 0, S or CO 2 , the alkylene moiety of the alkyleneoxy constituent contains from about 2 to about 4 carbon atoms, an is an integer of from 2 to about 120, m is 1 when A is 0, S, C0 2 and 1 or 2 when A is n, x is an integer of from 1 to about 5 and the product of n times x times m (n·x·x) is from 2 to about 120, and R 1 is selected from the group consisting of and sulfonates and sulfates of each of the members of said group, wherein R 2 is H,OH, an alkyl radical containing up to about 20 carbon atoms or alkyl substituted carbonyl radical containing up to about 20 carbon atoms, j and k are OH OM or OR 3 wherein M is a cation moiety of an alkali metal, an alkaline earth metal or ammonium, and R 3 is an alkyl radical containing up to about 20 carbon atoms.
Claim 5
Dependent Claim 15 words
The process of Claim 1 wherein said preformed polyester resin-shaped article is a textile material.
Claim 6
Dependent Claim 36 words
The process of Claim 1 wherein said colorant is applied to said polyester resin-shaped article in an amount of from about .001% to about 10% by weight based upon the overall weight of the resin composition.
Claim 7
Dependent Claim 35 words
The process of Claim 1 wherein said colorant is applied to said polyester resin-shaped article from an aqueous solution, said article is subsequently dried and heated to cause penetration of said colorant into said resin.
Claim 8
Dependent Claim 28 words
The process of Claim 1 wherein said coloring agent is grafted to said article by heating said article to a temperature of from about 175°C. to about 250°C.

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