Polycondensates as dyeing promoters for hydrophobic polymer articles

• US 20050005372A1
• Filed: 07/08/2004
• Published: 01/13/2005
• Est. Priority Date: 07/10/2003
• Status: Active Grant

• Current Assignee: CIBA Specialty Chemicals
• Original Assignee: CIBA Specialty Chemicals
• Inventors: Dong, Ying, Wood, Mervin G., Leggio, Andrew J., McNamara, John J., Suhadolnik, Joseph
• Granted Patent: US 7,235,111 B2
• Time in Patent Office: Days
• US Class Current: 8/512
• CPC Class Codes: C08G 63/06 derived from hydroxycarboxylic acids
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C08L 101/005 Dendritic macromolecules
• CPC Class Codes: C08L 101/06 containing oxygen atoms C08L101/025 takes precedence
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/06 Homopolymers or copolymers of unsaturated hydrocarbons; Derivatives thereof
• CPC Class Codes: C08L 67/04 Polyesters derived from hydroxycarboxylic acids, e.g. lactones C08L67/06 takes precedence
• CPC Class Codes: D01F 1/10 Other agents for modifying properties
• CPC Class Codes: D01F 6/04 from polyolefins
• CPC Class Codes: D01F 6/46 of polyolefins
• CPC Class Codes: D06P 1/16 using dispersed, e.g. acetate, dyestuffs
• CPC Class Codes: D06P 1/5221 Polymers of unsaturated hydrocarbons, e.g. polystyrene polyalkylene
• CPC Class Codes: D06P 1/5271 Polyesters; Polycarbonates; Alkyd resins
• CPC Class Codes: D06P 3/79 Polyolefins
• CPC Class Codes: D06P 3/791 using acid dyes
• CPC Class Codes: D06P 3/794 using dispersed dyes
• CPC Class Codes: D06P 5/001 Special chemical aspects of printing textile materials
• CPC Class Codes: D06P 5/22 Effecting variation of dye affinity on textile material by chemical means that react with the fibre documents concerning material modified in the mass by compounding with modifying agents affecting the dye affinity after spinning, are not classified here: see the relevant groups C08, D01F, D06P3/00; grafting of monomers on textile materials C08F, D06M11/00

Abstract

A process for dyeing or printing an article comprising a hydrophobic polymer, wherein said polymer is brought into contact with a condensation polymer obtained by condensation of at least one poly-hydroxyl-mono-carboxylic acid, prior to or simultaneously with the treatment of said article with a color imparting compound, with the proviso that the condensation polymer is not terminated with lipophilic groups, provides dyed articles with good fastness properties.

Claims

1. A process for dyeing or printing an article comprising a hydrophobic polymer, wherein said polymer is brought into contact with a condensation polymer obtained by condensation of at least one poly-hydroxyl-mono-carboxylic acid, prior to or simultaneously with the treatment of said article with a color imparting compound, with the proviso that the condensation polymer is not terminated with lipophilic groups.

2. A process according to claim 1, wherein

the poly-hydroxyl-mono-carboxylic acid is a compound of the formula

wherein

R is C₁-C₁₂alkyl or a radical —

CH₂—

OH.

3. A process according to claim 1, wherein

the condensation polymer is a homopolymer.

4. A process according to claim 2, wherein

R is C₁-C₄alkyl.

5. A process according to claim 2, wherein

R is methyl.

6. A process according to claim 1, wherein

the hydrophobic polymer is a polyolefin.

7. A process according to claim 1, wherein

the hydrophobic polymer is polyethylene or polypropylene.

8. A process according to claim 1, wherein

the color imparting compound comprises at least one disperse dyestuff.

9. A process according to claim 1, wherein

the article is a fiber material.

10. A process according to claim 9, wherein

the fiber material is dyed according to the exhaust dyeing method.

11. A process according to claim 9, wherein

the condensation polymer is applied to the fiber material simultaneously with the color imparting compound.

19. An article obtained according to the process of claim 1.

12. A composition comprising

(a) a condensation polymer obtained by condensation of at least one poly-hydroxyl-mono-carboxylic acid, and

(b) a hydrophobic polymer,

with the proviso that the condensation polymer is not terminated with lipophilic groups.

13. A composition according to claim 12, wherein

the poly-hydroxyl-mono-carboxylic acid is a compound of the formula

wherein

R is C₁-C₁₂alkyl or a radical —

CH₂—

OH.

14. A composition according to claim 12, wherein

the condensation polymer is a homopolymer.

15. A process for the preparation of an article comprising a hydrophobic polymer which shows good affinity to dyes, wherein said polymer is brought into contact with a condensation polymer obtained by condensation of at least one poly-hydroxyl-mono-carboxylic acid, with the proviso that the condensation polymer is not terminated with lipophilic groups.

16. A process according to claim 15, wherein

the poly-hydroxyl-mono-carboxylic acid is a compound of the formula

wherein

R is C₁-C₁₂alkyl or a radical —

CH₂—

OH.

20. An article obtained according to the process of claim 15.

17. A process for the preparation of a condensation polymer, comprising reacting at least one poly-hydroxyl-mono-carboxylic acid at a temperature of at least 200°

C.

18. A process according to claim 17, wherein

the poly-hydroxyl-mono-carboxylic acid is a compound of the formula

wherein

R is C₁-C₁₂alkyl or a radical —

CH₂—

OH.