Universal stir-in pigments

• US 7,833,343 B2
• Filed: 09/28/2007
• Issued: 11/16/2010
• Est. Priority Date: 11/06/2006
• Status: Expired due to Fees

• Current Assignee: Clariant Finance (Bvi) Limited
• Original Assignee: Clariant Finance (Bvi) Limited
• Inventors: Pitarch López, Jesús, Plueg, Carsten
• Primary Examiner(s): Green; Anthony J
• Application Number:
  US12/513,442
• Publication Number:
  US 20100068642A1
• Time in Patent Office: 1,145 Days
• Field of Search: 106/413, 106/493, 106/494, 106/495, 106/496, 106/497, 106/498, 106/499, 106/31.09, 106/31.11, 106/31.75, 106/31.93, 106/281.1, 106/476, 512/98, 71/27, 252/582, 430/108.2, 430/108.1
• US Class Current: 106/493
• CPC Class Codes: C09B 67/0013 with polymeric coatings
• CPC Class Codes: C09B 67/0063 of organic pigments with only macromolecular substances
• CPC Class Codes: C09D 11/037 characterised by the pigment
• CPC Class Codes: C09D 11/17 characterised by colouring agents
• CPC Class Codes: C09D 11/18 specially adapted for ball-point writing instruments
• CPC Class Codes: C09D 11/322 Pigment inks
• CPC Class Codes: C09D 11/34 Hot-melt inks
• CPC Class Codes: C09D 11/36 based on non-aqueous solvents
• CPC Class Codes: C09D 5/035 Coloring agents, e.g. pigments C09D5/032 takes precedence
• CPC Class Codes: C09D 7/41 Organic pigments; Organic dyes
• CPC Class Codes: Y10T 428/131 Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
• CPC Class Codes: Y10T 428/1324 Flexible food casing [e.g., sausage type, etc.]

Abstract

The invention relates to a pigment preparation containing (a) 50-99 percent by weight of at least one pigment, (b) 1 to 50 percent by weight of an additive based on polyalkylene glycols, and (c) 0 to 10 percent by weight of an auxiliary agent from among the group comprising fillers, fire retardants, preservatives, light-stability agents, pigmentary and non-pigmentary dispersing agents, surfactants, antioxidants, foam inhibitors, resins, and antistatic agents, the percentages being in relation to the total weight of the pigment preparation. The additive that is based on polyalkylene glycols corresponds to formula Z′-[-(AO—)_n1—B-T-X—Y]_m—Z (1), wherein AO represents a C₂-C₁₀ alkyleneoxy unit, B represents a C₂-C₁₀ alkylene radical, and T represents —NR—, X represents one of the groups (formula), and Y represents a chemical bond or —NR³—.

Claims

1. A pigment preparation comprising

(a) 50% to 99% by weight of at least one pigment,

(b) 1% to 50% by weight of an additive based on polyalkylene glycols, and

(c) 0% to 10% by weight of an auxiliary selected from the group consisting of fillers, flame retardants, preservatives, light stabilizers, pigmentary and nonpigmentary dispersants, surfactants, antioxidants, defoamers, resins and antistats, all based on the overall weight of the pigment preparation,

wherein the additive based on polyalkylene glycols is of formula (I) where

Z′

-[-(AO—

)_n—

B-T-X—

Y]_m—

Z 

 

(1)

wherein

AO is a C₂-C₁₀-alkyleneoxy unit, wherein A may be the same or different and n is greater than 1,

B is a C₂-C₁₀-alkylene radical,

T is —

NR¹—

, where

R¹ is a covalent bond to X, a hydrogen atom, a C₁-C₁₈-alkyl radical, a C₃-C₇-cycloalkyl radical, benzyl or a substituted or unsubstituted C₆-C₁₈-aryl radical, where the substituents are halogen, methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, nitro or CF₃,

X is one of the groups

2. The pigment preparation as claimed in claim 1 wherein the at least one pigment is an organic pigment selected from the group consisting of monoazo, disazo, laked azo, β

-naphthol, Naphthol AS, benzimidazolone, disazo condensations, azo metal complex pigments polycyclic pigments, diketopyrrolopyrrole pigments and an acidic to alkaline carbon black.

3. The pigment preparation as claimed in claim 1, wherein

AO is an ethyleneoxy unit, a propyleneoxy unit or a combination thereof.

4. The pigment preparation as claimed in claim 1, wherein

B is an ethylene or propylene radical.

5. The pigment preparation as claimed in claim 1, wherein X is one of the groups

6. The pigment preparation as claimed in claim 1, wherein n is a number between 2 to 150.

7. The pigment preparation as claimed in claim 1, wherein m is a number between 2 to 50.

8. The pigment preparation as claimed in claim 1, wherein

AO is a block structure [(PO)_c(EO)_a(PO)_d], where

c is a number from 1 to 10,

d is a number from 1 to 10,

a is a number from 1 to 95, and

c+d+a=n, where n is a number from 5 to 100;

B is an ethylene or propylene radical;

T is —

NR¹—

, where

R¹ is a hydrogen atom or a direct covalent bond to X;

X is one of the groups

9. A process for preparing a pigment preparation as claimed in claim 1, comprising the steps of mixing the component (a) in the form of powder, granulate or press cake in the presence of water or of an organic solvent or of a mixture of water and organic solvent and optionally in the presence of component (c).

10. A synthetic material pigmented by a pigment preparation as claimed in claim 1.

11. An aqueous paint, emulsion, varnish color, water-thinnable varnish, wallpaper color or printing composition pigmented by a pigment preparation as claimed in claim 1.

12. A solvent-containing paint, emulsion, varnish color, wallpaper color or printing composition pigmented by a pigment preparation as claimed in claim 1.

13. An article or composition pigmented by a pigment preparation as claimed in claim 1, wherein the article or composition is selected from the group consisting of liquid printing inks, ink jet inks, electrophotographic toners, powder coatings, color filters, electronic inks electronic paper, wood preservation systems, viscose dope dyeing, sausage casings, seed, fertilizers, glass bottles roof shingles, coloring renders, concrete, woodstains, colored pencil leads, felt tip pens, waxes, paraffins, graphics inks, ballpoint pen pastes, chalks, washing and cleaning compositions, shoe care agents, latex products, abrasives and colored plastics.

14. A process for coloring a high molecular weight organic material, comprising the step of uniformly dispersing an effectively pigmenting amount of a pigment preparation as claimed in claim 1 in the organic material by stirring the pigment preparation into a suspension or solution of the organic material.

15. The pigment preparation as claimed in claim 2, wherein the polycyclic pigments are selected from the group consisting of phthalocyanine, quinacridone, perylene, perinone, thioindigo, anthanthrone, anthraquinone, flavanthrone, indanthrone, isoviolanthrone, pyranthrone, dioxazine, quinophthalone, isoindolinone and isoindoline.

16. The pigment preparation as claimed in claim 2, wherein the acidic to alkaline carbon black is a furnace blacks or gas blacks.

17. A pigmented or dyed natural and synthetic fiber material, a dyed or pigmented paper or laminate pigmented or dyed by the pigment preparation as claimed in claim 1.