Insoluble pigments and preparation thereof

Claim 2

A water-insoluble pigment which comprises a complex of (1) a water-insoluble inorganic anion exchange material with a layered structure and (2) a water-soluble dye, said anion exchange material represented by the general formula: where M is a metal element or elements each with a positive valence of 2; Q is a metal element or elements each with a positive valence of 3; A -1 , A- 2 , A -3 , and A -4 are each one or more exchangeable anions each having a negative valence of 1, 2, 3, and 4, respectively; and n, x, d, e, f, and g are real numbers greater than or equal to zero and satisfy the following: Q<x≦1 d + 2e + 3f + 4g = x 0≦n≦10

Claim 3

The pigment of Claim 1 wherein M is magnesium.

Claim 4

The pigment of Claim 1 or 2 wherein Q is aluminum.

Claim 5

The pigment of any preceding claim wherein x is 1.

Claim 6

The pigment of any preceding claim wherein A', A7 2 , A"3, and A -4 are each one or more anions of halides, hydroxides, nitrates, phosphates, carbonates sulfates, or mixtures thereof.

Claim 7

The pigment of Claim 1 wherein A -2 is CO 3 -2 and d, f, and g are 0.

Claim 8

The pigment of any of Claims 1 to 6 wherein A -1 is chloride, bromide, iodide or fluoride ion, or a mixture of two or more thereof and e, f, and g are 0.

Claim 9

The pigment of any of Claims 1 to 6 wherein A -1 is Cl -1 , A -2 is CO 3 -2 and f and g are 0.

Claim 10

The pigment of any of Claims 1 to 6 wherein A -1 is a mixture of Cl -1 and HCO 3 -1 and e, f and g are 0.

Claim 11

The pigment of any of Claims 1 to 6 wherein A -1 is a mixture of Cl -1 and HCO 3 -1 , A -2 is CO 3 -2 and f and g are 0.

Claim 12

1 1 . The pigment of Claim 3 wherein the anion exchange material is [MgAl(OH) 4 ]Cl·nH 2 O.

Claim 13

The pigment of any preceding claim wherein the dye is an anionic dye, a sulfonated dye, a FD&C dye, or a D&C dye.

Claim 14

The pigment of Claim 12 wherein the dye is FD&C Blue No. 1, Blue No. 2, Green No. 3, Red No. 3, Yellow No. 5, Yellow No. 6 or mixtures thereof.

Claim 15

The pigment of Claim 12 wherein the dye is D&C Green No. 8, Yellow No. 7, Yellow No. 10 or mixtures thereof.

Claim 16

The pigment of any preceding claim wherein the complex also contains a water-soluble polymer.

Claim 17

A soap containing the pigment of any one of Claims 1 to 15.

Claim 18

A thermoplastic resin or thermoset resin containing the pigment of any one of Claims 1 to 15.

Claim 19

A process for preparing a water-insoluble pigment which comprises contacting (1) an anion exchange material having a layered structure and -

Claim 20

(2) a water-soluble dye, said anion exchange material being as defined in any one of Claims 1 to 11.

Claim 21

The process of Claim 18 wherein a water-soluble polymer is also contacted with the anion exchange material.