Colored polyurethane foams and a process for their production

Claim 2

A colored polyurethane foam prepared by the reaction of an organic polyisocyanate with a component that contains at least two compounds having functional groups containing active hydrogen atoms and that comprises a polyol and a dispersion of a pigment in a low-viscosity semi-reactive vehicle that comprises a glycol monocarboxylate having the structural formula ##STR5## wherein R represents an alkyl group having 1 to 16 carbon atoms, an alkoxy group having 2 to 8 carbon atoms, an alkoxyalkyl group having 3 to 8 carbon atoms, or a polyalkoxy group having 3 to 8 carbon atoms, R' represents an alkyl group or an alkenyl group having 2 to 18 carbon atoms, and n is 1, 2, or 3, said component containing from 0.5 part to 25 parts by weight of the glycol monocarboxylate per 100 parts by weight of the polyol.

Claim 3

A colored polyurethane foam as defined in claim 1 wherein the polyisocyanate is reacted with a component that contains from 1 part to 10 parts by weight of the glycol monocarboxylate per 100 parts by weight of the polyol.

Claim 4

A colored polyurethane foam as defined in claim 1 wherein the vehicle of the pigment dispersion comprises a glycol monocarboxylate having the structural formula ##STR6## wherein R" represents an alkyl group having 1 to 3 carbon atoms and R'" represents an alkyl group having 6 to 12 carbon atoms.

Claim 5

A colored polyurethane foam as defined in claim 1 wherein the vehicle of the pigment dispersion comprises a 1,2-propylene glycol monocarboxylate.

Claim 6

A colored polyurethane foam as defined in claim 1 wherein the pigment dispersion contains from 5% to 20% by weight of pigment.

Claim 7

A colored polyurethane foam as defined in claim 1 wherein the pigment dispersion contains from 10% to 15% by weight of pigment.

Claim 8

A colored polyurethane foam as defined in claim 1 wherein the pigment dispersion contains 10% to 15% of carbon black in a vehicle that comprises 1,2-propylene glycol neodecanoate.

Claim 9

The process for the production of colored polyurethane foams that comprises reacting an organic polyisocyanate with a component that contains at least two compounds having functional groups containing active hydrogen atoms and that comprises a polyol and a dispersion of a pigment in a low-viscosity, semi-reactive vehicle that comprises a glycol monocarboxylate having the structural formula ##STR7## wherein R represents an alkyl group having 1 to 16 carbon atoms, an alkoxy group having 2 to 8 carbon atoms, an alkoxyalkyl group having 3 to 8 carbon atoms, or a polyalkoxy group having 3 to 8 carbon atoms, R' represents an alkyl group or an alkenyl group having 2 to 18 carbon atoms, and n is 1, 2, or 3, said component containing from 0.5 part to 25 parts by weight of the glycol monocarboxylate per 100 parts by weight of the polyol.

Claim 10

The process for the production of colored polyurethane foams that comprises reacting an organic polyisocyanate with a component that contains at least two compounds having functional groups containing active hydrogen atoms and that comprises a polyol and a dispersion of a pigment in a low-viscosity, semi-reactive vehicle that comprises a glycol monocarboxylate having the structural formula ##STR7## wherein R represents an alkyl group having 1 to 16 carbon atoms, an alkoxy group having 2 to 8 carbon atoms, an alkoxyalkyl group having 3 to 8 carbon atoms, or a polyalkoxy group having 3 to 8 carbon atoms, R' represents an alkyl group or an alkenyl group having 2 to 18 carbon atoms, and n is 1, 2, or 3, said component containing from 0.5 part to 25 parts by weight of the glycol monocarboxylate per 100 parts by weight of the polyol.

Claim 11

The process of claim 8 wherein the polyisocyanate is reacted with a component that contains from 1 part to 10 parts by weight of the glycol monocarboxylate per 100 parts by weight of the polyol.

Claim 12

The process of claim 8 wherein the vehicle of the pigment dispersion comprises a glycol monocarboxylate having the structural formula ##STR8## wherein R" represents an alkyl group having 1 to 3 carbon atoms and R'" represents an alkyl group having 6 to 12 carbon atoms.

Claim 13

The process of claim 8 wherein the vehicle of the pigment dispersion comprises a 1,2-propylene glycol monocarboxylate.

Claim 14

The process of claim 8 wherein the pigment dispersion contains from 5% to 20% by weight of pigment.

Claim 15

The process of claim 8 wherein the pigment dispersion contains from 10% to 15% by weight of pigment.

Claim 16

The process of claim 8 wherein the pigment dispersion contains from 10% to 15% by weight of carbon black in a vehicle that comprises 1,2-propylene glycol neodecanoate.

Claim 17

A pigment dispersion for use in the production of colored polyurethane foams that comprises from 5% to 20% by weight of a pigment in a low-viscosity, semi-reactive vehicle that comprises a glycol monocarboxylate having the structural formula ##STR9## wherein R represents an alkyl group having 1 to 16 carbon atoms, an alkoxy group having 2 to 8 carbon atoms, an alkoxyalkyl group having 3 to 8 carbon atoms, or a polyalkoxy group having 3 to 8 carbon atoms, R' represents an alkyl group or an alkenyl group having 2 to 18 carbon atoms, and n is 1, 2, or 3.

Claim 18

A pigment dispersion for use in the production of colored polyurethane foams that comprises from 5% to 20% by weight of a pigment in a low-viscosity, semi-reactive vehicle that comprises a glycol monocarboxylate having the structural formula ##STR9## wherein R represents an alkyl group having 1 to 16 carbon atoms, an alkoxy group having 2 to 8 carbon atoms, an alkoxyalkyl group having 3 to 8 carbon atoms, or a polyalkoxy group having 3 to 8 carbon atoms, R' represents an alkyl group or an alkenyl group having 2 to 18 carbon atoms, and n is 1, 2, or 3.

Claim 19

A pigment dispersion as defined in claim 15 that contains from 10% to 15% by weight of pigment.

Claim 20

A pigment dispersion as defined in claim 15 wherein the vehicle comprises a glycol monocarboxylate having the structural formula ##STR10## wherein R" represents an alkyl group having 1 to 3 carbon atoms and R'" represents an alkyl group having 6 to 12 carbon atoms.

Claim 21

A pigment dispersion as defined in claim 15 wherein the vehicle comprises 1,2-propylene glycol monocarboxylate.

Claim 22

A pigment dispersion as defined in claim 15 that contains from 10% to 15% by weight of carbon black in a vehicle that comprises 1,2-propylene glycol mononeodecanoate.