Particulate polymer and polymer compositions therewith

Claim 2

A stable dispersion of (b) in (a) which comprises (a) a continuous phase: and (b) from about 0.1 to about 50 weight percent by total weight of (a) and (b) of a discrete particulate polymer which has an average particle size of about 30 microns or less, characterized in that (b) is a product containing a plurality of aminocarbonyl moieties or aminothiocarbonyl moieties which is the result of a reaction that comprises contacting (c) one or more carbonyl- or thiocarbonyl-containing compounds selected from the group consisting of a urea compound, a biuret compound, a polycarboxylic acid compound or its ester or anhydride, a polycarboxylic acid chloride, a thiourea compound, a dithiobiuret compound, a polythiocarboxylic acid or its ester or anhydride, and a polythiocarboxylic acid chloride; and (d) one or more polyamines.

Claim 3

The stable dispersion of claim 1 wherein the continuous phase is a liquid.

Claim 4

The stable dispersion of claim 2 wherein the liquid comprises a polyether polyol, a polyester polyol, a polycarbonate polyol, or mixtures thereof.

Claim 5

The stable dispersion of claim 3 wherein the liquid is a polyether polyol having from nominally about two to about eight isocyanate-reactive hydrogen atoms per molecule and an equivalent weight of from about 100 to about 4000.

Claim 6

The stable dispersion of claim 4 wherein the polyether polyol has from nominally about two to about four isocyanate-reactive hydrogens per molecule and an equivalent weight of from about 500 to about 2500.

Claim 7

The stable dispersion of claim 2 wherein the particulate polymer has an average particle size of about 25.0 microns or less.

Claim 8

The stable dispersion of claim 2 wherein the carbonyl-containing compound is one or more selected from the group consisting of a urea compound, a biuret compound, a polycarboxylic acid compound or its esters or anhydrides, and a polycarboxylic acid chloride.

Claim 9

The stable dispersion of claim 2 wherein the polyamine comprises an aliphatic amine, an araliphatic amine, a cycloaliphatic amine, an aromatic amine, or a polyaminated polyether polyol, or mixtures thereof.

Claim 10

The stable dispersion of claim 8 wherein the polyamine is a diamine and comprises a C 4-12 aliphatic diamine, an aromatic diamine, a diaminated polyether polyol, or mixtures thereof.

Claim 11

The stable dispersion of claim 9 wherein the diaminated polyether polyol has a molecular weight of at least 100.

Claim 12

The stable dispersion of claim 9 wherein the C 4-12 aliphatic diamine comprises butylene diamine, hexamethylene diamine, dodecamethylene diamine or mixtures thereof.

Claim 13

The stable dispersion of claim 9 wherein the aromatic amine comprises methylene diphenylamine, toluenediamine, or mixtures thereof.

Claim 14

The stable dispersion of claim 5 wherein the particulate polymer is prepared by contacting a carbonyl-containing compound which is urea with a polyamine which comprises hexamethylenediamine.

Claim 15

The stable dispersion of claim 1 wherein a stabilizing agent is present.

Claim 16

A process for preparing a particulate polymer containing a plurality of aminocarbonyl moieties or aminothiocarbonyl moieties that comprises contacting (c) one or more carbonyl- or thiocarbonyl-containing compounds selected from the group consisting of a urea compound, a biuret compound, a polycarboxylic acid compound or its ester or anhydride, a polycarboxylic acid chloride, a thiourea compound, a dithiobiuret compound, a polythiocarboxylic acid or its ester or anhydride, and a polythiocarboxylic acid chloride; and (d) one or more polyamines at an elevated temperature sufficient to cause the polymerization of (c) and (d) to form the particulate polymer, in a continuous phase in which the particulate polymer is insoluble.

Claim 17

A process for preparing a particulate polymer containing a plurality of aminocarbonyl moieties or aminothiocarbonyl moieties that comprises contacting (c) one or more carbonyl- or thiocarbonyl-containing compounds selected from the group consisting of a urea compound, a biuret compound, a polycarboxylic acid compound or its ester or anhydride, a polycarboxylic acid chloride, a thiourea compound, a dithiobiuret compound, a polythiocarboxylic acid or its ester or anhydride, and a polythiocarboxylic acid chloride; and (d) one or more polyamines at an elevated temperature sufficient to cause the polymerization of (c) and (d) to form the particulate polymer, in a continuous phase in which the particulate polymer is insoluble.

Claim 18

The process of claim 15 wherein the continuous phase comprises a polyether polyol, a polyester polyol, a polycarbonate polyol, an aromatic hydrocarbon, an aromatic ether, or mixtures thereof.

Claim 19

The process of claim 16 wherein the continuous phase contains a stabilizing agent in an amount sufficient to provide the particulate polymer as a stable dispersion in the continuous phase.

Claim 20

The process of claim 17 wherein the stabilizing agent is a monoamine or monocarboxylic acid compound.

Claim 21

The process of claim 18 wherein the stabilizing agent has a molecular weight of at least 400.

Claim 22

The process of claim 15 wherein the particulate polymer is prepared at a temperature of at least 50° C.

Claim 23

The process of claim 15 wherein the particulate polymer has a particle size of about 30 microns or less.

Claim 24

The process of claim 21 further comprising isolating the particulate polymer by removing the continuous phase.

Claim 25

A polymer matrix comprising urea and/or urethane linkages which is the product of a reaction that comprises contacting an organic polyisocyanate with an active hydrogen-containing compound characterized in that matrix has dispersed therein a discrete particulate polymer which has an average particle size of from about 30 microns or less and wherein said particulate polymer is a product containing a plurality of aminocarbonyl moieties or aminothiocarbonyl moieties and wherein said particulate polymer is the result of a reaction that comprises contacting (c) one or more carbonyl- or thiocarbonyl-containing compounds selected from the group consisting of a urea compound, a biuret compound, a polycarboxylic acid compound or its ester or anhydride, a polycarboxylic acid chloride, a thiourea compound, a dithiobiuret compound, a polythiocarboxylic acid or its ester or anhydride, and a polythiocarboxylic acid chloride; and (d) one or more polyamines.

Claim 26

A polymer matrix comprising urea and/or urethane linkages which is the product of a reaction that comprises contacting an organic polyisocyanate with an active hydrogen-containing compound characterized in that matrix has dispersed therein a discrete particulate polymer which has an average particle size of from about 30 microns or less and wherein said particulate polymer is a product containing a plurality of aminocarbonyl moieties or aminothiocarbonyl moieties and wherein said particulate polymer is the result of a reaction that comprises contacting (c) one or more carbonyl- or thiocarbonyl-containing compounds selected from the group consisting of a urea compound, a biuret compound, a polycarboxylic acid compound or its ester or anhydride, a polycarboxylic acid chloride, a thiourea compound, a dithiobiuret compound, a polythiocarboxylic acid or its ester or anhydride, and a polythiocarboxylic acid chloride; and (d) one or more polyamines.