The Dow Chemical Company

Michael D Joseph

Robert F Harris

Clarence E Habermann

Michael R Savina

This invention relates to a solid particulate polymer comprising 1) a backbone containing (a) a plurality of moieties selected from the group consisting of alkylene, arylene, aralkylene, alkylarylene, cycloalkylene, alkyleneoxy, and polyalkyleneoxy; (b) a plurality of moieties selected from the group consisting of internal urea, thiourea, biuret and dithiobiuret; and 2) end groups selected from the group consisting of internal urea, thiourea, biuret and dithiobiuret. The particulate polymer dispersions can be used for preparing reinforced polymer matrices, especially where the matrix comprises urethane and/or urea linkages. The invention allows for the preparation of a particulate polymer without using organic polyisocyanate.

Particulate polymers and stabilizer compounds and polymer compositions

Described herein are modified polyahls comprising (a) a backbone portion containing at least one polyalkyleneoxy moiety and one or more internal urea, amide, biuret, thiourea, dithiobiuret, or thioamide moieties, (b) end groups selected from the group consisting of amino, hydroxy amide or hydroxyester amide, wherein at least one end group is hydroxy amide or hydroxyester amide, wherein each internal moiety is separated from each other and from each end group by at lit least one alkylene, cycloalkylene, aralkylene, arylene, or alkyleneoxy moiety with 4-20 carbon atoms, or at least one polyalkyleneoxy moiety containing from 2-50 alkyleneoxy units. Also described are urethane/urea prepolymers and polymers prepared therefrom.

Hydroxy-functional polyethers containing urea, biuret, thiourea,

A polyahl comprising a backbone having at least one acyclic moiety selected from the group consisting of urea, biuret, thiourea, dithiobiuret, amide, and thioamide; and at least two polyalkyleneoxy moieties; and at least one terminal hydroxyalkyl carbamate group is disclosed. These polyahls may be prepared by contacting a modified polyamide compound containing in its backbone at least one acyclic moiety selected from the group consisting of urea, biuret, thiourea, dithiobiuret, amide, and thioamide wherein the amino groups are sufficiently spaced apart from each other that they do not undergo reaction with a single alkylene carbonate moiety to form a cyclic urea moiety, with a cyclic alkylene carbonate, in amounts thereof and under conditions effective to form the polyahl. Prepolymers and polymers prepared from such polyahls are also disclosed.

Polyalkyleneoxy polyahis containing hydrogen bonding moieties in their

Imines and secondary amines comprising a backbone portion containing a plurality of polyalkyleneoxy moieties and one or more internal urea, thiourea, biuret, thiobiuret, amide, or thioamide moieties, and a plurality of imino or secondary amino end groups, wherein each imino or secondary amino end group is separated from a urea, thiourea, biuret, dithiobiuret, amide, or thioamide moiety by at least one alkylene, cycloalkylene, aralkylene, arylene, alkyleneoxy, or ppolyalkyleneoxy moiety are disclosed. Prepolymers and polymers prepared from the imines and secondary amines are also disclosed. In addition, the imines and secondary amines of the invention are also useful as epoxy resin curing agents.

Imines and secondary amines containing hydrogen bonding moieties in

Disclosed herein is a process for the preparation of an o-aminophenyl derivative of a polyalkyleneoxy polyamine which comprises adding a polyalkyleneoxy polyamine to a dispersion or solution of an isatoic anhydride under reaction conditions sufficient to form the corresponding o-aminophenyl derivative. Also disclosed is an o-aminophenyl derivative of a modified polyamine comprising a backbone portion containing at least one polyalkyleneoxy moiety and one or more internal urea, biuret, amide, thiourea, dithiobiuret, or thioamide moieties, and a plurality of o-aminophenyl end groups wherein each o-aminophenyl group is separated from each urea, biuret, amide, thiourea, dithiobiuret, or thioamide moiety by at least one alkylene, cycloalkylene, aralkylene, arylene, or alkyleneoxy moiety with 4-20 carbon atoms, or at least one polyalkyleneoxy moiety containing from 2-50 alkyleneoxy units; as well as prepolymers and polymers prepared therefrom.

Process for the preparation of o-aminophenyl derivatives of aminated

This invention relates to novel polymeric polyamines containing internal urea, biuret, thiourea, dithiobiuret, amide, and/or thioamide moieties, and to polymers prepared therefrom. This invention also relates to novel isocyanate-functional prepolymers containing urea, biuret, thiourea, dithiobiuret, amide, and/or thioamide moieties and to polymers prepared therefrom.

Growing community of inventors

Midland, MI, United States of America

Michael D Joseph