E.i. Dupont De Nemours and Company

The United States of America As Represented by the United States

Chevron Research Company

Andrew H Janowicz

Robert G Bergman

Roy A Periana-Pillai

Lester R Melby

Roy A Periana

Novel compositions of homopolymers and copolymers containing an olefinic polymerizable end group wherein the monomeric units comprise methacrylate, acrylate, acrylic acid, styrene, vinyl esters, acrylonitrile, methacrylonitrile, vinyl halides, vinylidene halides, substituted butadienes, ethylene-sulfonic acid derivatives, acrylamide derivatives, methacrylamide derivatives, and other monomers, and mixtures thereof are disclosed.

Novel macromonomer compositions

Free radical polymerization processes employing cobalt(II) chelates of vicinal iminohydroxyimino- and dihydroxyiminoalkanes, N,N'-bis(salicylidene)ethylenediamines and porphyrins as catalytic chain transfer agents, in admixture with certain Lewis bases, for controlling the molecular weight of the homopolymers and copolymers produced.

Molecular weight control in free radical polymerizations

A process for controlling the molecular weight of polymer and copolymer in radical initiated polymerization with a bimetallic catalytic chain transfer agent is disclosed.

Bimetallic catalytic chain transfer agents for molecular weight control

Process for functionalizing saturated hydrocarbons comprising:

Process for functionalizing alkanes

A process for preparing low molecular weight methacrylate polymer and copolymer with a pentacyanocobaltate(II) catalytic chain transfer agent is disclosed.

Pentacyanocobaltate(II) catalytic chain transfer agents for molecular

Free radical polymerization processes employing cobalt(II) chelates of vicinal iminohydroxyimino compounds, dihydroxyimino compounds, diazadihydroxyiminodialkyldecadienes and diazadihydroxyiminodialkylundecadienes as catalytic chain transfer agents for controlling the molecular weight of the homopolymers and copolymers produced.

Cobalt(II) chelates as chain transfer agents in free radical

Free radical polymerization processes employing cobalt(II) chelates of vicinal iminohydroxyimino compounds, diazadihydroxyiminodialkyldecadienes and -undecadienes, tetraazatetraalkylcyclotetradecatetraenes and -dodecatetraenes, N,N'-bis(salicylidene)ethylenediamines and dialkyldiazadioxodialkyldodecadienes and -tridecadienes as catalytic chain transfer agents for controlling the molecular weight of the homopolymers and copolymers produced.

Cobalt (II) chelates as chain transfer agents in free radical

Process for functionalizing saturated hydrocarbons selectively in the terminal position comprising:

Growing community of inventors

Wilmington, DE, United States of America

Andrew H Janowicz