Ciba-geigy Corporation

American Cyanamid Company

Peter J Schirmann

Andrew Mar

Ramanathan Ravichandran

Werner J Blank

James Peter Galbo

Roland A Winter

Raymond R Seltzer

Girish G Parekh

Susan Mancini Cady

Leslie R Gatechair

Roger F Malherbe

James L Hyun

Rudolf A Behrens

Gary M Blumenstein

1-Hydrocarbyloxy substituted hindered amine compounds which also contain a reactive functional group such as hydroxy, amino, oxirane or carboxyl can be chemically attached to selected polymer substrates by condensation reactions to give polymers containing a chemically-bonded, non-migrating stabilizer having excellent stabilization efficacy for protecting said polymer substrate from the adverse effects of actinic light.

Non-migrating 1-hydrocarbyloxy hindered amine derivatives as polymer

A process for stabilizing an ethylenically unsaturated monomer or oligomer from premature polymerization is disclosed whereby a stabilizing amount of an N-hydroxy substituted hindered amine is added to said polymerizable monomer or oligomer. The ethylenically unsaturated monomer or oligomer encompass vinyl monomers or oligomers bearing at least one polymerizable moiety. The N-hydroxy substituted hindered amine inhibits premature polymerization in the liquid and/or vapor phase.

Process for stabilizing ethylenically unsaturated compounds and

Compounds which contain peroxide linkages as well as a hindered amine light stabilizer moiety of low basicity function as free radical polymerization initiators and provide a polymer containing a hindered amine stabilizer chemically bonded to said polymer. The low basicity of the instant compounds prevents interaction with acid catalysts used in some polymerization systems.

Peroxide free radical initiators containing hindered amine moieties with

N-OR.sub.1 substituted hindered amine light stabilizers impart outstanding stabilization properties to acid catalyzed thermoset coating compositions providing enhanced resistance against the deleterious effects of light, moisture or oxygen without inhibition of cure.

Stabilization of acid catalyzed thermoset resins

Ethylenically unsaturated compounds containing 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine moieties represent reactable stabilizers which may be homopolymerized or copolymerized with other ethylenically saturated monomers to form non-migrating, light stabilizers which are very effective in stabilizing polyolefins and other polymer substrates against the deleterious effects of actinic light.

Ethylenically unsaturated compounds containing

Ethylenically unsaturated compounds containing 1-hydroxycarbyloxy-2,2,6,6-tetramethylpiperidine moieties represent reactable stabilizers which may be homopolymerized or copolymerized with other ethylenically saturated monomers to form non-migrating, light stabilizers which are very effective in stabilizing polyolefins and other polymer substrates against the deleterious effects of actinic light.

Ethylenically unsaturated monomers containing activated ester groups are used to make polymers and copolymers which are useful in coatings, adhesives and moldings.

Activated ester monomers and polymers

Reaction of an acrylamide with an alkyl glyoxylate or an alkyl glyoxylate hemiacetal provides an alkyl acrylamidoglycolate which can readily be alkylated to provide the alkyl ether thereof.

Growing community of inventors

Fairfield, CT, United States of America

Peter J Schirmann