Henkel IP Holding Gmbh

Henkel Corporation

Henkel Ag & Company, Kgaa

Henkel US IP Lcc

Joel D Schall

Anthony Francis Jacobine

Andrew D Messana

John Gregory Woods

Lynnette M Hurlburt

David P Birkett

David Mullen

Martin Wyer

Sean M Burdzy

Philip T Klemarczyk

Alfred A DeCato

Eric Hernandez Edo

Steven Thomas Nakos

Mark M Konarski

David M Glaser

David P Dworak

Smita M Shah

Jiangbo Ouyang

Jianping Liu

Richard O Angus, Jr

Roderick Coffey

Andrus Maandi

Mary Palliardi

Alfred A Decato

James E Lionburger

This invention relates to photocurable electron deficient olefin-containing compositions, such as those containing certain 2-cyanoacrylates, 2-cyanopentadienoates, methylidene malonates, and vinylidine cyanide, and photolatent bases. When exposed to radiation in the electromagnetic spectrum, the compositions show a delay cure property.

Photocurable electron deficient olefin-containing compositions

Benzoylthiourea or benzoylthiourethane derivatives as cure accelerators for two part curable compositions are provided.

Accelerators for two part curable compositions

The present invention relates to anaerobic curable compositions, such as adhesives and sealants, containing blocked acrylic acid compounds. The blocked acrylic acid compounds are labile (meth)acrylic acid compounds having an acetal linkage, which cleaves to release (meth)acrylic acid during anaerobic cure. In this way, the block acrylic acid compounds acts as an adhesion promoter thereby promoting adhesion to various substrates.

Anaerobic curable compositions containing blocked (meth)acrylic acid compounds

Anaerobic curable compositions, such as adhesives and sealants, containing blocked carboxylic acid compounds are provided. The blocked carboxylic acid compounds are labile carboxylic acid compounds having acetal linkages, which cleave to release the underlying carboxylic acid during anaerobic cure.

Anaerobic curable compositions containing blocked (meth)acrylate acid compounds

Anaerobic curable compositions, such as adhesives and sealants, containing blocked dicarboxylic acid compounds are provided. The blocked dicarboxylic acid compounds are labile dicarboxylic acid compounds having two acetal linkages, which cleave to release the underlying dicarboxylic acid during anaerobic cure. In this way, the dicarboxylic acid can participate in the anaerobic cure of the composition when the blocking group is released.

Anaerobic curable compositions containing blocked dicarboxylic acid compounds

The present invention is directed to compositions useful for maintaining sealing force over time while under compression in compressive gaskets. Additionally, methods of preparing and using the sealing compositions and improving sealing performance using such compositions are provided.

(Meth)acrylate-functional polyacrylate resins with narrow but bimodal molecular weight distributions

Benzoylthiourea or benzoylthiourethane derivatives as cure accelerators in primers for two step adhesive systems are provided.

Accelerators for two step adhesive systems

Benzoylthiourea or benzoylthiourethane derivatives as cure accelerators for curable compositions are provided.

Accelerators for curable compositions

The present invention relates to thiol-ene curing compositions, which cure upon exposure to ultraviolet (UV) light and/or heat. The compositions include components having alkenyl (or 'ene') functionality and components having thiol functionality, which undergo thiol-ene curing. The compositions also include a cure system. More specifically, in some embodiments, the curable compositions include a vinyl polymer bearing alkenyl or thiol terminal functional group(s) and a cross-linking agent having the opposing functionality, i.e., thiol cross-linking agents with alkenyl-terminated vinyl polymers and vinyl cross-linking agents with thiol-terminated vinyl polymers. Also provided are methods of making and using the compositions, such as for sealants for in-place gasketing applications.

Thiol-ene cured oil-resistant polyacrylate sealants for in-place gasketing applications

The present invention relates to multi-functional polymeric resin blends which have a defined average molecular weight distribution. Additionally each polymeric component of the blend has a polydispersity of from about 1.01 to about 2.50. The average functionality of the blend is from about 1.8 to about 4.0. More particularly, the present invention relates to poly(meth)acrylates having three or more functional groups. These highly functionalized resin blends are desirably prepared using controlled free radical polymerization techniques, such as single electron transfer living radical polymerization (SET-LRP) processes to produce a variety of blended resin systems which have tailored and enhanced properties.

Highly functionalized resin blends

Benzoylthiourea or benzoylthiourethane derivatives, together with oxidants and a source of protons, acting as cure accelerators for two part curable compositions are provided.

Accelerator/oxidant/proton source combinations for two part curable compositions

A process for preparing moisture curable compounds and moisture curable compositions prepared from the product of that process is provided.

Moisture curable polyacrylates

A process of controlled radical polymerization, and products made therefrom is disclosed. The process includes performing controlled radical polymerization on a composition comprising a polymerizable compound, an initiator, a ligand, and a catalyst; permitting the controlled radical polymerization reaction to proceed until a desired level of conversion is attained, but prior to complete conversion to obtain an intermediate polymerization product; and further reacting the intermediate polymerization product with a reactant having a cluster of multiple reactive sites to provide a polymer reaction product having a cluster of pendent multiple reactive sites adjacent to said terminal ends of said polymer reaction product.

Curable compositions with moisture-curable functionality clusters near the chain ends

The present invention relates to anaerobically curable compositions based on (meth)acrylate-functionalized poly(acrylate) polymers.

Anaerobically curable compositions

The present invention is directed to reaction products prepared from at least one Michael addition donor material including two or more active methylene hydrogens; and at least one material capable of reacting with a Michael addition donor, the material having one Michael addition acceptor and at least one functional group selected from the group consisting of hydroxy, hydroxyalkyl, vinyl ether, amino, aminoalkyl, carboxy, carboxyalkyl, cyano, and cyanoalkyl groups; or reaction products prepared from (a) at least one Michael addition donor material comprising at least one Michael Addition donor group selected from the group consisting of cyano functional groups and phosphono functional groups; and (b) at least one material capable of reacting with the at least one Michael addition donor group, the material having at least one Michael addition acceptor, wherein the above reaction products are capable of forming free radicals upon exposure to actinic radiation; as well as compositions, and processes for making and using the same.

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Hamden, CT, United States of America

Joel D Schall