Henkel IP Holding Gmbh

Henkel Ag & Company, Kgaa

Henkel Corporation

Henkel Ireland Limited

Loctite (r&d) Limited

Henkel US IP Lcc

David P Birkett

Martin Wyer

Anthony Francis Jacobine

Andrew D Messana

David Mullen

Philip T Klemarczyk

Brendan J Kneafsey

Joel D Schall

Lynnette M Hurlburt

Shabbir Attarwala

David J Farrell

David P Dworak

Qinyan Zhu

Smita M Shah

Jiangbo Ouyang

Darren Nolan

Nigel Fay

Peter Wrobel

Jianping Liu

Ciaran Mcardle

Ruth A Kelly

David Condron

Ruairi O'Kane

Susan Warren

Harry J Woolfson

Hanns R Misiak

Niamh Bergin

Fergal W Tierney

Ronan Crowley

Ory Hajatpour

Pat O'Dwyer

Lee McGarry

Greg Clarke

Hilary Mongey

Kieran Mulcahy

Ruairi O'kane

Lee Mcgarry

Brendan Kneafsey

The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants. The cure accelerators are embraced within where X is CH, O, S, NR, CRRor C&#x2550;O, wherein R, R, and Rare each individually selected from hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; R is one or more of hydrogen, alkyl, alkenyl, alkynl, hydroxyalkyl, hydroxyalkenyl, or hydroxyalkynl; R, R, and Rare each individually selected from hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; Ris hydrogen or CHRR, where Rand Rare each individually selected from hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; and n is 0 or 1. A particularly desirable example is 1,2,3,4-tetrahydrobenzo-h-quinolin-3-ol.

Cure accelerators for anaerobic curable compositions

Phenylhydrazine/anhydride adducts and anaerobic curable compositions using these adducts are provided. The compositions are particularly useful as adhesives and sealants.

Phenylhydrazine/anhydride adducts and anaerobic curable compositions using same

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 anaerobically curable (meth)acrylate compositions, and stabilizers for same.

Anaerobically curable compositions

Cure accelerators for anaerobic curable compositions, such as adhesives and sealants, are provided, and which are defined with reference to the aromatic amides shown in structure I where R and R&#x2033; are each independently Calkyl, and R' is H or Calkyl or R and R&#x2032; together may form a four to seven membered ring fused to the benzene ring, and where R&#x2032;&#x2033; is optional, but when R&#x2032;&#x2033; is present, R&#x2032;&#x2033; is halogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, hydroxyalkenyl, alkoxy, amino, alkylene- or alkenylene-ether, alkylene (meth)acrylate, carbonyl, carboxyl, nitroso, sulfonate, hydroxyl or haloalkyl.

The present invention relates to novolac vinyl esters useful as thermal resistance conferring components for anaerobic curable compositions, and anaerobic curable compositions having such novolac vinyl esters. The compositions are particularly useful as adhesives and sealants.

Anaerobic curable compositions having novolac vinyl esters

The present invention relates to anaerobically curable compositions containing a benzoxazine component and which demonstrates resistance to elevated temperature conditions and/or accelerated cure speed.

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

Compositions comprising at least one copper salt, and an aromatic nitroso compound precursor are provided. The copper salt may oxidize the aromatic nitroso compound precursor to provide an aromatic nitroso compound. The compositions may find utility in polymer to metal, in particular, rubber to metal bonding. The aromatic nitroso compound precursor may be a nitrosobenzene/dinitrosobenzene precursor. The nitrosobenzene or dinitrosobenzene precursor may be at least one of a quinone oxime or a quinone dioxime.

Oxidising agents for elastomer bonding compositions

Provided is a complex of hydrogen peroxide and at least one compound represented by Formula I: wherein X is: &#x2014;C(R), &#x2014;C&#x2261;C(R), &#x2014;O(R), &#x2014;N(R), or &#x2014;S(R); and R, R, and Rare each independently selected from H, alkyl, alkenyl, alkynyl, aralkyl, aryl, heteroaryl heteroarylalkyl, heterocyclyl, and cycloalkyl, or Rand an Rare optionally taken together to form an alicyclic ring. Also provided are anaerobic cure systems and curable compositions employing the complexes described herein.

Hydrogen peroxide complexes and their use in the cure system of anaerobic adhesives

The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants.

The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants. The cure accelerators are constructed as urethane/urea/thiourethane (meth)acrylate resins from diols and include a unit embraced within structure where X is Calkyl, Calkenyl, or Calkaryl, any of which may be interrupted by one or more hereto atoms, and which are functionalized by at least one and preferably at least two groups selected from &#x2014;OH, &#x2014;NHor &#x2014;SH and z is 1-3.

The present invention relates to anaerobic cure systems containing enamines, their use as cure accelerators for anaerobic adhesive compositions, and anaerobic adhesive compositions including such enamine cure accelerators.

Cure accelerators for anaerobic adhesive compositions

This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, certain accelerators to improve fixture speeds on certain substrates.

Growing community of inventors

Kildare, Ireland

David P Birkett