Abstract: A method of bonding first and second substrates to each other the substrates having respective bonding surfaces to be bonded together, comprising: (a) applying to the bonding surface of at least the first substrate a redox-active metal catalyst primer to form a primed surface; (b) activating the primed bonding surface of the first substrate by exposing the primed bonding surface to actinic radiation; (c) applying, to the so activated bonding surface of the first substrate, and/or or to the bonding surface of the second substrate, a UV curable anaerobic adhesive; (d) mating the bonding surfaces together with the UV curable anaerobic adhesive therebetween; and (e) exposing the UV curable anaerobic adhesive between the mated surfaces to actinic UV radiation. The method is particularly suited for obtaining bonds with good tensile shear strength with electrical substrates coated with an insulating varnish.

Abstract: The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants. The cure accelerators may be embraced generally within the structure below where X is CH2, O, S, NR?, CR?R?? or C?O; R is hydrogen or (meth)acryl; R6 is hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; and A and A1 are each individually selected from hydrogen or taken together create a ring structure of 5 to 12 total ring atoms, wherein the ring structure may be cycloaliphatic, cycloheteroaliphatic or aromatic or combinations thereof with or without substitution by one or more hydroxyl or (meth)acryl groups; and n is 0 or 1, provided that when R is hydrogen, A and A? cannot both be hydrogen or taken together cannot be naphthyl.

Abstract: A curative free sealant composition for sealing joints between male and female parts, the sealant composition comprising a solid resin component, a solid (meth)acrylate polyurethane component, and an ethoxylated bisphenol-A (meth)acrylate component.

Abstract: The present invention relates to curable cyanoacrylate compositions that are suitable for use as adhesive compositions, such as for example in a tape form.

Abstract: An anaerobically curable composition comprising: a liquid anaerobically curable component; a solid anaerobically curable component; a solid polyether polyvinyl butyral resin; and a curing component for curing the anaerobically curable components. Advantageously, the compositions of the invention are substantially solid and may be used as threadlockers.

Abstract: The present invention relates to a curable two-step and two-part adhesive composition comprising a first part comprising: at least one (meth)acrylate monomer comprising OH-group; an urethane (meth)acrylate oligomer; a rubber; an adhesion promoter; and a radical initiator; and a second part comprising: at least one (meth)acrylate monomer comprising OH-group, which can be same or different than the at least one (meth)acrylate monomer comprising OH-group in the first part; a nitrile butadiene rubber; and a reducing agent. The composition can be used as a structural adhesive, for example in speaker magnet bonding, e-motor structural bonding and metal component bonding.

Abstract: Disclosed herein are anaerobically curable compositions comprising one or more polymerizable (meth)acrylate ester monomers, a redox-active metal catalyst, saccharin or a saccharin derivative, a peroxide, and a benzoyl functionalized compound, wherein the composition does not gel after about 24 hours of storage at room temperature and methods of adhering two substrates using the anaerobically curable compositions.

Abstract: An anaerobically curable composition comprising a hydroxy-functionalized mono(meth)acrylate compound, an aromatic mono(meth)acrylate compound which is not the same as the hydroxy-functionalized mono(meth)acrylate compound, a (meth)acrylate functionalised polyurethane resin, and an anaerobic cure inducing component.

Abstract: The present invention relates to an anaerobic curable composition comprising a) a (meth) acrylate component; b) a first curing agent; c) a second curing agent; and d) a cure accelerator comprising 2-(N-ethylanilino) ethanol and/or 1,2,3,4-tetrahydro benzo(H) quinoline-3-ol. The anaerobic curable composition according to present invention can be used in adhesives, sealants, thread lockers and retainers.

Abstract: A method of bonding first and second substrates to each other the substrates having respective bonding surfaces to be bonded together, comprising: (a) applying to the bonding surface of at least the first substrate a redox-active metal catalyst primer to form a primed surface; (b) activating the primed bonding surface of the first substrate by exposing the primed bonding surface to actinic radiation; (c) applying, to the so activated bonding surface of the first substrate, and/or or to the bonding surface of the second substrate, a UV curable anaerobic adhesive; (d) mating the bonding surfaces together with the UV curable anaerobic adhesive therebetween; and (e) exposing the UV curable anaerobic adhesive between the mated surfaces to actinic UV radiation. The method is particularly suited for obtaining bonds with good tensile shear strength with electrical substrates coated with an insulating varnish.

Abstract: An anaerobically curable composition comprising: a liquid anaerobically curable component; a solid anaerobically curable component; a solid polyether thermoplastic polyurethane resin; and a curing component for curing the anaerobically curable components. Advantageously, the compositions of the invention are substantially solid and may be used as threadlockers.

Abstract: The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants. The cure accelerators may be embraced generally within the structure below where X is CH2, O, S, NR?, CR?R?? or C?O; R is hydrogen or (meth)acryl; R6 is hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; and A and A1 are each individually selected from hydrogen or taken together create a ring structure of 5 to 12 total ring atoms, wherein the ring structure may be cycloaliphatic, cycloheteroaliphatic or aromatic or combinations thereof with or without substitution by one or more hydroxyl or (meth)acryl groups; and n is 0 or 1, provided that when R is hydrogen, A and A? cannot both be hydrogen or taken together cannot be naphthyl.

Abstract: An anaerobically curable composition comprising: (a) a non-encapsulated liquid anaerobically curable monomer forming a liquid phase; (b) a solid component dispersed as a solid phase within the liquid phase formed by the non-encapsulated liquid anaerobically curable monomer; wherein the solid component has (meth)acrylate functionality and: (i) is in particulate form with the particles having a particle size in the range from about 80 ?m to about 300 ?m; and (ii) has a melting temperature of from about 50° C. to about 90° C.; and (c) a curing component for curing the anaerobically curable composition within the liquid phase. The anaerobically curable composition can easily be coated onto substrates such as threaded fasteners or other parts in its flowable form and then converted to anaerobically curable composition in solid form.

Abstract: 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 CH2, O, S, NR4, CR5R6 or C?O, wherein R4, R5, and R6 are 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; R1, R2, and R3 are each individually selected from hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; R7 is hydrogen or CHR8R9, where R8 and R9 are 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.

Abstract: A curative free sealant composition for sealing joints between male and female parts, the sealant composition comprising a solid resin component, a solid (meth)acrylate polyurethane component, and an ethoxylated bisphenol-A (meth)acrylate component.

Abstract: An anaerobically curable composition comprising a hydroxy-functionalized mono(meth)acrylate compound, an aromatic mono(meth)acrylate compound which is not the same as the hydroxy-functionalized mono(meth)acrylate compound, a (meth)acrylate functionalised polyurethane resin, and an anaerobic cure inducing component.

Abstract: Disclosed herein are anaerobically curable compositions comprising one or more polymerizable (meth)acrylate ester monomers, a redox-active metal catalyst, saccharin or a saccharin derivative, a peroxide, and a benzoyl functionalized compound, wherein the composition does not gel after about 24 hours of storage at room temperature and methods of adhering two substrates using the anaerobically curable compositions.

Abstract: 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 CH2, O, S, NR4, CR5R6 or C?O; R is one or more of hydrogen, alkyl, alkenyl, alkynl, hydroxyalkyl, hydroxyalkenyl, or hydroxyalkynl; R1-R6 are each individually selected from hydrogen, halogen, amino, carboxyl, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl, or alkaryl; R7 is hydrogen or CHR8R9, where R8 and R9 are 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.