Henkel Ag & Company, Kgaa

Henkel IP Holding Gmbh

Henkel Corporation

Henkel US IP Lcc

Brunob Ii Bv

Yayun Liu

John Gregory Woods

Bahram Issari

Jiangbo Ouyang

Shengqian Kong

Wenhua Zhang

Allison Yue Xiao

Stephen Hynes

Chunyu Sun

Charles Willard Paul

Andrea Keys Eodice

Li Kang

Judith K Whaley

Susanne Koxholt

Dual-cure compositions for use in high temperature adhesive applications, and particularly for temporarily adhesively attaching one substrate to another substrate, are provided. These dual-cure adhesives are silicone-based compositions that can be B-staged by exposure UV radiation to provide initial green strength, followed by a C-stage cure to give adhesives that can survive high temperature processes above 200° C., especially above 300° C., yet easy to debond afterwards to allow separation of the top and bottom substrates.

Debondable compositions

Disclosed is a highly fluorinated silicone resin and a method for making the same. The silicone resin includes M, T, optionally D and optionally Q type monomers and is crosslinkable. The resin has a fluorine content of at least 55 weight percent and a very low refractive index of less than 1.4. The resin is formed in a one step process and requires use of very specific solvents. Preferably the resin includes a first T type monomer having a fluoroalkane group to provide the fluorine to the resin. Preferably the resin includes a second T type monomer having a (meth)acryloyl function to enable cross-linking. The resin forms an effective liquid optically clear adhesive. The resin can be further combined with highly fluorinated (meth)acrylate monomers or perfluoro polyethers to provide even lower refractive indexes and improved adhesive properties.

Reactive resins and formulations for low refractive index and low dielectric constant applications

The present invention relates to one-component UV and thermal curable temporary adhesives for use in high temperature applications, and particularly to adhesives for the temporary attachment of one substrate to another substrate, the adhesives comprising (i) the partial hydrosilylation reaction product of the reaction between the vinyl groups on 1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane and the terminal Si&#x2014;H hydrogens on a silane or siloxane having terminal Si&#x2014;H hydrogens, and (ii) a photo and/or thermal radical cure initiator. Also encompassed are assemblies including such an adhesive and methods of using the adhesives.

1K UV and thermal cure high temperature debondable adhesive

The invention provides hot melt adhesives that comprise a templating agent, a polymer and a wax. It has been discovered that hot melt adhesives with an effective amount of templating agent have improved heat resistance than adhesives. The adhesives find particular use as case, carton, and tray forming, and as sealing adhesives, including heat sealing applications, for example in the packaging of cereals, cracker and beer products.

Adhesive compositions and use thereof

A curable composition, suitable for underfill encapsulant, has two distinct phase domains after cure, a continuous phase and a discontinuous phase, in which one phase has a modulus value of 2 GPa or greater, and the second phase has a modulus value at least 1 Gpa less than the first phase, characterized in that the phases are generated in situ as the composition cures.

Phase separated curable compositions

Growing community of inventors

Franklin Park, NJ, United States of America

Yayun Liu