Henkel Corporation

Henkel US IP Lcc

Michael Levandoski

Richard Corrao

Hsien-Kun Chu

Robert P Cross

Alfred A DeCato

Bahram Issari

Chiu-Sing Lin

Christopher Verosky

Scott R Tremblay

Sean P McGrath

Jennifer Lynn Smith McCarthy

Robert Michael Sarazin

Heath L Salvati

Baharam Issari

The present invention relates to two-part moisture curing compositions useful for adhesive, sealing, potting and other applications. In particular, the present invention relates to two-part room temperature vulcanizing (RTV) compositions which include in one of the parts a moisture curing organic polymer which is substantially free or does not contain siloxane bonds in its backbone.

Curable silicone compositions containing reactive non-siloxane-containing resins

A method of assembling an appliance using a curable silicone composition optionally containing spacer beads of an appropriate size to permit adhesively joining the appliance parts in a desirably spaced-apart arrangement.

Compositions and processes for assembling appliances

This application relates to polysiloxane compositions grafted with improved heat curable, moisture curable, or heat/moisture curable groups. In particular, the polysiloxane compositions have reactive groups on the terminal or pendent areas of the siloxane backbone, which once reacted provide improved heat and/or moisture curable polysiloxanes.

Polysiloxanes grafted with radically curable and/or moisture curable groups

A two-part moisture-curing composition having as a first part water and an hydroxy-terminated diorganosiloxane; and a second part which includes a reactive silicone, at least one end-capping silane which includes one or more enoxy groups, at least one end-capping catalyst and at least one moisture cure catalyst. Enhanced and controlled cure speed is obtained by these compositions.

Low ratio RTV compositions and methods for making same

The present invention relates to curable silicone compositions which include a fluorescent agent for detection purposes and which have a cure system which enables the silicone compositions to possess improved depth of cure. The silicone compositions are photocurable, and may also be moisture or heat curable.

Curable silicone compositions incorporating a fluorescent detection system

A method for forming a disassembleable fuel cell assembly includes the steps of (a) forming at least two fuel cell assemblies, each of the fuel cells assemblies formed by a method including the steps of (i) providing a membrane electrode assemble and two bipolar plates; (ii) applying a first portion of a curable silicone composition to internal mating surfaces of at least one of the bipolar plates; (iii) aligning the membrane electrode assembly between the two bipolar plates; (iv) compressing the bipolar so that the first portion of the silicone composition abuts the adjacent internal mating surface of the adjacent bipolar plate; (v) curing the first portion of the silicone composition to adhesively bond the adjacent internal mating surfaces; and (vi) further compressing the bipolar plates to compress the cured first portion of the silicone composition to mechanically seal the adjacent mating surfaces against surface imperfections and/or leak paths; (vii) applying a second portion of the curable silicone composition to the outermost mating surfaces of at least one of the bipolar plates; (viii) aligning an additional bipolar plate with the outermost mating surfaces; (ix) curing the second portion of the curable silicone composition without adhering to the mating surface of the additional bipolar plate; and (b) aligning the at least two fuel cell assemblies so that the externally disposed cured silicone composition abuts both assemblies; and (c) compressing the fuel cell assemblies to provide a repairable seal disposed between the two fuel cell assemblies.

Method and composition for bonding and sealing fuel cell components

The present invention provides novel 'hybrid' silyl-terminated polymers that contain at least two different reactive end-capping groups. The 'hybrid' silyl-terminated polymers of the present invention are produced by a novel single multi-step end-capping reaction of at least one silanol-terminated polymer with at least two silanes in the presence of a catalyst.

Hybrid end-capped reactive silicone polymers

A photocurable silicone composition which includes an additive which provides cure-through-volume of the overall composition. The additive is desirably a curable amino silyl-terminated polyorganosiloxane.

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Bristol, CT, United States of America

Michael Levandoski