Henkel Ag & Company, Kgaa

Henkel Kommanditgesellschaft Auf Aktien

Gregory A Ferguson

Rajat K Agarwal

Michael S Puckett

Olaf Lammerschop

Jeng-Li Liang

Xaver Muenz

Rainer Schoenfeld

Bernd Mayer

Jeffrey T Pachl

Frank Dittrich

Don K Howard

Vettithara C Koshy

Gradie C Rorie

Christian Scheffner

Rajat K Agarawal

Thomas Leeb

Xaver Münz

Michael Puckett

Sprayable low-viscosity compositions have improved acoustic damping properties through the addition to the composition of a sterically hindered phenol, present in an amount from 9% to 18% by weight of the composition. In other embodiments, the sterically hindered phenol will have a melting point within the range from 60&#xb0; C. to 250&#xb0; C. and a molecular weight of 300 g/mol or less (but not 0).

Liquid rubber damping composition

A sealant article useful for sealing a substrate surface having a first surface and a second surface is provided. The first surface comprises a deformable composition that is capable of conforming to a substrate surface when subjected to heat and/or pressure. The second surface of the sealant article has been at least partially cured by exposing said surface to an amount of radiation effective to induce at least partial curing of the second surface of the sealant article. Prior to such curing, the second surface also is comprised of the deformable composition. Such at least partial curing is effective to render the second surface less deformable than the first surface.

Sealant articles and compositions useful therein

This invention relates to compositions useful as adhesives and more particularly to the preparation of epoxy-based adhesive composition with improved impact resistance and good adhesion to oily metal substrates.

Curable epoxy resin-based adhesive compositions

Expandable, thermally curable compositions containing at least one epoxy resin, at least one polyester, at least one blowing agent, and at least one curing agent are useful as adhesives and structural reinforcement materials. When foamed and adhered to a metal substrate surface, such polyester-modified foamable compositions can exhibit improved adhesion to the substrate surface after exposure to a corrosive environment, as compared to compositions that do not contain polyester. Furthermore, these compositions can exhibit improved flow properties in the uncured state at temperatures between 50 and 100&#xb0; C. They are granulatable, with the granules produced thereby having non-tacky surfaces at room temperature and being capable of being readily processed into molded objects by injection molding processes.

Foamable compositions based on epoxy resins and polyesters

Expandable thermosettable compositions containing at least one epoxy resin, at least one finely divided thermoplastic polymer powder, at least one blowing agent, at least one curing agent, and at least one filler are suitable for the production of thermosetting laminated bodies with a tacky surface. These laminated bodies can be produced and handled in a simple manner and are suitable for stiffening and reinforcing flat structural components, in particular vehicle body structural components, such as vehicle body frames, doors, trunk lids, engine hoods and/or roof components in automobile construction. The expandable thermosettable compositions are also suitable for the production of thermosetting, thermally expandable shaped articles for reinforcing hollow structural members by the injection molding process. In preferred embodiments, the composition is injected onto a metallic or thermoplastic carrier. These thermally expandable shaped articles are especially useful in the production of automobiles and other vehicles to maintain or increase the strength of structural members such as rockers, pillars, radiator support beams, doors, reinforcing beams, and the like.

Expandable epoxy resin-based systems modified with thermoplastic polymers

The present invention is directed to a high expansion two-component structural foam that expands to about twice its original volume while maintaining good cell structure. The foam of the present invention is based on epoxy resins. Each component of the foam system exhibits storage stability, e.g., no phase separation, yet reacts when combined to provide a cured material having exceptionally good compression strength and modulus. The blowing system used to prepare the foam produces a foam which is uniform in appearance and is essentially free of the large voids often found in conventional two-part thermosettable compositions, even when a relatively large mass is utilized.

High expansion two-component structural foam

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Harrison Township, MI, United States of America

Gregory A Ferguson