3m Innovative Properties Company

Vijay Patel

Ranjith Divigalpitiya

David A Kanno

Gabriella Miholics

Pei-Jung Chen

Matthew T Scholz

Daniel W Wuerch

An adhesive membrane comprises (a) a conductor; (b) a composite material comprising conductive particles at least partially embedded in an electrically insulating layer disposed on the conductor; and (c) a pressure sensitive adhesive layer disposed on the composite material, the conductive particles being capable of electrically connecting the conductor to a second conductor under application of sufficient pressure therebetween, the conductive particles having no relative orientation and being disposed so that substantially all electrical connections made between the conductor and a second conductor will be in the z direction, and the combined thickness of the electrically insulating layer and the pressure sensitive adhesive layer being greater than the size of the largest conductive particle when the largest conductive particle is measured in the z direction.

Adhesive membrane for force switches and sensors

A force sensing membrane comprises (a) a first conductor that is movable toward a second conductor; (b) a second conductor; and (c) a composite material disposed between the first and second conductors for electrically connecting the first and second conductors under application of sufficient pressure therebetween; and (d) means for measuring dynamic electrical response across the force sensing membrane, the composite material comprising conductive particles at least partially embedded in an elastomeric layer, the conductive particles having no relative orientation and being disposed so that substantially all electrical connections made between the first and second conductors are in the z direction, and the elastomeric layer being capable of returning to substantially its original dimensions on release of pressure.

Force sensing membrane

The invention provides contact adhesives comprising an adhesive component comprising polychloroprene rubber, and an internal coagulant. The contact adhesives may also contain a resinous component selected from the group consisting of ethylene-vinyl acetate copolymer, polyvinyl acetate homopolymer, polyvinyl acetate copolymer, acrylic copolymer, polyvinyl acetate acrylic copolymer, and combinations thereof. The internal coagulant may be hygroscopic salt, amino acid, or a combination thereof.

One-part storage-stable water-based contact adhesive composition with an internal coagulant

The invention relates to a storage stable, fast-setting, aqueous contact adhesive composition comprising an adhesive component and boric acid. The composition can further include an amino acid, such as glycine. The composition finds particularly preferred use for bonding substrates, such as foam, in the furniture industry.

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London, Canada

Vijay Patel