3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Peter O Rekow

David L Braun

Thomas W Holmquist-Brown

Jonathan E Janoski

Kathleen S Shafer

Thomas Q Chastek

Gregory Yuschak

Naiyong Jing

Daniel E Meyer

Vaughn B Grannis

Anthony F Schultz

Carla S Thomas

Kelly A Volp

Cyrus A Anderson

Michael C Martin

Douglas L Elmore

Bradford L Ryland

A curable composition comprising: a hydroxy-functional or ether-functional (meth)acrylate copolymer, an epoxy resin; water; a photocatalyst, and optionally a polyvinyl acetal polymer and/or a film-forming polymer. When cured, provides structural bonding adhesives that are curable under high humidity conditions.

Acrylic-epoxy adhesive composition

An adhesive article is described comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications and is designed to fail cohesively.

Multilayer adhesive article

Methods for bonding a polymer surface (e.g., a fluoropolymer surface) to a substrate, including foam tape substrates, and articles produced thereby. The methods can include using a primer composition having an amidine catalyst in combination with an amino-substituted organosilane ester.

Catalyzing amino-substituted organosilane ester primers

A respirator () that includes a face piece () and a cartridge receiving structure () located on the face piece (). The face piece () is sized to fit snugly over the nose and mouth of a person, and the filter cartridge () is capable of being manually snapped into engagement with the cartridge receiving structure (). The snap-fit can be instantaneously obtained without rotational movement of the filter cartridge (), simply by pressing the filter cartridge () against the receiving structure ().

Respirator having snap-fit filter cartridge

A respirator (,) includes a filter cartridge (,) that has a housing (,) and a bonded sorbent filter element (,). Housing (,) includes a sleeve (,) that has an inner surface (,) and a folded edge (,). The filter element (,) includes a bonded sorbent filter element (,) that is pressed against the sleeve's inner surface (,) and that is held in the sleeve (,) by the folded edge (,).

Respirator and filter cartridge

A respirator,includes a compressible filter element,, a filter element retainer,, and a face piece,. The respirator is unique in that the filter element,compresses when installed in the retainer,, allowing a friction fit to be maintained between the filter element,and retainer,. The friction fit enables the filter element,to be readily replaced when its service life has expired.

Respirator having a compressible press fir filter element

A respirator (10) that includes a face piece (14) and a cartridge receiving structure (22) located on the face piece (14). The face piece (14) is sized to fit snugly over the nose and mouth of a person, and the filter cartridge (12) is capable of being manually snapped into engagement with the cartridge receiving structure (22). The snap-fit can be instantaneously obtained without rotational movement of the filter cartridge (12), simply by pressing the filter cartridge (12) against the receiving structure (22).

Shaped porous filtering structures of substantially uniform thickness and density particularly suited for filtration of gases and vapors comprising spaced adsorbent granules unified into a solid, self-sustaining, unitary, impact-resistant body by adherent binder particles, respirators incorporating such structures as the gas and vapor filtration elements and methods for making the shaped porous filtering structures are disclosed.

Bonded adsorbent structures and respirators incorporating same

Elastomeric nonwoven fibrous fluid filter media for removal of particulate contaminants from the fluid are provided. The filter media comprises thermoplastic elastomeric melt-blown small diameter fibers, the small diameter fibers being randomly arrayed, the filter media having substantially uniform stretch properties in all directions and whose filtration properties are independent of filter media elongations sufficient to increase the filter media surface area at least about 10 percent. The filter media is particularly useful as a prefilter on respirators.

Elastomeric filtration materials

Shaped porous filtering structures of substantially uniform thickness and density particularly suited for filtration of gases and vapors comprising spaced adsorbent granules unified into a solid, self-sustaining, unitary, impact-resistant body by adherent binder particles. Respirators incorporating such structures as the gas and vapor filtration elements and methods for making the shaped porous filtering structures are disclosed.

Growing community of inventors

Woodbury, MN, United States of America

Peter O Rekow