3m Innovative Properties Company

Caitlin E Meree

Joshua M Fishman

Caroline M Ylitalo

Jeffrey P Kalish

Qin Lin

Ying Lin

Duane Douglas Fansler

Jimmie Rae Baran, Jr

Rajdeep S Kalgutkar

David T Amos

Duy K Lehuu

Richard C Webb

Li Yao

Andrew W Long

Nicholas K Lee

Aaron T Hedegaard

Brant Ulrick Kolb

William Bedingham

Jeffrey O Emslander

Mahfuza B Ali

Hassan Sahouani

Joseph D Rule

James P Endle

Derek J Dehn

Terry R Hobbs

Andrew S Viner

Jacob D Young

Travis L Potts

Carla S Thomas

Richard J Webb

Ning Zhou

Bradley L Givot

Claire R Donoghue

Van Cuong Bui

Paul D Pennington

Robert C Coffin

Assumpta A G Bennaars-Eiden

Audrey S Forticaux

Jonas A Nilsson

Daniel B Taylor

Ambuj Sharma

Henning T Urban

Christine L McCool

Hannah L Mathers

Stephen R Gamble

Patrick Hjort

Justin M Bolton

Jimmie R Baran

A method for determining personal protective equipment (PPE) comfort for an individual wearer includes defining a first anatomical shape data representative of an anatomical area of the individual wearer prior to donning a PPE, a second anatomical shape data representative of the anatomical area of the individual wearer after donning the PPE, and comparing the first anatomical shape data with the second anatomical shape data. The method further includes determining a soft skin tissue deformation at a plurality of predetermined anatomical positions based on the comparison between the first anatomical shape data and the second anatomical shape data, and determining a displacement comfort threshold (CTd) value based on the soft skin tissue deformation. The method also includes determining a pressure pain threshold (PPT) value, and determining a comfort metric based on the PPT values and the CTd values. The method also includes generating a notification corresponding to the comfort metric.

System and method for determining personal protective equipment comfort

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and articles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

Compositions and foam compositions containing composite particles, articles, composite particles, and methods

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

A ring-shaped cushion for a hearing protector or audio headset. The cushion has a circumferential contact pad for sealing on a wearer's head and an attachment for sealing with an earmuff. The cushion further has a sound insulation tube that inwardly defines an inner space. The sound insulation tube extends between the contact pad and the attachment. The cushion has a ventilation passage that extends entirely through the cushion between an inlet opening in the contact pad and an area outside of the inner space. The cushion may further include one or more physiological sensors to monitor the health of a wearer.

Cushion for a hearing protector or audio headset

Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (T) of at least 25&#xb0; C.; and plasticizer. Also described are articles comprising the foam compositions, such as a sheet or hearing protection article. Methods of making and using the foam compositions are further described herein.

Foam compositions comprising polylactic acid polymer, polyvinyl acetate polymer and plasticizer, articles, and methods of making and using same

Composite particles are provided including a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are compositions and foam compositions containing the composite particles. Further, articles are provided including the foam compositions, such as a sheet, tape, or hearing protection article. Methods of making and using the foam compositions are additionally described herein.

Composite particles, composition and foam compositions containing composite particles, articles, and methods of making and using same

A hearing-protective earplug () with a resilient polymeric foam body () and with a grippable stem () that includes a forward portion () with an annular sleeve () that at least partially defines an open-ended, front-facing cavity () within which a rearward portion () of the resilient polymeric foam body resides.

Earplug with stem comprising a sleeve

Reaction mixtures, foams prepared from the reaction mixtures, articles containing the foams, and methods of making the foams are provided. The polymeric material in the foam is formed from a polymerizable composition that includes a di(meth)acrylate oligomer and a monomer having a single ethylenically unsaturated group. The foams are highly filled (e.g., at least 60 volume percent of the foam is the filler) and can be thermally conductive. Although the foams contain a large amount of filler, the foams can be compressed at least 40 volume percent with an applied pressure of 50 pounds per square inch (345 kiloPascals).

Foams and methods of making

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Saint Paul, MN, United States of America

Caitlin E Meree