3m Innovative Properties Company

Fabian Stolzenburg

Noah O Shanti

Anatoly Z Rosenflanz

Bharat R Acharya

Derek J Dehn

Jean A Tangeman

Jason D Anderson

Marc Dudley Radcliffe

Clinton P Waller, Jr

Satinder K Nayar

Ronald W Gerdes

Bruce A Sventek

Brandon Alan Bartling

Gregory A Kobussen

Qin Lin

Michael S Graff

Gareth A Hughes

Jeanne M Bruss

Tianyu Wu

Jing Chen

Robert Lw Smithson

Clinton P Waller

A polymer bond abrasive article is formed of a continuous photocured polymer matrix having abrasive particles retained therein. The photocured polymer matrix includes at least one of an optical brightener or a light absorber, and the polymer bond abrasive article has a three-dimensional shape. An abrasive tool includes the abrasive article affixed to a shaft or a pad. Further, a method of making the polymer bond abrasive article includes a) obtaining a photocurable composition liquid dispersion; b) selectively curing a portion of the photocurable composition; and repeating steps a) and b) to form the polymer bond abrasive article. The dispersion contains at least one photocurable component; abrasive particles; a photoinitiator; and at least one of an optical brightener or a light absorber.

Polymer bond abrasive articles including continuous polymer matrix, and methods of making same

Method of making a polymer matrix composite comprising a porous polymeric network structure; and a plurality of particles distributed within the polymeric network structure, the method comprising: combining a thermoplastic polymer, a solvent that the thermoplastic polymer is soluble in, and a plurality of particles to provide a slurry; forming the slurry in to an article; heating the article in an environment to retain at least 90 percent by weight of the solvent, based on the weight of the solvent in the slurry, and inducing phase separation of the thermoplastic polymer from the solvent to provide the polymer matrix composite.

Method of making polymer matrix composites

A polymer matrix composite includes a porous polymeric network structure; and a plurality of acoustically active particles distributed within the polymeric network structure. The weight fraction of acoustically active particles is between 0.80 and 0.99, based on the total weight of the polymer matrix composite. The polymer matrix composite has an air flow resistance of less than 100 seconds/50 mL/500 &#x3bc;m.

Acoustically active materials

Methods for making articles comprising crystalline material. Exemplary articles made by a method described herein include electronics enclosure (e.g., a watch case, cellular phone case, or a tablet case).

Articles comprising crystalline materials and method of making the same

Articles and methods of making and using the articles are provided. The articles include inorganic agglomerates having an average dimension in a range from about 50 microns to about 2 mm. The porous agglomerates each include a network of carbon or silica, and metal oxide particles embedded in the network. Some agglomerates are capable of lowering a resonant frequency of an acoustic device when the resonant frequency is in a range from about 50 Hz to about 1500 Hz.

Acoustically active articles

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Woodbury, MN, United States of America

Fabian Stolzenburg