3M Innovative Properties Company

Jessica M Buchholz

Matthew T Scholz

Caroline M Ylitalo

Robin Edgar Wright

Narina Y Stepanova

Mahfuza B Ali

Diane R Wolk

Louis C Haddad

Yifan Zhang

Richard L Walter

Michael J Svarovsky

Linda K M Olson

The present disclosure describes methods for making shaped polymeric materials. Methods are provided for making shaped polymeric materials from a precursor composition that contains a polar solvent and a polymerizable material that is miscible with the polar solvent. The precursor composition is at least partially polymerized in a mold.

Methods of making shaped polymeric materials

Polymeric beads and methods of making the polymeric beads are described. The polymeric beads are crosslinked hydrogels or dried hydrogels. The polymeric beads are formed from droplets of a precursor composition that are exposed to radiation. The droplets are totally surrounded by a gas phase. The precursor composition contains a polar solvent and a polymerizable material miscible in the polar solvent. The polymerizable material has an average number of ethylenically unsaturated groups per monomer molecule equal to at least 1.2.

Polymeric beads and methods of making polymeric beads

Polymeric fibers and methods of making the polymeric fibers are described. The polymeric fibers are crosslinked hydrogels or dried hydrogels that are prepared from a precursor composition that contains polymerizable material having an average number of ethylenically unsaturated groups per monomer molecule greater than 1.0. The polymeric fibers can contain an optional active agent.

Polymeric fibers and methods of making

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Saint Paul, MN, United States of America

Jessica M Buchholz