3m Innovative Properties Company

Other

Minnesota Mining and Manufacturing Company

3m Innovative Properties

Richard G Hansen

Audrey A Sherman

Stephen A Johnson

Mark D Purgett

Charles M Leir

David S Hays

Karl E Benson

Albert I Everaerts

Suresh Iyer

Ramesh C Kumar

David B Olson

Craig E Hamer

George G I Moore

Mieczyslaw H Mazurek

Miguel Antonio Guerra

Dean M Moren

Wendi J Winkler

Yu Yang

Richard Yufeng Liu

Jeffrey Jacob Cernohous

Yongshang Lu

John W Frank

Ian R Owen

Matthew T Scholz

Babu Nana Gaddam

Kyle J Lindstrom

G Marco Bommarito

Amanda Catherine Engler

Junkang Jacob Liu

Alphonsus V Pocius

Ilya Gorodisher

James P DiZio

Ranjani V Parthasarathy

Douglas A Hanggi

Franklyn L Frederickson

Timothy A Peterson

Donald T Landin

Jeffrey H Tokie

Ashok Sengupta

Chris Mittelstaedt

Lowell W Holland

Hildegard M Schneider

Kevin McKim

Erich Boese

Tony Joyce

Bruce H Edwards

Kurt C Frisch, Jr

Jon P Nietfeld

Lawrence M Clemens

Benjamin J Bending

Steven Dean Koecher

Stephen A Ezzell

Hannah C Cohen

Deena M Conrad-Vlasak

David J Wirtanen

Susan M Endle

James Patrick DiZio

Gary P Roberts

Gregory J Anderson

Haoming Rong

Chad J Carter

Sarah A Sykora

Dale J Case

David Duane Johnson

John R Hart

Suresh S Iyer

George GI Moore

A copolymer composition that includes a silicone copolymer, methods of making the composition, and articles that include the composition, wherein the copolymer composition includes a silicone copolymer having a backbone composition that includes: silicone segments in an amount of 5 wt-% to 40 wt-%, based on the total weight of the silicone copolymer; hydrophilic segments in an amount of 40 wt-% to 75 wt-%, based on the total weight of the silicone copolymer; and reinforcing segments in an amount of 5 wt-% to 30 wt-%, based on the total weight of the silicone copolymer, wherein the reinforcing segments are derived from the reaction of one or more chain extenders with one or more multi-functional isocyanates, multi-functional carboxylic acids, multi-functional anhydrides, multi-functional esters, and/or multi-functional acid halides; wherein the silicone segments, hydrophilic segments, and reinforcing segments are connected through urea, urethane, amide, and/or oxamide linkages; wherein the hydrophilic segments and the reinforcing segments are present in a weight ratio of 1.8:1 to 8:1; and the hydrophilic segments and the silicone segments are present in a weight ratio of 1.3:1 to 4.5:1.

Silicone copolymers, methods of making, and articles

A method of making a silyl-terminated polyurethane in an aqueous dispersion aqueous silyl-terminated polyurethane dispersions are described. In one embodiment, the polyurethane comprises a) urethane moieties derived from the reaction of a (i) a diol; (ii) a neutralized anionic water solubilizing compound; and iii) a diisocyanate. The polyurethane also comprises b) silyl terminal groups derived from an alkoxy silane compound having the formula (RO)SiR&#x2014;Z, wherein Ris independently hydrogen or a C-Calkyl; Ris a divalent group selected from alkylene, alkylarylene, oxyalkylene; and Z is selected from the group consisting of &#x2014;OH, &#x2014;SH, &#x2014;NR, &#x2014;NH, wherein R is an aromatic or aliphatic cyclic group. The polyurethane also comprises c) urea moieties derived from the reaction of an isocyanate terminated prepolymer and a difunctional hydrazine or hydrazide compound.

Polyurethane-polyurea dispersions comprising hydrazine or hydrazide chain extenders

Silicone-polyether copolymers, adhesives and medical articles comprising same, and methods of making same. The silicone-polyether copolymer composition can include a backbone composition having a first (silicone) segment and a second (polyether) segment connected randomly via at least one of an oxamide linkage and a urea linkage. The method of making the silicone-polyether copolymer composition can include combining: a) a first (silicone) precursor; b) a second (polyether) precursor; and c) at least one of a diisocyanate and an oxalate compound.

Silicone-polyether copolymers, adhesives and medical articles comprising same, and methods of making same

Provided are one-part, shelf-stable polyurethane aerosol compositions, and related articles and methods. When sprayed onto a substrate and dried, these compositions provide polyurethane films. These polyurethane films display improved moisture resistance, optical clarity, and weatherability compared to known aerosol compositions, particularly in adverse environmental conditions. The compositions generally include an aqueous polyurethane dispersion containing a urethane moiety obtained by reacting (i) a polyol or thiol having isocyanate-reactive functional groups, (ii) a neutralized water-solubilizing compound, and (iii) a diisocyanate and optionally a silane terminal group; a propellant; and optionally one or more additives.

Polyurethane aerosol compositions, articles, and related methods

Polydiorganosiloxane polyamide, block copolymers having organic soft segments and methods of making the copolymers are provided.

Polydiorganosiloxane polymide copolymers having organic soft segments

Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)type.

Polydiorganosiloxane polyoxamide copolymers

Copolymers containing at least one perfluoropolyether segment and multiple aminooxalylamino groups are described. Methods of making the copolymers are also described. The copolymers can be prepared by reacting an oxalylamino-containing compound and an amine compound having at least two primary amino groups, at least two secondary amino groups, or at least one primary amino group plus at least one secondary amino group.

Copolymers with perfluoropolyether segment and multiple aminooxalylamino groups

Polydiorganosiloxane polyamide copolymers having organic soft segments

Compounds containing at least one perfluoropolyether segment and at least two oxalylamino groups as well as methods of making these compounds are described. The compounds can be polymeric materials or can be used in the preparation of various copolymeric materials by reaction with compounds having at least two primary or secondary amino groups.

Perfluoropolyether-containing compounds with oxalylamino groups

A method of preparing polydiorganosiloxane polyoxamide copolymers is described. These copolymers have at least one polydiorganosiloxane segment and at least two aminooxalylamino groups. The method can be used in the presence or absence of a solvent. Intermediates involved in the preparation of the copolymers are also described.

Methods of making polydiorganosiloxane polyoxamide copolymers

Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB)type.

Adhesive compositions

Growing community of inventors

Mahtomedi, MN, United States of America

Richard G Hansen