3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Other

Ilya Gorodisher

Robert J Webb

Gregory P Sorenson

Michael C Palazzotto

Fred Boyle McCormick

Michael A Kropp

David J Drath

Melville R Sahyun

Dmitriy Salnikov

Robert J DeVoe

Guy D Joly

Robert J Devoe

Babu Nana Gaddam

George W Griesgraber

Mario Alberto Perez

Alphonsus V Pocius

Gary Timothy Boyd

Richard G Hansen

Thomas J Nelson

Michael A Johnson

Werner M Grootaert

Christopher J Campbell

David Adrian Ylitalo

Benjamin J Anderson

Mary M Caruso

Steffen Traser

Mark McCormick

Katri M Huikko

Dirk Kolowrot

Atri A Rungta

Susanna Sidoti Gorodisher

Mark Mccormick

Siegfried Goeb

Christian Kloninger

Dirk Hasenberg

A phenolic resin composition is described comprising at least 50 wt.-% of phenolic resin; first polymerized units comprising a cationic group; and second polymerized units comprising an anionic group. The cationic groups are ionically bonded to the anionic groups. The ionic bonding of the cationic group and anionic group of the polymerized units can provide certain complex viscosity and/or tan delta properties. In some embodiments, the phenolic resin composition has a complex viscosity at 65 C of at least 50 Pascal(seconds) and/or has a tan delta at 65 C ranging from 0.5 to 2.5. Abrasive articles and methods of making an abrasive article are also described.

Phenolic resin composition comprising polymerized ionic groups, abrasive articles and methods

A composition comprises a cyanoacrylate polymer and a protected amine. A method comprises: providing a shaped model comprising a cyanoacrylate polymer; preparing an investment having a cavity that corresponds to the shaped model; and heating the shaped model to sufficient temperature that the cyanoacrylate polymer depolymerizes and volatilizes. A hardenable material may be cast in the investment to provide a replica of the shaped model. A curable composition comprises: a cyanoacrylate monomer; a free-radical photoinitiator; and a protected amine, wherein the curable composition is free of compounds that initiate anionic polymerization of the cyanoacrylate monomer at ambient temperature. A method of curing the curable composition is also disclosed.

Molding process and compositions therefor

A catalyst for use with a phenolic resins which imparts accelerated curing at reduced temperatures. The catalyst is selected from elemental halogen or opium polyhalide compounds of the general formula:OX,where 1&#x2264;n&#x2264;4, Q is onium group, preferably selected from ammonium, sulfonium and phosphonium; and X is a halide. Each X may be the same or different and may include mixed halides such a X&#x2550;BrCl or ClBr.

Halogen and polyhalide mediated phenolic polymerization

A process of preparing polybenzoxazines using an alkylammonium salt of an acid having a pKa in acetonitrile of 9 or more as catalyst is described.

Ammonium salt catalyzed benzoxazine polymerization

The disclosure provides a catalyst for use with a benzoxazine resins which imparts accelerated curing at reduced temperatures. The catalyst is selected from elemental halogen or onium polyhalide compounds.

Benzoxazine composition

A resin blend is provided including a blend of a benzoxazine resin and a phthalonitrile resin. The benzoxazine/phthalonitrile resin blends prior to cure have more favorable processing and curing properties compared to the phthalonitrile resins alone, enabling greater ease in manufacturing.

Benzoxazine and phthalonitrile resin blends

Poly(benzoxazine) polymer are prepared by heating a benzoxazine compound in the presence of a (meth)acrylate copolymer having pendent tosylate groups, resulting in an interpenetrating polymer network of a poly(benzoxazine) and a crosslinked (meth)acrylate copolymer.

Benzoxazine polymerization

A curable benzoxazine composition is described wherein the benzoxazine is derived from an aryl amine having a b.p.&#x3e;200&#xb0; C. The curable compositions are more thermally stable and have reduced weight loss and by-products upon cure.

Curable benzoxazine compositions with improved thermal stability

A polymerizable composition is described comprising a benzoxazine, and a tosylate, which when thermolyzed, forms a (meth)acrylamide, a (meth)acrylate, a vinyl ketone, a vinyl ether or a styrenic compound.

Process for preparing poly(benzoxazines)

A process for preparing benzoxazine-thiol polymer film is described comprising forming a rolling bank of a curable composition comprising a polybenzoxazine and a polythiol, wherein the rolling bank contacts first and second carrier substrates; passing the first and second substrates with the curable composition therebetween through a nip; and at least partially curing the curable composition to provide the corresponding polymeric layer. The compositions are useful in coating, sealants, adhesive and many other applications.

Method of preparing benzoxazine-thiol polymers films

Novel oligomers and polymers derived from the reaction of benzoxazine compounds with a mixture of epoxy compounds and amine compounds are disclosed. The compositions are useful in coating, sealants, adhesive and many other applications.

Amine/epoxy curing of benzoxazines

A curable composition includes 3-substituted benzoxazine, polyepoxide, and polythiol. Articles including the curable composition, methods of curing the curable composition, and a tack-free reaction product preparable from the curable composition are also disclosed.

Curable composition, article, method of curing, and tack-free reaction product

Novel benzoxazine-thiol adducts are described, which may be may be cured to produce compositions useful in coating, sealants, adhesive and many other applications.

Benzoxazine-thiol adducts

A polymerizable composition comprising a benzoxazine compound and a catalyst is described. The polymerizable composition may be cured to produce compositions useful in coating, sealants, adhesive and many other applications.

Polybenzoxazine composition

A polymerizable composition, articles, and methods are provided, wherein the polymerizable composition includes a benzoxazine, an acid-forming peroxide catalyst and optionally a film-forming polymer, a co-catalyst, a curative, or a combination thereof.

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Stillwater, MN, United States of America

Ilya Gorodisher