3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Bradford B Wright

Robert J DeVoe

Steven J Keipert

Jack G Truong

Michael M Rock, Jr

Scott R Culler

Steven Joseph Hamrock

Fred Boyle McCormick

Negus B Adefris

Aaron K Nienaber

Michael Andrew Yandrasits

John T Boden

Brian J Gates

Peter T Benson

Tzu-Chen Lee

Wesley J Bruxvoort

Jerry W Williams

Fidelis C Onwumere

Karan Jindal

Willa M Studiner

Pratik Pranay

Omar Farooq

Robert J Devoe

David L Morrison

A coated abrasive article maker apparatus is disclosed comprising a first web path comprising a production tool and a second web path configured for a resin coated backing. The second web path is configured to guide the resin coated backing through the coated abrasive article maker apparatus with the resin layer positioned facing the dispensing surface. An abrasive particle feeder is positioned along the first web path and is configured to dispense abrasive particles onto the dispensing surface such that abrasive particles are removably disposed within cavities of the production tool. Abrasive particles are transferred from the plurality of cavities to the resin layer of the resin coated backing when the production tool is positioned adjacent the resin coated backing.

Coated abrasive article maker apparatus

A coated abrasive article maker apparatus including a first web path guiding a production tool such that it wraps a portion of the outer circumference of an abrasive particle transfer roll; a second web path for a resin coated backing guiding the resin coated backing such that it wraps a portion of the outer circumference of the abrasive particle transfer roll with the resin layer positioned facing the dispensing surface of the production tool this is positioned between the resin coated backing and the outer circumference of the abrasive particle transfer roll; and wherein abrasive particles are transferred from cavities in the production tool to the resin coated backing as the resin coated backing and the production tool traverse around the abrasive particle transfer roll.

A semi-submersible microscope objective includes a microscope objective having a protective barrel with an optical inlet and optical outlet, and a protective element affixed to the microscope objective, sealing the optical exit but not the optical inlet. A transparent portion of the protective element is aligned with the optical exit. The protective element is separable from the microscope objective without damaging the microscope objective. Use of the semi-submersible microscope objective in a multiphoton imaging method is also disclosed.

Semi-submersible microscope objective with protective element and use of the same in multiphoton imaging method

A semi-submersible microscope objective () includes a microscope objective having a protective barrel () with an optical inlet () and optical outlet (), and a protective element () affixed to the microscope objective, sealing the optical outlet () but not the optical inlet (). A transparent portion () of the protective element is aligned with the optical exit (). The protective element is separable from the microscope objective without damaging the microscope objective. Use of the semi-submersible microscope objective in a multiphoton imaging method is also disclosed.

A monomer useful in the formulation of a radiation curable coatable composition comprises (a) polyfunctional isocyanurate having at least three terminal reactive groups reacted with (b) hydroxyalkyl acrylate and (c) tertiary amine alcohol in a molar ratio of a:b:c of about 1:1-2.5:0.5-2, wherein b&plus;c is at least 3 and no greater than the total number of terminal reactive groups of (a). The monomer is included in a radiation curable coatable composition suitable for use as a floor finish and in a floor finishing system comprising the foregoing coatable composition with a primer. A method for the treatment of a substrate using the floor finish and the floor finishing system is also described.

Floor finish compositions

An energy sensitive composition comprising a monomeric organometallic complex essentially free of nucleophilic groups and which, upon exposure to energy, bonds to basic reactive sites on a substrate via the metal center, leaving the polymerizable group of the complex unreacted and unrestricted; an energy sensitive composition at least one energy sensitive organometallic group is incorporated in or appended to the backbone of a polymer, such that the resulting coordinatively unsaturated organometallic group or groups bond to basic reactive sites on a substrate, thus forming permanent bonds, and further, the adherent compositions are useful in applications such as adhesion of polymers to substrates, protective coatings, printing plates, durable release coatings, primers, binders, and paints.

Organometallic monomers and polymers with improved adhesion

Abrasive article comprising organometallic coupling agent

Nonwoven articles having high durability and absorbent characteristics, and their methods of manufacture, are presented. One preferred article is characterized by

Nonwoven articles

Nonwoven articles having high durability and absorbent-characteristics, and their methods of manufacture, are presented. One preferred article is characterized by

Method of producing nonwoven articles

Polymeric triarylsulfonium salts are provided having a repeating structural unit with the formula: ##STR1## where R represents a substituted or unsubstituted aryl group, X.sup.- represents a non-nucleophilic anion, n represents an integer greater than or equal to 0 and p represents an integer greater than or equal to 2 and may be prepared by combining (a) an arylbis(p-fluorophenyl)substituted sulfonium salt with a bis(trimethylsilylated)dithiol in a polar aprotic solvent.

Polymeric sulfonium salts and method of preparation thereof

Free radical polymerizable compositions contain a sulfonium salt which is tethered to at least one of an electron donor and a sensitizer, and a polymerizable monomer, demonstrate substantially enhanced photosensitivity. This invention also provides layered structures comprising a substrate coated with a free radical polymerizable composition containing a sulfonium salt which is tethered to at least one of an electron donor and a sensitizer, and the polymerized layered structures. A method for the preparation of certain tethered sulfonium salts is described.

Tethered sulfonium salt photoinitiators for free radical polymerization

A method of combining a siloxy group (--SiO--) with a ketene-reactive compound to form a siloxy-containing product comprises:

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Woodbury, MN, United States of America

Bradford B Wright