3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Daniel C Munson

David James Yarusso

Timothy D Bredahl

Richard E Bennett

Anthony R Plepys

Robert L Smith

Harold W Leverty

Karl E Benson

Patrick Darby Hyde

Ross E Behling

David T Amos

Gregg A Patnode

Mark F Ellis

Michael D Determan

Michele A Craton

Kiu-Yuen Tse

Anish Kurian

Sheila F Cox

Nicole Morozowich Beveridge

John Michael Oberthier

Herbert W Goetsch

Denis A Brisson

Angelo Psellas

Andrew C Lottes

Crosslinkable compositions, crosslinked compositions, articles containing these compositions, and methods of making the articles are provided. The crosslinkable compositions, which include two (meth)acrylate polymers, are used to form the crosslinked compositions upon exposure to ultraviolet radiation. The crosslinkable and crosslinked compositions are free or substantially free of tackifiers. The crosslinked compositions can function as pressure-sensitive adhesives. The crosslinkable compositions are well suited for use with hot melt processing methods.

Crosslinkable and crosslinked compositions

Adhesive articles that include a substrate, a silicone polyoxamide-containing primer layer, and a silicone adhesive are disclosed. Methods of making the adhesive articles and the use of a silicone polyoxamide as a primer for improving adhesion between a substrate and a silicone adhesive are also disclosed.

Adhesive article including primer layer and method of making the same

The invention is directed toward a hot melt adhesive composition and processes for producing the same. The hot melt adhesive composition comprises: at least one non-thermoplastic hydrocarbon elastomer; at least one thermoplastic additive, wherein a ratio of melt viscosity of the at least one thermoplastic additive to melt viscosity of the at least one non-thermoplastic hydrocarbon elastomer is less than about 1:20 when measured at a shear rate of 100 seconds at a particular hot melt processing temperature; and at least one modifier.

Thermoplastic additives for hot melt adhesives based on non-thermoplastic hydrocarbon elastomers

A method for producing a pressure sensitive adhesive composition includes at least one elastomer that produces a substantially homogeneous pressure sensitive adhesive composition. The method is particularly well suited for relatively high throughput continuous compounding rates, e.g., at a throughput rate of more than about 5.4 kg/hr/l free volume of the continuous compounding device utilized in the

Process for preparing pressure sensitive adhesives

The incorporation of a non-thermosettable phenolic tackifying resin surprisingly provides improved solvent free, hot melt processing of hydrocarbon elastomers with crosslinking promoters to form pressure sensitive adhesive tapes. The tapes advantageously have a desirable balance of the properties of resistance to slow rate peel and fast rate peel adhesion.

Solventless hot melt process for the preparation of pressure sensitive

A solvent-free hot melt process, for preparing a non-thermosettable, pressure-sensitive adhesive from a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alternating conveying and processing zones. The processing zones masticate and mix materials in them. Non-thermoplastic elastomers having high molecular weight may be readily compounded into adhesives in the process.

Solventless compounding and coating of non-thermoplastic hydrocarbon

A pressure sensitive tape comprising an electron beam radiation crosslinkable pressure sensitive adhesive on a radiation-degradable backing, the adhesive having been crosslinked by exposure to electron beam radiation in a fashion such that the dosage reduction through the adhesive layer is no greater than about 40%; the average dosage which is received by the backing is less than about 80% of that received by the adhesive, and a sufficient dose of beam energy has been provided to produce a gel content in the adhesive of at least about 20% by weight of the elastomer.

Low voltage electron beam radiation cured elastomer-based pressure

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Saint Paul, MN, United States of America

Daniel C Munson