3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

George J Clements

Jeffrey O Emslander

John A Miller

Kevin Michael Lewandowski

Kannan Seshadri

James P DiZio

Ann R Fornof

Bruce W Carlson

Jonathan E Janoski

Jacob D Young

Alden R Miles

Michele A Craton

Brian Edward Spiewak

Lori P Engle

Danny Leroy Fleming

John J Emmel

Christopher J Rother

Shijing Cheng

Michael K Martin

Petra M Stegmaier

James Patrick DiZio

Sheila F Cox

Thomas B Galush

George M Stout

Pierre Reinhard Bieber

Michael Brett Runge

Ray A Hunder

Jeffrey M Imsande

Robert E Bolitsky

Eike H Klünker

Stephen H Dwyer

Andrew C Lamberson

Scott E Michel

Dmitri D Iarikov

Niklas M Matzeit

Christine A Burbach

Joseph F Sarageno, Jr

John D Lunzer

Gerald S Deeb

Danny L Fleming

John J Erickson

The present disclosure relates to a process of manufacturing a pressure sensitive adhesive, comprising the steps of: a) providing a hot melt mixing apparatus comprising a reaction chamber; b) providing a hot melt processable pressure sensitive adhesive composition comprising: (1) a (meth)acrylate copolymer component comprising: i. C1-C32 (meth)acrylic acid ester monomer units; ii. optionally, ethylenically unsaturated monomer units having functional groups selected from the group consisting of acid, hydroxyl, acid anhydride, epoxide, amine, amide groups, and any combinations thereof; and iii. optionally, further ethylenically unsaturated monomer units which are copolymerizable with monomer units (i) and/or (ii); and (2) a crosslinking system selected from the group consisting of thermal crosslinking systems, actinic radiation crosslinking systems, and any combinations thereof; (3) optionally, at least one expandable microsphere; and (4) optionally, at least one pigment; c) providing a polymeric resin; d) subjecting the polymeric resin to a heating step (thereby at least partly remove low Volatile Organic Compounds (VOC) from the polymeric resin) thereby forming a cleaned polymeric resin; e) incorporating the cleaned polymeric resin and the hot melt processable pressure sensitive adhesive composition in the reaction chamber of the hot melt mixing apparatus; −57-f) mixing the hot melt processable pressure sensitive adhesive composition and the cleaned polymeric resin in the hot melt mixing apparatus thereby forming a hot melt blend; g) removing the hot melt blend from the hot melt mixing apparatus; and h) optionally, crosslinking the hot melt blend.

Process of manufacturing a pressure sensitive adhesive having a low VOC characteristics

Article comprising first and second continuous polymeric layers having at least one polymeric layer exhibiting a random network of strands and connective regions disposed between the first and second continuous polymeric layers. In some embodiments, the article is a tape and polymeric multilayer film having a slip resistant surface.

Article comprising multilayer film

The present application is directed to a method of manufacturing an adhesive article. The method comprises providing a first extrudable feedstock comprising a pressure sensitive adhesive and providing a second extrudable feedstock comprising a polyolefin polymer having a density of no greater than 0.91 g/cc. The first extrudable feedstock and the second extrudable feedstock are coextruded in contact with each other to form a coextruded film. The method also comprises cooling the coextruded film.

Method of manufacturing adhesive articles

This disclosure provides novel adhesive compositions comprising a highly crosslinked and plasticized low T(meth)acrylic copolymer that are self-wetting when applied to a substrate, and peelable therefrom.

Self-wetting adhesive composition

Automobile panel repair laminates include a pressure sensitive adhesive bonded to a support backing. The support backing may be constructed of various materials such as plastically deformable polymeric materials including thermoplastic or thermoset materials and may have various thicknesses depending upon the desired conformability and rigidity necessary for the repair. The support backing may be bonded to the pressure sensitive adhesive by applying adhesion promoters such as solvents. The repair laminate is applied to a back or non-aesthetic side of the automobile panel, and the front side is repaired using standard techniques for filling and finishing.

Automobile panel repair laminate

A flexible cover for protecting a splice of a conveyor belt, in particular, for protecting the belt fastener that forms the splice. The splice cover includes a body having a first surface and an opposite second surface, with a plurality of first reclosable fasteners extending from the first surface. The first reclosable fasteners engage with a plurality of second reclosable fasteners, which are attached to the belt. The second reclosable fasteners can be secured to the belt by the belt fastener, by adhesive or other attachment means, by being integral with the belt fastener, or by being integral with the belt web. The second reclosable fastener can be any structure that engages, interlocks, mates, or otherwise attaches to first reclosable fastener. Also provided are methods for making the splice cover, and methods for placing and removing the splice cover over the belt fastener.

Conveyor belt splice cover, and methods

A method for maintaining a plurality of wood veneer substrates in fixed relation to each other that includes positioning a plurality of wood veneer substrates in relation to each other, and applying a tape to the substrates to maintain the substrates in fixed relation to each other. The tape is capable of maintaining wood veneer substrates in fixed relation to each other before and during a lamination process in which the substrates are laminated to an underlying base, and is cleanly removable from the substrates following the lamination process.

Method of preparing an article using cleanly removable veneer tape

An adhesive of certain elastomeric block copolymers and tackifying materials can be hot-melt coated onto a flexible backing to provide an adhesive tape, two pieces of which can bond to each other to have excellent resistance to shear forces but can be easily peeled apart, even after prolonged periods of time. The adhesive can be low-tack or tack-free. When the novel adhesive is tacky, it can bind sheets into a note pad from which individual sheets can be removed, temporarily adhered to paper and other substrates, and later cleanly removed, even after prolonged contact.

Repositionable adhesive tape

A pad assembly comprising a multiplicity of flexible sheets each having a band of repositionable pressure sensitive adhesive coated on its rear surface adjacent and spaced by a small predetermined spacing from a first edge. The sheets are disposed in a stack with the band of repositionable pressure sensitive adhesive on each sheet adhering it to the adjacent sheet in the stack; and a layer of padding compound is disposed over and adhered to aligned first edges of the sheets in the stack. The padding compound allows, after the band of repositionable pressure sensitive adhesive on the rear surface of one of the sheets in the stack is separated from the front surface of the adjacent sheet in the stack, that one sheet (and any sheets above it) to be pivoted away from that adjacent sheet while remaining adhered to the adjacent sheets. The small predetermined spacing between the band of repositionable pressure sensitive adhesive and the first edge of each sheet provides a tactile feel when the band of repositionable pressure sensitive adhesive on the rear surface of one of the sheets in the stack separates from the front surface of the adjacent sheet in the stack that signals the person peeling the sheet away that such separation has occurred, and allows that person to reduce the force he is applying to the sheet, thereby restricting inadvertent separation of that sheet from the padding compound. After a sheet is intentionally separated from the padding compound, the band of repositionable pressure sensitive adhesive on the sheet affords adhesion of that sheet to a vertical surface.

Pad assembly

A method for binding a stack of fan folded sheets including manually disposing the stack of sheets with spine edges of the sheets generally aligned in a plane generally at a right angle to the side surfaces of the sheets in the stack; manually positioning a thick layer of pressure sensitive adhesive already adhered to a generally planar portion of a highly flexible backing having low resiliency over the spine edges; and manually pressing the side of the backing against the spine edge of the sheets to cause conformation of the backing and adhesion of the layer of pressure sensitive adhesive to the spine edges of the sheets, which is most easily done by manually pressing the spine edges of the sheets toward an edge of a structure such as a table or desk with the edge disposed transverse of the spine edges of the sheets along the surface of the backing opposite the layer of pressure sensitive adhesive while moving the spine edges longitudinally to bring the majority of the side of the backing opposite the layer of pressure sensitive adhesive progressively into engagement with the edge.

Manual sheet binding structure and method

Growing community of inventors

Afton, MN, United States of America

George J Clements