3m Innovative Properties Company

Danny Leroy Fleming

Frank Thomas Sher

Jeffrey O Emslander

David James Yarusso

Michael R Kesti

Audrey A Sherman

Stephen A Johnson

Timothy J Hebrink

David S Hays

Ronald S Steelman

John R David

Richard L Peloquin

John A Nielsen

Mung-Lin S Tan

Robert L W Smithson

Graham M Clarke

Robert K Galkiewicz

Larry A Meixner

George J Clements

Ernest M Rinehart

This invention relates to a mixture of a polydiorganosiloxane polyamide-containing material and an organic polymer.

Mixtures of polydiorganosiloxane polyamide-containing components and organic polymers

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

The present application is directed to an article comprising a base substrate having a first major surface and a second major surface opposite the first major surface and a structured surface comprising a deposited material adhered to a portion of the first major surface of the base substrate, wherein the material has a height over the first major surface of at least 3 micrometers. The structured surface is defined, in part, by the deposited material and the structured surface has at least one continuous structure from one edge of the base substrate to a second edge of the base substrate. The application is additionally directed to a method of manufacturing the article.

Microstructured release liners

A process to mark a multilayered article having a release layer and an adhesive layer, using a laser to produce markings within more than one layer of the article. The process includes providing a multilayered article including a laser-markable release liner having a release layer, and a laser-markable adhesive film; and marking the laser-markable release liner and the laser-markable adhesive film by directing laser radiation from at least a first source of laser radiation into the multilayered article through at least the first release layer to induce an interaction between a first light-sensitive pigment and a first organic polymer in the laser-markable release liner, and a second light-sensitive pigment and a second organic polymer in the laser-markable adhesive film, to form at least one visually perceptible marking in each of the laser-markable release liner and the laser-markable adhesive film. The release layer is substantially transparent to the laser radiation. Multilayered articles having multi-layer laser markings are also disclosed.

Laser marking process and articles

The present application is directed to adhesive articles and release liners. Namely, the present application is directed to an article comprising an adhesive layer with a structured surface. The structured surface comprises a first groove and a second groove recessed into the adhesive layer from a reference plane defined by the adhesive surface on either rim of the groove. In some embodiments, the second groove is contained within the first groove, and in other embodiments the grooves are separate. The first groove and the second groove have walls. The wall angle of the first groove with respect to the reference plane is non-zero and is smaller than the wall angle of the second groove with respect to the reference plane. The application is also directed to release liners for the adhesive article, wherein the surface of the release liner is the inverse of the adhesive surface.

Adhesive articles and release liners

The present application is related to substrates having light transmitting areas and light shielding areas. The application discloses methods of manufacturing the substrates, including modifying a light shielding layer be contact to a structured surface.

Methods of manufacturing substrates

Films are closely conformed to substrates by reducing the air pressure to a subatmospheric level in at least one airflow pathway that is present in the film or the substrate. The reduced air pressure enables the film to tightly contact the substrate in locations where protrusions or depressions on the substrate are present. The method is particularly useful for conforming film containing graphics to a variety of substrates such as the sides of semi-trailers or concrete block walls, even in instances where the semi-trailer sides include rivets and/or grooves and where the concrete block wall is relatively rough.

Method of conforming an adherent film to a substrate by application of vacuum

A method for coating includes applying an adhesive to a surface, wherein the surface comprises an arrangement of structures thereon, wherein the structures extend upward from a plane of the surface and have at least one sidewall that makes an angle with respect to the plane of the surface of greater than 0&deg; and less than 90&deg; selected to reduce air bubble formation for a coating solution of a selected rheology.

Method of enhancing coating speed

A release liner includes a surface with an arrangement of structures thereon, wherein the structures extend upward from a plane of the surface, and wherein the structures have at least one sidewall that makes an angle with respect to the plane of the surface of greater than 0&deg; and less than 90&deg; selected to enhance adhesion to a tape.

Structured release liners with improved adhesion to adhesive articles

A method of forming a thermoplastic layer on an adhesive layer is provided. In the steps of the method, a thermoplastic powder is provided having a melt flow index of at least about 0.008 grams/10 minutes, the powder is applied to at least one surface of the adhesive layer to form a particle layer, and the combination is then subjected to elevated heat and pressure until particle layer is fused into a continuous layer and the continuous layer is bonded to the adhesive layer.

Growing community of inventors

Stillwater, MN, United States of America

Danny Leroy Fleming