3m Innovative Properties Company

Jacob D Young

Matthew H Frey

Jeffrey O Emslander

Christopher J Rother

Ann R Fornof

Gregg A Patnode

Rafael Garcia-Ramirez

Jose P De Souza

Jay M Krieger

Shaun M West

Mark E Napierala

Thomas Q Chastek

Ross E Behling

Alexander J Kugel

Jeffrey P Kalish

William Ward Merrill

Ramesh C Kumar

Michael D Crandall

Kanta Kumar

Robert D Waid

Ignatius A Kadoma

Adam R Wohl

Brant Ulrick Kolb

Duane Douglas Fansler

Timothy J Hebrink

Mario Alberto Perez

Jimmie Rae Baran, Jr

Mahfuza B Ali

Karl E Benson

David S Hays

Jason D Clapper

Robert B Rosner

Diane L Emslander

Sonja S Mackey

David J Kinning

Derek J Dehn

Terry R Hobbs

Joseph C Dingeldein

Dominic J Julian

George J Clements

Ying Lin

Ning Zhou

Bradley L Givot

Eric O Nyaribo

Vasav Sahni

Caitlin E Meree

Joshua M Fishman

Paul D Pennington

Jay Arthur Esch

Robert C Coffin

Shantanu R Ranade

Aaron T Hedegaard

Ross J DeVolder

Mark E Schwartz

Sebastian Goris

Mikhail A Belkin

Daniel Carvajal

Kent C Hackbarth

Tomoaki Uchiya

Joseph A Richie

Dylan J V Shallbetter

Justin M Bolton

Mark W Emerson

The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.

Core-sheath filaments and methods of printing an adhesive

Compositions and films are described comprising a polylactic (PLA) polymer and a copolymer comprising a first moiety comprising a C12-C30 alkyl group and a second moiety that is miscible in the composition. Suitable first moieties include a C12-C30 alkyl (meth)acrylate or a polyvinyl alcohol comprising pendent C12-C30 alkyl groups. Suitable second moieties include C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate and ethylene vinyl acetate. The aforementioned composition may be used to form a release layer of an adhesive article such as a pressure sensitive adhesive tape. The films may be a monolithic film or a film layer of a multilayer film. The release layer may be disposed upon a substrate layer that may also comprise PLA. The films are produced by melt extrusion of the aforementioned composition and may be oriented.

Composition and films comprising polylactic acid polymer and copolymer comprising long chain alkyl moiety

A core-sheath filament having a non-tacky sheath and a hot-melt processable adhesive core, the sheath exhibiting a melt flow index of less than 15 grams per 10 minutes, is provided. Methods of making the core-sheath filament and methods of using the core-sheath filament to print a hot-melt processable adhesive onto a primer-treated substrate surface to provide a structural bond are described.

Multilayer films and adhesive tapes that include such films, wherein the multilayer films include plasticized polyvinyl chloride and optionally one or more fillers.

Multilayer films and adhesive tapes

A core-sheath filament including a crosslinkable adhesive core that can be cured using ultraviolet or visible light radiation. These crosslinkable adhesive core compositions can provide very high bond strength and are capable of replacing traditional mechanical fasteners in many industrial applications. Core-sheath filaments including such crosslinkable compositions, crosslinked compositions, articles containing these compositions, and methods of making the articles are provided. The crosslinkable compositions contain pendant aromatic ketone groups or pendant (meth)acryloyl groups that, upon exposure to ultraviolet radiation, result in the formation of crosslinks within the polymeric material. The crosslinked compositions can function as pressure-sensitive adhesives.

Core-sheath filaments including crosslinkable and crosslinked adhesive compositions and methods of making the same

Adhesive tapes include a plasticized polyvinyl chloride backing, a primer including an ethylene/carbon monoxide-containing terpolymer and a styrene-containing block copolymer and an epoxidized polymer, and an adhesive.

Adhesive tapes

The present application generally relates to support articles and methods of making and using them. Some embodiments of the support articles of the present disclosure provide compression and/or stabilization to sore joints, tendons, or muscles. In some embodiments, the compression and/or enhanced stabilization is provided, at least in part, by one or more reinforcing portions. In some embodiments, the support articles can easily be applied by a non-trained user and can be worn in many conditions (including, for example, in the shower or during exercise) for up to three days. In some embodiments, the support articles or support articles also have a relatively slim profile and are thus discreet such that they can be worn under clothing without being noticeable. In some embodiments, the support articles eliminate or reduce joint or muscle pain or soreness.

Muscle or joint support article

Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (T) of at least 25&#xb0; C.; and plasticizer. Also described are articles comprising the foam compositions, such as a sheet or hearing protection article. Methods of making and using the foam compositions are further described herein.

Foam compositions comprising polylactic acid polymer, polyvinyl acetate polymer and plasticizer, articles, and methods of making and using same

Film constructions and articles including the film constructions, wherein a film construction includes: a backing (or an adhesive layer) having a first major surface and a second major surface; and a release layer disposed on the first major surface of the backing (or adhesive layer), wherein the release layer includes polylactic acid.

Film constructions and articles

A method of making an adhesive article is described comprising melt extruding a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer. The method further comprises melt extruding an adhesive layer on a major surface of the core film layer such that regions of interdiffusion are present between the core film layer and adhesive layer. The adhesive layer may comprise C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate, ethylene vinyl acetate, hydrolysed polyvinyl alcohol and combinations thereof. The adhesive layer may also be a pressure sensitive adhesive. The method further comprises melt extruding a release film layer on an opposing major surface of the core film layer. The layers are sequentially extruded or co-extruded and can be uniaxially or biaxially oriented. Articles comprising a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer and an adhesive layer disposed on a major surface of the core layer are also described.

Adhesive articles comprising polylactic acid polymer film and method of making

A multilayer fluoropolymer film comprising, in order: a first layer comprising a first polymer, the first polymer comprising at least 35 mol percent tetrafluoroethylene comonomer, at least 15 mole percent vinylidene fluoride comonomer, and at least 5 mol percent hexafluoropropylene comonomer, based on the total mol percent of the first polymer; a second layer comprising a second polymer, the second polymer comprising at least 50 mol percent vinylidene fluoride comonomer, based on the total mol percent of the second polymer; and a third layer comprising a third polymer, the third polymer comprising at least 50 mol percent methylmethacrylate comonomer, based on the total mol percent of the third polymer. The multilayer fluoroplymer films are useful for example, in multi-layer film applications (e.g., traffic sign protection, commercial graphic protection, paint protection, windows, windshields, building exteriors, and photo voltaics).

Multilayer fluoropolymer films

Polymeric multilayer material includes an adhesive layer having first and second opposed major surfaces. A first foam layer is joined to the first major surface and includes a first plurality of expandable microspheres. A first skin layer is attached to the first foam layer and is free of the first plurality expandable microspheres. A second foam layer is joined to the second major surface of the internal adhesive layer and includes a second plurality of expandable microspheres dispersed therein. A second skin layer is attached to the second foam layer and is free of the second plurality of expandable microspheres. A portion of the first expandable microspheres of the first foam layer and of the second foam layer is at least partially embedded within the adhesive layer. Embodiments, of polymeric multilayer materials described herein are useful, for example, as wearable medical or athletic support components. The materials can also be used as protective wrappings. For example, the materials can be wrapped around a sharp corner of an article, building, etc.

Polymeric multilayer material and method of making the same

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

Growing community of inventors

Saint Paul, MN, United States of America

Jacob D Young