CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE

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. 1. A core-sheath filament comprising an adhesive core and a non-tacky sheath , wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes (g/10 min).2. The core-sheath filament of claim 1 , wherein the core comprises a pressure sensitive adhesive.3. The core-sheath filament of claim 1 , wherein the core comprises a styrenic block copolymer and a tackifier.4. The core-sheath filament of claim 1 , wherein the core comprises a (meth)acrylic polymer.5. The core-sheath filament of claim 1 , wherein the core further comprises at least one additive selected from a filler claim 1 , a plasticizer claim 1 , an antioxidant claim 1 , a pigment claim 1 , a hindered amine light stabilizer claim 1 , an ultraviolet light absorber ...

Adhesive tapes

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.

Film Constructions And Articles

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. 1. A film construction comprising:a backing having a first major surface and a second major surface; anda release layer disposed on the first major surface of the backing, wherein the release layer comprises a polymer mixture comprising polylactic acid and an ethylene-containing copolymer;wherein the ethylene-containing copolymer comprises ethylene and at least one polar comonomer; andwherein the at least one polar comonomer is selected such that the ethylene-containing copolymer does not adversely impact the paintability, printability, or otherwise image receptivity of the release layer.2. The film construction of wherein the ethylene-containing copolymer comprises ethylene and at least two polar comonomers.3. The film construction of wherein the release layer does not include a silicone.4. The film construction of wherein the ethylene-containing copolymer comprises an ethylene-(meth)acrylate ester copolymer claim 1 , carbon monoxide modified ethylene/vinyl acetate claim 1 , or a mixture thereof.5. The film construction of further comprising a tie layer disposed on the first major surface of the backing claim 1 , wherein the release layer is disposed directly on the tie layer.6. The film construction of wherein the tie layer comprises an ethylene-containing copolymer.7. The film construction of wherein the tie layer comprises at least two different ethylene-containing copolymers claim 6 , each comprising a polar comonomer that may or may not be the same.8. The film construction of wherein the backing comprises a layer comprising an extrudable material.9. The film construction of wherein the extrudable material comprises a polyester ...

Multilayer fluoropolymer films

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).

ADHESIVE ARTICLES COMPRISING POLYLACTIC ACID POLYMER FILM AND METHOD OF MAKING

A method of making an adhesive article is described comprising melt extruding a core film layer comprising a comport 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. 1. A method of making an adhesive article comprisingmelt extruding a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer,melt extruding an adhesive layer on a major surface of the core film layer; wherein the adhesive layer comprises moieties that are miscible in the composition of the core layer such that regions of interdiffusion are present between the core film layer and adhesive layer, andoptionally melt extruding a release film layer on an opposing major surface of the core film layer.2. The method of wherein the layers are sequentially melt extruded or coextruded.3. The method of further comprising uniaxially or biaxially orienting the film layers.4. The method of further comprising heat setting the oriented film layers.5. The method of wherein the moieties of the adhesive layer comprise polymerized units of a C-C(meth)acrylic acid or ester thereof claim 1 , vinyl acetate claim 1 , ethylene vinyl acetate claim 1 , ...

CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE

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. 2. The adhesive system of claim 1 , wherein the non-tacky sheath comprises low density polyethylene.3. The adhesive system of any of claim 1 , wherein the hot-melt processable adhesive comprises an acrylate monomer.4. The adhesive system of claim 1 , wherein the transition metal compound includes a cation of a metal selected from the group consisting of molybdenum claim 1 , titanium claim 1 , vanadium claim 1 , chromium claim 1 , manganese claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , copper claim 1 , zinc claim 1 , and combinations thereof.5. The adhesive system of any of claim 1 , wherein the accelerator is a quaternary ammonium salt.6. The adhesive system of claim 1 , wherein the curable component is a polyfunctional acrylate.7. The adhesive system of claim 1 , wherein the oxidizing agent is an organic peroxide.8. The adhesive system of claim 1 , wherein the primer comprises no tackifier.9. The adhesive system of any of claim 1 , wherein the primer comprises no species comprising unsaturated free-radically polymerizable groups.10. The adhesive system of any of claim 1 , wherein the core-sheath filament comprises 1 to 10 weight percent sheath and 90 to 99 weight percent hot-melt processable adhesive core based on a total weight of the core-sheath filament.12. The method of claim 11 , wherein the wrapping the sheath composition around the core composition comprises co-extruding the core composition and the sheath composition such that the sheath composition surrounds the core composition.13. A method of printing a hot-melt processable adhesive claim 11 , the ...

FILM CONSTRUCTIONS AND ARTICLES

Film constructions and articles including the film constructions, wherein a film construction includes: a backing having a first major surface and a second major surface, wherein the backing includes at least one backing layer comprising a polylactic acid and an ethylene-containing copolymer comprising a polar comonomer; a tie layer disposed on the first major surface of the backing; and a release layer disposed on the tie layer. 1. A film construction comprising:a backing having a first major surface and a second major surface, wherein the backing comprises at least one layer comprising a polylactic acid and an ethylene-containing copolymer comprising a polar comonomer;a tie layer disposed on the first major surface of the backing; anda release layer disposed on the tie layer.2. The film construction of wherein the tie layer comprises at least two different ethylene-containing copolymers claim 1 , each independently comprising a polar comonomer3. The film construction of wherein the release layer comprises an extrudable material.4. The film construction of wherein the extrudable material comprises a polyolefin claim 3 , an ethylene-containing copolymer comprising a polar comonomer claim 3 , a polyalkyl siloxane claim 3 , a polyurethane claim 3 , or a combination thereof.5. The film construction of wherein the release layer comprises a polyolefin.6. The film construction of wherein the release layer comprises a mixture comprising:a polyolefin;an ethylene-containing copolymer comprising a polar comonomer; andeither a polyalkyl siloxane or a polyurethane.7. The film construction of wherein the polyolefin in the release layer comprises a low density polyethylene.8. The film construction of wherein the release layer comprises a mixture comprising a polyolefin claim 6 , an ethylene-containing copolymer comprising a polar comonomer claim 6 , and a polyalkyl siloxane.10. The film construction of wherein the release layer comprises a mixture comprising a polyolefin claim 6 ...

CORE-SHEATH FILAMENTS INCLUDING CROSSLINKABLE AND CROSSLINKED ADHESIVE COMPOSITIONS AND METHODS OF PRINTING THE SAME

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. 2. The core-sheath filament of claim 1 , wherein the non-tacky sheath comprises a polymer selected from the group consisting of a (meth)acrylic block copolymer claim 1 , an ethylene methyl copolymer claim 1 , and combinations thereof.3. The core-sheath filament of claim 1 , wherein 1 to 10 percent of the longest cross-sectional distance of the core-sheath filament is the sheath and 90 to 99 percent of the longest cross-sectional distance of the core-sheath filament is the core.4. The core-sheath filament of claim 1 , wherein the curable (meth)acrylate copolymer has a weight average molecular weight in a range of 200 kDa to 1500 kDa.5. The core-sheath filament of claim 1 , wherein the curable adhesive composition further comprises an ionic crosslinking additive.6. A cured adhesive composition comprising the core-sheath filament of claim 1 , the cured adhesive composition being a reaction product resulting from exposing the core-sheath filament to ultraviolet or visible light radiation after compounding the core-sheath filament through a heated extruder nozzle.7. The cured adhesive composition of claim 6 , wherein the cured adhesive composition exhibits a creep resistance of greater than 3 MPa-s claim 6 , ...

CORE-SHEATH FILAMENTS INCLUDING POLYISOBUTYLENE COMPOSITIONS AND METHODS OF PRINTING THE SAME

Provided are amorphous polyolefin compositions that can be dispensed digitally as the core in a core-sheath construction. These formulations provide dependable adhesion to both polar and non-polar surface in addition to providing a high barrier to air and moisture which is beneficial in many applications. These formulations and the method of processing these formulations provide many benefits, including low VOCs, avoiding die cutting, design flexibility, achieving intricate nonplanar bonding patterns, printing on thin and/or delicate substrates, and printing on an irregular and/or complex topography, no need for release liners or low-adhesion backsize, and no need for a post-processing step. 1. A core-sheath filament comprising:a non-tacky sheath, wherein the non-tacky sheath exhibits a melt flow index of less than 15 grams per 10 minutes (g/10 min); and 'a polyisobutylene polymer having a weight average molecular weight of 125000 grams per mole (g/mol) to 800000 g/mol.', 'an adhesive core, wherein the adhesive core comprises2. The core-sheath filament of claim 1 , wherein the non-tacky sheath comprises LDPE.3. The core-sheath filament of claim 1 , wherein the core-sheath filament comprises 1 to 10 weight percent sheath and 90 to 99 weight percent hot-melt processable adhesive core based on a total weight of the core-sheath filament.4. The core-sheath filament of claim 1 , wherein the polyisobutylene-polymer has a weight average molecular weight of 150000 g/mol to 790000 g/mol claim 1 , 200000 g/mol to 780000 g/mol claim 1 , or 245000 g/mol to 770000 g/mol.5. The core-sheath filament of claim 1 , wherein the adhesive core comprises 10 weight percent to 60 weight percent of the polyisobutylene polymer based on a total weight of the adhesive core.6. The core-sheath filament of claim 1 , wherein the polyisobutylene polymer comprises a first polyisobutylene polymer having a weight average molecular weight of 3000000 grams per mole (g/mol) to 2500000 g/mol and a second ...

MULTILAYER FILMS AND ADHESIVE TAPES

Multilayer films and adhesive tapes that include such films, wherein the multilayer films include plasticized polyvinyl chloride and optionally one or more fillers. 1. A multilayer film comprising one or more organic polymers , wherein at least one layer comprises a plasticized polyvinyl chloride , and at least one layer comprises one or more fillers , and further wherein the layer comprising the plasticized polyvinyl chloride comprises more than 25 wt-% polyvinyl chloride , based on the total weight of the layer.2. The multilayer film of wherein the one or more fillers comprise an inorganic filler.3. The multilayer film of wherein the one or more fillers comprise particulate having an average particle size of 1 micron to 50 microns.4. The multilayer film of comprising up to 15 layers.5. The multilayer film of comprising a core and two surface layers claim 1 , wherein the core comprises one or more layers claim 1 , wherein at least one layer of the core comprises one or more fillers.68-. (canceled)9. The multilayer film of having an adhesive disposed thereon.10. An adhesive tape comprising:a backing comprising a multilayer film comprising one or more organic polymers, wherein at least one layer comprises a plasticized polyvinyl chloride, and at least one layer comprises one or more fillers;a primer layer disposed on at least one major surface of the backing; anda pressure sensitive adhesive layer disposed on the primer layer.11. The adhesive tape of wherein the multilayer film backing comprises up to 15 layers.12. The adhesive tape of wherein the multilayer film backing comprises a core and two surface layers.13. The adhesive tape of wherein the core comprises one or more layers.14. The adhesive tape of wherein at least one layer of the core comprises one or more fillers.15. The adhesive tape of wherein each surface layer comprises one or more fillers.16. The adhesive tape of wherein each layer of the multilayer film backing comprises plasticized polyvinyl chloride. ...

FOAM COMPOSITIONS COMPRISING POLYLACTIC ACID POLYMER, POLYVINYL ACETATE POLYMER AND PLASTICIZER, ARTICLES, AND METHODS OF MAKING AND USING SAME

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° 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. 2. The foam composition of claim 1 , wherein the polylactic acid polymer comprises an amorphous polylactic acid polymer.3. The foam composition of claim 1 , wherein the polylactic acid polymer comprises a semicrystalline polylactic acid polymer.4. The foam composition of claim 1 , further comprising at least one nucleating agent selected from a cell nucleating agent claim 1 , a crystallization nucleating agent claim 1 , a cell stabilizer claim 1 , and a combination thereof.5. The foam composition of claim 4 , wherein the cell stabilizer comprises silica nanoparticles functionalized with a polyethylene glycol silane.6. The foam composition of claim 1 , further comprising a crosslinking agent.7. The foam composition of claim 1 , further comprising a crosslink catalyst comprising an alkyl or alkenyl ammonium claim 1 , phosphonium claim 1 , or imidizolium salt.9. The foam composition of claim 1 , wherein the composition does not exhibit plasticizer migration when aged at 80° C. for 24 hours.10. The foam composition of claim 1 , wherein the foam composition comprises a rough surface morphology.12. A foam sheet comprising the foam composition of .13. A hearing protection article comprising the foam composition of .14. A method of making a foam composition claim 1 , the method comprising:{'sub': 'g', 'a. compressing a mixture comprising a polylactic acid polymer; a second polymer having a Tof at least 25° C., wherein the second polymer comprises polyvinyl acetate; a plasticizer; and a blowing agent; and'}b. heating the compressed mixture, thereby forming the foam composition.15. The method of claim 14 , ...

POLYMERIC MULTILAYER MATERIAL AND METHOD OF MAKING THE SAME

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. 1. A polymeric multilayer material comprising:an adhesive layer having a first and second opposed major surfaces;a first foam layer having a first plurality of expandable microspheres dispersed therein and joined to the first major surface of the internal adhesive layer;a first skin layer that is free of the first plurality expandable microspheres in the first foam layer, and that is attached to the first foam layer to define a first external surface of the polymeric multilayer material;a second foam layer having a second plurality of expandable microspheres dispersed therein and joined to the second major surface of the internal adhesive layer; anda second skin layer that is free of the second plurality of expandable microspheres in the second foam layer, and that is attached to the second foam layer to define a second external surface of the polymeric multilayer material,wherein a portion of the first expandable ...

Polymeric multilayer film with openings

Polymeric multilayer films having an array of openings extending between the first and second major surfaces of the film, and a thickness greater than 50 micrometers, wherein the openings each have a series of areas through the openings from the first and second major surfaces ranging from minimum to maximum areas, and wherein the minimum area is not at at least one of the major surfaces. Polymeric multilayer films described herein are useful, for example, for wound dressings and graphics films.

Composition and Films Comprising Polylactic Acid Polymer and Copolymer Comprising Long Chain Alkyl Moiety

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. 1. A composition comprising a polylactic acid polymer and a copolymer comprising a first moiety comprising a C12-C30 alkyl group and a second moiety that is miscible in the composition.2. The composition of wherein the copolymer lacks silicone-containing moieties.3. The composition of wherein the second moiety comprises polymerized units of a C1-C10 (meth)acrylic acid or ester thereof claim 1 , vinyl acetate claim 1 , ethylene vinyl acetate claim 1 , and combinations thereof.4. The composition of wherein the copolymer is a random copolymer of a C1-C10 (meth)acrylic acid and a C12-C30 alkyl (meth)acrylate.5. The composition of wherein the copolymer is a copolymer of ethylene vinyl acetate and polyvinyl alcohol comprising pendent C12-C30 alkyl groups.6. The composition of wherein the composition comprises up to 25 wt.-% of the copolymer.7. The composition of wherein the composition comprises at least 50 wt.-% of semicrystalline polylactic acid polymer.8. The composition of wherein the composition comprises up to 15 wt.-% of C12-C30 alkyl moieties.9. A film or film layer comprising the composition of .10. The film or film layer of wherein the ...

ADHESIVE TAPES

Adhesive tapes include a plasticized polyvinyl chloride backing, a primer including an ethylene/carbon monoxide-containing terpolymer, and an adhesive. 1. An adhesive tape comprising:a backing comprising a plasticized polyvinyl chloride;a primer layer disposed on at least one major surface of the backing, wherein the primer comprises an ethylene/carbon monoxide-containing terpolymer; andan adhesive layer disposed on the primer layer.2. The adhesive tape of wherein the primer is solventless.3. The adhesive tape of wherein the ethylene/carbon monoxide-containing terpolymer comprises a third monomer selected from vinyl acetate claim 1 , n-butyl acrylate claim 1 , and a combination thereof.4. The adhesive tape of wherein the ethylene/carbon monoxide-containing terpolymer comprises: (a) 20 wt-% to 80 wt-% ethylene monomer; (b) 3 wt-% to 30 wt-% carbon monoxide monomer; and (c) 5 wt-% to 60 wt-% of a third monomer claim 1 , wherein the percentages are based on the total weight of the terpolymer.5. The adhesive tape of wherein the third monomer is vinyl acetate.6. The adhesive tape of wherein the primer further comprises a second ethylene-containing copolymer or terpolymer comprising one or two comonomers having a polarity greater than that of ethylene.7. The adhesive tape of wherein the comonomers of the second ethylene-containing copolymer or terpolymer having a greater polarity than that of ethylene are selected from acids claim 6 , acetates claim 6 , epoxies claim 6 , acrylates claim 6 , and combinations thereof.8. The adhesive tape of wherein the comonomers having a greater polarity than that of ethylene are selected from vinyl acetate claim 7 , acrylic acid claim 7 , methyl (meth)acrylate claim 7 , ethyl acrylate claim 7 , glycidyl methacrylate claim 7 , anhydride-functional monomers claim 7 , n-butyl acrylate claim 7 , and combinations thereof.9. The adhesive tape of wherein the ethylene-containing copolymer or terpolymer is present in the primer in an amount of 5 ...

Muscle or Joint Support Article

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.

ADHESIVE TAPES

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 adhesive. 1. An adhesive tape comprising:a backing comprising a plasticized polyvinyl chloride;a primer layer disposed on at least one major surface of the backing, wherein the primer layer comprises an ethylene/carbon monoxide-containing terpolymer, and a styrene-containing block copolymer; andan adhesive layer disposed on the primer layer.2. The adhesive tape of wherein the primer is solventless.3. The adhesive tape of wherein the ethylene/carbon monoxide-containing terpolymer comprises a third monomer selected from vinyl acetate claim 1 , n-butyl acrylate claim 1 , and a combination thereof4. The adhesive tape of wherein the ethylene/carbon monoxide-containing terpolymer comprises: (a) 20 wt-% to 80 wt-% ethylene monomer; (b) 3 wt-% to 30 wt-% carbon monoxide monomer; and (c) 5 wt-% to 60 wt-% of a third monomer claim 1 , wherein the percentages are based on the total weight of the terpolymer.5. The adhesive tape of wherein the third monomer is vinyl acetate.6. The adhesive tape of wherein the primer further comprises a second ethylene-containing copolymer or terpolymer comprising one or two comonomers having a polarity greater than that of ethylene.7. The adhesive tape of wherein the comonomers of the second ethylene-containing copolymer or terpolymer having a greater polarity than that of ethylene are selected from acids claim 6 , acetates claim 6 , epoxies claim 6 , acrylates claim 6 , and combinations thereof8. The adhesive tape of wherein the comonomers having a greater polarity than that of ethylene are selected from vinyl acetate claim 7 , acrylic acid claim 7 , methyl (meth)acrylate claim 7 , ethyl acrylate claim 7 , glycidyl methacrylate claim 7 , anhydride-functional monomers claim 7 , n-butyl acrylate claim 7 , and combinations thereof.9. The adhesive tape of wherein the ...

ARTICLE COMPRISING MULTILAYER FILM

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. 1. An 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.220. The article of claim 1 , wherein at least one polymeric layer exhibiting a random network of strands and connective regions has an open porosity of at least percent.3. The article of claim 1 , wherein at least one polymeric layer exhibiting a random network of strands and connective regions is separable from the remaining polymeric multilayer film.4. The article of that is a polymeric multilayer film.5. The article of claim 1 , wherein at least one of the first or second major surfaces of a polymeric multilayer film described herein has a coefficient of friction of at least 0.4.6. The article of that is a graphic article. This application claims the benefit of U.S. Provisional Patent Application No. 62/432,337, filed Dec. 9, 2016, the disclosure of which is incorporated by reference herein in its entirety.There is a desire to make polymeric films and film composites with structures and/or textures to provide additional functionality. Such functionality may include optical effects, and/or increased liquid absorption or solid retention due to the increased surface area of a texture surface vs. a smooth surface.Textures or structures can be added to polymeric films, for example, via casting molten polymer onto a patterned chill roll. This requires the use of a specific patterned roll for each desired texture or structured film. Alternatively, a non-patterned polymeric film can be embossed after the film- ...

POLYMERIC MULTILAYER FILM

Polymeric multilayer film comprising a layer comprising a first pressure sensitive adhesive and exhibiting a random network of strands and connective regions. The polymeric multilayer films are useful, for example, for tape and graphic articles. 1. A polymeric multilayer film comprising a polymeric layer comprising a first pressure sensitive adhesive and exhibiting a random network of strands and connective regions.2. The polymeric multilayer film of further comprising at least one additional polymeric layer exhibiting a random network of strands and connective regions.320. The polymeric multilayer film of wherein at least one polymeric layer exhibiting a random network of strands and connective regions has an open porosity of at least percent.4. The polymeric multilayer film of wherein at least one polymeric layer exhibiting a random network of strands and connective regions is separable from the remaining polymeric multilayer film.5. The polymeric multilayer film of any preceding further comprising a first continuous layer.6. The polymeric multilayer film of claim 5 , wherein the first continuous layer is free of a pressure sensitive adhesive claim 5 , and wherein the layer exhibiting a random network of strands and connective regions comprises a pressure sensitive adhesive.7. The polymeric multilayer film of claim 6 , wherein the first continuous layer comprises a first pressure sensitive adhesive claim 6 , and wherein the layer exhibiting a random network of strands and connective regions comprises a second pressure sensitive adhesive.8. The polymeric multilayer film of claim 7 , wherein the first continuous layer is a skin layer.9. The polymeric multilayer film of wherein at least one of the first or second major surfaces of the polymeric multilayer film exhibits a random network of strands and connective regions.10. The polymeric multilayer film of having a machine and cross-machine direction claim 1 , wherein the polymeric multilayer film is elastic in the ...

POLYMERIC MULTILAYER FILM

Polymeric multilayer film comprising at least two adjacent layers each exhibiting a random network of strands and connective regions. The polymeric multilayer films are useful, for example, for tape and graphic articles. 1. A polymeric multilayer film comprising at least two adjacent polymeric layers each exhibiting a random network of strands and connective regions.2. The polymeric multilayer film of claim 1 , wherein at least one layer exhibiting a random network of strands and connective regions has an open porosity of at least 20 percent.3. The polymeric multilayer film of claim 1 , wherein at least one layer exhibiting a random network of strands and connective regions is separable from the remaining polymeric multilayer film.4. The polymeric multilayer film of claim 1 , further comprising a first continuous layer.5. The polymeric multilayer film of claim 4 , wherein the first continuous layer is free of a pressure sensitive adhesive claim 4 , and wherein the layer exhibiting a random network of strands and connective regions comprises a pressure sensitive adhesive.6. The polymeric multilayer film of claim 5 , wherein the first continuous layer comprises a first pressure sensitive adhesive claim 5 , and wherein the layer exhibiting a random network of strands and connective regions comprises a second pressure sensitive adhesive.7. The polymeric multilayer film of claim 6 , wherein the first continuous layer is a skin layer.8. The polymeric multilayer film of claim 1 , wherein at least one of the first or second major surfaces of the polymeric multilayer film exhibits a random network of strands and connective regions.9. The polymeric multilayer film of having a machine and cross-machine direction claim 1 , wherein the polymeric multilayer film is elastic in the cross-machine direction.10. The polymeric multilayer film of claim 1 , further comprising a liner having a major surface attached to either the first or second major surface of the polymeric multilayer ...

POLYMERIC MULTILAYER FILM

Polymeric multilayer film having first and second opposed major surfaces, comprising at least one layer comprising a first release agent and exhibiting a random network of strands and connective regions. The polymeric multilayer films are useful, for example, for tape and graphic articles. 1. A polymeric multilayer film having first and second opposed major surfaces , comprising at least one layer comprising a first release agent and exhibiting a random network of strands and connective regions.2. The polymeric multilayer film of claim 1 , wherein at least one layer exhibiting a random network of strands and connective regions has an open porosity of at least 20 percent.3. The polymeric multilayer film of claim 1 , wherein the release agent is at least one of an alkyl dimethicone claim 1 , a polyvinyl octadecyl carbamate claim 1 , or an ethylene bis-stearamide.4. The polymeric multilayer film of further comprising a first continuous layer.5. The polymeric multilayer film of claim 4 , wherein the first continuous layer is a skin layer.6. The polymeric multilayer film of claim 1 , wherein the second major surface of the polymeric multilayer film comprises a pressure sensitive adhesive.7. The polymeric multilayer film of claim 1 , wherein at least one of the first or second major surfaces of the polymeric multilayer film exhibits a random network of strands and connective regions.8. The polymeric multilayer film of having a machine and cross-machine direction claim 1 , wherein the polymeric multilayer film is elastic in the cross-machine direction.9. The polymeric multilayer film of claim 1 , further comprising a liner having a major surface attached to either the first or second major surface of the polymeric multilayer film.10. The polymeric multilayer film of claim 9 , wherein the liner has a major surface exhibiting a random network of strands and connective regions.11. A graphic article comprising the polymeric multilayer film of .12. A tape comprising the ...

POLYMERIC MULTILAYER FILM

Polymeric multilayer film comprising a layer exhibiting a random network of strands and connective regions that is separable from the remaining polymeric multilayer film. The polymeric multilayer films are useful, for example, for tape and graphic articles. 1. A polymeric multilayer film comprising a layer exhibiting a random network of strands and connective regions that is separable from the remaining polymeric multilayer film.2. The polymeric multilayer film of claim 1 , further comprising at least one additional polymeric layer exhibiting a random network of strands and connective regions.3. The polymeric multilayer film of claim 1 , wherein at least one polymeric layer exhibiting a random network of strands and connective regions has an open porosity of at least 20 percent.4. The polymeric multilayer film of claim 1 , further comprising a first continuous layer.5. The polymeric multilayer film of claim 4 , wherein the first continuous layer is free of a pressure sensitive adhesive claim 4 , and wherein the layer exhibiting a random network of strands and connective regions comprises a pressure sensitive adhesive.6. The polymeric multilayer film of claim 5 , wherein the first continuous layer comprises a first pressure sensitive adhesive claim 5 , and wherein the layer exhibiting a random network of strands and connective regions comprises a second pressure sensitive adhesive.7. The polymeric multilayer film of claim 6 , wherein the first continuous layer is a skin layer.8. The polymeric multilayer film of claim 1 , wherein at least one of the first or second major surfaces of the polymeric multilayer film exhibits a random network of strands and connective regions.9. The polymeric multilayer film of having a machine and cross-machine direction claim 1 , wherein the polymeric multilayer film is elastic in the cross-machine direction.10. The polymeric multilayer film of claim 1 , further comprising a liner having a major surface attached to either the first or ...

Polymeric multilayer film

Polymeric multilayer film comprising a layer exhibiting a random network of strands and connective regions that is separable from the remaining polymeric multilayer film. The polymeric multilayer films are useful, for example, for tape and graphic articles.

Polymeric multilayer film

Polymeric multilayer film comprising a layer comprising a first pressure sensitive adhesive and exhibiting a random network of strands and connective regions. The polymeric multilayer films are useful, for example, for tape and graphic articles.

Polymeric multilayer film

Polymeric multilayer film comprising at least two adjacent layers each exhibiting a random network of strands and connective regions. The polymeric multilayer films are useful, for example, for tape and graphic articles.

Adhesive articles comprising polylactic acid polymer film and method of making

Adhesive articles comprising polylactic acid polymer film and method of making

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.

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

Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (T g ) of at least 25° 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.

multilayer films and adhesive tapes

os filmes multicamada e fitas adesivas que incluem tais filmes, sendo que os filmes multicamada incluem cloreto de polivinila plasticizado e, opcionalmente, um ou mais enchimentos. multilayer films and adhesive tapes including such films, wherein multilayer films include plasticized polyvinyl chloride and optionally one or more fillers.

Film constructions and articles

Film constructions and articles including the film constructions, wherein a film construction includes: a backing having a first major surface and a second major surface, wherein the backing includes at least one backing layer comprising a polylactic acid and an ethylene-containing copolymer comprising a polar comonomer; a tie layer disposed on the first major surface of the backing; and a release layer disposed on the tie layer.

Polymeric multilayer material and method of making the same

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.

Adhesive tapes.

Las cintas adhesivas incluyen un soporte de cloruro de polivinilo plastificado, un imprimador que incluye un terpolímero que contiene monóxido de etileno/carbono y un adhesivo.

Article comprising multilayer film

Article comprising multilayer film

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.

Core-sheath filaments and methods of printing an adhesive

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.

Polymeric multilayer film

Polymeric multilayer film comprising at least two adjacent layers each exhibiting a random network of strands and connective regions. The polymeric multilayer films are useful, for example, for tape and graphic articles.

Multilayer films and adhesive tapes

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

A film backing for releasable securement

The disclosed film backing has a multilayer extensible substrate with a securing adhesive that can secure to a surface and a tab to stretch the extensible substrate to remove the securing adhesive from the underlying surface. Stretching the extensible substrate will easily release the adhesive from the underlying surface. Therefore, a strong adhesive can be used. The multilayer extensible substrate includes an elastic layer forming the core adjacent to a plastically-deforming layers forming the skin to minimize the elasticity of the overall construction.

Adhesive tapes

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.

Composite film, method of making the same, and article including the same

A composite film comprises first and second layers. The first layer comprises a first copolymer of monomers comprising tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride, wherein the first copolymer contains at least 35 mole percent of vinylidene fluoride monomer units. The second layer is disposed on the first layer, and comprises a second copolymer comprising 50 to 83 weight percent of ethylene monomer units and at least 17 weight percent of alkyl (meth)acrylate monomer units represented by the formula (I) wherein R 1 is H or methyl, and each R 2 is independently an alkyl group having from 1 to 4 carbon atoms. Methods of making the composite film and articles including it are also disclosed.

Extrudable pressure-sensitive adhesive

Methods of bonding a pressure-sensitive adhesive to a substrate are provided. The methods include heating a styrenic block copolymer composition to provide an adhesive melt composition, wherein the styrenic block copolymer composition contains a hard segment block with a glass transition temperature of from 90°C to 220°C; masticating the adhesive melt composition; delivering the adhesive melt composition onto the substrate at a temperature that exceeds the glass transition temperature of the hard segment block by from 20°C to 150°C; and cooling the adhesive melt composition to obtain a bonded pressure-sensitive adhesive. Optionally, the substrate can be a non-film substrate, or the styrenic block copolymer composition can be provided in a core-sheath filament that includes a styrenic block copolymer core and a sheath that is non-tacky at ambient temperature.

Core-sheath filaments with a curable composition in the core

A core-sheath filament is provided that includes a curable composition. The curable composition contains an epoxy resin and a photoacid generator. Methods of making the core-sheath filament and methods of using the core-sheath filament for printing and bonding are provided. The core-sheath filaments can be used to form a cured composition having structural bonding performance.

Multilayer films and adhesive tapes

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

Polymeric multilayer film

Fitas adesivas

A presente invenção se refere a fitas adesivas que incluem um suporte de cloreto de polivinila plasticizado, um primer incluindo um terpolímero contendo etileno/monóxido de carbono e um adesivo.

Extrudable pressure-sensitive adhesive

Methods of bonding a pressure-sensitive adhesive to a substrate are provided. The methods include heating a styrenic block copolymer composition to provide an adhesive melt composition, wherein the styrenic block copolymer composition contains a hard segment block with a glass transition temperature of from 90° C. to 220° C.; masticating the adhesive melt composition; delivering the adhesive melt composition onto the substrate at a temperature that exceeds the glass transition temperature of the hard segment block by from 20° C. to 150° C.; and cooling the adhesive melt composition to obtain a bonded pressure-sensitive adhesive. Optionally, the substrate can be a non-film substrate, or the styrenic block copolymer composition can be provided in a core-sheath filament that includes a styrenic block copolymer core and a sheath that is non-tacky at ambient temperature.

Polymeric multilayer film

Polymeric multilayer film comprising at least two adjacent blown polymeric film layers, wherein at least some of the blown polymeric film layers comprise a random network of strands and connective regions, wherein the random network of strands has a first optical density and the connective regions have a second optical density, and wherein the first optical density is greater than the second optical density. The polymeric multilayer films are useful, for example, for tape and graphic articles.

Optical film and optical lens including same

An optical film includes a polarizer including an absorbing polarizer layer; an olefin layer disposed on the polarizer; and a bonding layer disposed between, and bonding together, the olefin layer and the polarizer. For substantially normally incident light, for orthogonal first and second polarization states, and for at least one wavelength in a wavelength range of about 420 nm to about 680 nm, the polarizer substantially transmits the incident light having the first, but not the second, polarization state. The bonding, olefin and absorbing polarizer layers are coextruded and co-stretched with one another. The olefin layer can have an unstructured major surface opposite the polarizer. An optical lens includes a lens substrate and the optical film disposed on, and substantially conforming to, a major surface of the lens substrate with the olefin layer facing the lens substrate.

Core-sheath filaments and methods of printing an adhesive

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.

Core-sheath filament with a thermally conductive pressure-sensitive adhesive core

A core-sheath filament having a) a core that is a thermally conductive pressure-sensitive adhesive particles and b) a non-tacky, thermoplastic sheath is provided. The thermally conductive pressure-sensitive adhesive in the core includes a (meth)acrylate-based polymeric material and thermally conductive particles. Additionally, methods of making the core-sheath filament and methods of using the core-sheath filament to print a thermally conductive pressure-sensitive adhesive are described.

Diaphragm for microspeaker and related processes

A diaphragm for a microspeaker has an organic polymer film layer in direct contact with one or two skin layers. The one or two skin layers independently include a block copolymer having hard segments and soft segments, in which a portion of the hard segments is included in crystalline, physical crosslinking domains. The organic polymer film layer is not tacky at 25 ℃. A process of making the diaphragm is also described. The process includes coextruding the block copolymer and an organic polymer to provide a multilayer film comprising the one or two skin layers and the organic polymer film layer in direct contact with the one or two skin layers. A microspeaker including the diaphragm is also described.

Core-sheath filaments and methods of printing an adhesive

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.

Core-sheath filaments including polyisobutylene compositions and methods of printing the same

Multilayer fluoropolymer films

Extrudable polyurethane articles and compositions and methods of making and printing same

The present disclosure provides an extrudable article and a composition, each including at least one polyurethane including hydroxyl groups and latent isocyanate groups in the form of uretdione groups. The hydroxyl groups are present on a first polyurethane and the latent isocyanate groups are present on either the first polyurethane or a second polyurethane and a ratio of the latent isocyanate groups to the hydroxyl groups is greater than 1.2 : 1. A method of making the extrudable article is provided including reacting in an extruder a polymerizable composition including a uretdione-containing material including a reaction product of a diisocyanate reacted with itself, a hydroxyl-containing compound, and an isocyanate-containing compound. A method of making a core-sheath filament is provided including forming a core composition of the at least one polyurethane and wrapping a sheath composition including an ethylene copolymer or a polyolefin around the core composition. Further, methods of printing a composition are provided including heating and mixing the extrudable article, such as in an extruder, to form a molten composition, then dispensing the molten composition through a nozzle onto a substrate.

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

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.

Core-sheath filaments and methods of printing an adhesive

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.

Methods of injection molding with filament adhesives and equipment for injection molding with filament adhesives

Methods of injection molding of a filament adhesive, where the filament adhesive is a pressure sensitive adhesive. Also, provided is equipment suitable for injection molding of a filament adhesive, where the filament adhesive is a pressure sensitive adhesive.

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