Abstract: An article comprising hollow ceramic microspheres and multi-component fibers is disclosed. The multi-component fibers are adhered together, and the hollow ceramic microspheres are adhered to external surfaces of the multi-component fibers. A method of making the article and use of the article for insulation are also disclosed.

Abstract: 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.

Abstract: An adhesive article for masking a portion of a substrate surface from a liquid coating applied to the surface includes a support having first and second opposed major surfaces, and a cationic or zwitterionic adhesive composition disposed on at least a portion of at least one of the first and second opposed major surfaces. The adhesive composition provides a barrier that impedes the migration of the coating past the edge of the adhesive article.

Abstract: An adhesive article for masking a portion of a substrate surface from a liquid coating applied to the surface includes a support having first and second opposed major surfaces, and a cationic or zwitterionic adhesive composition disposed on at least a portion of at least one of the first and second opposed major surfaces. The adhesive composition provides a barrier that impedes the migration of the coating past the edge of the adhesive article.

Abstract: 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.

Abstract: 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.

Abstract: Provided are sealing elements useful for isolating or diverting segments of a well in a hydraulic fracturing operation. These sealing elements resist the extreme temperatures and pressures encountered within a well, yet can be degraded or dissolved when no longer needed without use of hazardous acids or other chemicals. The sealing elements are made from a composite containing one or more resins of polylactic acid combined with a degradant that can be customized to provide facile degradation of the sealing element over a wide range of operative temperatures and pressures. These compositions may optionally include a swellant that causes the sealing element to expand after being seated against a well perforation or passageway to provide an enhanced seal.

Abstract: Particles having a first region and a second region surrounding the first region where the second region includes a copolymer extending across a thickness of the second region are described. The volume of the second region is at least 75 percent of the volume of the particle. The particles have a composition and a refractive index that each vary across the thickness of the second region.

Abstract: An adhesive article for masking a portion of a substrate surface from a liquid coating applied to the surface includes a support having first and second opposed major surfaces, and a cationic or zwitterionic adhesive composition disposed on at least a portion of at least one of the first and second opposed major surfaces. The adhesive composition provides a barrier that impedes the migration of the coating past the edge of the adhesive article.

Abstract: An adhesive article for masking a portion of a substrate surface from a liquid coating applied to the surface includes a support having first and second opposed major surfaces, and a cationic or zwitterionic adhesive composition disposed on at least a portion of at least one of the first and second opposed major surfaces. The adhesive composition provides a barrier that impedes the migration of the coating past the edge of the adhesive article.

Abstract: Sized short alumina-based inorganic oxide fiber comprises, based on the total weight of the sized short alumina-based inorganic oxide fiber: from 0.1 to 15 percent by weight of a size resin comprising a polyamide; and from 85 to 99.9 percent by weight of short alumina-based inorganic oxide fiber. Methods of making the sized short alumina-based inorganic oxide fiber and compositions comprising the sized short alumina-based inorganic oxide fiber in a polymeric matrix are also disclosed.

Abstract: A hot melt adhesive including a poly(lactide) homopolymer or copolymer with a molecular weight of about 1000 to about 40000 Daltons; and a plasticizer including an ester with about 50% to about 99% bio-based content; wherein the viscosity of the hot melt adhesive composition is about 500 to about 15,000 cPs at 350 F, and wherein the hot melt adhesive composition is substantially free of tackifying resins.

Abstract: Fibers comprising a first thermoplastic composition having a softening temperature up to 120° C and a curable resin. Also disclosed are compositions comprising a plurality of fibers, with some of the fibers comprising a first thermoplastic composition having a softening temperature up to 120° C and some of the fibers comprising a curable resin. The fibers have an aspect ratio of at least 2:1 and a maximum cross-sectional dimension up to 60 micrometers. Fluid compositions containing the fibers and methods of contacting a subterranean formation using the fibers are also disclosed.

Abstract: Described herein is a mixture comprising: (a) a non-self-crosslinking polymer; and (b) a modifying compound comprising: (i) a first functional group capable of reacting with the reaction sites of the non-self-crosslinking polymer; and (ii) a second functional group capable of crosslinking with a curing agent, wherein the first functional group is different than the second functional group. Also, described are curable polymeric compositions, and methods of making cured polymeric compositions.

Abstract: A well cement composition includes a hydraulic well cement and multi-component fibers having at least a first polymeric composition and a second polymeric composition. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition, and the first polymeric composition includes an ethylene-methacrylic acid or ethylene-acrylic acid copolymer. A method of cementing a subterranean well is also described. The method includes introducing the well cement composition into a wellbore, wherein the well cement composition further comprises water, and forming a cured cement in the wellbore.

Abstract: There is provided a controlled degradation fiber and methods of making such controlled degradation fiber, wherein at least one first material and at least one second material are selected such that the fiber has a weight loss of greater than 6 wt. % and less than 60 wt. % based on the total weight of the fiber after one week at 130° C. in the presence of water.

Abstract: Sized short alumina-based inorganic oxide fiber comprises, based on the total weight of the sized short alumina-based inorganic oxide fiber: from 0.1 to 15 percent by weight of a size resin comprising a polyamide; and from 85 to 99.9 percent by weight of short alumina-based inorganic oxide fiber. Methods of making the sized short alumina-based inorganic oxide fiber and compositions comprising the sized short alumina-based inorganic oxide fiber in a polymeric matrix are also disclosed.

Abstract: A method of making a pressure-sensitive hot melt adhesive. The method includes extruding a melt composition that includes a polymer, wherein the polymer has acidic groups covalently attached thereto, and a metal salt hydrate, wherein the metal salt hydrate has a melting point that is less than the maximum processing temperature.

Abstract: A plurality of solid particles including a thermoplastic composition having a softening temperature in a range from 50° C. to 180° C. and a blocked isocyanate resin; optionally at least some of the particles in the plurality of solid particles comprise both the thermoplastic composition and the blocked isocyanate resin. A composition comprising the plurality of particles dispersed in a fluid is also disclosed. A method of modifying a wellbore within a geological formation is also disclosed. The method includes introducing the fluid composition into the wellbore. A method of making a plurality of particles, for example, to use in the fluid composition, is also disclosed.

Abstract: Described herein is a composition comprising at least one of: X—R—(Z)n wherein X is selected from: an aziridine amide, an aziridine urea, an isocyanate, an alcohol, an amine, an epoxy, or a sulfhydryl, R is a multifunctional organic group, and Z is selected from —N3 or —C?C—R?, wherein R? is a hydrogen or a monofunctional organic group and n is from one to about 10. Also, described are mixtures, curable polymeric compositions, and methods of making cured polymeric compositions.