Polymeric Membrane Useful As A Commercial Roofing Membrane

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer. The thermoplastic elastomer layer includes a filler component that is at least about 30 wt % of the thermoplastic elastomer layer. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer. 1. A polymeric membrane comprising:a first thermoplastic elastomer layer, comprising a styrenic thermoplastic and a filler component that is at least about 30 wt % of the thermoplastic elastomer layer.2. The polymeric membrane of wherein the styrenic thermoplastic comprises ethylene and butadiene blocks.3. The polymeric membrane of wherein the styrenic thermoplastic is a styrene-ethylene-butadiene-styrene thermoplastic.4. The polymeric membrane of claim 1 , further comprising a second thermoplastic elastomer layer in contact with the first thermoplastic elastomer layer.5. The polymeric membrane of claim 4 , wherein at least one of the first and the second thermoplastic elastomer independently comprises a thermoplastic polymer having at least one glass transition temperature in a range of from about 30° C. to about 150° C.6. The polymeric membrane of claim 4 , wherein the second thermoplastic elastomer layers independently comprises an acrylate claim 4 , a methacrylate claim 4 , a poly(methyl methacrylate) claim 4 , a siloxane claim 4 , a styrene-isoprene block copolymer claim 4 , a styrene ethylene butylene styrene polymer claim 4 , a hydrogenated styrene ethylene butylene styrene polymer claim 4 , a polyamide-imide claim 4 , a polyethersulphone claim 4 , a polyetherimide claim 4 , a polyarylate claim 4 , a polysulphone claim 4 , a polyvinylchloride claim 4 , an acrylonitrile butadiene styrene claim 4 , a polystyrene claim 4 , a polyetherimide claim 4 , a metallocene-catalyzed polyethylene claim 4 , a polyethylene claim 4 , a polyurethane claim 4 , a fluoroelastomer claim 4 , a ...

Polymeric Membrane Useful As A Commercial Roofing Membrane

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer that comprises a styrenic thermoplastic. The thermoplastic elastomer layer has a foam structure. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer. 1. A polymeric membrane comprising:a first thermoplastic elastomer layer, comprising a styrenic thermoplastic, wherein the first thermoplastic elastomer layer has a foam structure.2. The polymeric membrane of wherein the styrenic thermoplastic comprises ethylene and butadiene blocks.3. The polymeric membrane of wherein the styrenic thermoplastic is a styrene-ethylene-butadiene-styrene thermoplastic.4. The polymeric membrane of claim 1 , further comprising a second thermoplastic elastomer layer in contact with the first thermoplastic elastomer layer.5. The polymeric membrane of claim 4 , wherein at least one of the first and the second thermoplastic elastomer independently comprises a thermoplastic polymer having at least one glass transition temperature in a range of from about 30° C. to about 150° C.6. The polymeric membrane of claim 4 , wherein the second thermoplastic elastomer layers independently comprises an acrylate claim 4 , a methacrylate claim 4 , a poly(methyl methacrylate) claim 4 , a siloxane claim 4 , a styrene-isoprene block copolymer claim 4 , a styrene ethylene butylene styrene polymer claim 4 , a hydrogenated styrene ethylene butylene styrene polymer claim 4 , a polyamide-imide claim 4 , a polyethersulphone claim 4 , a polyetherimide claim 4 , a polyarylate claim 4 , a polysulphone claim 4 , a polyvinylchloride claim 4 , an acrylonitrile butadiene styrene claim 4 , a polystyrene claim 4 , a polyetherimide claim 4 , a metallocene-catalyzed polyethylene claim 4 , a polyethylene claim 4 , a polyurethane claim 4 , a fluoroelastomer claim 4 , a polyolefin claim 4 , an EPDM claim 4 , a rubber claim 4 , ...

Polymeric Membrane Useful As A Commercial Roofing Membrane

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer. The thermoplastic elastomer is a styrenic thermoplastic. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer. 1. A polymeric membrane comprising:a first thermoplastic elastomer layer consisting essentially a comprising a styrenic thermoplastic.2. The polymeric membrane of wherein the styrenic thermoplastic comprises ethylene and butadiene blocks.3. The polymeric membrane of wherein the styrenic thermoplastic is a styrene-ethylene-butadiene-styrene thermoplastic.4. The polymeric membrane of claim 1 , further comprising a second thermoplastic elastomer layer in contact with the first thermoplastic elastomer layer.5. The polymeric membrane of claim 4 , wherein at least one of the first and the second thermoplastic elastomer independently comprises a thermoplastic polymer having at least one glass transition temperature in a range of from about 30° C. to about 150° C.6. The polymeric membrane of claim 4 , wherein the second thermoplastic elastomer layers independently comprises an acrylate claim 4 , a methacrylate claim 4 , a poly(methyl methacrylate) claim 4 , a siloxane claim 4 , a styrene-isoprene block copolymer claim 4 , a styrene ethylene butylene styrene polymer claim 4 , a hydrogenated styrene ethylene butylene styrene polymer claim 4 , a polyamide-imide claim 4 , a polyethersulphone claim 4 , a polyetherimide claim 4 , a polyarylate claim 4 , a polysulphone claim 4 , a polyvinylchloride claim 4 , an acrylonitrile butadiene styrene claim 4 , a polystyrene claim 4 , a polyetherimide claim 4 , a metallocene-catalyzed polyethylene claim 4 , a polyethylene claim 4 , a polyurethane claim 4 , a fluoroelastomer claim 4 , a polyolefin claim 4 , an EPDM claim 4 , a rubber claim 4 , copolymers thereof claim 4 , or mixtures thereof.7. The polymeric membrane of ...

Earplug with stem comprising a sleeve

A hearing-protective earplug ( 1 ) with a resilient polymeric foam body ( 10 ) and with a grippable stem ( 110 ) that includes a forward portion ( 111 ) with an annular sleeve ( 112 ) that at least partially defines an open-ended, front-facing cavity ( 114 ) within which a rearward portion ( 21 ) of the resilient polymeric foam body resides.

Compositions and Foam Compositions Containing Composite Particles, Articles, Composite Particles, and Methods

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided. 1. A composition comprising: an uncrosslinked thermoplastic nitrogen-containing matrix material and a plurality of composite particles distributed in the uncrosslinked thermoplastic nitrogen-containing matrix material , wherein the composition exhibits an elastic modulus of 0.5 megaPascals (MPa) or greater , and wherein the plurality of composite particles each comprises:a chemical blowing agent particle encapsulated within a shell comprising an uncrosslinked thermoplastic material, wherein the uncrosslinked thermoplastic material exhibits a complex viscosity of 3,700 Pa·s or greater at a decomposition temperature of the chemical blowing agent particle.2. The composition of claim 1 , wherein the uncrosslinked thermoplastic nitrogen-containing matrix material comprises a polyurethane.3. The composition of claim 1 , wherein the uncrosslinked thermoplastic nitrogen-containing matrix material comprises an acid-terminated polyamide or an amine-terminated polyamide.4. The composition of claim 1 , further comprising a crosslinking agent claim 1 , a crosslink catalyst claim 1 , or both.5. The composition of claim 1 , wherein the plurality of composite particles is present ...

FOAMS AND METHODS OF MAKING

Reaction mixtures, foams prepared from the reaction mixtures, articles containing the foams, and methods of making the foams are provided. The polymeric material in the foam is formed from a polymerizable composition that includes a di(meth)acrylate oligomer and a monomer having a single ethylenically unsaturated group. The foams are highly filled (e.g., at least 60 volume percent of the foam is the filler) and can be thermally conductive. Although the foams contain a large amount of filler, the foams can be compressed at least 40 volume percent with an applied pressure of 50 pounds per square inch (345 kiloPascals). 1. A reaction mixture comprising: 1) a urethane di(meth)acrylate in an amount of 30 to 70 weight percent based on a total weight of the polymerizable composition, the urethane di(meth)acrylate having a number average molecular weight of at least 5,000 grams/mole and having a hydrophobic group selected from an olefinic group with at least 12 carbon atoms or from a carbocyclic aromatic group;', '2) at least one monomer having a single (meth)acryloyl group in an amount of 30 to 70 weight percent based on a total weight of the polymerizable composition;, 'a) a polymerizable composition comprising'}b) an azo compound in an amount in a range of 20 to 70 grams per 100 grams of the polymerizable composition, wherein the azo compound is a free radical generator and generates nitrogen gas when heated; andc) a filler in an amount of at least 60 volume percent based on a total volume of the polymerizable composition plus filler, wherein the filler is spherical or roundish with a circularity greater than 0.70 and at least 90 percent of the filler has a longest dimension greater than 50 micrometers.2. The reaction mixture of claim 1 , wherein at least 90 percent of the filler has a longest dimension that is no greater than 1 millimeter.3. The reaction mixture of claim 1 , wherein the filler is a thermally conductive filler.4. The reaction mixture of claim 1 , wherein ...

Polymeric foam layer and methods of making the same

Polymeric foam layer comprising a star polymer, wherein the polymeric foam layer has a thickness up to 25,700 micrometers, and methods of making the same. Exemplary uses of polymeric foam layers described herein including a finishing pad for silicon wafers and vibration damping.

POLYMERIC FOAM LAYER AND METHODS OF MAKING THE SAME

Polymeric foam layer having a thickness up to 25,700 micrometers, having first and second opposed major surfaces, and comprising foam features extending from or into the first major surface by at least 100 micrometers, and having a Tin a range from −125° C. to 150° C., wherein the first and second opposed major surfaces are free of exposed internal porous cells (i.e., less than 10 percent of the surface area of each of the first and second major surface has any exposed porous cells) and wherein at least 40 percent by area of each major surface has an as-cured surface; and methods of making the same. Exemplary uses of polymeric foam layers described herein including a finishing pad for silicon wafers and vibration damping. 1. A polymeric foam layer having a thickness up to 25 ,700 micrometers , having first and second opposed major surfaces , and comprising foam features extending from or into the first major surface by at least 100 micrometers , and having a glass transition temperature , T , in a range from −125° C. to 150° C. , wherein the first and second opposed major surfaces are free of exposed internal porous cells and wherein at least 40 percent by area of each major surface has an as-cured surface.2. The polymeric foam layer of comprising a thermoplastic material.3. The polymeric foam layer of claim 2 , wherein the thermoplastic material comprises a polycarbonate claim 2 , a polyacrylic claim 2 , a polymethacrylic claim 2 , an elastomer claim 2 , a styrenic block copolymer claim 2 , a styrene-isoprene-styrene claim 2 , a styrene-ethylene/butylene-styrene block copolymer claim 2 , a polybutadiene claim 2 , a polyisoprene claim 2 , a polychloroprene claim 2 , a random copolymer of styrene and diene styrene-butadiene rubber claim 2 , a block copolymer of styrene and diene styrene-butadiene rubber claim 2 , an ethylene-propylene-diene monomer rubber claim 2 , a natural rubber claim 2 , an ethylene propylene rubber claim 2 , a polyethylene-terephthalate claim 2 ...

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 , ...

COMPOSITE PARTICLES, COMPOSITIONS AND FOAM COMPOSITIONS CONTAINING COMPOSITE PARTICLES, ARTICLES, AND METHODS OF MAKING AND USING SAME

Composite particles are provided including a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are compositions and foam compositions containing the composite particles. Further, articles are provided including the foam compositions, such as a sheet, tape, or hearing protection article. Methods of making and using the foam compositions are additionally described herein. 1. A composite particle comprising: a chemical blowing agent particle encapsulated within a shell comprising an uncrosslinked thermoplastic material , wherein the uncrosslinked thermoplastic material exhibits a complex viscosity of 3 ,700 Pascal seconds (Pa·s) or greater at a decomposition temperature of the chemical blowing agent particle and wherein the uncrosslinked thermoplastic material has a glass transition temperature below the decomposition temperature of the chemical blowing agent.2. The composite particle of claim 1 , wherein the chemical blowing agent is selected from a diazocompound claim 1 , a sulfonyl hydrazide claim 1 , a tetrazole claim 1 , a nitrosocompound claim 1 , an acyl sulfonyl hydrazide claim 1 , hydrazones claim 1 , thiatriazoles claim 1 , azides claim 1 , sulfonyl azides claim 1 , oxalates claim 1 , thiatrizene dioxides claim 1 , or combinations thereof.3. The composite particle of claim 1 , wherein the uncrosslinked thermoplastic material is selected from a starch claim 1 , polyvinyl pyrollidinone (PVP) claim 1 , a copolymer of vinylpyrrolidone and vinyl acetate claim 1 , a polypropylene-based elastomer claim 1 , a styrene-isoprene-styrene copolymer claim 1 , a (C1-C3)alkyl cellulose claim 1 , a hydroxyl (C1-C3)alkylcellulose; carboxy methylcellulose claim 1 , sodium carboxymethyl cellulose claim 1 , a polyoxazoline claim 1 , a ...

A CUSHION FOR A HEARING PROTECTOR OR AUDIO HEADSET

A ring-shaped cushion for a hearing protector or audio headset. The cushion has a circumferential contact pad for sealing on a wearer's head and an attachment for sealing with an earmuff. The cushion further has a sound insulation tube that inwardly defines an inner space. The sound insulation tube extends between the contact pad and the attachment. The cushion has a ventilation passage that extends entirely through the cushion between an inlet opening in the contact pad and an area outside of the inner space. The cushion may further include one or more physiological sensors to monitor the health of a wearer. 1. A ring-shaped cushion for a hearing protector or audio headset , comprising a contact pad for sealing on a wearer's head and an attachment for sealing with an earmuff , the cushion further having a sound insulation tube that inwardly defines an inner space , wherein the inner space corresponds to a space that is encircled by the sound insulation tube , the sound insulation tube being ring-shaped and extending between the contact pad and the attachment wherein the sound insulation tube forms the only ring-shaped airtight seal connecting the contact pad and the attachment , and wherein the cushion comprises a ventilation passage extending entirely through the cushion between an inlet opening in the contact pad and an area outside of the inner space.2. The cushion of claim 1 , comprising a plurality of inlet openings claim 1 , wherein the ventilation passage extends between the plurality of inlet openings in the contact pad and an area outside of the inner space.3. The cushion of claim 2 , wherein the inlet opening or the inlet openings provide an open area and wherein the contact pad outside the inlet opening(s) provides a surface area claim 2 , and wherein the ratio of the open area relative to the surface area is within a range of 30% to 45%.4. The cushion of claim 1 , wherein the contact pad protrudes radially outwardly from a proximal side of the sound ...

Polymeric membrane useful as a commercial roofing membrane

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.

Expandable microsphere, markable article, marked article, and method of making the same

A PTSM-coated expandable microsphere comprises a polymer shell enclosing an interior volume containing at least one blowing agent. The polymer shell has an outer surface with photothermal susceptor material disposed on at least a portion thereof. If heated to at least one temperature greater than 25 °C, each of the expandable microspheres expands, but does not rupture, the polymer shell by a sufficient amount to at least double the interior volume. A markable comprises a substrate and a viewable layer secured thereto. The viewable layer comprises a binder material retaining the PTSM-coated expandable microspheres. A method of marking a markable article comprises imagewise exposing the PTSM-coated expandable microspheres of the markable article to at least sufficient electromagnetic radiation to cause the PTSM-coated expandable microspheres to expand thereby creating a predetermined image. A marked article preparable according to the method is also disclosed.

Polymeric membrane useful as a commercial roofing membrane

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer that comprises a styrenic thermoplastic. The thermoplastic elastomer layer has a foam structure. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer.

Polymeric membrane useful as a commercial roofing membrane

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer. The thermoplastic elastomer is a styrenic thermoplastic. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer.

Foam compositions and methods of making same

Open cell foam compositions are provided including a thermoplastic polymeric matrix and at least one filler. In some embodiments of the foam compositions, the filler includes nepheline syenite.Methods of making the foam compositions are described, the methods including (a) obtaining a composite materials containing a first thermoplastic polymer having a filler component and a blowing agent distributed therein; (b) coextruding the composite material with a second thermoplastic polymer and a third thermoplastic polymer to form a three-layer composition, wherein the three-layer composition includes a middle layer comprising an open cell foam formed from the foam composition, and the middle layer is disposed between the first and the second outer layers formed from the second and the third thermoplastic polymers, respectively; and (c) separating the middle layer from each of the first and the second outer layer. The first thermoplastic polymer is different from the second and the third thermoplastic polymers.

Composite particles, compositions and foam compositions containing composite particles, articles, and methods of making and using same

Composite particles are provided including a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are compositions and foam compositions containing the composite particles. Further, articles are provided including the foam compositions, such as a sheet, tape, or hearing protection article. Methods of making and using the foam compositions are additionally described herein.

Polymeric foam layer and methods of making the same

Polymeric foam layer having a thickness up to 25,700 micrometers, having first and second opposed major surfaces, and comprising foam features extending from or into the first major surface by at least 100 micrometers, and having a Tg in a range from -125°C to 150°C, wherein the first and second opposed major surfaces are free of exposed internal porous cells (i.e., less than 10 percent of the surface area of each of the first and second major surface has any exposed porous cells) and wherein at least 40 percent by area of each major surface has an as-cured surface; and methods of making the same. Exemplary uses of polymeric foam layers described herein including a finishing pad for silicon wafers and vibration damping.

Polymeric membrane useful as a commercial roofing membrane

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer that comprises a styrenic thermoplastic. The thermoplastic elastomer layer has a foam structure. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer.

Coextruded polymeric layer

Coextruded polymeric layer having first and second opposed major surfaces, the coextruded polymeric layer comprising foam and the coextruded polymeric layer comprising features extending from or into the first major surface by at least 100 micrometers, the first major surface comprising a first material having a first percent elongation at break, the second major surface comprising a second material having a second percent elongation at break, wherein the first percent elongation at break is greater than 100 percent of the second percent elongation at break. Coextruded polymeric layers described herein are useful, for example, in vibration damping applications (e.g., a vibration damping laminate comprising a kinetic spacer comprising the coextruded polymeric layers).

System and method for determining personal protective equipment comfort

A method for determining personal protective equipment (PPE) comfort for an individual wearer includes defining a first anatomical shape data representative of an anatomical area of the individual wearer prior to donning a PPE, a second anatomical shape data representative of the anatomical area of the individual wearer after donning the PPE, and comparing the first anatomical shape data with the second anatomical shape data. The method further includes determining a soft skin tissue deformation at a plurality of predetermined anatomical positions based on the comparison between the first anatomical shape data and the second anatomical shape data, and determining a displacement comfort threshold (CTd) value based on the soft skin tissue deformation. The method also includes determining a pressure pain threshold (PPT) value, and determining a comfort metric based on the PPT values and the CTd values. The method also includes generating a notification corresponding to the comfort metric.

System and method for determining personal protective equipment comfort

A method for determining personal protective equipment (PPE) comfort for an individual wearer includes defining a first anatomical shape data representative of an anatomical area of the individual wearer prior to donning a PPE, a second anatomical shape data representative of the anatomical area of the individual wearer after donning the PPE, and comparing the first anatomical shape data with the second anatomical shape data. The method further includes determining a soft skin tissue deformation at a plurality of predetermined anatomical positions based on the comparison between the first anatomical shape data and the second anatomical shape data, and determining a displacement comfort threshold (CTd) value based on the soft skin tissue deformation. The method also includes determining a pressure pain threshold (PPT) value, and determining a comfort metric based on the PPT values and the CTd values. The method also includes generating a notification corresponding to the comfort metric.

System and method for determining personal protective equipment comfort

A method for determining personal protective equipment (PPE) comfort for an individual wearer includes defining a first anatomical shape data representative of an anatomical area of the individual wearer prior to donning a PPE, a second anatomical shape data representative of the anatomical area of the individual wearer after donning the PPE, and comparing the first anatomical shape data with the second anatomical shape data. The method further includes determining a soft skin tissue deformation at a plurality of predetermined anatomical positions based on the comparison between the first anatomical shape data and the second anatomical shape data, and determining a displacement comfort threshold (CTd) value based on the soft skin tissue deformation. The method also includes determining a pressure pain threshold (PPT) value, and determining a comfort metric based on the PPT values and the CTd values. The method also includes generating a notification corresponding to the comfort metric.

Compositions and Foam Compositions Containing Composite Particles, Articles, Composite Particles, and Methods

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and articles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

Compositions and foam compositions containing composite particles, articles, composite particles, and methods

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

System and method for determining personal protective equipment comfort

Compositions and foam compositions containing composite particles, articles, composite particles, and methods

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and articles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.