Abstract: A composition is described comprising a cyclic olefin; a ring opening metathesis polymerization catalyst; and at least 40 wt. % of thermally conductive particles. The thermally conductive particles are selected such that the composition after curing has a thermal conductivity of at least 1W/M*K. In one embodiment, the thermally conductive particle comprises a combination of smaller and larger thermally conductive particles. In another embodiment, the thermally conductive particles comprise boron nitride particles. Also described are (e.g. structural) adhesives, methods of bonding and articles.

Abstract: A fire-retardant pressure sensitive adhesive, article including such adhesive, and uses thereof, wherein the adhesive includes: a (meth)acrylate polymer and a non-halogenated flame retardant. The (meth)acrylate polymer includes interpolymerized monomers comprising: (a) an acid-functional (meth)acrylate monomer; (b) a hydroxy-functional (meth)acrylate monomer; (c) a noncationic nitrogen-containing monomer; and (d) a (meth)acrylate ester of a linear or branched alcohol having 3 to 4 carbon atoms and/or a (meth)acrylate ester of a linear, branched, or cyclic alcohol having 5 to 20 carbon atoms.

Abstract: A method of making a (meth)acrylate copolymer having pendent phosphate-containing groups and a pressure-sensitive adhesive that contains the (meth)acrylate copolymer having pendent phosphate-containing groups are provided. The method includes reacting a precursor (meth)acrylate copolymer having pendent carboxylic acid groups with an epoxy-functionalized phosphate compound. The pendent phosphate-containing groups on the reaction product can function as a flame retardant for the pressure-sensitive adhesive.

Abstract: A method of making a (meth)acrylate copolymer having pendent phosphate-containing groups and a pressure-sensitive adhesive that contains the (meth)acrylate copolymer having pendent phosphate-containing groups are provided. The method includes reacting a precursor (meth)acrylate copolymer having pendent carboxylic acid groups with an epoxy-functionalized phosphate compound. The pendent phosphate-containing groups on the reaction product can function as a flame retardant for the pressure-sensitive adhesive.

Abstract: Provided are non-woven fibrous webs, methods and assemblies thereof. The non-woven fibrous web comprises a plurality of melt-blown fibers. The plurality of melt-blown fibers include a thermoplastic polymer blended with a phosphinate and/or polymeric phosphonate. The provided non-woven articles can afford a fine fiber diameter for enhanced acoustic insulation properties, dimensional stability, and superior flame-retardant properties when compared with conventional non-woven articles having similar fiber diameters.

Abstract: An assembly includes an enclosure including first and second regions spaced apart along a first direction, and a plurality of spaced apart acoustic baffles arranged along a second direction different from the first direction and disposed in the enclosure between the first and second regions. The plurality of spaced apart acoustic baffles includes adjacent first and second acoustic baffles. Each of the first and second acoustic baffles include an acoustically absorptive layer disposed on a sheet having a specific airflow resistance greater than 200 MKS Rayl. The first and second acoustic baffles define a channel therebetween. At least a portion of the channel extends along a longitudinal direction making an oblique angle with the first direction.

Abstract: An article with a film adhered includes a film layer, a glass particle-containing layer, and an adherend in this order to facilitate high flame retardance. A laminate used to produce such article.

Abstract: A decorative sheet according to an embodiment of the present disclosure contains a film layer having an upper face and a lower face, and a pressure-sensitive adhesive layer adhered to the lower face of the film layer, the pressure-sensitive adhesive layer containing an acrylic-based adhesive and 5 part by mass to 10 part by mass % of ammonium polyphosphate per 100 part by mass of the acrylic-based adhesive.

Abstract: Fiber-reinforced composite materials include a matrix of a thermoplastic polyamide resin, at least 3 weight% of at least one impact modifier, and 7-60 wt% fiber reinforcing agent of discontinuous meta-aramid fibers. The composite material is melt processable, and is impact resistant as measured by an unnotched Izod test method according to ASTM D4812 having a value of at least 12 ft-lbs/in (640 J/m). The composite materials can be used to prepare articles such as safety articles.

Abstract: Adhesives comprising: a) 35-85 weight percent of a pressure sensitive adhesive comprising: i) a polymer selected from rubbers and polyacrylate polymers and ii) optionally one or more tackifiers; and dispersed therein b) 15-50 weight percent fire retardant (FR) particles comprising one or more phosphorus-containing compounds selected from organophosphine oxides and organophosphi-nates. In some embodiments, the phosphorus-containing compounds comprise 35-65 weight percent of an organophosphine oxide and 65-35 weight percent of an organophosphinate. The FR particles may have a D50 particle size of 1-120 micrometers, 40-120 micrometers, or 70-120 micrometers. Adhesive films comprising the adhesives described herein may be free-standing adhesive films or adhesive layers comprised in tapes.

Abstract: A composition is described comprising a cyclic olefin; a ring opening metathesis polymerization catalyst; and at least 40 wt. % of thermally conductive particles. The thermally conductive particles are selected such that the composition after curing has a thermal conductivity of at least 1W/M*K. In one embodiment, the thermally conductive particle comprises a combination of smaller and larger thermally conductive particles. In another embodiment, the thermally conductive particles comprise boron nitride particles. Also described are (e.g. structural) adhesives, methods of bonding and articles.

Abstract: Pressure sensitive adhesives and tapes having flame-retardant properties include a substrate layer and a layer of pressure sensitive adhesive disposed on the substrate layer. The pressure sensitive adhesive is a UV-cured composition of a curable composition. The curable composition includes a polymerizable (meth)acrylate-based mixture, a polymerizable aromatic (meth)acrylate oligomer, a liquid flame retarding agent, and at least one UV initiator. The UV-cured composition is an optically clear pressure sensitive adhesive with flame retarding properties.

Abstract: An assembly includes an enclosure including first and second regions spaced apart along a first direction, and a plurality of spaced apart acoustic baffles arranged along a second direction different from the first direction and disposed in the enclosure between the first and second regions. The plurality of spaced apart acoustic baffles includes adjacent first and second acoustic baffles. Each of the first and second acoustic baffles include an acoustically absorptive layer disposed on a sheet having a specific airflow resistance greater than 200 MKS Rayl. The first and second acoustic baffles define a channel therebetween. At least a portion of the channel extends along a longitudinal direction making an oblique angle with the first direction.

Abstract: An adherable film includes a substrate that is substantially free of a flame retardant material and has a top major surface and a bottom major surface. An adhesive layer disposed on the bottom major surface of the substrate has a continuous pattern. The adhesive layer is made of an adhesive that is substantially free of a flame retardant material. In a plan view, the continuous pattern defines a plurality of discontinuous non-adhesive portions of the substrate without the adhesive. Each discontinuous non-adhesive portion is completely surrounded by the continuous pattern. The adherable film including the adhesive layer having the continuous pattern exhibits an improved flame retarding characteristic relative to a discontinuous adherable film having a substrate with a same material composition as that of the substrate of the adherable film and a discontinuous adhesive layer with a same material composition as that of the adhesive layer of the adherable film.

Abstract: A fire resistant (FR) pressure sensitive adhesive (PSA) comprises a blend of: a) a (meth)acrylate polymer comprising cationic monomer units; and b) a non-halogenated flame retardant. In some embodiments, the cationic monomer units comprise cationic quaternary amine groups. The (meth)acrylate polymer may additionally comprise anionic monomer units, in which case the molar ratio of anionic monomer units present in the polymer to cationic monomer units present in the polymer is typically less than 0.9. The FR PSA may be aqueous based and may be free of common solvents. The FR PSA may demonstrate improved flame retardance with good compatibility between PSA and flame retardant, and may retain compatibility even at high loadings of flame retardant.

Abstract: Provided is a multilayer thermal insulator and related method that use a non-woven core layer comprising non-meltable and flame-resistant polymeric fibers. One or more scrims are disposed on the opposing major surfaces of the non-woven core layer, and a peripheral edge of the one or more scrims is either edge sealed or capable of being edge sealed to substantially encapsulate the non-woven core layer within the one or more scrims. Optionally, a binder is provided on the scrims or non-woven core layer to facilitate edge sealing. The provided insulators are essentially dust-free and capable of passing stringent flammability standards.

Abstract: Provided are non-woven fibrous webs, methods and assemblies thereof. The non-woven fibrous web comprises a plurality of melt-blown fibers. The plurality of melt-blown fibers include a thermoplastic polymer blended with a phosphinate and/or polymeric phosphonate. The provided non-woven articles can afford a fine fiber diameter for enhanced acoustic insulation properties, dimensional stability, and superior flame-retardant properties when compared with conventional non-woven articles having similar fiber diameters.

Abstract: Provided is a multilayer thermal insulator and related method that use a non-woven core layer comprising non-meltable and flame-resistant polymeric fibers. One or more scrims are disposed on the opposing major surfaces of the non-woven core layer, and a peripheral edge of the one or more scrims is either edge sealed or capable of being edge sealed to substantially encapsulate the non-woven core layer within the one or more scrims. Optionally, a binder is provided on the scrims or non-woven core layer to facilitate edge sealing. The provided insulators are essentially dust-free and capable of passing stringent flammability standards.

Abstract: The present disclosure relates to a low-combustibility film construction. The film construction includes a film layer, a first adhesive layer with a fire-retardant additive of at least 41% by weight and a second adhesive layer. The total thickness of the adhesive layers is in the range of 18.5 to 44.5 microns. The total thickness of the fire retardant adhesive layer is 32% to 85% of the total adhesive thickness.

Abstract: A scrim is described comprising a plurality of fibers and a coating disposed on the scrim wherein the coating comprises a binder and a flame retardant additive. The scrim has a basis weight less than or equal to 200 grams/m2 and passes the UL94-V0 flammability standard. The scrim may be incorporated into other articles and methods. Also described is a flame retardant coating composition.