Abstract: Blown film made from terpolymers, and terpolymers containing units derived from propylene, ethylene and 1-butene.

Abstract: The present invention addresses the problem of providing a laminated polyester film that has high reusability and is suitable for processing during a post process. This laminated polyester film comprises a polyester film and a layer X that satisfies the following conditions. Condition 1: 20??XP?45 Condition 2: 3.0??XH?10?XP (mN/m): Polar component of the surface free energy of the layer X ?XH (mN/m): Hydrogen bond component of the surface free energy of the layer X.

Abstract: A manufacturing method of a proton conducting membrane includes a pressing process, a hydrolyzing process, and a peeling process. In the pressing process, a resin film is brought into contact with at least one surface of an electrolyte resin material dissolved in polyphosphoric acid and pressure is applied to form the electrolyte resin material into a membrane shape. In the hydrolyzing process, the polyphosphoric acid is hydrolyzed and phosphorylated after the pressing process. In the peeling process, the resin film is peeled off from the electrolyte resin material having the membrane shape after the hydrolyzing process to obtain the proton conducting membrane made of the electrolyte resin material containing phosphoric acid. The resin film is made of a resin having an acidic substituent.

Abstract: The method includes: a) a step of stacking and shaping a prepreg according to the shape of a surface of the structure; b) a step of vacuum-pressurizing the stacked and shaped prepreg; c) a step of heating and curing the vacuum-pressurized prepreg to produce a cured product of the prepreg; and d) a step of bonding the cured product to the surface of the structure. The prepreg includes: a resin composition including an ethylenically unsaturated group-containing resin (A) and a polymerization initiator (B); and reinforcement fibers (C). The polymerization initiator (B) has a 10-hour half-life temperature of 60° C. to 75° C. This method for reinforcing and repairing the structure allows a structure having excellent workability and excellent mechanical strength to be obtained.

Abstract: A prepreg including a thermosetting resin composition and a self-assembled carbon fiber bundle impregnated with the thermosetting resin composition.

Abstract: Provided is a prepreg including: a resin composition including a urethane (meth)acrylate (A), a polymerization initiator (B), and an amine catalyst (C); and reinforcement fibers (D). The urethane (meth)acrylate (A) is a reaction product of a polyisocyanate compound (al) and a hydroxyl group-containing compound (a2), the polyisocyanate compound (a1) including polymethylene polyphenyl polyisocyanate and diphenylmethane diisocyanate, the hydroxyl group-containing compound (a2) including a compound having a hydroxyl group and a (meth)acryloyl group.

Abstract: A depolymerization reaction of a polyester input with an organocatalyst and an alcohol solvent produces (i) a recycled monomeric or oligomeric diester from the polyester, (ii) the organocatalyst for reuse, and (iii) the alcohol solvent, which may also be reused. The presence of volatile impurities, such as water, acetyl aldehyde, and organic solvents can interfere with the success of the depolymerization reaction. A pre-reaction distillation step removes volatile impurities from the polyester input resulting in an efficient depolymerization reaction with consistency among batches. The polyester input may be further treated with a water azeotrope to remove water from the polyester input prior to the pre-reaction distillation.

Abstract: A process for preparing a composition from graphite material by contacting the graphite material with a main solvent comprising at least 10% by weight, with respect to a total weight of the main solvent, of a vinyl aromatic monomer alone or in a mixture up to 50% by weight with additional copolymerizable monomers, thereby forming a starting composition; subjecting to an ultrasound treatment with a frequency spectrum ranging between 18 kHz and 1000 kHz, at a pressure equal to or higher than 2 bar absolute and in a container or sonication chamber wherein no separated phase of fluid at the gaseous phase contacts said composition; and polymerizing at least 1% of the vinyl aromatic monomer present in the main solvent, wherein the composition is at least partially polymerized and contains graphene and graphene nanoplatelets durably dispersed in the solvent, and the composition is without any evident formations of deposits or separated phases for at least 30 days.

Abstract: A polymer-based foam composition includes an ethylene-based polymer matrix, graphene particles dispersed in the matrix, at least one crosslinking agent, at least one blowing agent, and optionally, kickers, crosslinking co-agents, plasticizers or combinations thereof. The polymer-based foam composition is particularly useful for applications that require lightweight and sound insulation properties.

Abstract: Disclosed are hierarchical buoyant materials comprising porous components having multiple length scales that provide reduced density, higher strength, and improved buoyancy. The hierarchical buoyant materials include components having at least two length scales including a first porous material having elements characterized by a first linear length scale and a second porous material having elements characterized by a second linear length scale. The first porous material includes hollow microspheres, and the second porous material provides low effective density via geometrical arrangements. The second linear length scale is substantially different than the first linear length scale in terms of size, e.g., diameter, length, or distance.

Abstract: The invention relates to a method of producing styrene monomers by depolymerization (breakdown) of a styrene-copolymer-containing polymer mass, a device for carrying out the method, the use of a styrene copolymer for producing styrene monomers by thermal depolymerization and the use of a styrene copolymer as an additive in the thermal depolymerization of polystyrene. The polymer mass contains I) 10 to 100 wt %, relative to the total weight of the polymer mass (A), of a styrene copolymer (I), comprising: Ia) 10 to 99 wt %, relative to the styrene copolymer (I), of repeating units (Ia) that originate from styrene; and Ib) 1 to 90 wt %, relative to the styrene copolymer (I), of repeating units (Ib) that originate from a monomer the homopolymers of which have a ceiling temperature of below 350° C.; and II) optionally 0 to 90 wt % polystyrene (II).

Abstract: The disclosure provides compositions comprising a polymer, a Lewis acid, and a solvent and methods of using the same for ring closing depolymerization of polymers.

Abstract: The present invention relates to a process for recovering raw materials from a polyurethane foam, comprising step (A), the providing of a polyurethane foam based on an isocyanate component and a polyol component, wherein the polyurethane foam comprises a cell structure containing one or more volatile accompanying substances, namely a component X selected from the group consisting of oxygen, a blowing agent, a disinfectant and a mixture of two or more of the above, wherein component X comprises at least oxygen, step (B), the chemolysis of the polyurethane foam with a chemolysis reagent, wherein the polyurethane foam is degassed before being contacted with the chemolysis reagent, wherein at least oxygen, but preferably all constituents of component X or any gaseous breakdown products thereof that have formed are removed from the chemolysis apparatus in gaseous form via a gas removal device at a pressure of not more than 960 mbar(abs.) and a temperature of not more than 120° C.

Abstract: A novel additive for recycling thermoset materials, its related recyclable thermoset composition and its application are disclosed. Specifically, the composition of the additive comprises at least one copolymer that has at least one carbamate group, at least one carbonate group and/or at least one urea group, and a number-average molecular weight of the copolymer is between 100 and 50,000 Da.

Abstract: A chitosan-graphene (CSG) composite material and methods of making the composite material are provided. The CSG composite material is useful for removing microorganisms such as cyanobacteria and blue-green algae from water contaminated with a harmful algal bloom (HAB). The CSG composite material can also remove algal toxins such as microcystins from HAB contaminated water.

Abstract: To provide an inorganic filler fluidity modifier for improving the fluidity of an inorganic filler.

Abstract: The present disclosure describes crosslinking agents derived from glycerol and/or waste poly(ethylene terephthalate) of Formula I and Formula II which may find use in various polymer applications, including as an additive in personal care products.

Abstract: One embodiment of the present specification provides a siloxane compound represented by Chemical Formula 1 below: In Chemical Formula 1, R1a and R1b are each independently a substituted or unsubstituted straight or branched-chain alkyl group having 1 to 16 carbon atoms, R2a and R2b are each independently a substituted or unsubstituted straight or branched-chain alkyl group having 1 to 16 carbon atoms, R3a and R3b are each independently a substituted or unsubstituted straight or branched-chain alkylene group having 1 to 16 carbon atoms, R4a, R4b, R5a, and R5b are each independently hydrogen, a substituted or unsubstituted straight or branched alkyl group having 1 to 16 carbon atoms, or a substituted or unsubstituted straight or branched-chain heteroalkyl group having 1 to 16 carbon atoms, m1 and m2 are each an integer from 0 to 2, and when m1 and m2 are each 0, a plurality of OR2a and OR2b are the same or different, and when m1 and m2 are each 2, a plurality of R1a and R1b are the same or different, and x

Abstract: The present invention relates to a silicone pressure sensitive adhesive composition comprising a boron-containing additive containing a boron-containing compound selected from the group consisting of a boroxine-based compound and a borane-based compound containing a covalent boron-nitrogen bond. The present invention also relates to an article such as a pressure sensitive adhesive tape comprising the silicone pressure sensitive adhesive composition.

Abstract: A liquid additive composition containing a fluoropolymer; an organophosphite antioxidant; a sterically hindered phenol antioxidant; and one or more hydrocarbon polymer dispersants provided improved processing and product appearance in film applications, extrusion blow molding and as a masterbatch enhancer.

Abstract: Described herein are improved thermoplastic composites, which demonstrate excellent physical properties, such as yield strength, ultimate tensile strength, toughness, elongation, and, optionally, superior tunable biodegradability when compared to known thermoplastics. The composite comprises minimally a thermoplastic polymer, at least one phenolic compound, and, optionally, a filler.

Abstract: A molding material is a molding material including linear alkyl-based polyester, highly polar polyester, and cellulose fibers, in which a content of the linear alkyl-based polyester is greater than a content of the highly polar polyester, and a total content of the linear alkyl-based polyester and the highly polar polyester is less than or equal to a content of the cellulose fibers.

Abstract: A molding material includes a resin and cellulose fibers, in which the content of the cellulose fibers is 50% by mass or more based on the total mass of the molding material, the resin has a Hansen solubility parameter HSP of 20.0 or more and 32.0 or less in total, a hydrogen bonding term ?H of 4.0 or more and 15.0 or less in total, and a polarity term ?P of 8.5 or more and 17.0 or less in total, and when a molded body obtained by using the molding material is fractured, the resin present on the cellulose fibers accounts for 30% or more of an area of 1 mm square of the fracture surface of the molded body.

Abstract: The bioplastic composition comprises: at least one seaweed extract in a concentration by weight comprised between 30% and 80% with respect to the weight of the bioplastic composition; water in a concentration by weight comprised between 1% and 30% with respect to the weight of the bioplastic composition; at least four additives present in a total concentration by weight comprised between 20% and 70% with respect to the weight of the bioplastic composition; wherein the additives comprise at least one plasticizer, at least one antimicrobial agent, at least one gelling agent and at least one adjuvant.

Abstract: In various aspects, the invention provides compositions of variable-length hydrophobically-modified polymers. These variable-length hydrophobes decorated along the hydrophilic polymer backbone provide advanced properties and allow for precise control over the behavior of the resulting amphiphilic polymer, including in aqueous solution. Such control allows for enhanced functionality of the amphiphilic polymer relative to standard single-length hydrophobe grafting designs, including for hemostasis.

Abstract: The present invention relates to elastomeric compositions and compounds for tyres, in particular for tyre treads, comprising elastomeric polymers in specific ratios and having particular Tg values, tyre components and tyres for vehicle wheels which comprise them. These compounds find particular application in all-season tyres as they give them good manoeuvrability on snow, grip in the wet and advantageously limited wear of the tread.

Abstract: A rubber composition contains: an elastomer matrix comprising at least one diene elastomer comprising epoxide functions, at least one reinforcing filler, and a system for crosslinking said polymer, comprising at least one organopolyphosphorus compound of general formula (I) in which A represents a covalent bond or a hydrocarbon group comprising at least 1 carbon atom, which is optionally substituted and which optionally comprises one or more heteroatoms, and the Rs represent, independently of one another, a hydrocarbon group comprising at least 1 carbon atom or a hydrogen atom.

Abstract: Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

Abstract: [Problem] To provide a laminate having a polar resin layer, which is excellent in transparency and mechanical strength (in particular impact resistance), and a polar resin composition for forming the polar resin layer of the laminate having such properties. [Solution] A polar resin composition including 5 to 30% by mass of an ethylenic polymer (A), 40 to 85% by mass of a polar resin component (B), and 10 to 40% by mass of a modified ethylene/?-olefin copolymer (C) obtained by modifying an ethylene/?-olefin copolymer (CO) with an unsaturated carboxylic acid or a derivative thereof and having a melt flow rate (190° C., 2.16 kg load) of 0.1 to 50 g/10 minutes, provided that the sum of proportions of the (A), (B), and (C) is 100% by mass.

Abstract: A composition comprising the following components: a) a first ethylene/alpha-olefin interpolymer that comprises the following properties: i) a melt viscosity (177° C.) from 2,000 to 50,000 mPa·s, ii) a density from 0.855 to 0.885 g/cc; b) a second ethylene/alpha-olefin interpolymer that comprises the following properties: i) a melt viscosity (177° C.) from 2,000 to 50,000 mPa·s, ii) a density from 0.900 to 0.960 g/cc; and wherein the weight ratio of component a to component b is from 1.0 to 100.

Abstract: A fiber composite material is provided. The fiber composite material includes 40 phr to 65 phr of a polypropylene resin, 30 phr to 60 phr of a long glass fiber, 0.5 phr to 5 phr of a black masterbatch, and 0.5 phr to 10 phr of a compatibilizer. The black masterbatch contains carbon black having a basic active group on a surface of the carbon black. The compatibilizer is grafted with maleic anhydride.

Abstract: Polyolefin (PO) compositions derived from post-consumer recyclate (PCR) PO based materials having well balanced properties with regards to electric conductivity, impact performance, stiffness, and workability.

Abstract: Disclosed are a thermoplastic elastomeric composition for vehicle mounts which has improved surface energy and compression set while solving reduction in wear strength, by blending EPDM rubber, polypropylene, silicon, and poly(styrene-ethylene-butadiene-styrene) (SEBS) in appropriate amounts, and a molded article including the same.

Abstract: This bolus, which is for radiation therapy, can be deformed to match the shape of a human body surface, and has little deformation during therapy. The bolus forming material is a rubber composition containing ethylene-propylene rubber and a temperature-sensitive material. The bolus forming material has a JIS type A hardness of 20 or higher at 30° C., and thus is not susceptible to deformation. The bolus forming material has a JIS type E hardness of 10 to 60 at 70° C., and thus easily deforms. The bolus forming material shifts the peak of the percentage depth dose for electron beams and X-rays in the beam source direction at 0.8 to 1.2 times the thickness thereof. Therefore, the bolus forming material has dose characteristics in the depth direction that are substantially the same as a human body. After a sheet of the bolus forming material is heated to around 70° C., the sheet deforms.

Abstract: Disclosed is a polymeric composition containing at least 98 wt. % of a random ethylene polypropylene copolymer and 0.01 wt. % to 1.0 wt. % of an acid neutralizer. The random ethylene polypropylene copolymer includes 4 wt. % to 12 wt. % of ethylene units and 88 wt. % to 96 wt. % of propylene units based on the total weight of the copolymer. The polymeric composition has a haze value of less than 40% as measured in accordance with ASTM D-1003 and a notched Izod impact strength of greater than 3 ft-lb/in as measured in accordance with ASTM D-256. The polymeric composition can further comprise a clarifier. Methods of making the polymeric composition and articles containing the polymeric composition are also disclosed.

Abstract: A styrene-based resin composition containing a styrene-based resin (A) having a syndiotactic structure, a styrene-based elastomer (B), a compatibilizer (C), an inorganic filler (D), and a colorant (E), having a content of the styrene-based elastomer (B) of 2.0 to 30.0% by mass based on the total amount of the styrene-based resin (A) having a syndiotactic structure, the styrene-based elastomer (B) and the compatibilizer (C) as 100% by mass, and a content of the colorant (E) of 0.0001 to 6.5% by mass based on the entire amount of the styrene-based resin composition as 100% by mass.

Abstract: Provided are a flame retardant composition for expandable styrene resin that can be used to produce a foamed molded article having excellent flame retardancy and excellent heat resistance, a flame-retardant expandable styrene-based resin composition, and an extrusion-foamed molded article of the styrene-based resin compostion. The flame retardant composition for expandable styrene resin of the present invention comprises at least tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) as a component (B1), fatty acid zinc as a component (C), and a fatty acid metal salt, excluding the component (C), as a component (D), the component (C) being contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the component (B1), and the component (D) being contained in an amount of 1 to 35 parts by mass based on 100 parts by mass of the component (B1).

Abstract: Methods of making anti-sticking perfluorinated articles are described. The methods include molding curing, and heat-treating a composition prepared from a coagulated and dried blend of latex dispersions of a perfluoro-elastomeric gum and a perfluoroplastic. The curing steps are performed at temperatures below the melting point of the perfluoroplastic, while the heat-treatment step occurs at a temperature above this melting point. The resulting articles are also described.

Abstract: A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate copolymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or increased molecular weights. The crosslinked compositions can function as adhesive compositions that are particularly well suited for use in electronic devices.

Abstract: The present invention relates to a composition for forming a composite polymer film, a method for preparing the composition for forming a composite polymer film, a composite polymer film and a method for preparing the composite polymer film. The composition for forming a composite polymer film comprises: a fluorine-based polymer solution comprising a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the fluorine-based polymer solution. The method for preparing the composition for forming a composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; and dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution. The composite polymer film comprises: a polymer matrix formed from a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the polymer matrix.

Abstract: The invention relates to a composition comprising A) a first polyester, B) a first polyolefin, C) a compatibilizer and D) a lubricant, wherein D) comprises a siloxane polymer having a viscosity of at least 10000 cSt and an optional second polyester and/or an optional second polyolefin, the total amount of A) and B) with respect to the total composition is at least 80 wt %, the amount of C) with respect to the total composition is 0.1 to 15 wt % and the amount of D) with respect to the total composition is 0.1 to 5.0 wt %.

Abstract: Polyester polymer compositions are described containing a blend of different polyester polymers. The different polyester polymers are combined with one or more laser additives for producing polymer articles that have excellent laser weldable characteristics. The polymer composition can also contain reinforcing fibers and a lubricant. In one aspect, the laser additive is a carbonaceous material alone or in combination with a quinoline.

Abstract: A molding material is a molding material including linear alkyl-based polyester, highly polar polyester, cellulose fibers, and a flame retardant, in which a total content of the linear alkyl-based polyester and the highly polar polyester is less than or equal to a content of the cellulose fibers, the flame retardant has a phosphazene skeleton or a phosphoric acid ester skeleton in a molecular structure, and a content of the flame retardant is 1% by mass or greater and 10% by mass or less with respect to the total content of the linear alkyl-based polyester, the highly polar polyester, and the cellulose fibers.

Abstract: The present invention aims to provide a thermoplastic polyester elastomer resin composition capable of providing a molded product having good appearance and really excellent abrasion resistance.

Abstract: A thermosetting composition comprising a crosslinkable component such as a vinyl ester and/or an unsaturated polyester, and an initiator component, such as cumene hydroperoxide or BPO or blends of cumene hydroperoxide and methyl ethyl ketone peroxide. The composition is suitable to be used in additive manufacturing to form objects such as molds or prototypes.

Abstract: An aqueous biopolymer dispersion composition comprises: a blend of two or more biopolymers, consisting of polycaprolactone (PLC) and one or more selected from the group consisting of: polybutylene adipate terephthalate (PBAT), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polylactic acid (PLA), poly(3-hydroxybutyrate) (PHB) and mixtures thereof, a stabilising agent selected from the group consisting of: polyvinyl alcohol, fatty alcohol ethoxylates, ethylene oxide/propylene oxide (EO/PO) block copolymers, salts of fatty acids and mixtures thereof, a cross linking agent; an optional rheology modifier; optional further ingredients; and water.

Abstract: The present invention relates to a use of a stabilizer selected from compound (1) to (23) or micronized metal oxide salts for stabilizing a shaped polymer article against degradation induced by artificial UV-C light; and to a method for stabilizing a shaped polymer article against degradation induced by artificial UV-C light, which comprises incorporating into the shaped polymer articles a stabilizer selected from the stabilizers.

Abstract: There is provided an aqueous heat-sealable resin composition which enables a laminate to have excellent heat sealing strength and blocking resistance. The disclosure relates to an aqueous heat-sealable resin composition which contains a urethane resin (A) which is a product of reaction components including a polyether polyol (a1), a polyisocyanate (a2) and a chain extender (a3) or the urethane resin (A) and a wax (B), and a laminate having a coating of the composition on at least one surface of a substrate.

Abstract: The present invention relates to a curable composition containing (A) a cyclic molecule that contains three or more side chains each having at a terminal thereof an active hydrogen-containing group, (B) a urethane prepolymer having an iso(thio)cyanate group on each of both terminals of a molecule, (C) a diol, and (D) an amino group-containing monomer. According to the present invention, it is possible to provide a curable composition that gives a cured product having a high abrasion resistance and capable of exhibiting superior mechanical properties, in particular, a curable composition that can give a cured product capable of being suitably used in a polishing pad.

Abstract: The present invention relates to a molding composition, comprising by weight: (A) 38 to 87% of at least one semi-crystalline aliphatic polyamide, (B) 3 to 25% of a hollow glass reinforcement, (C) 5% to 30% glass fibers, (D) 5 to 15% of at least one impact modifier chosen from a polyolefin, a polyether block amide (PEBA-1) and a mixture thereof, the polyolefin and the PEBA-1 having a flexural modulus less than 200 MPa, in particular less than 100 MPa, as measured according to standard ISO 178:2010, at 23° C., (E) 0 to 2% by weight of at least one additive, the sum of the proportions of each constituent of said composition being equal to 100%, the density of the composition being less than 1.12 g/cm3.