C08J2453/00

Non-humidified proton-conductive membrane, method for producing the same, and fuel cell

A non-humidified proton-conductive membrane according to the present invention includes a polymer and a proton-conductive substance. The polymer includes a glassy or crystalline first site having a glass-transition temperature or melting temperature higher than the service temperature of the proton-conductive membrane and a second site capable of forming a noncovalent bond. The proton-conductive substance includes a proton-releasing/binding site capable of noncovalently binding to the second site of the polymer and a proton coordination site capable of coordinating to protons, the proton-releasing/binding site and the proton coordination site being included in different molecules that interact with each other or being included in the same molecule. A proton-conductive mixed phase that includes the second site to which the proton-releasing/binding site of the proton-conductive substance is bound and the proton-conductive substance is lower than the service temperature of the proton-conductive membrane. The amount of the proton-releasing/binding site is excessively large compared with the amount of the second site of the polymer.

BIAXIALLY ORIENTED POROUS FILM HAVING A PARTICLES-CONTAINING POROUS LAYER AND AN INORGANIC COATING
20200238672 · 2020-07-30 ·

The invention relates to a biaxially oriented, single- or multi-layer porous film, containing a -nucleating agent and comprising at least one porous layer, which contains at least one propylene polymer and particles, said particles having a melting point of more than 200 C. On the outer surface of the porous layer, said porous film has a coating of inorganic, preferably ceramic particles.

IMPROVED ADHESION OF POLYOLEFINS TO POLYESTERS
20200239672 · 2020-07-30 ·

The use of a block copolymer of the following structure. Wherein R and R.sup.1 may be the same or different and each independently represents an alkyl or aryl group, X may be hydrogen or C.sub.1 to C.sub.20 alkyl group which may be branched or linear and wherein the aromatic ring substituent joined to polymer B is positioned meta or para to the aromatic ring substituent joined to polymer A and, wherein polymer A is a polymer (or copolymer) of ethylene and polymer B is a polymer of monomers selected from vinyl acetate, C.sub.1-C.sub.9 acrylate esters, acrylic acid and mixtures thereof as an additive in polyethylene or polyethylene terephthalate to improve the adhesion between co-extruded layers of the polyethylene and the polyethylene terephthalate and laminated films derived from such use.

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SURFACE MODIFYING COMPOSITION, MODIFIED PRODUCT, AND METHOD OF PRODUCING MODIFIED PRODUCT

A surface modifying composition for modifying a surface of a formed product made of high-density polyethylene or ultra-high molecular weight polyethylene, the composition comprising: a copolymer having a unit of a first monomer having an aliphatic group having 10 or more carbon atoms and a unit of a second monomer having any of an amino group, an epoxy group, and an ether group, and a solvent having a boiling point of 100 C. or more and being at least one selected from the group consisting of a halogen-based solvent, an alkane solvent, a cycloalkane solvent, a dicycloalkane solvent, an aromatic solvent, and a nitro-based solvent.

POLYOLEFIN RESIN FOAM AND PRODUCTION METHOD THEREOF AND ADHESIVE TAPE

One object of the present invention is to provide a polyolefin resin foam sheet suitable as a sealing substrate having both flexibility and heat resistance despite its thinness, and an adhesive tape in which the polyolefin resin foam sheet is used. In order to achieve this, the polyolefin resin foam includes a thermoplastic elastomer, wherein the endothermic peaks measured by a differential scanning calorimeter (DSC) occur in the range of at least 110 C. or more and 143 C. or less and at 153 C. or more, and the thermoplastic elastomer resin is contained at a ratio of 30% by mass or more and 60% by mass or less in 100% by mass of the polyolefin resin.

Method for producing polyethylene-based resin extruded foam sheet, polyethylene-based resin extruded foam sheet, and plate interleaf sheet using the same for glass sheets
10717840 · 2020-07-21 · ·

Provided is a method for producing a polyethylene-based resin extruded foam sheet by extruding and foaming a foamable molten resin composition formed by kneading a mixture containing a low-density polyethylene, a physical blowing agent, and an antistatic agent, wherein the foam sheet has a thickness in a range of from 0.05 to 0.5 mm, and the antistatic agent is a polymeric antistatic agent having a melting point whose different from the melting point of the low-density polyethylene is in a range of from 10 to +10 C., and having a melt flow rate of 10 g/10 min or more. This method enables a novel polyethylene-based resin extruded foam sheet to be obtained that is of high quality such that formation of a small hole or a through-hole has been reduced or eliminated, and has both excellent strength and a shock-absorbing property despite a very small thickness even in medium- or long-term continuous production, and besides, exhibits a sufficient antistatic property, thus suitable as a glass plate interleaf sheet.

Polyolefin resin, preparation method therefor, and vehicle rear bumper beam using same

Disclosed is a polyolefin resin, a method for preparing the same, and a vehicle rear bumper beam using the same. The polyolefin resin is characterized by being composed of a thermoplastic resin composite including a polymer base including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant; and a fiber reinforcing material that is impregnated into the polymer base and has a length of 5 to 20 mm, wherein 10 to 50 wt % of the fiber reinforcing material is included with respect to the polyolefin resin. The method is characterized in that a thermoplastic resin composite is formed by impregnating a molten mixture including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant with a fiber reinforcing material having a length of 5 to 20 mm.

Process for Producing Foam Beads Using a Modified Ethylene-Based Polymer
20200199320 · 2020-06-25 ·

The present disclosure provides a process. The process includes (i) forming a composition containing a peroxide-modified ethylene-based polymer selected from the group consisting of a peroxide-modified ethylene/a-olefin multi-block copolymer, a peroxide-modified low density polyethylene, and combinations thereof; (ii) contacting the composition with a blowing agent to form a foam composition; and (iii) forming foam beads comprising the foam composition. The present disclosure also provides a foam bead produced by said process.

COMPOSITIONS AND METHODS OF MAKING THERMOSET FOAMS FOR SHOE SOLES

A footwear article is provided. The footwear article includes a shoe sole. The shoe sole includes a crosslinked foam polyolefin elastomer having a density less than 0.88 g/cm.sup.3, the crosslinked foam polyolefin elastomer including: a silane-grafted polyolefin elastomer, a silane-grafted olefin block copolymer, a polyolefin elastomer (POE), an olefin block copolymer (OBC), or a combination thereof; an ethylene vinyl acetate (EVA) copolymer; a crosslinker; a condensation catalyst; and a foaming agent. The shoe sole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50 C.).

HIGH ENERGY RETURN FOAM COMPOSITIONS HAVING IMPROVED ABRASION RESISTANCE AND USES THEREOF
20200170334 · 2020-06-04 ·

Components for articles of footwear and athletic equipment are provided including a high energy return foam having improved abrasion resistance. A variety of foams and foam components and compositions for forming the foams are provided. In some aspects, the foams and components including the foams can have exceptionally high energy return while also having improved durability and softness and an improved abrasion resistance. In particular, midsoles including the foams are provided for use in an article of footwear. Methods of making the compositions and foams are provided, as well as methods of making an article of footwear including one of the foam components. In some aspects, the foams and foam components can be made by injection molding or injection molding followed by compression molding.