Multilayer polyethylene (PE) geomembrane liners for unconventional thermal conditions and methods of making them are disclosed. The liners have N co-extruded stacked layers, each layer being made from a PE masterbatch composition comprising a given amount of PE resin and additives, and of a PE metallocene based resin free of acid neutralizer compounds. Also disclosed are customized multilayer PE geomembrane liners of N co-extruded stacked layers, each layer being made from a PE masterbatch comprising a specific additive providing specific behaviour property to the layer; wherein at least two of the N layers comprise a different specific additive in order to provide a geomembrane liner having at least two layers with different behaviour property. The liners have a water-bath aging performance for about 6 months immersion at about 80° C. per ASTM D5322—modified for water, such that about 80% of high pressure OIT value retained per ASTM D5885.

The technology disclosed herein concerns a family of alkoxybenzophenones for use as photoinitiators for crosslinking polyolefins.

A cross-linkable nitrile rubber composition including a highly saturated nitrile rubber (A) containing α,β-thylenically unsaturated nitrile monomer units in a ratio of 5 to 50 wt % and having an iodine value of 120 or less, a polysaccharide polymer staple fiber (B) having an average fiber diameter of 1 μm or less, and a cross-linking agent (C), wherein a ratio of content of the polysaccharide polymer staple fiber (B) is 0.5 to 30 parts by weight with respect to 100 parts by weight of the highly saturated nitrile rubber (A).

A bio-assimilation master batch including a carrier resin, one or more transition metals, and one or more primary antioxidants is provided. The master batch may include one or more secondary antioxidants and one or more bioassimilation promoting additives. A process for producing polymeric bio-assimilating material including creating a master batch, mixing the master batch with a host polymer to form an end-use polymer mixture, and introducing the end-use polymer mixture to a polymer processing device to manufacture a polymer-based article. Products produced from a process for producing polymeric bio-assimilating material including creating a master batch, mixing the master batch with a host polymer to form an end-use polymer mixture, and introducing the end-use polymer mixture to a polymer processing device to manufacture a polymer-based article.

Stabilizer compositions having a stabilizing amount of at least one co-active agent; an ultraviolet light absorber chosen from orthohydroxyphenyl triazine compounds and/or benzoxazinone compounds; and a hindered amine light stabilizer, are provided herein, along with masterbatch concentrates containing same, and processes for using same for stabilizing polymeric organic materials to protect against light and thermal degradation due to exposure to UV irradiation.

The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 μm or less.

A resin composition for a sealant has excellent heat-sealing strength with respect to a substrate, and a reduced elution amount thereof into normal heptane.

A resin composition for a sealant includes: a resin (A) which is an ethylene-(meth)acrylic acid ester copolymer in which a content of a (meth)acrylic acid ester unit is from 10% by mass to 25% by mass; and a tackifying resin (B), in which a content of the resin (A) is more than 45% by mass with respect to a total amount of resin components in the resin composition for a sealant, and a content of the tackifying resin (B) is from 0.1% by mass to 10% by mass with respect to the total amount of the resin components in the resin composition for a sealant.

Provided are: a nucleating agent for a polyolefin resin having an excellent β crystal-forming effect; a nucleating agent composition for a polyolefin resin containing the nucleating agent; a polyolefin resin masterbatch; a polyolefin resin composition; a molded article of the composition; a film of the composition; a method of producing a porous film; and a package. The nucleating agent contains a compound represented by Formula (1) below wherein M represents a monovalent to trivalent metal atom having a specific gravity of 4.0 or less, or the like; a represents 1 or 2; b represents 1 or 3; x represents an integer of 1 to 3; ax=2b is satisfied; and Z represents a group represented by Formula (2) or (3) below wherein * represents a position at which each group is linked with Z of Formula (1); Y represents a direct bond or an alkylene group having 1 to 4 carbon atoms; and R.sub.1 to R.sub.10 each independently represent a hydrogen atom, a hydroxy group, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or the like.

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A method for producing a first kneading step in which cellulose fibers having a weighted-average fiber length of 0.20 mm to 1.50 mm, a compatibilizing resin, and urea are introduced into a kneader and kneaded.

A polymer composition comprising: (a) from 50% by volume to 99% by volume, preferably from 70% by volume to 95% by volume, of at least one homopolymer or copolymer of ethylene; (b) from 1% by volume to 50% by volume, preferably from 5% by volume to 30% by volume, of at least two fillers having different thermal conductivity; (c) from 100 ppm to 4000 ppm, preferably from 200 ppm to 3500 ppm of at least one fluoropolymer; the sum of (a)+(b) being 100. Said polymer composition can be used as a phase change material (PCM), in particular for thermal energy storage (TES), more in particular for the storage of solar energy.