A heat energy storage system may have a shape-stabilized composite prepared using an easy impregnation method involving a porous Ca.sup.2+-doped MgCO.sub.3 matrix and PEG as the functional phase. The heat storage capability, microstructures, and interactions with the PEG/CaMgCO.sub.3 composite can be characterized by DSC, SEM imaging, FT-IR spectroscopy, and TGA. Likely because of the synergistic phase change effect of CaMgCO.sub.3 and PEG, the PEG/CaMgCO.sub.3 composites can have high thermal enthalpies, and their enthalpy efficiencies are substantially higher than those of traditional shape stabilized PCMs. The functional material PEG can permeate porous CaMgCO.sub.3 matrices under capillary action. Liquid PEG can be stabilized within the porous matrix, and/or the CaMgCO.sub.3 matrix can improve the thermal stability of the PEG. The high heat energy storage properties and good thermal stability of such organic-inorganic composites offers utility in a range of applications, including thermal energy storage.

A heat energy storage system may have a shape-stabilized composite prepared using an easy impregnation method involving a porous Ca.sup.2+-doped MgCO.sub.3 matrix and PEG as the functional phase. The heat storage capability, microstructures, and interactions with the PEG/CaMgCO.sub.3 composite can be characterized by DSC, SEM imaging, FT-IR spectroscopy, and TGA. Likely because of the synergistic phase change effect of CaMgCO.sub.3 and PEG, the PEG/CaMgCO.sub.3 composites can have high thermal enthalpies, and their enthalpy efficiencies are substantially higher than those of traditional shape stabilized PCMs. The functional material PEG can permeate porous CaMgCO.sub.3 matrices under capillary action. Liquid PEG can be stabilized within the porous matrix, and/or the CaMgCO.sub.3 matrix can improve the thermal stability of the PEG. The high heat energy storage properties and good thermal stability of such organic-inorganic composites offers utility in a range of applications, including thermal energy storage.

The present invention provides an adhesive film hardly suffering from fisheyes and deposition of dirt and dusts thereonto and having excellent mechanical strength and heat resistance as well as good adhesion properties, which can be suitably used as various surface protective films, etc. The present invention relates to an adhesive film comprising a polyester film and an adhesive layer formed on at least one surface of the polyester film, in which the adhesive layer comprises a resin having a glass transition point of not higher than 0 C., and an antistatic agent, and a thickness of the adhesive layer is not more than 10 m.

A composite material joined with a curable phenolic resin adhesive, with the phenolic resin adhesive comprising a stiffening agent precursor, and with the stiffening agent precursor selected to react with reaction by-products of the phenolic resin adhesive during curing to produce a reaction product stiffening agent in a cured bonding layer that is detectable by ultrasound, resins comprising the stiffening agent precursor, bonding layers comprising the reaction product stiffening agent, and methods for making the composite material joints and inspecting the composite material joints are disclosed.

Provided is a resin film for an electronic device including: a resin containing a polymer; hygroscopic particles dispersed in the resin and having a primary particle diameter of 200 nm or less; and a dispersant, wherein an absolute value of a difference in refractive index between the resin and the particles is 0.05 or less. The resin is preferably a thermoplastic resin, and more preferably a thermoplastic elastomer. The polymer is preferably one or more types selected from an aromatic vinyl compound-conjugated diene copolymer and a hydrogenated aromatic vinyl compound-conjugated diene copolymer. An electronic device including the resin film for an electronic device is also provided.

An aqueous copolymer dispersion is formed by emulsion polymerization of a monomer mixture comprising (a) 20 to 80 wt. % of one or more (meth)acrylic acid esters A, whose homopolymer(s) have a T.sub.g>25 C. and at least one has a biorenewable carbon content of at least 50 wt. % of the total carbon content of the ester; (b) 19 to 79 wt. % of one or more (meth)acrylic acid esters B whose homopolymer(s) have a T.sub.g<25 C.; (c) 0.5 to 10 wt. % of at least one monomer selected from unsaturated sulfonic, phosphoric and phosphonic acids, and unsaturated carboxylic acids, anhydrides and amides thereof; (d) up to 10% by weight of one or more functional monomers selected from hydrolysable silane compounds, epoxy-containing compounds, ureido-containing compounds and carbonyl-containing compounds, and (e) less than 5 wt. % of one or more further monomers, wherein the total percentages of comonomers (a) to (e) equals 100%.

A polyethylene pipe comprising components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is a natural or synthetic hydrotalcite and the weight ratio of component A) to component B) is 1:10 to 10:1.

Disclosed herein are a lithium ion battery fire suppressant capable of effectively suppressing a fire of a lithium ion battery and a lithium ion battery fire suppression sheet including the same. The lithium ion battery fire suppressant includes an extinguishing powder and an organic binder mixed with the extinguishing powder.

Disclosed embodiments include hollow composite utility pole, cross arm, and brace structures and methods of manufacture of the same using fire retardant materials. Poles, cross arm, and brace structures may be manufactured using a fire resistant resin impregnated, or resin wetted, filament roving that is wound onto a mandrel, pultruded or otherwise formed into a structural part. Various pole structures and manufacturing methods are described, including chemically bonded sleeve joint structures for poles of varying size.

A resin composition and an application thereof are provided, wherein the resin composition includes a thermoplastic elastomer, a styrene-based resin, a processing oil, and a filler. Based on 100 wt % of the resin composition, the content of the thermoplastic elastomer is 20 wt % to 55 wt %, the content of the styrene-based resin is 25 wt % to 55 wt %, the content of the processing oil is 6 wt % to 18 wt %, and the content of the filler is 5 wt % to 20 wt %. A printing material made by the resin composition has good adhesion with a substrate.