Polymer compositions are disclosed that can be used to produce different types of molded articles, such as extruded piping structures. The polymer composition contains an oxidative stabilizing package. The oxidative stabilizing package contains at least one antioxidant, a nucleating agent, and an acid scavenger. The nucleating agent is a phosphate ester or a dicarboxylate metal salt. The stabilizing package of the present disclosure dramatically improves oxidation induction time.

A rubber composition, by which a vulcanizate having excellent vulcanization speed, abrasion resistance and low temperature rise can be obtained, is provided. A rubber composition including 100 parts by mass of a chloroprene-based rubber, 20 to 80 parts by mass of silica, 1 part by mass or more and less than 20 parts by mass of a hydrate, and 0.3 to 1.4 parts by mass of an organic peroxide, wherein the rubber composition includes 0.5 to 15 parts by mass of a silane coupling agent having a double bond in a structure of the silane coupling agent with respect to 100 parts by mass of the silica.

A polymer composition may include a high-density polyethylene (HDPE), in which at least a portion of ethylene from the HDPE is obtained from a renewable source of carbon. The polymer composition may include a primary antioxidant that is an isocyanurate, a secondary antioxidant that comprises a diphosphite, and a neutralizer is a layered double hydroxide. A bicomponent fiber may include the polymer composition. An article may be prepared from the polymer composition or the bicomponent fiber. A product may be prepared from the polymer composition or the bicomponent fiber.

The invention relates to a composition Z comprising a component A, component B and/or C, and component D, wherein the component A is a thermoplastic material selected from the group consisting of polyolefins, polyolefin copolymers and polystyrenes; the component B is an organic additive selected from the group consisting of glycerol, a polyglycerol, a glycerol ester, a polyglycerol ester and a combination thereof; the component C is an organic additive selected from the group consisting of sorbitol, a sorbitol ester, sorbitan, a sorbitan ester, and a combination thereof; the component D is an inorganic additive selected from the group of layered double hydroxides.

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 artificial marble composition and an artificial marble using the same, the composition including (A) 100 parts by weight of an acrylic resin syrup, (B) 150 parts by weight to 250 parts by weight of an aluminum-based inorganic filler, (C) 8 parts by weight to 100 parts by weight of a phosphorus-based flame retardant, and (D) 35 parts by weight to 100 parts by weight of a magnesium-based flame retardant.

A fluororesin sheet of the present invention is a sheet mainly including a fluororesin, having a blackness of 30 or less as expressed in terms of L* value in an L*a*b* color system, and having a surface resistivity of 1×10.sup.10 Ω/sq or more. The fluororesin sheet of the present invention may be a sheet mainly including a fluororesin and including a composite oxide black filler. An adhesive tape of the present invention includes a substrate sheet and an adhesive layer provided on one of surfaces of the substrate sheet, and the substrate sheet is one of the above fluororesin sheets. The fluororesin sheet and the adhesive tape of the present invention unprecedentedly have a high degree of freedom in application development.

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and an acid scavenger. In accordance with the present disclosure, the acid scavenger is an inorganic compound that is insoluble in the plasticizer and/or any extractions solvents used during the process. In one embodiment, the acid scavenger is a magnesium aluminum hydroxide carbonate.

A glass ceramic item, intended in particular for use with at least one light source and/or at least one heating element, includes at least one substrate, such as a plate, made of glass ceramic, and having at least one light region. The substrate is coated with respect to the region with a paint consisting of at least one silicone resin and pigment(s). The content of the pigment(s) are greater than or equal to 1% and less than 10% by weight of the paint. A method for producing such an item is also included.

The present invention relates to a PVC resin composition for preparing foamed polymer products, to a foamed polymer product prepared from the composition, to a method for preparing a foamed polymer product, to an article comprising the foamed polymer product as well as to the use of a surface-reacted calcium carbonate, hydromagnesite and mixtures thereof for reducing the density of the obtained foamed PVC product.