Abstract:
Polymeric composites and methods of manufacturing polymeric composites are described. In one embodiment, a set of microcapsules containing a phase change material are mixed with a dispersing polymeric material to form a first blend. The dispersing polymeric material has a latent heat of at least 40 J/g and a transition temperature in the range of 0°C to 50°C. The first blend is processed to form a polymeric composite. The polymeric composite can be formed in a variety of shapes, such as pellets, fibers, flakes, sheets, films, rods, and so forth. The polymeric composite can be used as is or incorporated in various articles where a thermal regulating property is desired.
Abstract:
The present invention is directed to an oxygen scavenger composition comprising a mixture of (i) a polyester polymer composed of polymer segments containing cycloalkenyl group or functionality; and (ii) an ester type polymer selected from (a)a polyester having a high content of alkylene groups; (b) a polylactone; and (c) a polyvinylacetate having at least about 50 weight percent vinyl acetate mer units therein. The present polymer composition has been found to act as an oxygen scavenger agent under both ambient and refrigerated conditions, to be compatible with conventional film forming packaging materials, to provide compositions exhibiting low tack, and to be capable of being readily processed using conventional film forming equipment.
Abstract:
The present invention relates to coating compositions containing a polymeric or copolymeric levelling agent, which has been prepared by nitroxyl - mediated polymerisation. Further aspects are a process for the preparation of smooth surface coatings and the use of said polymer or copolymer as levelling agent in coating compositions. Yet another aspect are specific ethylenically unsaturated monomer compositions from which copolymers can be obtained by atom transfer radical polymerisation or nitroxyl mediated polymerisation, which copolymers are useful as levelling agents in coating compositions. Still another aspect is the use of poly-tert.-butyl acrylate or poly-tert.butylmethacrylate as a levelling agent in powder coating compositions.
Abstract:
A resin composition which comprises a polylactic acid resin and compounded therewith a polyacetal resin. In the composition, the polylactic acid resin has been compatibilized with the polyacetal resin. This resin composition is excellent in moldability, processability, mechanical properties, heat resistance, transparency, etc. and is hence utilizable as a molded article, film, and fiber.
Abstract:
A thermoplastic resin composition prepared by blending (a) 0.1-99 wt.% of a fluoropolymer containing a hydroxyl or epoxy group at least at one terminal of the main and side chains thereof and having a number-average molecular weight of 2,000 to 1,000,000 and (b) 1-99.9 wt.% of a heat-resistant thermoplastic resin having a crystal melting point or a glass transition point of 150 DEG C or above. This composition is one comprising various heat-resistant thermoplastic resins and a functional fluoropolymer that is well compatible with the resin and is capable of forming a homogeneous dispersion.
Abstract:
PROBLEM TO BE SOLVED: To provide a polymer having a sufficient molecular weight for satisfactory film strength, and a monomer combination suitable for obtaining a property inherent in wax. SOLUTION: The polymer comprises a copolymer of at least two monomers selected from the group consisting of (A) an acrylic acid ester/methacrylic acid ester, (B) an ethylenic unsaturated acid, for example, an acrylic acid, a methacrylic acid, and an itaconic acid, (C) a styrene or a styrene derivative, (D) a bifunctional or trifunctional ethylenic unsaturated compound, for example, divinylbenzen, glycol diacrylate, and TMP triacrylate; (E) a vinyl ether and (F) a polymeric wax ((F) is required to be contained in the copolymer in an amount of at least 1 wt.%). COPYRIGHT: (C)2007,JPO&INPIT