The present invention relates to thermoplastic polyurethanes obtainable or obtained by reacting at least a polyisocyanate composition comprising at least one polyisocyanate, at least one chain extender, and at least one polyol composition, wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms, preferably butane-1,4-diol. The present invention also relates to a preparation process for such thermoplastic polyurethanes and also to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for the production of extrusion products, films and shaped bodies or for the production of polymer compositions.

A method for producing highly spherical polymer particles comprising a polyamide having an optical absorber in a backbone of the polyamide (IBOA-polyamide) may comprise: mixing a mixture comprising the IBOA-polyamide, a carrier fluid that is immiscible with the IBOA-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the IBOA-polyamide and at a shear rate sufficiently high to disperse the IBOA-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the IBOA-polyamide to form particles comprising the IBOA-polyamide and the emulsion stabilizer, when present, associated with an outer surface of the particles.

The disclosure relates to a method for producing an extruded sheet, which includes: a) providing calcium carbonate (CaCO.sub.3) powder; b) providing polyvinyl chloride (PVC) powder; c) providing additives as stabilisers, e) heating the mixture until the PVC softens to form a kneadable mass and the CaCO.sub.3 at least partially bonds to the PVC; f) cooling the mass; g) conveying the mass to an extruder; h) melting and extruding the mass by means of an extruder and moulding into a sheet by means of a slotted nozzle; i) pressing the still-warm sheet to a desired final thickness by means of at least two calendar rolls; and j) at least one layer of a pigmented lacquer is applied to the upper side; and k) an additional lacquer is applied to the pigmented lacquer to increase the scratch resistance.

A PVC rigid substrate, a preparation method therefor and a PVC rigid composite plate, wherein the PVC rigid substrate comprises the following raw materials in parts by weight: 40-50 parts of PVC, 75-150 parts of calcium carbonate, 0.6-1.0 parts of balance lubricant, 3.0-5.0 parts of stabilizer and 10-20 parts of CPVC. The PVC substrate has a high hardness, a very small heating size change rate which can be less than or equal to 0.05%. The impact resistance and toughness of a product may be greatly improved to facilitate the treatments that follow. Second, the PVC rigid composite plate has a high mechanical strength and a long service life; at the same time, the PVC rigid substrate can be prepared by using an extrusion method, which is very simple and easy to implement.

A panel for a vehicle is described. The panel includes a substrate and a hardcoat layer on a surface of the substrate configured as a vehicle front-facing surface. The panel includes a first portion having a visible light transmission equal to or greater than 40% measured in accordance with ASTM D1003-00. The substrate includes a polymer composition comprising polycarbonate. A melt volume rate of the polycarbonate is equal to or less than 15 cm3/10 min, measured at 300 C. with a 1.2 kg load in accordance with ISO1133.

A thermoplastic polyester resin composition is obtained by blending, per 100 parts by weight of (A) a thermoplastic polyester resin, 0.1 to 5 parts by weight of (B) a novolac type epoxy resin having a specific structure, and 0.05 to 10 parts by weight of (C) an epoxy compound having two epoxy functional groups per molecule. Thus, a molded article that exhibits superior melt stability with respect to a wide range of processing temperatures, has excellent mechanical properties and heat resistance, and exhibits superior long-term hydrolysis resistance, chemical resistance, and oxidative deterioration resistance can be obtained.

The invention provides a high strength stone plastic floor and manufacturing method thereof. The stone plastic floor comprises a PVC substrate and a surface layer on a surface of the PVC substrate. Compositions of PVC substrate comprise: PVC powder from 20 to 35 weight percent, calcium carbonate from 60 to 70 weight percent, stabilizer from 1 to 3 weight percent, flexibilizer from 1 to 3 weight percent, lubricants from 0.4 to 1 weight percent, and colorant from 0.4 to 1 weight percent. The high strength stone plastic floor does not contain plasticizer so environmental risks are completely avoided. The contractility is good. The high strength stone plastic floor is resistant to high temperature and direct sunlight. Compared with conventional stone plastic floor, lifespan of the present invention is prolonged. The PVC substrate of the floor can be combined with different layers and can integrate different advantages of other floors.

A matte synthetic paper is a biaxially oriented polypropylene synthetic paper having a thickness of 25 to 300 m, and includes a printing surface layer as an outermost paper layer. Moreover, by adding a mist flour or a thermoplastic elastomer, the haze and gloss of the printing surface layer can be improved. According to Tappi T480, the printing surface layer having gloss of 15 to 50% is suitable to be printing paper.

A method of fabricating plastic products having a preselected color, comprising preparing a dispersion of pigment of the preselected color in cottonseed oil; supplying a preselected plastic resin for the product to be fabricated to a process machine having a rotating screw; furnishing the dispersion to the process machine at a position adjacent to threaded portion of the rotating screw; and blending the dispersion and the resin by rotating the screw.

Rotomolded polyethylene containers that are used to store sulfuric acid can become discolored on the interior surface which is in contact with the acid. This problem may be mitigated by the use of an additive package that contains two primary antioxidants.