摘要:
A method for making a faux wood material with a multilayer pattern effect and a mixed plastic material for use in the method involve: performing a compounding process on a thermoplastic elastomer material, a hard-segment-structure material and a foaming agent to form the mixed plastic material; performing through an extruder a first foaming process on the mixed plastic material to form a preliminary sheet having a density equal to 10% to 20% of the density of the mixed plastic material and a thickness of 1-4 mm; stacking preliminary sheets up; and performing through a hot-pressing mold a second foaming process on the stacked preliminary sheets to form the faux wood material having a density equal to 40%-50% of the density of the mixed plastic material. Accordingly, through the two foaming processes, a multilayer pattern effect can be presented on the faux wood material due to its density difference.
摘要:
A prepreg contains a base material containing a reinforcing fiber and a semi-cured product of a resin composition impregnated into the base material containing a reinforcing fiber. The prepreg after cured has a glass transition temperature (Tg) which is higher than or equal to 150° C. and lower than or equal to 220° C. The resin composition contains (A) a thermosetting resin and (B) at least one compound selected from a group consisting of core shell rubber and a polymer component having a weight average molecular weight of 100000 or more. An amount of the (B) component is higher than or equal to 30 parts by mass and lower than or equal to 100 parts by mass with respect to 100 parts by mass of the (A) component.
摘要:
The present invention relates to opaque polymers functionalized with phosphorus acid groups, composites of TiO2 particles and the opaque polymers, and methods for their preparation. The composites are useful in coatings formulations and have been shown to exhibit improved hiding benefits in coated substrates over compositions containing non-functionalized opaque polymer and TiO2.
摘要:
The invention relates to a method for producing compositions containing vinylaromatic copolymers which are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by an improved surface quality once the extruded polymer, before being granulated, or the granulate, after being granulated, has been moistened by bringing the polymer in contact with liquid water in a water bath, a tube system filled with water, or a dipping tank, thus making the compositions suitable for producing molded articles having a class A surface that remains flawless over time.
摘要:
The present invention relates to thermoplastic molding compounds F containing at least two graft rubbers P-I and P-II which are processed by the co-precipitation of a mixture of the respective emulsions containing P-I and P-II. The present invention further relates to a method for producing such thermoplastic molding compounds F and to molded bodies obtained from a thermoplastic molding compound F according to the invention.
摘要:
The present invention relates to opaque polymers functionalized with phosphorus acid groups, composites of TiO2 particles and the opaque polymers, and methods for their preparation. The composites are useful in coatings formulations and have been shown to exhibit improved hiding benefits in coated substrates over compositions containing non-functionalized opaque polymer and TiO2.
摘要:
A foamable polymeric mixture is provided that includes a polymer composition, at least one blowing agent, and at least one non-VOC processing aid comprising one or more of an adipate ester; benzoate; fatty acids and their derivatives, propylene carbonate; ethylene oxide/propylene oxide block copolymer; styrene-methyl methacrylate copolymer; and a dispersion of organic salt of a fatty acid in copolymer. The blowing agent comprising at least one of carbon dioxide, hydrofluoroolefins, hydrochlorofluoroolefins and hydrofluorocarbons, and mixtures thereof.
摘要:
A thermoplastic moulding compound that has proved to be extremely weather-resistant and low-emission containing the following components: A) 3-77% by weight of one or more styrene copolymers, component A; B) 15-89% by weight of one or more polyamides, component B; C) 5-50% by weight of two or more graft rubbers without olefinic double bonds in the rubber phase, component C; D) 1-25% by weight of a terpolymer of styrene, acrylonitrile and maleic anhydride, component D; E) 2-30% by weight of rubber based on olefinic monomers, component E; F) 0-50% by weight of fibrous or particulate filler or mixtures thereof, component F; G) 0-40% by weight of further additives, component G.
摘要:
A thermoplastic resin composition for foam molding including: a component (A) in an amount of 1 to 20 parts by mass; a component (B) in an amount of 0 to 50 parts by mass; an aromatic polycarbonate resin (C) in an amount of 40 to 90 parts by mass; and a high-molecular-weight resin (D) different from the components (A) to (C), having a weight average molecular weight greater than or equal to 2,000,000. When a total of the components (A) to (C) is 100 parts by mass, an amount of the high-molecular-weight resin (D) is 0.1 to 10 parts by mass. Component (A): a rubber-reinforced styrenic resin (A) derived from polymerization, in the presence of a rubbery polymer (a) of a vinyl monomer (b1) including an aromatic vinyl compound; component (B): and a styrenic resin (B) derived from polymerization of a vinyl monomer (b2) including an aromatic vinyl compound.
摘要:
Polymer polyols are made by polymerizing an ethylenically unsaturated monomer in a continuous polyol phase. The polymerization is stabilized with a macromer or a pre-formed polymer made by polymerizing or copolymerizing the macromer. The macromer is a random polymer of propylene oxide and ethylene oxide in defined ratios, which also contains polymerization carbon-carbon double or triple bond. Polymer polyols made in the process exhibit little viscosity rise when blended with water. Flexible polyurethane foam made from the polymer polyol exhibits excellent hardness, have good surface characteristics and, when pigmented, exhibit good, uniform coloration.