Abstract:
A significant disadvantage of the use of polylactic acid (PLA) has been overcome by the use of acrylonitrile-butadiene-styrene (ABS) in combination with an epoxy functional styrene-acrylate oligomeric chain extender. The composition also often exceeds a threshold of 65° C. in heat deflection temperature. Use of an impact modifier further improves the industrial versatility of the heat resistant PLA composition.
Abstract:
The present invention relates to a plastic component having a visible part that is made in one single layer from a plastic molding compound and that comprises a transparent or translucent matrix, and having a light source that comprises one or more lamp elements, situated under the surface of the visible part. The visible part is implemented as essentially opaque in relation to daylight and transparent or translucent in relation to the light emitted by the lamp elements. The visible part also contains admixed effect pigments and defines a surface appearance image which, when the light source is inactive, essentially corresponds to the surface appearance image of the remaining wall of an object in which the plastic component is installed and which, when the light source is active, is essentially determined by the light source activity. The plastic component according to the invention is characterized in that the lamp elements are selected from a group which comprises light-emitting diodes, organic light-emitting diodes, and fiber-optic light systems, the lamp elements at least partially being embedded in the plastic molding compound of the visible part. The manifold uses of this plastic component comprise installation in vehicles, paneling elements, and furniture, as well as in housings of greatly varying devices.
Abstract:
Certain embodiments described herein are directed to polymer compositions including a base material, a secondary material and an antioxidant. The composition also includes crystalline regions and amorphous regions with the crystalline regions comprising at least 62% by volume of the composition. In some embodiments, the base material is an ultra high molecular weight polyethylene material and the secondary material is a polyethylene material that is different than the base material.
Abstract:
Disclosed is a stabilizer capable of giving a high degree of thermal stability to a polypropylene resin (PP resin). Also disclosed is a PP resin composition to which the stabilizer is added having a high degree of stability. Specifically disclosed is a stabilizer containing a copolymer (A) which is obtained by polymerizing an unsaturated monomer mixture composed of 1 to 50 parts by mass of an ethylenically unsaturated monomer (a) represented by the following general formula (I) and having a piperidyl group in a molecule, 50 to 99 parts by mass of at least one monomer (b) selected from isobutyl methacrylate, an alkyl (meth)acrylate having an alkyl group with 6 to 13 carbon atoms, and an aromatic vinyl monomer, and 0 to 20 parts by mass of an ethylenically unsaturated monomer (c) other than the monomers (a) and (b), with the proviso that the total of the monomers (a), (b), and (c) is 100 parts by mass: wherein R1 represents a hydrogen atom or an alkyl group having 1 to 2 carbon atoms, X represents an oxygen atom or an imino group, Y represents a hydrogen atom or an alkyl or alkoxyl group each having 1 to 20 carbon atoms, and Z represents a hydrogen atom or a cyano group.
Abstract:
A multifilament, a monofilament, a non-woven or a tape, each having 1 to 2000 Denier per filament and a draw ratio of 1:2 to 1:11 and each made of a composition containing the components (A) a polyolefin, (B) for example a compound of the formula (B-1-a-1), (C) for example a compound of the formula (C-1-b-1), wherein b, is a number from 2 to 20, and optionally (D) one or more inorganic and/or organic pigments.
Abstract:
The present invention provides a production process of a heat shrinkable film which is transparent, excellent in the balance of physical properties such as rigidity, elongation and shrink properties in both MD and TD, especially has a uniform film thickness and good stability in extrusion molding film while utilizing an inflation method; a block copolymer or hydrogenated product thereof, or a composition composed thereof excellent in tensile properties, optical properties, hardness, stretch properties, molding processability, shrink properties and solvent resistance and therefore suited for extrusion, injection molding and foams. The production process of a heat shrinkable film has a first inflation step of forming a tube having a thickness of from 0.05 to 0.5 mm by using a block copolymer having a vinyl aromatic hydrocarbon content of from 65 to 95 wt. % and a conjugated diene content of from 5 to 35 wt. %, or a hydrogenated product of the block copolymer; and a second inflation step, successively to the first inflation step, stretching the tube to from 1.5 to 5 times the original length in the TD in a fluid of from 65 to 100° C.
Abstract:
The invention relates to non-fibrous-reinforced thermoplastic moulding compositions comprising a metal powder as a heat stabilizer wherein the metal powder has a weight average particle size (dm) of at most 1 mm and the metal in the metal powder is selected from the group consisting of elementary metals from Group VB, VIIB, VIIB and VIIIB of the Periodic Table, and mixtures thereof, and next to the said metal powders a thermoplastic polyamide with an Mw of at most 50.000 g/mol, or a blend of at least two thermoplastic polymers with Tmelt or Tg differing by at least 20° C., or a second thermostabilizer. The invention also relates to the use of these compositions and high temperature applications
Abstract:
High temperature polyamide resin compositions for blow molding and articles blow molded from such compositions are provided. The blow molded articles exhibit excellent heat resistance, chemical resistance, and dimensional stability. The composition has a melting point of at least 275° C. and a glass transition temperature of at least 60° C. The composition comprises an aromatic polyamide, an impact modifier, and a stabilizer. The aromatic polyamide is a polymer or copolymer having repeating units derived from a carboxylic acid component and an aliphatic diamine component, the carboxylic component being terephthalic acid or a mixture of terephthalic acid and one or more other carboxylic acids, and the aliphatic diamine component being hexamethylene diamine or a mixture of hexamethylene diamine and 2-methyl pentamethylene diamine or 2-ethyltetramethylene diamine. The impact modifier is selected from the group of (i) ethylene polymers and copolymers grafted with carboxylic acid, an anhydride thereof, maleimide or an epoxy compound; (ii) olefin/arcylic acid/anhydride terpolymers and ionomers; and (iii) styrenic thermoplastic elastomers grafted with an anhydride of a carboxylic acid. The stabilizer is selected from the group of (i) phosphite and phosphonite stabilizers; (ii) hindered phenol stabilizers; (iii) hindered amine stabilizers; and (iv) aromatic amine stabilizers.
Abstract:
A thermoplastic composite includes stabilized raw lignocellulosic materials dispersed in a thermoplastic polymeric matrix. A method for stabilizing the raw lignocellulosic materials in a matrix includes at least one of: a) pre-melting of a thermoplastic polymeric material prior to combining with the raw lignocellulosic materials; b) reducing the melt temperature of the polymeric material; c) increasing the surface compatibilization of the raw lignocellulosic materials; d) thermally stabilizing the lignocellulosic material; and, e) any combinations of a) through d).
Abstract:
The present invention relates to a stabilizing agent for polymers or copolymers which is a copolymer of ethylene or propylene (A) and a vinyl compound (B) having the formula: wherein X is O, NH or NR5; R1, R2 and R3 are each independently H, C1-C8 alkyl, C1-C8 substituted aryl; R4 is H, C1-C8 alkyl, C6-C12 cycloalkyl, C1-C10 acyl, C1-C10 acyloxy or C1-C8 alkyl ether; R5 is C1-C8 alkyl and wherein the copolymer has at least 1 mol % (B) and has an MFR2 of 1-1000 g/10 min.