Abstract: The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation: A/X.T A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine).(Cb diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, advantageously between 9 and 18, X.

Abstract: A polyamide-imide coating material includes a polyamide-imide resin including a repeating unit of a chemical structure represented by the following general formula (1) in a molecular chain, and a solvent for dissolving the polyamide-imide resin R1: monovalent organic group R2: divalent organic group R3: trivalent organic group.

Abstract: Sizing compositions to size fibers or particles used in plastic composites are described. The compositions may include a solution with a polymerization compound selected from: (a) at least one non-isocyanate-containing polymerization initiator (PI) for initiating the polymerization of caprolactam monomers; or (b) at least one precursor for a non-isocyanate-containing PI for initiating the polymerization of caprolactam monomers. Methods of making the sizing the composition, as well as methods of making reinforced thermoplastic composites from sized fibers or particles, are also described.

Abstract: This invention relates generally to a thermoplastic compositions and, more particularly, to compositions comprising a polymer matrix and comprising a filler composition. To that end, according to the aspects of the invention, a thermoplastic composition is disclosed that generally comprises a polymer matrix and at least one filler composition. The polymer matrix generally comprises at least one polycarbonate or polyamide. The filler composition generally comprises at least one laser direct structuring additive with a mean particle size of less than 1 ?m and may additionally optionally comprise flame retardants, stabilizers and process aids.

Abstract: Reinforced polyimide compositions that include a reinforcing filler and a polyamide flow promoter improve flow promotion while maintaining other mechanical, thermal, flame and/or electrical properties of the compositions. The compositions may include an inorganic or organic reinforcing filler, a polyimide resin such as polyetherimide or polyamideimide and a small amount of an aromatic or aliphatic polyamide as the flow promoter. The resulting compositions may be used in thinner-wall applications while still retaining the advantageous physical properties of reinforced polyimide compositions not having the flow promoter. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Disclosed herein are methods and compositions of polycarbonate compositions having, among other characteristics, improved thermal dimensional stability, hydrolytic stability and high refractive index. The resulting polycarbonate copolymer composition, comprising a polycarbonate and a polysulfone, can be used in the manufacture of articles for optical applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: The invention relates to a polymer film made of a polyamide composition comprising at least 80 weight percentage (wt. %) of a semi-crystalline semi-aromatic polyamide with a melting temperature (Tm) of at least 270° C., wherein the wt. % is relative to the total weight of the polymer composition, wherein the polymer film has an average coefficient of thermal expansion in plane in the temperature range of 20° C.-Tg, measured in plane with the method according to ASTM D969-08, of at most 40 ppm/K. The said film can be made from a polyamide moulding composition comprising said polyamide by film casting followed by biaxial stretching. The film has properties suitable for carrier films in flexible printed circuit boards.

Abstract: Provided is a thin-wall article formed from a polyamide resin which can be stably produced with little variation in mechanical properties such as flexural strength, flexural modulus and impact resistance. A thin-wall article formed by molding a polyamide resin (C) obtained by polycondensing a diamine (A) and a dicarboxylic acid (B) or a polyamide resin composition containing the polyamide resin, wherein 70 mol % or more of a diamine structural unit is derived from xylylenediamine and the polyamide resin has a melt viscosity (i) of 50 to 200 Pa·s as measured at a temperature of the melting point plus 10° C. for a holding time of 6 minutes at a shear rate of 122 sec?1.

Abstract: Non-fibrous-reinforced thermoplastic moulding compositions comprising a metal powder as a heat stabilizer are provided. 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, VIB, VIIB and VIIIB of the Periodic Table, and mixtures thereof. A thermoplastic polyamide is also provided 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 in high temperature applications.

Abstract: A polyamide resin composition includes (A) a semi-aromatic polyamide resin including a dicarboxylic acid unit including about 40 to about 100 mol % of an aromatic dicarboxylic acid unit, and an aliphatic diamine unit; (B) a glass fiber, and optionally (C) a heat stabilizer including copper halide and/or alkali metal halide, where a content of a terminal carboxyl group [COOH] and a content of a terminal amino group [NH2] of a molecular chain in the semi-aromatic polyamide resin (A) satisfy the following conditions: [COOH]>37 ?eq/g; [NH2]>80 ?eq/g; and, [NH2]/[COOH]>1.

Abstract: An organic compound has the general structural formula I. In the formula I, Core is a conjugated organic unit capable of forming a rod-like macromolecule, n is a number of the conjugated organic units in the rod-like macromolecule, Gk is a set of ionogenic side-groups, and k is a number of the side-groups in the set Gk. The set of the ionogenic side-groups provide solubility of the organic compound or its salts and give rigidity to the rod-like macromolecule. The number n provides molecule anisotropy that promotes self-assembling of macromolecules in a solution of the organic compound or its salts, forming lyotropic liquid crystal. The solution is capable of forming a solid optical retardation layer of positive A-type substantially transparent to electromagnetic radiation in the visible spectral range. An optical film based on an organic compound of the general formula I and a method of making same are also disclosed.

Abstract: An injection molding composition, having a small fluctuation characteristic and a better characteristic, is provided. The above composition is the injection molding composition comprising a ferrite powder which is a collection of ferrite particles, a first binder and a second binder. A weight and a specific surface area of the ferrite powders are represented by Wp and S, and a weight and a density of the first binder and the second binder is represented by Wb1, Wb2, and Db1, Db2. A hypothetical thickness Tb1 of the first binder is 2.0 to 15.0, and a hypothetical thickness Tb2 of the second binder is 16.5 to 32.0. In the composition, it is preferable that coated ferrite particles coating the outer circumference of the ferrite particles with the first binder and the second binder exist.

Abstract: In a process for preparing a polyamide based on dicarboxylic acids and diamines in an extruder, a solid mixture comprising a monomer mixture composed of 50 mol % of dicarboxylic acid mixture composed of from 60 to 88 % by weight of terephthalic acid and from 12 to 40% by weight of isophthalic acid, in which up to 20% by weight of the dicarboxylic acid mixture may also be replaced by other dicarboxylic acids, and 50 mol % of hexamethylenediamine which may be up to 20% by weight replaced by other C2-30-diamines, in a corotatory twin-screw extruder for a residence time of from 10 seconds to 30 minutes, is heated to a temperature in the range from 150 to 400° C. while removing steam and if appropriate diamines through venting orifices.

Abstract: There is provided a coloring composition including: a colorant; and a resin, wherein a content of the colorant is 50% by mass or more based on total solids of the coloring composition, and a solid acid number of a resin having a highest solid acid number among all kinds of resins contained in the coloring composition, is 80 mg KOH/g or less.

Abstract: What is described is the use of a polyamide moulding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at least 2. Here, the composition contains 30-100% by weight of a polyamide or a polyamide mixture, consisting of 50-100% by weight of at least one amorphous and/or microcrystalline polyamide having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms, and 0-50% by weight of at least one semi-aromatic polyamide. In addition the moulding composition comprises 0.01-20% by weight of one or several inorganic white pigments.

Abstract: Fire retardant or flame retardant additives are incorporated into thermoplastic, thermoset, and/or elastomeric polymer materials to form polymer compositions having improved fire retardant properties. More particularly, the polymer compositions of the present invention comprise additive compositions which have the effect of improving the FR effectiveness, the additive compositions comprising a mesoporous silicate additive. In addition, the polymer compositions of the present invention comprise additive compositions comprising a mesoporous silicate additive and a filler, wherein the filler is a flame retardant addition, an inert filler, or combinations thereof.

Abstract: A polyamide moulding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at most 15. The composition contains 30-100% by weight of a polyamide mixture, consisting of more than 50 and up to 98% by weight of at least one semi-aromatic polyamide comprising 2 to up to 50% by weight of amorphous and/or microcrystalline polyamides having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms. In addition, the composition comprises inorganic white pigments. fibrous or particulate additives, impact toughness modifier and/or polymers different from (A), 0-25% by weight of a flame retardant.

Abstract: Provided are a method for producing a resin-based composite material in which a nano-filler can be easily, uniformly dispersed in a crosslinkable thermoplastic resin, and thereby, an excellent function can be imparted; and a method for producing a crosslinked resin molded product, characterized by using the resin-based composite material. A method for producing a resin-based composite material is characterized by including a step of uniformly mixing a dispersion, which is prepared by nano-dispersing a nano-filler in a liquid dispersant, with a crosslinkable thermoplastic resin. A method for producing a crosslinked resin molded product is characterized by including molding a resin-based composite material obtained by uniformly mixing a dispersion, which is prepared by nano-dispersing a nano-filler in a liquid dispersant, with a crosslinkable thermoplastic resin, and then crosslinking the resin.

Abstract: The invention relates to low molecular mass products and to the use thereof as reversible or permanent low-temperature crosslinkers in Diels-Alder reactions.

Abstract: An artificial feather for a shuttlecock including: a sheet form vane portion; and a rachis portion supporting the vane portion, the rachis portion being made of resin including glass fiber and carbon nanotube.

Abstract: There is provided a polyimide precursor which can alter the hydrophilicity/hydrophobicity of the surface of a cured film formed readily even by a low level of ultraviolet ray irradiation; and a polyimide produced from the polyimide precursor. The polyimide precursor having a structure represented by the following formula (1): where A represents a tetravalent organic group; B represents a bivalent organic group having a thiol ester bond in its main chain; R1 and R2 independently represent a hydrogen atom or a univalent organic group; and n represents a natural number.

Abstract: The invention provides a cross-linked poly-?-lysine polymer. The poly-?-lysine and cross linker are linked by amide bonds and may the cross linker has at least two functional groups capable of reacting with an alpha carbon amine of poly-?-lysine. The polymer is suitably insoluble in water and other solvents and is provided in particulate form. The invention provides a particulate support comprising the cross-linked poly-?-lysine polymer and the polymer may provide the particle itself or be coated on a particle for example silica. The polymer is useful in a wide range of applications including wound treatment, as a medical diagnostic comprising a particulate support and a functional material bound or retained by the support and solid phase synthesis of peptides, oligonucleotides, oligosaccharides, immobilisation of species, cell culturing and in chromatographic separation.

Abstract: The present relates to nylon-5,10 molding compositions comprising A) from 40 to 90% by weight of a nylon-5,10, B) from 10 to 60% by weight of fiber-containing or mineral-containing fillers, C) from 0 to 20% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%. The present invention moreover relates to a process for the preparation of these molding compositions, to the use of these molding compositions for the production of moldings of any type, and to the resultant moldings, preferably motor vehicle bodywork parts or electronics components of any type, foils, and fibers.

Abstract: Provided is a thermoplastic resin composition which is excellent in platability (appearance of plating), and keeps high reflectance even after thermal aging. A thermoplastic resin composition comprising: per (A) 100 parts by weight of a crystalline thermoplastic resin having a melting point, measured by differential scanning calorimetry (DSC) at a heating rate of 10° C./min, of 250° C. or above; (B) 10 to 80 parts by weight of a glass filler; (C) 1 to 30 parts by weight of a laser direct structuring additive having a reflectance at 450 nm of 25% or above; and (D) 20 to 150 parts by weight of titanium oxide.

Abstract: Temporary adhesives include a thermoplastic polymer comprising from about 30% by weight to about 80% by weight of the temporary adhesive, a solvent comprising from about 20% by weight to about 70% by weight of the temporary adhesive, and a filler material comprising from about 0.2% to about 5% by weight of the temporary adhesive. Methods of processing a semiconductor device wafer include bonding the semiconductor device wafer to a surface of a carrier substrate using a temporary adhesive including a filler material comprising from about 0.2% to about 5% by weight of the temporary adhesive, thinning the semiconductor device wafer, and, while the temporary adhesive remains on the surface of the carrier substrate proximate a peripheral edge thereof, subjecting the thinned semiconductor device wafer to one or more back side processing operations. Methods of forming a thinned semiconductor wafer include using such a temporary adhesive.

Abstract: An environmental friendly poly(ether-fattyamide) coating composition for mild steel plates or the like comprises and/or consists of a condensation polymerization product of a fatty diol and an aromatic/cyclic diol and wherein the fattyamide diol is synthesized using rapeseed oil and further cured with an aminoplast resin and a catalyst. The rapeseed oil is combined with a crosslinker such as hexa methoxy melamine formaldehyde, butylated melamine formaldehyde, urea formaldehyde of hydroxyl values of 220-240 mg KOH/gm of resin and curing catalysts. The curing catalyst may be para toluene sulphonic acids, dodecyl sulphonic acids, orthro phosphoric acid in a solvent such as xylene, ethyl methyl ketone, ethylene glycol mono methyl ether and aromatic hydrocarbons. Additional agents such as surfactants, stabilizers, wetting agents, flow modifiers, dispersing agents, adhesion promoters and UV absorbers may be added.

Abstract: A transparent polyamide elastomer of the general structure (I), where R1 is a polyamide segment formed from a) 10-100 mol % of alkyl-substituted bis(aminocyclohexyl)methane or bis(aminocyclohexyl)propane and 0-90 mol % of other cycloaliphatic, aliphatic or aromatic C6-C36 diamines, based on the total amount of diamine in the polyamide segment, and b) aliphatic C4-C36 dicarboxylic acids, cycloaliphatic or aromatic C8-C36 dicarboxylic acids, and c) optionally lactams or aminocarboxylic acids C6-C12, R2 being selected from the group of the divalent radicals: linear or branched C2-C5 polyoxyalkylene, polyolefin, polysiloxane with a number-average molar mass in the range of 200-3000 g/mol, C2-C36 alkylene, C6-C36 cycloalkylene, C6-C20 aryl, polycaprolactone, polyesters based on aliphatic or cycloaliphatic dicarboxylic acids and diols, aliphatic polycarbonate, and also copolymers of or mixtures of these elements, and X1 and X2 independently of one another being amide (CONH) or ester (COO) bonds.

Abstract: The present invention relates to a novel polyamide synthesized from biosourced monomers. The novel polyamide comprises the repeating unit of formula I below: in which A represents a covalent bond or a divalent hydrocarbon-based group chosen from saturated or unsaturated aliphatics, saturated or unsaturated cycloaliphatics, aromatics comprising at least 5 carbon atoms, arylaliphatics and alkylaromatics; X represents a divalent group of formula II or III below: The present invention also relates to the process for preparing the said polyamide, to its uses, and to articles and compositions comprising the said polyamide.

Abstract: (Problem to be Solved) There is provided a reinforced polyamide resin pellet that is excellent in plasticization time stabilization properties during molding and molding appearance stability under molding conditions in long-term continuous molding. (Solution) A reinforced polyamide resin pellet comprising: (A) a polyamide resin having a melting point of 200 to 270° C.; and (B) at least one inorganic filler selected from the group consisting of chopped strand glass fibers, carbon fibers, wollastonite, talc, mica, kaolin, barium sulfate, calcium carbonate, apatite, sodium phosphate, fluorite, silicon nitride, potassium titanate, and molybdenum disulfide, and wherein the pellet has a length of 1 to 5 mm and a ratio of a cross-sectional major axis to minor axis (major axis/minor axis) of 1.3 to 2.5.

Abstract: The invention relates to an optically transparent polymer film or extrudate product made of a polymer composition comprising a semi-crystalline polyamide having a melting temperature of at least 270° C. or a blend of the semi-crystalline polyamide (A) and a second polymer (B), and optionally at least one additive, wherein the semi-crystalline polyamide (A) is present in an amount of more than 50 wt. %, relative to the total weight of the polymer composition, the polymer composition in the optically transparent polymer film or extrudate product has a melting temperature (Tm-C) in the range of 270-340° C., and wherein the film or a part of the extrudate product has a haze of less than 12% and a light transmittance, of at least 88% measured with the method according to ASTM D1003A.

Abstract: The invention provides a resin component used within a memory disk drive device and a highly reliable memory disk drive device using the resin component, the resin component having excellent flame resistance and minimal outgas. A resin component used inside a memory disk drive device (1), the resin component being an insulating bushing for protecting a lead of a motor (2) when the lead is connected to a circuit board; a carriage (4) being molded integrally with a coil for driving a swing arm (3) provided with a pickup head (3a) for reading or writing information on a memory disk on a distal end thereof, and the carriage adapted for balancing the weight of the swing arm (3); or a ramp (5) for retracting the pickup head (3a) when the memory disk stops. The resin component is a resin article molded from an amorphous resin, a crystalline resin, or a liquid crystal polymer resin, the molded resin article having 30 ppm or less outgas when measured by a prescribed method.

Abstract: The invention relates to a composition containing a particulate solid; an organic medium; and a quaternised polyester salt which comprises a product obtained/obtainable by reaction of (i) a polyester containing a tertiary amino group; and (ii) a quaternising agent suitable for converting the tertiary amino group to a quaternary nitrogen, wherein the quaternising agent is a hydrocarbyl epoxide in combination with an acid, or mixtures thereof. The invention further relates to the use of the product as a dispersant. The invention further relates to the use of the dispersant in media, such as inks, mill bases, plastics and paints.

Abstract: An irreversible thermochromic ink composition can include thermochromic pigment capsules dispersed in a carrier. The irreversible thermochromic pigment capsules can include an inner core having a color changing dye, a color activator for activating the color changing dye, and a wax, an outer core surrounding the inner core and comprising a color destroying agent, and a shell surrounding the outer core. Alternatively, the irreversible thermochromic pigment capsules can include an inner core having a color destroying agent and a wax, an outer core surrounding the inner core and comprising a color changing dye and a color activator for activating the color changing dye, and a shell surrounding the outer core. Written marks made with the irreversible thermochromic inks can be rendered a different color or substantially colorless by application of a sufficient amount of heat to melt or substantially liquefy the wax in the irreversible thermochromic pigment capsules.

Abstract: There is provided a polyimide precursor which can alter the hydrophilicity/hydrophobicity of the surface of a cured film formed readily even by a low level of ultraviolet ray irradiation; and a polyimide produced from the polyimide precursor. The polyimide precursor having a structure represented by the following formula (1): (where A represents a tetravalent organic group; B represents a bivalent organic group having a thiol ester bond in its main chain; R1 and R2 independently represent a hydrogen atom or a univalent organic group; and n represents a natural number).

Abstract: The present disclosure is directed to a method of increasing optical density by incorporating carbon black in to a colored polyimide composition to obtain a colored polyimide film. The colored polyimide film has 48 to 94 weight percent of a polyimide, 5 to 25 weight percent pigment and 0.05 to 2 weight percent carbon black.

Abstract: Carbon nanostructures free of an adhered growth substrate can include a plurality of carbon nanotubes that are branched, crosslinked, and share common walls with one another. Under applied shear, crosslinks between the carbon nanotubes in carbon nanostructures can break to form fractured carbon nanotubes that are branched and share common walls. Methods for making polymer composites from carbon nanostructures can include combining a polymer matrix and a plurality of carbon nanostructures that are free of an adhered growth substrate, and dispersing the carbon nanostructures in the polymer matrix under applied shear. The applied shear breaks crosslinks between the carbon nanotubes to form a plurality of fractured carbon nanotubes that are dispersed as individuals in the polymer matrix. Polymer composites can include a polymer matrix and a plurality of fractured carbon nanotubes dispersed as individuals in the polymer matrix.

Abstract: A method for the manufacture of a polyetherimide composition includes catalyzing the reaction of a dianhydride and an organic diamine with a catalyst selected from guanadinium salts, pyridinium salts, imidazolium salts, tetra(C6-24)aryl ammonium salts, tetra(C7-24 arylalkylene) ammonium salts, dialkyl heterocycloaliphatic ammonium salts, bis-alkyl quaternary ammonium salts, (C7-24arylalkylene)(C1-16alkyl) phosphonium salts, (C6-24aryl)(C1-16alkyl)phosphonium salts, phosphazenium salts and combinations thereof, optionally in the presence of a solvent.

Abstract: A thermoplastic resin composite with improved specific flexural strength, and a molded body containing the thermoplastic resin composite. A thermoplastic resin composite containing a resin component which is a polyamide resin or polypropylene resin, and hollow glass microspheres, wherein the hollow glass microspheres are surface treated with from 0.5 to 3 mass % of a silane coupling agent and from 1 to 5 mass % of a synthetic resin emulsion, based on 100 mass % of hollow glass microspheres.

Abstract: Disposable article that include fibers formed from compositions comprising thermoplastic polymers and waxes are disclosed, where the wax is dispersed throughout the thermoplastic polymer.

Abstract: An aliphatic polyester-based sheet including at least Layer A including an aliphatic polyester, wherein XA of the Layer A is 3-60% and the Layer A contains a crystal nucleating agent and a compound having hydrogen bonding properties with the crystal nucleating agent, and haze of the entire sheet is less than 10%.

Abstract: The present invention deals with a novel curable composition comprising bis-benzoxazine and an amine-functionalized triazine, especially a di-isoimide, and the use thereof in the preparation of encapsulated printed wiring boards, especially flexible printed wiring boards. The curable composition hereof beneficially effects crosslinking of bis-benzoxazine at a lower temperature than has heretofore been provided in the art.

Abstract: Disclosed is a polyamideimide-based film coating composition free from any restricted substance or a substance which might possibly be a restricted one such as N-methyl pyrrolidone and N-ethyl pyrrolidone and capable of replacing a conventional coating composition using a solvent such as N-methyl pyrrolidone. The polyamideimide-based film coating composition of the present invention is a polyamideimide-based film coating composition comprising a polyamideimide resin and a solvent, the polyamideimide resin being dissolved as a binder in the solvent, wherein the solvent contains ?-butyrolactone and cyclopentanone, and a volume of ?-butyrolactone is 50% by volume or more compared to a total volume of ?-butyrolactone and cyclopentanone.

Abstract: This invention describes a thermoplastic moulding compound, specifically a polyamide moulding compound, consisting of: (A) 20-88% by weight thermoplastic synthetic, preferably polyamide; (B) 10-70% by weight fibre-shaped aggregates; (B1) 10-70% by weight glass fibres that consist primarily of silicon dioxide, aluminium oxide, and magnesium oxide; (B2) 0-20% by weight glass fibres that differ from the fibres in components (B1); (B3) 0-20% by weight additional fibre-shaped aggregates that differ from the fibres in components (B1) and (B2), are not based on glass, and are selected from the following group: carbon fibres, graphite fibres, aramide fibres, nanotubes; (C) 2-40% by weight particulate filler material; (D) 0-2% by weight additives; whereby the sum of (A) through (D) equals 100% weight.

Abstract: The present disclosure describes an additive that may be used in the manufacture of thin-film polyamide composite membranes. Thin-film polyamide composite membranes are used in filtration processes, such as reverse osmosis and nanofiltration. The additive may be an amino-siloxane compound. The amino-siloxane compound includes repeated groups of silicon bonded to oxygen with at least one amine functional group. Optionally, the amino-siloxane compound may also include a hydrophilic group. The additive reacts with an aqueous phase and an organic phase to form a thin polyamide film on a porous substrate.

Abstract: The present invention relates to a process for the treatment of technical textiles based on thermoplastic fibers and comprising a coating, such as, in particular, airbags, using the principle of centrifugal decanting to separate the fiber residues and the coating material. The invention also relates to a process for the manufacture of a thermoplastic composition, in particular for molding, obtained by use of the fiber residues as obtained and optionally of reinforcing fillers. The distinguishing feature of this invention is based on the preparation of the fabric devoid of coating, thus resulting in formulations with elevated mechanical performances.

Abstract: A film whose outer layer is composed of a molding composition which is in essence composed of the following components: a) from 3 to 50% by weight of a polyamide, selected from the group of PA11 and PA12, and b) from 50 to 97% by weight of a polyamide, selected from the group of PA1012 and PA1212, where the percentages are based on the entirety of components a) and b), is suitable for decoration of moldings which retain their gloss during their service time.

Abstract: (Problems to be solved) Provision of a polyamide composition with good heat resistance, stability under heating, heat resistant color tone stability, reflow heat resistance properties and fogging properties. (Solution) A polyamide obtained by polymerizing (a) a dicarboxylic acid containing at least 50 mol % of an alicyclic dicarboxylic acid and (b) a diamine containing at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end content of less than 30? equivalents/g.

Abstract: A transformer assembly is provided that includes a housing, transformer oil disposed within the housing, a plurality of coils of electrically conductive wire, and aliphatic polyamide insulation material operable to insulate the coils disposed within the oil. The plurality of electrically conductive coils is disposed in the housing and in contact with the transformer oil. The aliphatic polyamide insulation material includes stabilizing compounds and nano-fillers. The stabilizing compounds provide thermal and chemical stability for the insulation material.

Abstract: Some implementations provide a composite material that includes a first material and a second material. In some implementations, the composite material is a metamaterial. The first material includes a chiral polymer (e.g., crystalline chiral helical polymer, poly-?-benzyl-L-glutamate (PBLG), poly-L-lactic acid (PLA), polypeptide, and/or polyacetylene). The second material is within the chiral polymer. The first material and the second material are configured to provide an effective index of refraction value for the composite material of 1 or less. In some implementations, the effective index of refraction value for the composite material is negative. In some implementations, the effective index of refraction value for the composite material of 1 or less is at least in a wavelength of one of at least a visible spectrum, an infrared spectrum, a microwave spectrum, and/or an ultraviolet spectrum.

Abstract: An asymmetric tape and a system and method for impregnating at least one fiber roving with a polymer resin to form an asymmetric tape are provided. The asymmetric tape includes a polymer resin, and a plurality of fibers embedded in the polymer resin to form a fiber reinforced polymer material. The fiber reinforced polymer material includes a first surface and an opposing second surface. The fibers are disposed in the fiber reinforced polymer material to form a resin rich portion and a fiber rich portion. The resin rich portion includes the first surface and the fiber rich portion includes the second surface.