| Patent application number | Description | Published |
|---|
| 20080246173 | METHOD OF SEPARATING A POLY(ARYLENE ETHER) COMPOSITION FROM A SOLVENT, AND POLY(ARYLENE ETHER) COMPOSITION PREPARED THEREBY - A method of separating a poly(arylene ether) from a solvent includes treating a poly(arylene ether)-containing solution with a devolatilizing extruder to form an extruded composition, and cooling the extruded composition with a cooling device that does not immerse the extruded composition in water. The composition may be used to isolate a poly(arylene ether) from the solvent-containing reaction mixture in which it is prepared, or to remove solvent from a multi-component poly(arylene ether)-containing thermoplastic composition. | 10-09-2008 |
| 20090030141 | POLY(ARYLENE ETHER) COMPOSITION, METHOD, AND ARTICLE - The invention provides a composition including a crosslinked styrenic block copolymer, a poly(arylene ether), and a non-polyolefin crystalline or semi-crystalline resin. The composition exhibits an improved balance of stiffness, ductility, and heat resistance. The composition can be prepared by a process that includes melt-kneading the poly(arylene ether), an acid functionalized styrenic block copolymer, an amine crosslinking agent, and a non-polyolefin crystalline or semi-crystalline resin. | 01-29-2009 |
| 20090062478 | POLY(ARYLENE ETHER) PREPARATION METHOD - Capped poly(arylene ether)s are prepared by a method that includes reacting a poly(arylene ether) with a capping agent to form a capping reaction mixture, washing the capping reaction mixture with a concentrated basic aqueous solution, and isolating the capped poly(arylene ether) by a total isolation method. The washing method is effective for removal of capping-related impurities, and surprisingly does not result in decomposition of the capped poly(arylene ether). | 03-05-2009 |
| 20090084574 | POLY(ARYLENE ETHER) COMPOSITION AND ITS USE IN THE FABRICATION OF EXTRUDED ARTICLES AND COATED WIRE - An electron-beam cured poly(arylene ether) composition exhibits an excellent balance of flexibility, chemical resistance, and resistivity per unit volume. The chemical resistance of the composition is substantially improved by electron beam curing. The electron-beam cured poly(arylene ether) composition is useful for the fabrication of extruded articles, including insulation for automotive wire and cable. | 04-02-2009 |
| 20090088501 | FLAME-RETARDANT POLY(ARYLENE ETHER) COMPOSITION AND ITS USE AS A COVERING FOR COATED WIRE - A flame retardant poly(arylene ether) composition is described. In addition to the poly(arylene ether), the composition includes a polyolefin component, and a flame retardant composition that includes a metal dialkyl phosphinate, a nitrogen-containing flame retardant, and a liquid triaryl phosphate. The polyolefin component can be a polyolefin polymer and/or the polyolefin block of a poly(alkenyl aromatic)-polyolefin block copolymer. The composition is particularly suitable as a replacement for poly(vinyl chloride) in insulation for wire and cable. | 04-02-2009 |
| 20090088502 | FLAME-RETARDANT POLY(ARYLENE ETHER) COMPOSITION AND ITS USE AS A COVERING FOR COATED WIRE - A flame retardant poly(arylene ether) composition is described. In addition to the poly(arylene ether), the composition includes a polyolefin component, and a flame retardant composition that includes a metal dialkyl phosphinate and a nitrogen-containing flame retardant but excludes a liquid triaryl phosphate. The polyolefin component can be a polyolefin polymer and/or the polyolefin block of a poly(alkenyl aromatic)-polyolefin block copolymer. The composition is particularly suitable as a replacement for poly(vinyl chloride) in insulation for wire and cable. | 04-02-2009 |
| 20090247724 | POLY(ARYLENE ETHER) COPOLYMER - A poly(arylene ether) copolymer is the product of oxidative copolymerization of monomers including a monohydric phenol and a dihydric phenol. It has an intrinsic viscosity of about 0.04 to about 0.15 deciliter per gram and, on average, about 1.8 to about 2 hydroxyl groups per molecule. The poly(arylene ether) copolymer is enriched in low molecular weight copolymer chains and copolymer chains that include a terminal unit derived from the dihydric phenol. | 10-01-2009 |
| 20090318635 | POLY(ARYLENE ETHER)-POLYSILOXANE COMPOSITION AND METHOD - A thermoplastic composition includes a poly(arylene ether) and a poly(arylene ether)-polysiloxane block copolymer. The thermoplastic composition is prepared by a method that includes oxidatively copolymerizing a monohydric phenol and a hydroxyaryl-terminated polysiloxane. The method is simpler than prior methods of preparing poly(arylene ether)-polysiloxane block copolymers by linking pre-formed poly(arylene ether) and polysiloxane blocks. The method is also produces greater incorporation of polysiloxane into the poly(arylene ether)-polysiloxane block copolymer than prior methods of copolymerizing monohydric phenols and hydroxyaryl-terminated polysiloxane. | 12-24-2009 |
| 20100012373 | POLY(ARYLENE ETHER) COMPOSITION AND A COVERED CONDUCTOR WITH THIN WALL AND SMALL SIZE CONDUCTOR - A covered conductor comprising: a conductor; and a covering comprising a thermoplastic composition and the thermoplastic composition comprises: a poly(arylene ether) having an intrinsic viscosity greater than 0.25 dl/g as measured in chloroform at 25° C., a poly(alkenyl aromatic)polymer, a polyolefin resin and optionally a flame retardant and a compatibilizer, wherein the covered conductor essentially meets the performance requirement of ISO 6722, wherein the covering is disposed over the conductor, wherein the conductor has a cross section that meets as least one of following: (i) American Wire Gauge (AWG) from AWG 56 to AWG 26, (ii) a cross-section area from 0.000122 to 0.128 mm | 01-21-2010 |
| 20100084170 | COMPOSITE-FORMING METHOD, COMPOSITES FORMED THEREBY, AND PRINTED CIRCUIT BOARDS INCORPORATING THEM - A composite-forming process includes impregnating a reinforcing structure with a curable composition at a temperature of about 10 to about 40° C. The curable composition includes specific amounts of an epoxy resin, a poly(arylene ether), a solvent, and a curing promoter. The poly(arylene ether) includes, on average, about 1.6 to about 2.4 phenolic hydroxy groups per molecule, and it has a polydispersity index less than or equal to 2.2 and an intrinsic viscosity of about 0.03 to about 0.2 deciliter per gram. These characteristics substantially improve the solubility of the poly(arylene ether) in the curable composition and allow the curable composition to be formed and used at or near room temperature. Composites formed by the process and circuit boards including the composites are also described. | 04-08-2010 |
| 20100087591 | CAPPED POLY (ARYLENE ETHER) COMPOSITION AND PROCESS - A thermoset composition exhibiting reduced water absorption in the cured state includes an olefinically unsaturated monomer and a capped poly(arylene ether) prepared by the reaction of an uncapped poly(arylene ether) with an anhydride capping agent. The capped poly(arylene ether) is isolated and/or purified by methods that reduce the concentrations of polar impurities that contribute to water absorption by the cured composition. | 04-08-2010 |
| 20100122845 | POLY(ARYLENE ETHER) COMPOSITION AND A COVERED CONDUCTOR WITH FLEXIBLE COVERING WALL AND LARGE SIZE CONDUCTOR - Disclosed herein is covered conductors with a normal to large conductor cross-section area (AWG 5 to AWG 24). The thickness of the coating can be, for example, 0.25 to 8.0 millimeter (mm). Also disclosed are a thermoplastic composition comprising a poly(arylene ether) having an intrinsic viscosity greater than 0.25 dl/g as measured in chloroform at 25° C., a styrenic resin, a polyolefin resin, and optionally a flame retardant, a compatibilizer, or a combination of a flame retardant and a compatibilizer. The coating comprises the thermoplastic composition described above. | 05-20-2010 |
| 20100139944 | POLY(ARYLENE ETHER) COMPOSITION AND EXTRUDED ARTICLES DERIVED THEREFROM - A poly(arylene ether) composition includes a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, a flame retardant, and a poly(arylene ether)-polysiloxane block copolymer reaction product that itself includes a poly(arylene ether)-polysiloxane block copolymer. The composition is useful for forming extruded articles, including insulation for wire and cable. The poly(arylene ether)-polysiloxane block copolymer contributes improved flame retardancy and, in many cases, improved physical properties to the composition. | 06-10-2010 |
| 20110003962 | MORPHOLINE-SUBSTITUTED POLY(ARYLENE ETHER) AND METHOD FOR THE PREPARATION THEREOF - A poly(2,6-dimethyl-1,4-phenylene ether) prepared using a morpholine-containing polymerization catalyst has a monomodal molecular weight distribution with a reduced content of very high molecular weight species. It also exhibits increased morpholine incorporation in the high molecular weight fraction. Compared to commercially available poly(2,6-dimethyl-1,4-phenylene ether) prepared using a di-n-butylamine-containing polymerization catalyst, the poly(2,6-dimethyl-1,4-phenylene ether) of the invention exhibits reduced odor. Compared to other poly(2,6-dimethyl-1,4-phenylene ether) prepared using a morpholine-containing polymerization catalyst, the poly(2,6-dimethyl-1,4-phenylene ether) of the invention exhibits improved molecular weight build during compounding and improved compatibilization with polyamides. | 01-06-2011 |
| 20110160421 | Process for Formation of Poly(arylene Ethers) with Lower Fine Particle Content - The invention is directed to a method for producing poly(arylene) ethers with improved particle size characteristics. The improved particle size characteristics of the polyphenylene ether include one or both of: (i) up to about 50 weight percent of particles smaller than 38 micrometers; and a (ii) mean particle size greater than 100 or more micrometers. | 06-30-2011 |
