Abstract: A process and system for the precipitation of poly(phenylene ether) is described. Precipitated poly(phenylene ether) obtained by the processes disclosed herein are in the form of poly(phenylene ether) particles having a bulk density of 150 to 500 kg/m3, preferably 250 to 500 kg/m3.

Abstract: Thermoplastic compositions include from about 15 wt % to about 99 wt % of a polybutylene terephthalate (PBT) component; and from 0.01 wt % to about 85 wt % of at least one additional component, wherein: the PBT component comprises PBT derived from a post-consumer or post-industrial recycled (PCR) polyethylene terephthalate (PET) depolymerized to a high purity purified terephthalic acid (PTA) monomer and the thermoplastic composition exhibits an L* color value of at least about 74.

Abstract: Thermoplastic compositions include from about 15 wt % to about 98 wt % of a polybutylene terephthalate (PBT) component, from about 2 wt % to about 10 wt % of at least one brightening agent and from 0 wt % to about 83 wt % of at least one additional component. The PBT component includes PBT derived from post-consumer or post-industrial recycled (PCR) polyethylene terephthalate (PET). In particular, the PBT may be derived from the PCR PET by first depolymerizing the PCR PET to form a high purity bis(2-hydroxyethyl) terephthalate (BHET) monomer (e.g., greater than 95% purity), and then polymerizing the high purity BHET monomer with butane diol (BDO) to form the PBT. The thermoplastic compositions have an L* color value of at least about 94.

Abstract: A functional phenylene ether oligomer of the structure wherein Q1, Q2, Q3, Q4, x, y, and R are as defined herein. A curable composition includes the functional phenylene ether oligomer, and a thermoset composition includes a cured product derived from the curable composition.

Abstract: A copolymer having the structure (I) wherein Q1, Q2, Q3, Q4, m, and n are defined herein. The copolymer can be formed by oxidative copolymerization of 2,4,6-trimethyIresorcinoI with a monohydric phenol. Also describes are a composition comprising the copolymer and a solvent, and a composition comprising the copolymer and a thermosetting resin.

Abstract: A process for forming a capped poly(arylene ether) copolymer, the process comprising: combining an acid catalyst and an uncapped poly(arylene ether) composition comprising an uncapped poly(arylene ether) copolymer comprising a phenolic end group ortho-substituted with a (C1-C12-hydrocarbyl)(C1-C12-hydrocarbyl)aminomethylene group, to form a first reaction mixture; reacting the (C1-C12-hydrocarbyl)(C1-C12-hydrocarbyl)aminomethylene group of the uncapped poly(arylene ether) copolymer in the presence of the acid catalyst under conditions effective to cleave a (C1-C12-hydrocarbyl)(C1-C12-hydrocarbyl)amino group from the uncapped poly(arylene ether) copolymer, to form a second reaction mixture; adding a nucleophilic catalyst and a capping agent to the second reaction mixture; and reacting the capping agent and the uncapped poly(arylene ether) copolymer under conditions effective to provide a product mixture comprising the capped poly(arylene ether) copolymer; preferably wherein the (C1-C6-hydrocarbyl)(C1-C6-hydroc

Abstract: A composition comprises, based on the total weight of the composition, 25 wt % to 50 wt % of a polyetherimide; and 50 wt % to 75 wt % of a polyphthalamide; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A process and system for the precipitation of poly(phenylene ether) is described. Precipitated poly(phenylene ether) obtained by the processes disclosed herein are in the form of poly(phenylene ether) particles having a bulk density of 150 to 500 kg/m3, preferably 250 to 500 kg/m3.

Abstract: A method for the manufacture of a 2-aryl-3,3-bis(hydroxyaryl)phthalimidine including heating a reaction mixture comprising a phenolphthalein compound and a primary arylamine in the presence of an acid catalyst, and a heterocyclic aromatic amine co-catalyst, to form the 2-aryl-3,3-bis(hydroxyaryl) is provided. Polymers including structural units derived from the 2-aryl-3,3-bis(hydroxyaryl)phthalimidine are provided. Methods for the manufacture of a polycarbonate, including manufacturing the 2-aryl-3,3-bis(hydroxyaryl)phthalimidine, and polymerizing the 2-aryl-3,3-bis(hydroxyaryl)phthalimidine in the presence of a carbonate source are provided.

Abstract: A composition comprises, based on the total weight of the composition, 50 wt % to 90 wt % of a polyetherimide; and 10 wt % to 50 wt % of a filler comprising talc, titanium dioxide, zirconium oxide, neutral aluminum oxide, or a combination comprising at least one of the foregoing; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: The disclosure concerns healable polycarbonate resins comprising at least about 5 mol % of disulfide units, articles comprising the healable polycarbonate resin, and methods of activating the healable polycarbonate resin by exposing the healable polycarbonate resin to heat or radiation.

Abstract: A copolymer having the structure (I) wherein Q1, Q2, Q3, Q4, m, and n are defined herein. The copolymer can be formed by oxidative copolymerization of 2,4,6-trimethyIresorcinoI with a monohydric phenol. Also describes are a composition comprising the copolymer and a solvent, and a composition comprising the copolymer and a thermosetting resin.

Abstract: A functional phenylene ether oligomer of the structure wherein Q1, Q2, Q3, Q4, x, y, and R are as defined herein. A curable composition includes the functional phenylene ether oligomer, and a thermoset composition includes a cured product derived from the curable composition.

Abstract: A process for preparing a diglycidyl ether of formula (1) to (9) with epichlorohydrin and a catalyst, for a time and at a temperature to provide a first reaction mixture comprising a dichlorohydrin of formula (1-d) to (9-d); adding a base to the first reaction mixture to provide a second reaction mixture over a period of 15 minutes to 3 hours; and agitating the second reaction mixture for 2 to 5 hours at 40 to 60° C., to provide an as-synthesized diglycidyl ether of formula (1) to (9) having a purity of 96 to 99% or greater as determined by high performance liquid chromatography is provided. An as-synthesized or isolated diglycidyl ether of formula (1) to (9) made by the provided process is provided. A cured composition comprising the cured product of the provided diglycidyl ether, and an article comprising the same are provided.

Abstract: An improved method of manufacture of a bisphenol comprises heating a monohydric phenol to a first temperature sufficient to melt the monohydric phenol; adding a carbonyl compound to 2.0-3.0 molar equivalents, based on the moles of carbonyl compound, of the monohydric phenol in the presence of catalytic amounts of an organosulfonic acid catalyst and a reaction promoter at a second temperature sufficient to maintain unreacted monohydric phenol in a molten state; increasing the temperature to a third temperature higher than the second temperature, and mixing for a time sufficient to produce the bisphenol in a yield of 80 to 100%, based on the amount of carbonyl compound; wherein mineral acids, Lewis acids, and ion exchange resins are not used. The method is applicable to the manufacture of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, a useful intermediate for the manufacture of bi-functional poly(phenylene ether)s.

Abstract: A composition comprises, based on the total weight of the composition, 45 wt % to 75 wt % of a polyetherimide; and 20 wt % to 45 wt % of talc; and 5 wt % to 15 wt % of a fluorinated polymer; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops according to ASTM D-3638-85.

Abstract: A method for the manufacture of a 2-aryl-3,3-bis(hydroxyaryl)phthalimidine including heating a reaction mixture comprising a phenolphthalein compound and a primary arylamine in the presence of an acid catalyst, and a heterocyclic aromatic amine co-catalyst, to form the 2-aryl-3,3-bis(hydroxyaryl) is provided. Polymers including structural units derived from the 2-aryl-3,3-bis(hydroxyaryl)phthalimidine are provided. Methods for the manufacture of a polycarbonate, including manufacturing the 2-aryl-3,3-bis(hydroxyaryl)phthalimidine, and polymerizing the 2-aryl-3,3-bis(hydroxyaryl)phthalimidine in the presence of a carbonate source are provided.

Abstract: A composition comprises, based on the total weight of the composition, 50 wt % to 90 wt % of a polyetherimide; and 10 wt % to 50 wt % of a filler comprising talc, titanium dioxide, zirconium oxide, neutral aluminum oxide, or a combination comprising at least one of the foregoing; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: The disclosure concerns healable polycarbonate resins comprising at least about 5 mol % of disulfide units, articles comprising the healable polycarbonate resin, and methods of activating the healable polycarbonate resin by exposing the healable polycarbonate resin to heat or radiation.

Abstract: An improved method of manufacture of a bisphenol comprises heating a monohydric phenol to a first temperature sufficient to melt the monohydric phenol; adding a carbonyl compound to 2.0-3.0 molar equivalents, based on the moles of carbonyl compound, of the monohydric phenol in the presence of catalytic amounts of an organosulfonic acid catalyst and a reaction promoter at a second temperature sufficient to maintain unreacted monohydric phenol in a molten state; increasing the temperature to a third temperature higher than the second temperature, and mixing for a time sufficient to produce the bisphenol in a yield of 80 to 100%, based on the amount of carbonyl compound; wherein mineral acids, Lewis acids, and ion exchange resins are not used. The method is applicable to the manufacture of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, a useful intermediate for the manufacture of bi-functional poly(phenylene ether)s.