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: A method includes depolymerizing post-consumer or post-industrial recycled polyethylene terephthalate (rPET) to form bis(2-hydroxyethyl) terephthalate (BHET), and reacting at least a portion of the BHET with a catalyst to form an alcohol. The alcohol includes cyclohexanedimethanol (CHDM) or 1,4-phenylenedimethanol (PDM). Further steps of the method include polymerizing the alcohol in the presence of additional BHET to form a polyester. The polyester may include poly(cyclohexylenedimethylene terephthalate (PCT), polyethylene terephthalate glycol (PETG) copolyester, polycyclohexylene dimethylene terephthalate glycol (PCTG) copolyester, polycyclohexylene dimethylene terephthalate acid (PCTA), or a monomer having repeating units with the structure (I), wherein n is an integer having a value of at least 20.

Abstract: A catalyst precursor composition for forming a phenol alkylation catalyst, the composition comprising: 70 to 98 weight percent of abase oxide comprising: magnesium oxide with a Brunauer-Emmett-Teller surface area from 75 meter2/gram to 220 meter2/gram, preferably from 75 meter2/gram to 140 meter2/gram, more preferably from 90 meter2/gram to 130 meter2/gram; or magnesium carbonate with a Brunauer-Emmett-Teller surface area of from 100 meter2/gram to 220 meter2/gram, preferably from 120 meter2/gram to 200 meter2/gram; or a combination thereof; at least one metal promoter precursor comprising an iron precursor, a manganese, a vanadium precursor, or a copper precursor; and a pore former, a lubricant, a coke inhibitor; and optionally, a strength additive; and optionally a binder, and a method of alkylating phenol using a catalyst derived from the catalyst precursor.

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 purified 2-hydrocarbyl-3-(dihydroxyfluoresceinyl)phthalimidine compound of formula (I): wherein R is a C1-25 hydrocarbyl; each occurrence of R2 and R3 is independently a halogen or a C1-25 hydrocarbyl; p is 0 to 4; and each q is independently 0 to 3; and wherein the purified 2-hydrocarbyl-3-(dihydroxyfluoresceinyl)phthalimidine compound of formula (I) has a purity of greater than 99.4%, as determined by high performance liquid chromatography.

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 thermoplastic composition comprising a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of formula (1a) wherein R is a C1-25 hydrocarbyl; each occurrence of R2 and R3 is independently a halogen or a C1-25 hydrocarbyl; p is 0 to 4; and each q is independently 0 to 3; and optionally a bisphenol A homopolycarbonate.

Abstract: A purified 2-hydrocarbyl-3-(dihydroxyfluoresceinyl)phthalimidine compound of formula (I): wherein R is a C1-25 hydrocarbyl; each occurrence of R2 and R3 is independently a halogen or a C1-25 hydrocarbyl; p is 0 to 4; and each q is independently 0 to 3; and wherein the purified 2-hydrocarbyl-3-(dihydroxyfluoresceinyl)phthalimidine compound of formula (I) has a purity of greater than 99.4%, as determined by high performance liquid chromatography.

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: The present invention particularly relates to lipase mediated synthesis of aminoacyl esters of monosaccarides from unprotected amino acids and monosaccharides in non-polar solvents using lipases.