Abstract: A thermoplastic composition includes 40 to 70 wt % of a polyester; 5 to 50 wt % of a poly(carbonate-siloxane), a poly(carbonate-siloxane-arylate), or a combination thereof; and 0.1 to 8 wt % of an additive comprising a processing aid, a heat stabilizer, an antioxidant, an ultra violet light absorber, or a combination thereof. An ASTM tensile bar comprising the composition has a tensile strength retention of at least 90% and a tensile elongation at break retention of at least 80% after exposure of the bar for 7 days to SANI-CLOTH AF3 at a temperature of 23° C. under 1% strain compared to a non-exposed reference tested at the same temperature. An article comprising the thermoplastic composition is also described.

Abstract: In an embodiment, a method of producing a bisphenol comprises reacting a phenolic compound with a reactant comprising one or both of an aldehyde and a ketone in the presence of a catalyst system and methanol to produce the bisphenol; wherein the methanol is present in an amount of 250 to 5,000 ppm based on the total weight of the reactant; wherein the catalyst system comprises an ion-exchange resin comprising a plurality of sulfonic acid sites; and 5 to 35 mol % of an attached promoter molecule based on the total moles of the sulfonic acid sites in the catalyst system; and wherein the attached promoter molecule comprises at least two thiol groups per attached promoter molecule.

Abstract: In an embodiment, a method of producing a bisphenol comprises reacting a phenolic compound with a reactant comprising one or both of an aldehyde and a ketone in the presence of a catalyst system and methanol to produce the bisphenol; wherein the methanol is present in an amount of 250 to 5,000 ppm based on the total weight of the reactant; wherein the catalyst system comprises an ion-exchange resin comprising a plurality of sulfonic acid sites; and 5 to 35 mol % of an attached promoter molecule based on the total moles of the sulfonic acid sites in the catalyst system; and wherein the attached promoter molecule comprises at least two thiol groups per attached promoter molecule.

Abstract: Disclosed herein are methods and compositions of thermoplastic compositions with antimicrobial properties. The resulting compositions, comprising one or more thermoplastic polymers, a zinc additive component, and an acid stabilizer component, can be used in the manufacture of articles requiring antimicrobial protection while still retaining the advantageous physical properties of thermoplastic compositions. 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.