Di(amido(alkyl)phenol) compounds and upgraded molecular weight polymers made from such compounds have particular utility in coating compositions, especially for use on food and beverage contact substrates that are formed into or will be formed into containers or container components.

The present invention aims at providing a polycarbonate resin composition having excellent transparency and possessing high levels of biogenic substance content rate, heat resistance, wet heat resistance and impact resistance in a balanced manner, a production method thereof, and a molded body of the polycarbonate resin composition. The present invention is a polycarbonate resin composition including a polycarbonate resin (A) containing a constitutional unit derived from a compound represented by the following formula (1), and an aromatic polycarbonate resin (B), a production method thereof, and a molded body of the resin composition: ##STR00001##

The present invention aims at providing a polycarbonate resin composition having excellent transparency and possessing high levels of biogenic substance content rate, heat resistance, wet heat resistance and impact resistance in a balanced manner, a production method thereof, and a molded body of the polycarbonate resin composition. The present invention is a polycarbonate resin composition including a polycarbonate resin (A) containing a constitutional unit derived from a compound represented by the following formula (1), and an aromatic polycarbonate resin (B), a production method thereof, and a molded body of the resin composition: ##STR00001##

A foamable poly carbonate composition comprising 5 to 95 wt % of a poly(siloxane) block copolymer comprising a poly(carbonate-siloxane) comprising 50 to 99 wt % of bisphenol A carbonate units and 1 to 50 wt % of dimethylsiloxane units, each based on the weight of the poly(carbonate-siloxane), a poly(ester-carbonate-siloxane) comprising bisphenol A carbonate units, isophthalate-terephthalate-bisphenol A ester units, and 5 to 200 dimethyl siloxane units, or a combination thereof; 5 to 95 wt % of an auxiliary component comprising a poly(alkylene ester), a poly(ester-carbonate), or a combination thereof, and optionally, a homopolycarbonate; optionally, up to 10 wt % of an additive composition, wherein the composition has a glass transition temperature of 140 C. and below measured using differential scanning calorimetry, and wherein a foamed sample of the composition has an average cell size of 10 nanometers to 20 micrometers.

The present application relates to a polycarbonate including a unit represented by Chemical Formula 1a; and a unit represented by Chemical Formula 1b, a composition including the same and a molded article prepared from the composition.

Techniques regarding star polymers with enhanced antimicrobial functionality are provided. For example, a polymer is provided that can comprise a core that can have a singlet oxygen generator and that can generate a singlet oxygen species upon irradiation with light. The polymer can also comprise a plurality of polycarbonate arms covalently bonded to the core. The plurality of polycarbonate arms can be degradable and can comprise a cation. Further, the plurality of polycarbonate arms can have antimicrobial functionality.

Techniques regarding chemical compounds comprising perfluoroaryl groups that can facilitate post-synthesis functionalization are provided. For example, one or more embodiments described herein can comprise a chemical compound. The chemical compound can comprise a molecular backbone. The chemical compound can also comprise a pendent functional group bonded to the molecular backbone. The pendent functional group can comprise a perfluoroaryl group and a methylene group.

A process, apparatus, and material for generating polymers are disclosed. Generating the polymers comprises reacting carbon dioxide (CO.sub.2) with a cyclopropenimine (CPI). Generating the polymers further comprises reacting monomers with a product of the reaction between the CPI and the CO.sub.2.

The present application relates to a polycarbonate including a unit represented by Chemical Formula 1, a composition including the same and a molded article prepared from the composition.

A polycarbonate copolymer which has siloxane constituent units represented by any of formulae (1-1) to (1-4) and prescribed polycarbonate constituent units.

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