摘要:
A polycarbonate composition comprising: a high heat copolycarbonate comprising high heat carbonate units, wherein a homopolycarbonate of the high heat carbonate units has a glass transition temperature (Tg) of 155-250 °C; and optionally low heat carbonate units, wherein a homopolycarbonate of the low heat carbonate units has a Tg of up to 150 °C, each as determined by differential scanning calorimetry as per ASTM D3418 with heating rate of 20 °C/min; greater than 200-5000 ppm of an aryl benzofuranone stabilizer, based on the total parts by weight of the composition, wherein a 3.2 millimeter-thick molded sample aged for 250 hours at 150 °C has a change in a yellowness index value of less than 6.0, or less than 5.0, or less than 3.0 as compared with an initial yellowness index value of the molded sample, as measured in accordance with ASTM D1925.
摘要:
La présente invention concerne un électrolyte polymère solide sous forme de matériau composite organique-organique, destiné à être utilisée dans une batterie lithiumpolymère. L'invention se rapporte également à un procédé de fabrication d'un tel électrolyte. Cet électrolyte est notamment destiné à la réalisation d'une batterie lithiumpolymère, d'une batterie dite «Tout Solide », notamment pour ce qui concerne le séparateur conducteur ionique. L'invention se rapporte donc en outre à un séparateur de batterie comprenant un tel électrolyte polymère, à ses procédés de fabrication et à la batterie incorporant cet électrolyte.
摘要:
Provided herein are methods of producing polymers from furan and optionally diol compounds, using an organocatalyst. A polymer composition comprising a polymer prepared by the method is contemplated. Provided herein are also polymer compositions, such as poly(alkylene-2,5-furandicarboxylate). In some embodiments, polymer compositions have any one of the characteristics discussed herein, or any combinations thereof.
摘要:
Die vorliegende Erfindung betrifft neue Mono-und Diester des 2,5-Di(hydroxymethyl)-tetrahydrofurans, Verfahren zu deren Herstellung durch Veresterung in Gegenwart tertiärer Amine oder in Gegenwart enzymatischer Veresterungskatalysatorenund die Verwendung dieser Mono-und Diester als grenzflächenaktive Verbindungen, Rheologiemodifizierer und Emollientien.Die Erfindung betrifft weiterhin kosmetische und pharmazeutische Mittel sowie Wasch-, Reinigungs-und Geschirrspülmittel, die diese Mono-und Diester des 2,5-Di(hydroxymethyl)tetrahydrofuransenthalten.
摘要:
The present invention provides methods of synthesis of di-, tri-, and poly- ester derivatives of 5- methyl-2-furoic acid; di-, tri-, and poly- amide derivatives of 5-methyl-2-furoic acid; and di-, tri-, and poly- thioester derivatives of 5-methyl-2-furoic acid from 5-(halomethyl)-2-furaldehydes. These molecules are useful as plasticizers, solvents, coalescers, an ingredient in plastisol compositions, diluents, an ingredient in adhesive compositions, compatibilizer or compounding agent, or lubricant, as well as polymer compositions containing such ester compositions.
摘要:
The present invention discloses novel bisphenol compounds of formula (I) which are useful for preparation of polymers with pendant furyl groups and a process for synthesis of the bisphenols and polymers therefrom.
摘要:
The disclosure provides paint compositions that comprise isoxazolidine derivatives that are low in volatile organic compounds (VOCs). These compositions have extended open time, and are suitable for both water-based and organic solvent-based formulations.