Abstract:
To provide a polyester resin particularly useful in application to optical films, etc. A polyester resin which is an alicyclic polyester comprising dicarboxylic acid units and diol units, characterized by the following (1) to (4):
(1) the dicarboxylic acid units are composed mainly of 1,4-cyclohexanedicarboxylic acid units, (2) the diol units are composed mainly of 1,4-cyclohexanedimethanol units, (3) the ratio of alkyl ester terminals to all terminals of the polyester is at most 5 mol%, and (4) the light transmittance of a molded plate of the resin having a thickness of 2 mm is at least 87%.
Abstract:
Die Erfindung betrifft Klebstoffzusammensetzung, beinhaltend (a) ein elastomeres Blockcopolymer mit einem Diblockanteil von höher als 40%, vorzugsweise von höher als 55%, besonders bevorzugt von höher als 70%, (b) einen sulfonierten, insbesondere verzweigten Copolyester sowie (c) ggf. weitere Zusatzstoffe wie Klebrigmacher und/oder Weichmacher und/oder Stabilisatoren. Die erfindungsgemässen Klebstoffzusammensetzungen haben sich insbesondere aufgrund einer erhöhten Nass-Schälfestigkeit als besonders vorteilhaft erwiesen.
Abstract:
A hot melt adhesive (HMA) composition includes (A) from 1-60 wt % of a block composite compatibilizer comprising (i) a hard polymer that includes propylene, (ii) a soft polymer that includes ethylene, and (iii) a block copolymer having a soft block and a hard block, the hard block of the block copolymer having the same composition as the hard polymer of the block composite compatibilizer and the soft block of the block copolymer having the same composition as the soft polymer of the block composite compatibilizer; (B) from 1-70 wt % of a tackifier; (C) from 1-40 wt % of at least one selected from the group of a wax and an oil; and (D) Optionally, from greater than zero to 97 wt % of a polymer component that includes an ethylene-based polymer and/or a propylene-based polymer.
Abstract:
The powder molded product of the present invention is produced through molding of a slurry containing a powdery molding raw material, a dispersion medium for dispersing the molding raw material, a dispersant for uniformly dispersing the molding raw material in the dispersion medium, a binder precursor for producing an organic binder through a chemical reaction, a reaction promoter for promoting the chemical reaction, and a pseudo-plasticity-imparting agent for imparting pseudo-plasticity to the slurry. The production method of the present invention includes a slurry preparation step; a molding step of molding the prepared slurry into a primary powder molded product having a specific shape; and a drying-solidification step of solidifying the slurry by promoting the aforementioned chemical reaction in the primary powder molded product, and removing, through evaporation, the dispersion medium from the primary powder molded product.
Abstract:
The mechanical properties of a polymer protective coating formed from an aqueous dispersion of a polymer having a low glass transition temperature are significantly improved by including in the dispersion solvent softened polymer nanoparticles made from a polymer having a high glass transition temperature.
Abstract:
A polyester resin especially suitable for use in optical films, etc. In particular, a resin of alicyclic polyester comprising dicarboxylic acid units and diol units, characterized by satisfying the following requirements: (1) the dicarboxylic acid units are composed mainly of 1,4-cyclohexanedicarboxylic acid units; (2) the diol units are composed mainly of 1,4-cyclohexanedimethanol units; (3) the ratio of alkyl ester terminals to all terminals of the polyester is 5 mol% or less; and (4) the light transmittance of a 2 mm thick plate obtained by molding the polyester resin is 87% or higher.