The resin composition for an optical material according to the present invention has features that it can implement a low retardation value during the preparation of an optical film, by using a polycarbonate composition satisfying a specific condition as a retardation-adjusting agent while using polymethyl methacrylate not containing a monomer having a cyclic structure at the main chain of the polymer.

The present invention provides a polyolefin-based resin composition that has improved resilience while maintaining mechanical strength and stretching properties, as well as a molded article and a polyolefin-based resin film formed from this composition.

The polyolefin-based resin composition comprises a polyolefin-based resin, a polyalkylene carbonate resin, and an ionic liquid. The polyolefin-based resin film of the present invention is formed by molding the polyolefin-based resin composition and is stretched at least in a monoaxial direction.

Polyurethane encapsulating compounds for the embedding of hollow fibers of filter elements are provided. These are obtainable by mixing a polyol component (A) and an isocyanate component (B) to give a reaction mixture and reacting the mixture to completion to give the polyurethane encapsulating compound, wherein the polyol component (A) comprises (a1) at least one fatty-acid-based polyol, (a2) at least one amine compound having at least one tertiary nitrogen atom and at least one isocyanate-reactive hydrogen atom and (a3) at least one metal compound that functions as a polyurethane catalyst, wherein the polyurethane catalyst (a3) does not comprise any tin, lead and/or mercury and the isocyanate component (B) comprises at least one aromatic isocyanate having at least two isocyanate groups. Further provided is a method for producing filter elements using the polyurethane encapsulating compounds and the use of the polyurethane encapsulating compounds for the embedding of hollow fibers.

A method for forming a polymer/graphene nanocomposite includes providing a polymer blend comprising a polyetherimide and a polycarbonate; and irradiating the polymer blend with radiation comprising a wavelength in a range of 8.3 to 11 m to provide the polymer/graphene nanocomposite. The polymer blend has a melt volume rate of 1 to 100 cm.sup.3/10 min, preferably 5 to 75 cm.sup.3/10 min, more preferably 10 to 50 cm.sup.3/10 min, as determined at 360 C./5.0 kg in accordance with ISO 1133.

A process of manufacturing a free-flowing solid encapsulated drag reducing additive comprises: forming a solid drag reducing additive from one or more C.sub.5-20 olefin monomers; dispersing the solid drag reducing additive in a liquid medium to form a dispersion, the liquid medium comprising an encapsulant and a non-solvent; grinding the solid drag reducing additive in the liquid medium under non-cryogenic grinding conditions to form an encapsulated drag reducing additive in a particulate form; and removing the non-solvent by a drying technique including spray drying, flash drying, or rotating disc drying to form the free-flowing solid encapsulated drag reducing additive.

A subject-matter of the present invention are new complexes comprising cyclic alkylene carbonates and polyamides, processes for their preparation and uses. Additionally, a subject-matter of the invention is the use of alkylene carbonates for recycling, solubilization, purification, and/or powdering of polyamide-based materials.

A method for producing polymeric microparticle compositions using the steps of: 1) melt processing an immiscible polymeric blend comprising an immiscible polymer matrix and a soluble polymer matrix, 2) dissolving the soluble polymer matrix of the immiscible polymeric blend using a solvent to yield a polymeric microparticle composition, and 3) isolating the polymeric microparticle composition.

A composition includes (a) a polypropylene or a polypropylene copolymer, (b) a polyol, and (c) optionally an organic peroxide. The polyol (b) is in the range of from about 0.01 wt. % to about 25 wt. % of the total weight of (a), (b) and (c). The method of making such a polymer composition, the method of using such a polymer composition, and a sheet or a fabricated article comprising such a polypropylene composition, are also provided.

A polymer blend containing polycarbonate and polysulfone in accordance with an embodiment of the present invention is provided, including a polysulfone resin, a polycarbonate resin, and a solvent for dissolving the polysulfone resin and the polycarbonate resin. The blending ratio of the polycarbonate resin to the polysulfone resin in the polymer blend ranges from 1:3 to 3:1. By adjusting the blending ratios of the polycarbonate resin to the polysulfone resin, the group of the polycarbonate resin and the group of the polysulfone resin are stably compatible with each other, and the glass transition temperature of the polymer blend is also remarkably increased, such that the a high-temperature resistance and improved mechanical properties are achieved.

The invention relates to composite materials (organosheets) containing a thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, a sheet material consisting of continuous reinforcing fibers in a matrix composition comprising the molding compound is used, the thermoplastic molding compound containing at least one polyolefin, and optionally at least one further, polarity-functionalized polymer. The invention also relates to a process for produci2023ng the claimed composite material and to uses thereof.