摘要:
The present invention provides an aromatic polycarbonate resin having high fluidity and thin-wall moldability as well as excellent transparency, impact strength, and bending resistance; a polycarbonate resin composition containing it; and a method for producing a molded article by injection molding thereof. This object is achieved by an aromatic polycarbonate resin containing a carbonate structural unit (A) represented by Formula (1) and a carbonate structural unit (B) represented by Formula (2), which aromatic polycarbonate resin satisfies the following: (i) the flow value (Q value) as measured using a Koka flow tester according to Appendix C of JIS (1999) K7210 at 240°C at 160 kgf/cm 2 is not less than 6 (unit: 10 -2 cm 3 /sec.); and (ii) the glass transition temperature (Tg) is 90 to 145°C.
摘要:
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.
摘要:
The present invention relates to fiber-plastic composites consisting of (I) at least one fiber material and (II) a plastic matrix, wherein the composite is characterized in that the plastic matrix is based on a two-component matrix material (IIa), the two-component matrix material (IIa) (1) comprising a stem component comprising (A) at least one polycarbonate diol and (2) a hardener component comprising (C) at least one polyisocyanate-modified polyester having an isocyanate content of 4 to 15 %. The present invention also relates to a method for producing the fiber-plastic composites and to the use thereof.
摘要:
The invention relates to novel methods for producing isocyanate-free synthetic materials, such as plastics, polymers and/or modified polyurethanes, comprising melt extrusion processing of combinations of thermoplastic polyurethanes and nanoclays.
摘要:
The present invention relates to a copolymer resin composition formed by polymerizing an alkyl methacrylate-based monomer, a styrene-based monomer, a phenylmaleimide-based monomer and an alkyl acrylate-based monomer and to an optical film formed using the copolymer resin composition. The resin composition of the present invention may reduce odors which may be generated during the film extrusion and have a good thermal resistance and thermal stability.
摘要:
Provided herein are a method for preparing a resin composition for an expandable polypropylene carbonate and an expandable polypropylene carbonate prepared therefrom. More particularly, the present invention relates to a method for preparing a resin composition for an expandable polypropylene carbonate capable of using supercritical carbon dioxide as a foaming agent and preparing a foam having excellent moldability by an appropriate foaming method, and an expandable polypropylene carbonate prepared therefrom. The expandable polypropylene carbonate capable of having high magnification, excellent thermal stability, and dimensional stability may be prepared by using the resin composition according to the present invention.