Abstract:
본 발명의 폴리카보네이트 수지 조성물은 폴리카보네이트 수지(A) 30 내지 50 중량%, 변성 아크릴계 공중합체(B) 20 내지 40 중량%, 고무변성 방향족 비닐-시안화 비닐 그라프트 공중합체(C) 5 내지 10 중량%, 및 폴리부틸렌테레프탈레이트 수지(D) 10 내지 30 중량%로 이루어지는 베이스 수지 조성물 100 중량부에 대하여, 실록산-폴리에스테르 공중합체(E) 1 내지 8 중량부를 더 포함하는 폴리카보네이트 수지 조성물에 관한 것이다. 본 발명의 폴리카보네이트 수지 조성물은 충격강도, 내열성, 내스크래치성, 및 흠 저항성이 우수하다.
Abstract:
본 발명은 (A) 폴리카보네이트 수지 60 ~ 80 중량%; 및 (B) 폴리카보네이트-폴리실록산 공중합체 수지 20 ~ 40 중량%로 이루어진 열가소성 수지 100 중량부에 대해, (C) 펄 메탈 입자 1 ~ 4 중량부; 및 (D) 착색료(colorant) 0.1 ~ 10 중량부를 포함하는 폴리카보네이트 수지 조성물에 관한 것이다. 본 발명은 도장 처리 없이도 본 발명에 따른 폴리카보네이트 수지 조성물을 이용하여 자동차 내장재를 제조 시에 화이트 펄의 우수한 도장감을 갖으면서 물성이 우수한 자동차 내장재를 제공할 수 있다.
Abstract:
4.4V급의 고전압 적용시 우수한 사이클 특성을 가질 수 있는 리튬 2차전지용 비수성 전해액이 제공된다. 본 발명의 리튬 2차전지용 비수성 전해액은 유기용매, 리튬염, 및 하기의 화학식 1 내지 화학식 2에 나타낸 비스 트리플루오로알킬 벤젠 중 하나 이상을 포함한다.
Abstract:
A non-aqueous electrolyte for a lithium secondary battery is provided to impart excellent cycle characteristics to a battery having a cut-off voltage of 4.4V while maintaining the quality of the battery. A non-aqueous electrolyte for a lithium secondary battery comprises an organic solvent, a lithium salt, and at least one trifluoroalkyl benzene represented by the following formulae 1 and 2. The bistrifluoroalkyl benzene is used in an amount of 0.01-50 parts by weight based on 100 parts by weight of the organic solvent. The organic solvent includes a mixed solvent containing at least one organic cyclic carbonate solvent and at least one organic linear carbonate solvent in a ratio of 1:4-2:2.
Abstract:
Provided are a nonaqueous electrolyte solution for a lithium secondary battery to improve charge/discharge characteristics and cycle characteristics, and a lithium secondary battery containing the nonaqueous electrolyte solution. A nonaqueous electrolyte solution comprises 0.01-50 parts by weight of at least one lactone-based compound selected from alpha-methyl GBL represented by a formula 1, gamma-caprolactone represented by a formula 2 and gamma-valerolactone represented by a formula 3; a lithium salt; and 100 parts by weight of an organic solvent containing an aromatic hydrocarbon compound represented by a formula 4, wherein R is a halogen atom or a C1-C10 alkyl group; and n is an integer of 1-5.
Abstract:
The present invention relates to a transparent thermoplastic resin composition comprising 5-40 wt% of a core-shell structured impact modifier (A) and 60-95 wt% of acrylic resin (B), wherein the impact modifier (A) consists of a rubber core which is composed of a copolymer of an acrylic monomer and a diene-based monomer and a shell which is composed of an acrylic compound grafted on the rubber core; and to a molded product using the transparent thermoplastic resin composition.
Abstract:
PURPOSE: A polycarbonate resin composition has excellent colorability, shock resistance, and scratch resistance. CONSTITUTION: A polycarbonate resin composition comprises a polycarbonate resin, a denatured acrylate copolymer, a rubber-modified aromatic vinyl-acrulonitrile graft copolymer, a PBT(PolyButylene Terephthalate) resin, and a siloxane-polyester copolymer. The denatured acrylate copolymer comprises 'a unit derived from acrylate or methacrylate including an alicyclic structure or an aromatic hydrocarbon group'. An impact strength of the polycarbonate resin composition measured by notch izod based on ASTM D256 is 10-65 kgf·cm/cm.
Abstract:
A nonaqueous electrolyte solution for a lithium secondary battery, and a lithium secondary battery using the nonaqueous electrolyte solution are provided to improve discharge capacity during charge/discharge, low temperature characteristics and lifetime at low temperature and high temperature and to inhibit the generation of gas due to side reaction, thereby enhancing stability and safety. A nonaqueous electrolyte solution comprises 100 parts by weight of an organic solvent; a lithium salt; 0.01-5 parts by weight of the lithium trifluoromethanesulfonimide represented by the formula 1; and fluoroethylene carbonate and/or vinylene carbonate. The content of fluoroethylene carbonate and vinylene carbonate is 0.01-5 parts by weight, respectively based on 100 parts by weight of a mixture solution comprising the organic solvent and the lithium salt. Preferably the organic solvent comprises at least one cyclic carbonate organic solvent selected from ethylene carbonate, propylene carbonate and butylene carbonate, and at least one linear carbonate organic solvent selected from dimethyl carbonate, diethyl carbonate, dipropyl carbonate, ethylmethyl carbonate, methylpropyl carbonate and ethylpropyl carbonate, in a ratio of 1:4 to 2:2.