China Petroleum Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

Fushun Research Institute of Petroleum and Petrochemicals, Sinopec Corp.

China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry

Hui Quan

Kai Xu

Qi Zhang

Peng Guo

Shijun Zhang

Mingfu Lyu

Yaohui Xu

Wenbo Song

Fuyong Bi

Qiang Li

Jinliang Qiao

Meng Xu

Xiangchen Fang

Liangshi Wang

Hua Yin

Jingbo Shao

Meifang Guo

Luqiang Yu

Hongwei Shi

Liying Zhang

Dali Gao

Yiqing Bai

Liqiu Chu

Honghong Huang

Hongfei Fan

Yun Lyu

Jianye Liu

Yihui Xu

Hao Zou

Mu Dong

Baige Chou

Yujing Tang

Qingquan Yang

Jianjun Yin

Ruxian Li

Chunlei Yao

Guoquan Sun

Yueming Ren

A method for preparing hexadecahydropyrene includes the step of carrying out the hydrogenation reaction to hydrocarbon oil containing pyrene compounds in the presence of a hydrogenation catalyst. The pyrene compounds are selected from at least one of pyrene and unsaturated hydrogenation products thereof. The hydrogenation catalyst contains a carrier and an active metal component loaded on the carrier. The active metal component is Pt and/or Pd and the carrier contains a small crystal size Y zeolite, alumina and amorphous silica-alumina. The small crystal size Y zeolite has an average grain diameter of 200-700 nm, a molar ratio of SiOto AlOof 40-120, a relative crystallinity of &#x2265;95%, and a specific surface area of 900-1,200 m/g. The pore volume of secondary pores in 1.7-10 nm diameter is more than 50% of the total pore volume.

Method for preparing hexadecahydropyrene

The invention relates to a flame-retardant thermoplastic material, comprising thermoplastic base resin, a flame retardant, and an optional antioxidant, wherein the flame retardant comprises a complex of phosphine oxide and a transition metal salt. The invention also relates to flame-retardant thermoplastic expanded beads. A foam molding prepared from the flame-retardant thermoplastic expanded beads has good flame-retardant and antistatic properties, has excellent mechanical properties and is widely used.

Flame-retardant thermoplastic material and expanded beads thereof

The present invention refers to a flame retardant comprising a complex formed by phosphine oxide and transition metal salt, wherein has good flame retardant property. The present invention also refers to a composite flame retardant and flame retardant antistatic composition. The present invention also further refers to a flame resistant method, which adds the abovementioned flame retardant, composite flame retardant or flame retardant antistatic composition into the material, so that said material has flame retardance or flame retardance and antistatic, and has excellent mechanical properties.

Flame retardant, composite flame retardant, flame retardant antistatic composition and flame resistant method

A polyethylene composition comprising an ethylene/&#x3b1;-olefin copolymerized linear low density polyethylene, wherein the polyethylene composition has a Mw of from 100,000 g/mol to 200,000 g/mol, a Mw/Mn of from 4.0 to 9.0, a Mz/Mw of from 4.0 to 7.0, and a Mz+1/Mw of from 4.5 to 13.5, is provided. A film formed of the polyethylene composition is also provided.

Polyethylene compositions and films formed therefrom

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Beijing, China

Hui Quan