China Petroleum Chemical Corporation

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

Yujing Tang

Meifang Guo

Liying Zhang

Hao Zhang

Kai Xu

Qiang Li

Jinliang Qiao

Peng Guo

Meng Xu

Shijun Zhang

Wenbo Song

Liangshi Wang

Hua Yin

Jingbo Shao

Luqiang Yu

Hongwei Shi

Yiqing Bai

Dali Gao

Liqiu Chu

Huijie Hu

Mingfu Lyu

Mu Dong

Hui Quan

Yihui Xu

Hao Zou

Yaohui Xu

Honghong Huang

Yun Lyu

Jianye Liu

Qingquan Yang

Jianjun Yin

Liping Hou

Wenjun Wei

Ruxian Li

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

The present invention relates to a propylene-butene-1 random copolymer which has a butene-1 content of 1-6 mol % and a relative dispersity of butene-1, as determined according to NMR method, of greater than 98.5%. The propylene-butene-1 random copolymer of the present invention has a high relative dispersity of butene-1, as well as better transparency and heat resistance, so that it is more suitable for packaging food that may be edible after heating. Moreover, the copolymer has a lower xylene solubles content at room temperature. In addition, the present invention further relates to a method for preparing the copolymer and to a composition and an article comprising the copolymer.

Propylene random copolymer, method for its preparation, and compositions and articles containing the same

Growing community of inventors

Beijing, China

Yujing Tang