Ultra-high molecular weight, ultra-fine particle size polyethylene, preparation method therefor and use thereof

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United States of America Patent

PATENT NO 11530281
APP PUB NO 20190185596A1
SERIAL NO

16279677

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An ultra-high molecular weight, ultra-fine particle size polyethylene has a viscosity average molecular weight (Mv) greater than 1×106. The polyethylene is spherical or are sphere-like particles having a mean particle size of 10-100 μm, having a standard deviation of 2-15 μm and a bulk density of 0.1-0.3 g/mL. Using the polyethylene as a basic polyethylene, a grafted polyethylene can be obtained by means of a solid-phase grafting method; and a glass fiber-reinforced polyethylene composition comprising the polyethylene and glass fibers, and a sheet or pipe prepared therefrom; a solubilized ultra-high molecular weight, ultra-fine particle size polyethylene; and a fiber and a film prepared from the solubilized ultra-high molecular weight, ultra-fine particle size polyethylene may also be obtained. The method has simple steps, is easy to control, has a relatively low cost and a high repeatability, and can realize industrialisation.

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Patent Owner(s)

Patent OwnerAddress
INSTITUTE OF CHEMISTRY CHINESE ACADEMY OF SCIENCESNORTH FIRST STREET 2 ZHONGGUANCUN HAIDIAN DISTRICT BEIJING 100190 100190

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Huayi Beijing, CN 5 1
Li, Qian Beijing, CN 425 2068
Liu, Ruigang Beijing, CN 2 1
Sun, Tongbing Beijing, CN 1 1
Xu, Jian Beijing, CN 831 9277
Zhao, Ning Beijing, CN 65 258
Zhu, Caizhen Beijing, CN 3 3

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