公开(公告)号：US20190185596A1

公开(公告)日：2019-06-20

申请号：US16279677

申请日：2019-02-19

Applicant: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES

Inventor： Huayi LI ,  Qian LI ,  Tongbing SUN ,  Caizhen ZHU ,  Ruigang LIU ,  Ning ZHAO ,  Jian XU

IPC: C08F110/02 ,  B29B7/90 ,  B29C48/00 ,  B29C48/09 ,  B29C48/07 ,  B29C55/00 ,  B29C55/12 ,  D01D5/12 ,  D01D5/06 ,  D01F6/46 ,  C08J5/24 ,  C08K3/40 ,  C08J5/18 ,  C08K7/14 ,  C08F255/02

CPC classification number: C08F110/02 ,  B29B7/90 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/07 ,  B29C48/09 ,  B29C55/005 ,  B29C55/12 ,  B29K2023/0683 ,  B29K2309/08 ,  B29L2007/002 ,  B29L2023/22 ,  C08F4/658 ,  C08F255/02 ,  C08F2500/01 ,  C08F2500/24 ,  C08F2500/26 ,  C08J5/18 ,  C08J5/24 ,  C08J2323/06 ,  C08K3/40 ,  C08K7/14 ,  C08K2201/004 ,  D01D5/06 ,  D01D5/12 ,  D01F6/46

Abstract: 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.