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Patent Searching and Data


Title:
ANTIBACTERIAL POLYCARBONATE COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/103658
Kind Code:
A1
Abstract:
Disclosed is an antibacterial polycarbonate composite material, comprising the following components in terms of parts by weight: polycarbonate 100 parts; a nano metal oxide 0.01-5 parts; and a silicon-containing high molecular weight polymer 0.01-5 parts; and the content of silver ions being 100-1200 ppm based on the total weight of the antibacterial polycarbonate composite material. The present invention, by means of the dispersion and migration effects synergistically provided by the nano metal oxide and the silicon-containing high molecular weight polymer, allows the concentration of silver ions in the material to gradually increase from the interior to the surface, and, as the surface of the material wears, with the silver ions inside the material migrating at an even rate along with the silicon-containing polymer to the surface so as to allow the material to maintain great and sustained antibacterial effects, reduces the amount of silver ions added, and has the advantages of great appearance, great color stability, and great antibacterial performance.

Inventors:
DING CHAO (CN)
LI MINGKUN (CN)
CEN YIN (CN)
PENG MINLE (CN)
AI JUNWEI (CN)
WU JUN (CN)
Application Number:
PCT/CN2019/114374
Publication Date:
May 28, 2020
Filing Date:
October 30, 2019
Export Citation:
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Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
International Classes:
C08L69/00; C08K3/015; C08K3/22; C08K5/00; C08K13/02; C08L83/04
Domestic Patent References:
WO2017109114A12017-06-29
WO2008007908A12008-01-17
Foreign References:
CN109553949A2019-04-02
CN109486153A2019-03-19
CN109749391A2019-05-14
CN105524444A2016-04-27
CN106987082A2017-07-28
CN101405132A2009-04-08
CN107353615A2017-11-17
CN201610555237A2016-07-15
Other References:
See also references of EP 3770218A4
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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