Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SILICONE MODIFIED POLYURETHANE ELASTOMER DIAPHRAGM AND SPEAKER MONOMER
Document Type and Number:
WIPO Patent Application WO/2019/210645
Kind Code:
A1
Abstract:
Disclosed by the present invention are a silicone modified polyurethane elastomer diaphragm and speaker monomer. The diaphragm comprises: adding isocyanate, silicone carrying a reactive hydrogen functional group, and a chain extender into a solvent and carrying out a reaction, wherein the reactive hydrogen functional group of the silicone and the isocyanate groups of the isocyanate react so as to produce a polyurethane prepolymer, the chain extender and the functional group on the polyurethane prepolymer undergo a reaction, and after curing, the diaphragm is formed. The present diaphragm has the features of having good weather resistance and not easily sticking to a die head.

Inventors:
WANG, Ting (No. 268 Dongfang Road, Hi-Tech Industry District Weifang, Shandong 1, 261031, CN)
WU, Zengxun (No. 268 Dongfang Road, Hi-Tech Industry District Weifang, Shandong 1, 261031, CN)
Application Number:
CN2018/110121
Publication Date:
November 07, 2019
Filing Date:
October 12, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
GOERTEK INC. (No. 268 Dongfang Road, Hi-Tech Industry District Weifang, Shandong 1, 261031, CN)
International Classes:
H04R7/00; C08G18/83
Foreign References:
CN206136297U2017-04-26
US20090041291A12009-02-12
CN106832184A2017-06-13
CN103421194A2013-12-04
US5441308A1995-08-15
Other References:
XU, JINPENG ET AL.: "Organosilicon Modified Polyurethane Elastomers", RESEARCH AND DEVELOPMENT, 25 October 2016 (2016-10-25)
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (Room 1201, Kuntai Building#10 Chaoyangmenwai Str. Chaoyang District, Beijing 0, 100020, CN)
Download PDF: