Title:
POLYMERIZATION INHIBITOR COMPOSITIONS AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/022550
Kind Code:
A1
Abstract:
The polymerization-inhibiting composition comprising or consisting of pyrocatechol (PC) and hydroquinone (HQ), and optionally phenothiazine (PTZ), wherein the weight ratio of PC: HQ is in the range of (0.3-3):1, preferably (0.4-1.6):1. The use of the composition is to inhibit polymerization of ethylenically unsaturated monomer (s) comprising at least one heteroatom.
More Like This:
| WO/2016/123346 | PRODUCING C5 OLEFINS FROM STEAM CRACKER C5 FEEDS |
| WO/2000/056684 | FORMATION, PROCESSING, TRANSPORTATION AND STORAGE OF HYDRATES |
Inventors:
JIANG JING (CN)
WANG DING (CN)
VANZIN DAVID (US)
WANG DING (CN)
VANZIN DAVID (US)
Application Number:
PCT/CN2019/099785
Publication Date:
February 11, 2021
Filing Date:
August 08, 2019
Export Citation:
Assignee:
RHODIA OPERATIONS (FR)
International Classes:
C07C7/20
Foreign References:
| CN108026000A | 2018-05-11 | |||
| US20130274519A1 | 2013-10-17 | |||
| CN1111605A | 1995-11-15 | |||
| CN101717647A | 2010-06-02 | |||
| CN103889939A | 2014-06-25 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
Download PDF: