Organic compounds -- part of the class 532-570 series – Organic compounds – Thiocarboxylic acids or salts thereof
Patent
1991-11-05
1994-12-06
Cintins, Marianne M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Thiocarboxylic acids or salts thereof
567 27, 567 28, 564 76, 203 8, 203 9, 252380, 25238953, 25240053, C07C 5704, B01D 334
Patent
active
053712803
ABSTRACT:
This invention is directed to a polymerization inhibitor and a polymerization inhibiting method which enables the continuous operation of a device for producing vinyl compounds over a long period of time and virtually eliminates corrosion. Further, the polymerization inhibitors according to the present invention are superior in polymerization inhibition when transferring and storing the vinyl compound products and in other cases. The polymerization inhibitor according to the present invention contains manganese dithiocarbamate or a thiuram compound as an effective component. The polymerization inhibiting method of this invention comprises individual or joint use of said inhibitors, or joint use of a copper salt, another manganese salt, or quinones in addition to said inhibitors. Further, the method may comprise jointly using copper dithiocarbamates in a manganese salt as polymerization inhibitors, or jointly using quinones in addition to the salts.
REFERENCES:
patent: 2829152 (1953-04-01), Garret et al.
patent: 2977345 (1961-03-01), Fischer et al.
patent: 3248400 (1966-04-01), Flies et al.
patent: 3322802 (1967-05-01), Brooks et al.
patent: 3390198 (1968-06-01), Leston et al.
patent: 3879343 (1975-04-01), DeBrunner et al.
patent: 4061595 (1977-12-01), Watson
patent: 4348515 (1982-09-01), Morgan
patent: 4621310 (1977-05-01), Shimizu et al.
patent: 4663480 (1987-05-01), Inskip et al.
Chemical Abstracts, vol. 90, No. 10, issued 1978 (Columbus, Ohio, USA) Standner, E. et al., "Effect of Organic Sulfur Compounds on the Polymerization of Vinyl Monomers", (Abstract enclosed), Abstract No. 72531e, Zb. Chemickotechnol. Fak, vol. Date 1975-1976 177-87 (Slo.).
Akazawa Yohji
Baba Masao
Haramaki Hidefumi
Sakamoto Kazuhiko
Ueoka Masatoshi
Cintins Marianne M.
Millan Keith Ma
Nippon Shokubai Co. , Ltd.
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