Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in reactor of specified material – or in reactor...
Patent
1978-07-28
1980-03-11
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in reactor of specified material, or in reactor...
422131, 526344, 5263441, B01J 800, C08F 216, C08F 1406
Patent
active
041929349
ABSTRACT:
Equipments for polymerization of vinyl chloride monomers characterized in that the inside wall of the polymerization vessel and/or the surface of attachments to the vessel which are brought into contact with said monomers are wholly or partially made of mirror-polished ferritic stainless steel containing 15 to 40% by weight of chromium, 0.5 to 5% by weight of molybdenum, not more than 0.5% by weight of nickel, not more than 0.05% by weight of carbon and not more than 0.05% by weight of nitrogen, or mirror-polished duplex-phase stainless steel comprising a ferrite phase and an austenitic phase.
REFERENCES:
patent: 2975162 (1961-03-01), Iloff
patent: 3966695 (1976-06-01), Flatau et al.
patent: 4049895 (1977-09-01), McOnie et al.
Emura Tomoyuki
Miki Masayoshi
Sekihara Takeshi
Takahashi Tsukasa
Kight III John
Sumitomo Chemical Company Limited
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