The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 1980
Filed:
Jul. 28, 1978
Tsukasa Takahashi, Niihama, JP;
Takeshi Sekihara, Niihama, JP;
Tomoyuki Emura, Niihama, JP;
Masayoshi Miki, Niihama, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile