Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1982-06-22
1984-06-19
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C08F 218
Patent
active
044554133
ABSTRACT:
A method for production of vinyl chloride resin is provided, in which vinyl chloride or a monomeric mixture containing vinyl chloride as a major ingredient is polymerized, while controlling the operation of a reflux condenser provided at a polymerization vessel by supplying hot water or steam and then cooling water to the side of cooling water of the condenser, whereby bubbling is suppressed. The method provides outstanding advantages, such as, a high quality product improved with respect to fish eyes, high productivity, a shortened polymerization time, and a savings in steam for heating.
REFERENCES:
patent: 3627744 (1971-12-01), Hopkins et al.
patent: 3926931 (1975-12-01), Koyanagi et al.
patent: 3957744 (1976-05-01), Deuschel et al.
Kobayashi Teiji
Nojima Yasuhiro
Shibahara Hiroshi
Tomishima Yoshio
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
Michl Paul R.
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