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.:

US 9346901 B1

PDF
Full Text
Expired
Date of Patent:
May. 24, 2016

Filed:

Nov. 30, 2012
Applicant:

Tokuyama Sekisui Co., Ltd., Osaka, JP;

Inventor:

Masatoshi Harada, Yamaguchi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/22 (2006.01); C08F 14/06 (2006.01); C08F 114/06 (2006.01);
U.S. Cl.
CPC ...
C08F 114/06 (2013.01); C08F 8/22 (2013.01); C08F 14/06 (2013.01);
Abstract

Chlorinated vinyl chloride resin may be produced through a heat chlorination reaction of an aqueous suspension of vinyl chloride resin in a hermetically sealable reaction vessel, the method including carrying out a first heat chlorination reaction while raising the temperature of an aqueous suspension of a vinyl chloride resin powder to a predetermined temperature within the range of 85° C. to 95° C., and subsequently carrying out a second heat chlorination reaction at the predetermined temperature.


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Harada, Masatoshi. (2016). Method for producing chlorinated vinyl chloride resin (U.S. Patent No. 9346901). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9346901

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