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 8883511 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2014

Filed:

Mar. 02, 2012
Applicants:

Kiyoshi Sunada, Itoigawa, JP;

Takeo Mori, Itoigawa, JP;

Inventors:

Kiyoshi Sunada, Itoigawa, JP;

Takeo Mori, Itoigawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 31/02 (2006.01); G01N 31/00 (2006.01); C08C 1/02 (2006.01); C08K 3/00 (2006.01); C08L 11/02 (2006.01); C08J 3/05 (2006.01); C08C 1/14 (2006.01); C08K 3/28 (2006.01);
U.S. Cl.
CPC ...
G01N 31/02 (2013.01); C08K 3/0083 (2013.01); C08J 2311/02 (2013.01); C08L 11/02 (2013.01); C08J 3/05 (2013.01); C08K 2003/287 (2013.01); C08C 1/14 (2013.01);
Abstract

Provided is a method for evaluating of the chemical stability of a polychloroprene latex that permits evaluation of the chemical stability of polychloroprene at high accuracy. First, an aqueous calcium hydroxide or calcium nitrate solution at a concentration of 0.05 to 0.40 mass % is added to a polychloroprene latex having a solid matter concentration of 45 to 65 mass %. The generated precipitate is then collected by filtration and the dry mass is determined, and the precipitation rate (%) is calculated according to the following Formula (I).


Find Patent Forward Citations

Sunada, Kiyoshi. (2014). Method for evaluating chemical stability of polychloroprene latex (U.S. Patent No. 8883511). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8883511

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