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:
Apr. 03, 2018
Filed:
Jun. 05, 2015
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jae Min Lee, Daejeon, KR;
Se Eun Lee, Daejeon, KR;
Byoung Yun Kim, Daejeon, KR;
In Sung Jo, Daejeon, KR;
Woo Seok Choi, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
C08F 236/12 (2006.01); C08K 5/09 (2006.01); C08K 3/04 (2006.01); C08J 3/24 (2006.01); C08C 3/02 (2006.01); C08C 19/20 (2006.01);
U.S. Cl.
CPC ...
C08F 236/12 (2013.01); C08C 3/02 (2013.01); C08C 19/20 (2013.01); C08J 3/24 (2013.01); C08K 3/04 (2013.01); C08K 5/09 (2013.01);
Abstract
Provided are a method for preparing a nitrile-based rubber having an amount of ethylenically unsaturated nitrile of 34 wt % or less including preparing a polymer by performing a polymerization reaction by adding an ethylenically unsaturated nitrile-based monomer in two or more portions to a conjugated diene-based monomer, and coagulating the polymer by adding a sulfur-based coagulant to the polymer, and a nitrile-based rubber thus prepared having improved mechanical properties as well as excellent processability and low temperature characteristics.