Method for preparing conjugated diene-based polymer and method for preparing graft copolymer comprising the same

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United States of America Patent

PATENT NO 12037435
APP PUB NO 20210221935A1
SERIAL NO

17051517

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Abstract

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The present invention relates to a method for preparing a conjugated diene-based polymer, which includes a step of preparing a conjugated diene-based polymer by initiating and carrying out polymerization while continuously adding conjugated diene-based monomers to a reactor, and in which an emulsifier is dividedly added before the initiation of the polymerization and when a polymerization conversion rate of 31% to 80% is reached. More particularly, the present invention relates to: a method for preparing a conjugated diene-based polymer and a method for preparing a graft copolymer including the method for preparing a conjugated diene-based polymer, by which a total usage amount of an emulsifier can be reduced.

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Patent Owner(s)

Patent OwnerAddress
LG CHEM LTDSEOUL SOUTH KEREAN SEOUL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bak, Chang Hong Daejeon, KR 4 0
Han, Su Jeong Daejeon, KR 12 29
Heo, Jae Won Daejeon, KR 26 65
Jeong, Young Hwan Daejeon, KR 18 28
Kim, Yoo Vin Daejeon, KR 16 29
Kim, Young Min Daejeon, KR 342 1756
Lee, Jin Hyoung Daejeon, KR 54 719
Suk, Jae Min Daejeon, KR 17 32

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