US 11,952,443 B2
Composition for preparing vinyl chloride-based polymer and method of preparing vinyl chloride-based polymer using the same
Yang Jun Jeon, Daejeon (KR); Hyun Min Lee, Daejeon (KR); Hyun Kyou Ha, Daejeon (KR); Kun Ji Kim, Daejeon (KR); Kwang Jin Lee, Daejeon (KR); Jin Hyuck Ju, Daejeon (KR); and Jae Hyun Park, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/265,133
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Oct. 30, 2019, PCT No. PCT/KR2019/014499
§ 371(c)(1), (2) Date Feb. 1, 2021,
PCT Pub. No. WO2020/091429, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10-2018-0133740 (KR), filed on Nov. 2, 2018.
Prior Publication US 2021/0309769 A1, Oct. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 14/06 (2006.01); C08K 3/26 (2006.01); C08L 27/06 (2006.01)
CPC C08F 14/06 (2013.01) [C08K 3/26 (2013.01); C08K 2201/019 (2013.01)] 11 Claims
 
1. A composition for preparing a vinyl chloride-based polymer, the composition comprising:
a vinyl chloride-based monomer,
a transition metal catalyst,
a pH regulator composed of a carbonate-based metal salt, and
0 ppm to 150 ppm of a reducing agent based on a weight of the vinyl chloride-based monomer,
wherein the transition metal catalyst is included in an amount of 0.01 ppm to 3.0 ppm based on the weight of the vinyl chloride-based monomer.