Bulk PVC composition, bulk PVC polymerization method and apparatus
AssigneeLG Chem, Ltd.
InventorsDong Kwon Lee, Kwang Hyon Kim, Bo Hee Park, Se Woong Lee, Jin Hyuck Ju
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Abstract
Disclosed are a bulk PVC composition and a bulk PVC polymerization method using the same. According to the present invention, a bulk PVC composition that may effectively prevent generation of fine particles and scale (adhering to a reactor wall) during bulk polymerization and may be prepared without a post-treatment process of an antistatic agent added to easily isolate fine particles after bulk PVC polymerization, and a method and apparatus for polymerizing the same may be provided.
Claims10
A bulk PVC composition comprising a vinyl chloride monomer, an initiator and a bulk PVC particle coating agent,
- wherein the PVC particle coating agent is a hydrocarbon alcohol having two to four hydroxyl groups, and
- wherein the hydrocarbon alcohol having two to four hydroxyl groups is one or more selected from ethylene glycol, diethylene glycol, propylene glycol, hexamethylene glycol, propanetriol, trimethylolpropane and pentaerythritol.
A bulk PVC polymerization method, wherein the bulk PVC polymerization is performed such that a distribution ratio of fine particles having sizes of 70 μm or less is less than 2.5%.
Dependencies are inferred from the claim text.