Invention Grant
US09074072B2 Large-sized vinyl chloride seed, method of preparing the seed, vinyl chloride resin prepared using the seed, and method of preparing the vinyl chloride resin
有权
大型氯乙烯种子，种子的制备方法，使用种子制备的氯乙烯树脂，以及制备氯乙烯树脂的方法
- Patent Title: Large-sized vinyl chloride seed, method of preparing the seed, vinyl chloride resin prepared using the seed, and method of preparing the vinyl chloride resin
- Patent Title (中): 大型氯乙烯种子，种子的制备方法，使用种子制备的氯乙烯树脂，以及制备氯乙烯树脂的方法
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Application No.: US14447894Application Date: 2014-07-31
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Publication No.: US09074072B2Publication Date: 2015-07-07
- Inventor: Kyung Seog Youk , Hyun Jin Shin , Han Hong Kim
- Applicant: LG Chem, Ltd.
- Applicant Address: KR
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: KR10-2008-0055486 20080613; KR10-2008-0101315 20081015
- Main IPC: C08F2/22
- IPC: C08F2/22 ; C08F114/06 ; C08K5/42
Abstract:
The present invention relates to a large-sized vinyl chloride seed with an average particle size of 0.65 to 1.5 μm, a vinyl chloride resin with improved low-viscosity properties, and preparation methods thereof. The preparation of the large-sized vinyl chloride seed includes adding a vinyl chloride monomer, an emulsifier, and a polymerization initiator to an aqueous medium; homogenizing the mixed solution using a rotor-stator type homogenizer; and subjecting the resultant monomer droplets to a polymerization reaction.
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