Method for preparing vinyl chloride-based resin
US-2016376387-A1 · Dec 29, 2016 · US
Method for production of vinyl chloride-based polymer by suspension polymerization
US9315596B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9315596-B2 |
| Application number | US-30829407-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 9, 2007 |
| Priority date | Jun 12, 2006 |
| Publication date | Apr 19, 2016 |
| Grant date | Apr 19, 2016 |
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Abstract
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The present invention provides a method of preparing vinyl chloride polymer having excellent processability and high bulk density by the separate stepwise additions of vinyl chloride monomer during suspension polymerization.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of preparing vinyl chloride polymer comprising: suspension-polymerizing vinyl chloride monomer in the presence of a protective colloid auxiliary, a polymerization initiator at a polymerization temperature, introducing additional vinyl chloride monomer (a) when the polymerization conversion rate reaches from 30 to 40%; and (b) when the polymerization conversion rate reaches from 60 to 70%, suspension-polymerizing the additional vinyl ch…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08F14/06Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9315596B2 cover?
- The present invention provides a method of preparing vinyl chloride polymer having excellent processability and high bulk density by the separate stepwise additions of vinyl chloride monomer during suspension polymerization.
- Who is the assignee on this patent?
- Ahn Seong-Yong, Kim Kyung-Hyun, Kim Young-Suk, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C08F14/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).