Chlorinated vinyl-chloride-based resin
US-2022144979-A1 · May 12, 2022 · US
Chlorinated vinyl chloride resin
US12187883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12187883-B2 |
| Application number | US-202017435202-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2020 |
| Priority date | Mar 29, 2019 |
| Publication date | Jan 7, 2025 |
| Grant date | Jan 7, 2025 |
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Abstract
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The present invention provides a chlorinated polyvinyl chloride resin that enables a molded article to have both processability and unevenness-preventing properties and also high gloss. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cm −1 to a peak intensity B observed in a range of 600 to 650 cm 1 of 0.50 to 2.00 in Raman imaging measurement by Raman spectroscopy, and having a standard deviation of the ratio (A/B) of the peak intensity A to the peak intensity B of 0.100 to 0.200 in Raman measurement by Raman spectroscopy.
First claim
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The invention claimed is: 1. A chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cm −1 to a peak intensity B observed in a range of 600 to 650 cm −1 of 0.50 to 2.00 in Raman imaging measurement by Raman spectroscopy, and having a standard deviation of the ratio (A/B) of the peak intensity A to the peak intensity B of 0.100 to 0.200 in Raman measurement by Raman spectroscopy, wherein the chlorinated polyvinyl chloride resin contains units (a) to (c) represented by the following formulas (a) to (c), and a proportion of the structural unit (a) is 5.0 mol % or higher, a proportion of the structural unit (b) is 40.0 mol % or lower, and a proportion of the structural unit (c) is 55.0 mol % or lower, relative to a total number of moles of the structural units (a), (b), and (c) 2. A resin composition for molding comprising the chlorinated polyvinyl chloride resin according to claim 1 . 3. A molded article molded from the resin composition for molding according to claim 2 . 4. The chlorinated polyvinyl chloride resin according to claim 1 , wherein the proportion of the structural unit (b) is 15.0 to 30.0 mol %. 5. The chlorinated polyvinyl chloride resin according to claim 1 , wherein an amount of added chlorine is 3.3 to 13.1% by mass. 6. The chlorinated polyvinyl chloride resin according to claim 1 , wherein the proportion of the structural unit (b) is 15.0 to 25.0 mol %. 7. The chlorinated polyvinyl chloride resin according to claim 1 , wherein the proportion of the structural unit (c) is 25.0 to 40.0 mol %.
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- What does patent US12187883B2 cover?
- The present invention provides a chlorinated polyvinyl chloride resin that enables a molded article to have both processability and unevenness-preventing properties and also high gloss. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cm −1 to a peak intensity B observed in a range of 600 to 650 cm 1 …
- Who is the assignee on this patent?
- Sekisui Chemical Co Ltd, Tokuyama Sekisui Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08L27/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 07 2025 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).