Articles comprising copolyesters produced with germanium catalyst
US-2024376258-A1 · Nov 14, 2024 · US
Particle manufacturing method, particles, and particle manufacturing apparatus
US9469723B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9469723-B2 |
| Application number | US-201314432655-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 27, 2013 |
| Priority date | Oct 10, 2012 |
| Publication date | Oct 18, 2016 |
| Grant date | Oct 18, 2016 |
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- Title
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Abstract
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A particle manufacturing method of the present invention includes: ring-opening-polymerizing a ring-opening-polymerizable monomer after bringing the ring-opening-polymerizable monomer into contact with a first compressible fluid; and granulating a polymer obtained in the ring-opening-polymerizing by jetting the polymer and the first compressible fluid.
First claim
Opening claim text (preview).
The invention claimed is: 1. A particle manufacturing method, comprising: polymerizing a ring-opening-polymerizable monomer after bringing the ring-opening-polymerizable monomer into contact with a first compressible fluid comprising carbon dioxide via a ring-opening polymerization to obtain a polymer; and granulating the polymer by jetting the polymer with a second compressible fluid comprising nitrogen supplied to the polymer. 2. The method according to claim 1 , wherein the polymerizing occurs in the presence of a catalyst. 3. The method according to claim 1 , wherein a conversion ratio of the ring-opening-polymerizable monomer to the polymer is 98 mol % or higher. 4. The method according to claim 1 , wherein the ring-opening-polymerizable monomer is brought into contact with the first compressible fluid to melt the ring-opening-polymerizable monomer. 5. The method according to claim 1 , wherein the first compressible fluid consists of carbon dioxide, and the second compressible fluid consists of nitrogen. 6. The method according to claim 1 , wherein: the polymerizing occurs in the presence of a catalyst; a conversion ratio of the ring-opening-polymerizable monomer to the polymer is 98 mol % or higher; and the ring-opening-polymerizable monomer is brought into contact with the first compressible fluid to melt the ring-opening-polymerizable monomer. 7. The method according to claim 6 , wherein the first compressible fluid consists of carbon dioxide, and the second compressible fluid consists of nitrogen. 8. The method according to claim 1 , wherein the ring-opening-polymerizable monomer is a cyclic ester or a cyclic carbonate and the polymer is a pressure-plastic material. 9. The method according to claim 6 , wherein the ring-opening-polymerizable monomer is a cyclic ester or a cyclic carbonate and the polymer is a pressure-plastic material. 10. The method according to claim 7 , wherein the ring-opening-polymerizable monomer is a cyclic ester or a cyclic carbonate and the polymer is a pressure-plastic material.
Assignees
Inventors
Classifications
- C08G63/78Primary
Preparation processes · CPC title
Pulverisation by spraying · CPC title
Stationary reactors without moving elements inside · CPC title
- C08G63/08Primary
Lactones or lactides · CPC title
Stationary reactors without moving elements inside (B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02) · CPC title
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- What does patent US9469723B2 cover?
- A particle manufacturing method of the present invention includes: ring-opening-polymerizing a ring-opening-polymerizable monomer after bringing the ring-opening-polymerizable monomer into contact with a first compressible fluid; and granulating a polymer obtained in the ring-opening-polymerizing by jetting the polymer and the first compressible fluid.
- Who is the assignee on this patent?
- Osaka Keiko, Tanaka Chiaki, Nemoto Taichi, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C08G63/78. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 18 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).