Novel biobased polyester
US-2024327659-A1 · Oct 3, 2024 · US
Resin, resin composition, and shaped object
US2024247099A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024247099-A1 |
| Application number | US-202418627503-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 5, 2024 |
| Priority date | Oct 6, 2021 |
| Publication date | Jul 25, 2024 |
| Grant date | — |
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Abstract
Official abstract text for this publication.
Provided is a resin containing a polybutylene succinate sebacate, characterized in that a content of an alkali metal is 0.001 mass ppm or more and 6.0 mass ppm or less. According to the present invention, it is possible to provide a polyester resin, a resin composition and a shaped object which achieve both biodegradability in seawater and hydrolysis resistance, which are contradictory properties, at high level.
First claim
Opening claim text (preview).
1 . A resin comprising a polybutylene succinate sebacate, wherein a content of an alkali metal is 0.001 mass ppm or more and 6.0 mass ppm or less. 2 . The resin according to claim 1 , wherein a S/Se, which is a ratio of a number of groups derived from succinic acid to a number of groups derived from sebacic acid constituting the polybutylene succinate sebacate, is within a range of 71/29 to 95/5. 3 . The resin according to claim 1 , wherein a S/Se, which is a ratio of a number of groups derived from succinic acid to a number of groups derived from sebacic acid constituting the polybutylene succinate sebacate, is within a range of 71/29 to 89/11. 4 . The resin according to claim 1 , wherein an acid value is 50 eq/t or less. 5 . The resin according to claim 1 , wherein a content of sulfur atoms is 4.0 mass ppm or less. 6 . The resin according to claim 1 , wherein a weight-average molecular weight of the polybutylene succinate sebacate is 10,000 or more and 2,500,000 or less. 7 . The resin according to claim 1 , wherein a reduced viscosity at 30° C. is 0.5 dL/g or more and 4.0 dL/g or less. 8 . A resin composition containing the resin according to claim 1 . 9 . A shaped object containing the resin according to claim 1 .
Assignees
Inventors
Classifications
Compositions for preparing biodegradable polymers · CPC title
Alkali metal · CPC title
Sulfur · CPC title
Metals · CPC title
Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof {(C08G63/823 takes precedence)} · CPC title
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- What does patent US2024247099A1 cover?
- Provided is a resin containing a polybutylene succinate sebacate, characterized in that a content of an alkali metal is 0.001 mass ppm or more and 6.0 mass ppm or less. According to the present invention, it is possible to provide a polyester resin, a resin composition and a shaped object which achieve both biodegradability in seawater and hydrolysis resistance, which are contradictory properti…
- Who is the assignee on this patent?
- Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification C08G63/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jul 25 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).