Production of 1,5-pentanediol via upgrading of tetrahydrofurfuryl alcohol
US-10077224-B1 · Sep 18, 2018 · US
Compositions and methods for biodegradable, biomass-based polyesters
US12448482B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12448482-B2 |
| Application number | US-202418746395-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 18, 2024 |
| Priority date | Sep 27, 2021 |
| Publication date | Oct 21, 2025 |
| Grant date | Oct 21, 2025 |
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Abstract
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The disclosure relates to biomass-based polyester materials; methods of making biomass-based polyester materials; polyester compositions comprising the disclosed biomass-based polyester materials; polymer compositions comprising the biomass-based polyester materials and one or more additional polymer, including a conventional or non-biomass-based polymer; and articles comprising the disclosed biomass-based polyester materials or disclosed polymer compositions comprising a disclosed biomass-based polyester materials.
First claim
Opening claim text (preview).
What is claimed is: 1. A biomass-based polyester material comprising: repeating units derived from a first monomer component, wherein the first monomer component is 1,5-pentanediol (1,5-PDO), wherein 1,5-pentanediol (1,5-PDO) is a biomass-based monomer component, and repeating units derived from a pair of second monomer components, wherein the pair of second monomer components are adipic acid and terephthalic acid (TPA); wherein the repeating units derived from the first monomer component are present in an amount of from about 25 mol % to about 75 mol %; wherein the repeating units derived from the pair of second monomer components are present in an amount of from about 25 mol % to about 75 mol %; wherein the ratio of the first monomer component to the pair of second monomer components, on a molar basis, is from about 1.5:1 to about 1:1.5; and wherein the mol % is based on the total of the repeating units derived from the first monomer component and the repeating units derived from the pair of second monomer components. 2. The biomass-based polyester material of claim 1 , wherein the repeating units derived from the first monomer component are present in an amount of from about 35 mol % to about 65 mol %. 3. The biomass-based polyester material of claim 1 , wherein the biomass-based polyester material has a molecular weight of from about 70 kDa to about 200 kDa. 4. The biomass-based polyester material of claim 1 , wherein the biomass-based polyester material has melting temperature (T m ) of from about 90° C. to about 115° C., wherein the biomass-based polyester material has a molecular weight (weight average) of from about 80 kDa to about 200 kDa, and wherein the glass transition temperature (Tg) is less than or equal to about −10° C. 5. The biomass-based polyester material of claim 1 , wherein the repeating units derived from the first monomer component are present in an amount of from about 45 mol % to about 55 mol %. 6. The biomass-based polyester material of claim 1 , wherein the ratio of the first monomer component to the pair of second monomer components, on a molar basis, is about 1:1. 7. The biomass-based polyester material of claim 1 , wherein the ratio of the first monomer component to the pair of second monomer components, on a molar basis, is about 1:1.1 to 1.1:1. 8. The biomass-based polyester material of claim 1 , wherein the ratio of the adipic acid to the terephthalic acid (TPA) is about 1:2 to 2:1. 9. The biomass-based polyester material of claim 1 , wherein adipic acid is present in an amount of about 5 mol % to about 40 mol % and terephthalic acid (TPA) is present in an amount of about 60 mol % to about 95 mol %.
Assignees
Inventors
Classifications
Acids or hydroxy compounds containing cycloaliphatic rings · CPC title
the acids or hydroxy compounds containing carbocyclic rings · CPC title
- C08G63/183Primary
Terephthalic acids · CPC title
- C08G63/181Primary
Acids containing aromatic rings · CPC title
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- What does patent US12448482B2 cover?
- The disclosure relates to biomass-based polyester materials; methods of making biomass-based polyester materials; polyester compositions comprising the disclosed biomass-based polyester materials; polymer compositions comprising the biomass-based polyester materials and one or more additional polymer, including a conventional or non-biomass-based polymer; and articles comprising the disclosed b…
- Who is the assignee on this patent?
- Univ Massachusetts
- What technology area does this patent fall under?
- Primary CPC classification C08G63/183. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 21 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).