Processes for recovering dialkyl terephthalates from tetramethyl cyclobutanediol (tmcd)-containing polymers
US-2026071047-A1 · Mar 12, 2026 · US
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both carbon chains being substituted by hydroxy or O-metal groups
both carbon chains being substituted by hydroxy or O-metal groups · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C43/132 |
| Official title | {both carbon chains being substituted by hydroxy or O-metal groups} |
| Display label | both carbon chains being substituted by hydroxy or O-metal groups |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for recovering dialkyl terephthalates from polyester compositions
US-2026070868-A1 · Mar 12, 2026 · US
Processes for recovering dialkyl terephthalates from feedstocks
US-2025002677-A1 · Jan 2, 2025 · US
Processes for recovering dialkyl terephthalates from polyester compositions
US-2025002676-A1 · Jan 2, 2025 · US
Processes for recovering dialkyl terephthalates from polyester compositions
US-2024409488-A1 · Dec 12, 2024 · US
Compound and composition
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Long alpha-omega di-functional linear ethers
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Rust inhibitor, rust inhibitor composition, coating formation material, coating, and metal component
US-2022213383-A1 · Jul 7, 2022 · US
Compound and composition
US-2022144741-A1 · May 12, 2022 · US
Long alpha-omega di-functional linear ethers
US-2021047255-A1 · Feb 18, 2021 · US
Glycol ether process
US-10160709-B2 · Dec 25, 2018 · US
Preparation of polyglycerols
US-9956547-B2 · May 1, 2018 · US
Glycol ether process
US-2018044272-A1 · Feb 15, 2018 · US
Polyether diol and method for producing the same
US-9790155-B2 · Oct 17, 2017 · US
Polyol-ether compound and method for producing the same
US-9656935-B2 · May 23, 2017 · US
Polyol-ether compound and method for producing the same
US-2016083321-A1 · Mar 24, 2016 · US
Polyether diol and method for producing the same
US-2015329454-A1 · Nov 19, 2015 · US
Method for producing ditrimethylolpropane
US-9169184-B2 · Oct 27, 2015 · US
Antimicrobial compositions comprising trimethylene glycol oligomer and methods of using the compositions
US-9018263-B2 · Apr 28, 2015 · US