Class C08G : MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
Subclass 2/08: Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances Polymerisation of formaldehyde
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12091525 | Polyoxymethylene composition in food handling applications | May 30, 19 | Sep 17, 24 | CELANESE INTERNATIONAL CORPORATION |
| 11939464 | Low emission polyoxymethylene composition | Jul 01, 22 | Mar 26, 24 | Ticona LLC |
| 11897996 | Ammonia and ammonium hydroxide stabilizers for paraformaldehyde | Sep 05, 19 | Feb 13, 24 | CELANESE INTERNATIONAL CORPORATION |
| 11377516 | Low emission polyoxymethylene composition | May 07, 20 | Jul 05, 22 | Ticona LLC |
| 10676558 | Low emission polyoxymethylene composition | Apr 06, 18 | Jun 09, 20 | Ticona LLC |
| 9765172 | Process for preparing polyoxymethylene | May 26, 14 | Sep 19, 17 | BASF SE |
| 9469715 | copolymers | Dec 17, 13 | Oct 18, 16 | COVESTRO DEUTSCHLAND AG |
| 8236430 | Composite bodies, method for the production thereof and use thereof | Dec 22, 04 | Aug 07, 12 | CELANESE SALES GERMANY GMBH |
| 7476718 | Process for producing polyoxymethylene | Jun 10, 05 | Jan 13, 09 | E. I. DU PONT DE NEMOURS AND COMPANY |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0417,546 | Polyoxymethylene Composition in Food Handling Applications | Aug 27, 24 | Dec 19, 24 | Not available |
| 2023/0151,180 | RECYCLING OF POLYACETAL FOR THE PRODUCTION OF POLYOXYMETHYLENE DIALKYL ETHERS | Apr 06, 21 | May 18, 23 | Not available |
| 2022/0403,087 | METHOD FOR PRODUCING POLYOXYMETHYLENE POLYOXYALKYLENE COPOLYMERS | Dec 14, 20 | Dec 22, 22 | Not available |
| 2022/0332,879 | Low Emission Polyoxymethylene Composition | Jul 01, 22 | Oct 20, 22 | Not available |
| 2022/0033,559 | AMMONIA AND AMMONIUM HYDROXIDE STABILIZERS FOR PARAFORMALDEHYDE | Sep 05, 19 | Feb 03, 22 | Celanese International Corporation |
| 2022/0002,467 | PROCESS FOR PRODUCING POLYOXYMETHYLENE POLYMERS HAVING INTERMEDIATE CHAIN LENGTH | Nov 20, 19 | Jan 06, 22 | Not available |
| 2020/0262,962 | Low Emission Polyoxymethylene Composition | May 07, 20 | Aug 20, 20 | Not available |
| 2018/0291,136 | Low Emission Polyoxymethylene Composition | Apr 06, 18 | Oct 11, 18 | Not available |
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