Class C08G : MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
Subclass 2/10: 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 cyclic oligomers of formaldehyde
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11981772 | Polyoxymethylene and method of producing same | Sep 10, 19 | May 14, 24 | Asahi Kasei Kabushiki Kaisha |
| 11787892 | Process for making an oxymethylene polymer | Jan 09, 18 | Oct 17, 23 | BASF SE; Kolon Plastics Inc.; |
| 11754752 | Photochromic polyurethane laminate | Nov 01, 21 | Sep 12, 23 | HOYA OPTICAL LABS OF AMERICA, INC. |
| 11326051 | Method for producing oxymethylene polymer and oxymethylene polymer resin composition | Jun 10, 20 | May 10, 22 | Mitsubishi Gas Chemical Company Inc. |
| 11181666 | Photochromic polyurethane laminate | May 13, 19 | Nov 23, 21 | VISION EASE, LP |
| 10961384 | Process for improving the flexural toughness of moldings | May 20, 15 | Mar 30, 21 | BASF SE |
| 10954332 | Method for producing oxymethylene copolymer | Jul 16, 19 | Mar 23, 21 | Mitsubishi Gas Chemical Company Inc. |
| 10844191 | Polyacetal resin composition | Feb 23, 18 | Nov 24, 20 | Polyplastics Co. Ltd. |
| 10808067 | Polyoxymethylene resin composition and molded article manufactured with the same | Nov 01, 18 | Oct 20, 20 | Hyundai Motor Company; Kia Motors Corporation; |
| 10781307 | Polyoxymethylene resin molded article, sliding member, and ramp for hard disk | Jul 16, 18 | Sep 22, 20 | Asahi Kasei Kabushiki Kaisha |
| 10703849 | HMF oligomers | Feb 26, 18 | Jul 07, 20 | AVALON Industries AG |
| 10330828 | Photochromic polyurethane laminate | Dec 11, 17 | Jun 25, 19 | VISION EASE, LP |
| 10280258 | Method for producing oxymethylene copolymer | Jun 30, 14 | May 07, 19 | Mitsubishi Gas Chemical Company Inc. |
| 10227448 | Trioxane composition and method for storing same | Dec 29, 17 | Mar 12, 19 | Mitsubishi Gas Chemical Company Inc. |
| 10138321 | Process for production of oxymethylene copolymer | Dec 01, 15 | Nov 27, 18 | Mitsubishi Gas Chemical Company Inc. |
| 9902797 | Method for producing oxymethylene copolymer | May 10, 13 | Feb 27, 18 | MITSUBISHI GAS CHEMICAL COMPANY, INC. |
| 9902806 | Trioxane composition and method for storing the same | Jun 30, 14 | Feb 27, 18 | MITSUBISHI GAS CHEMICAL COMPANY, INC. |
| 9815934 | Isohexide-diacetal based polymers and a process thereof | May 09, 14 | Nov 14, 17 | COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH |
| 9765172 | Process for preparing polyoxymethylene | May 26, 14 | Sep 19, 17 | BASF SE |
| 9745400 | Method for producing polyacetal copolymer | Dec 10, 14 | Aug 29, 17 | POLYPLASTICS CO., LTD. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2022/0372,201 | INITIATED CHEMICAL VAPOR DEPOSITION AND STRUCTURATION OF POLYOXYMETHYLENE | Feb 09, 21 | Nov 24, 22 | Drexel University |
| 2020/0354,500 | METHOD FOR PRODUCING OXYMETHYLENE COPOLYMER | Jul 16, 19 | Nov 12, 20 | Mitsubishi Gas Chemical Company Inc. |
| 2019/0161,572 | POLYOXYMETHYLENE RESIN COMPOSITION AND MOLDED ARTICLE MANUFACTURED WITH THE SAME | Nov 01, 18 | May 30, 19 | Not available |
| 2018/0244,823 | HMF OLIGOMERS | Feb 26, 18 | Aug 30, 18 | AVALON Industries AG |
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