Class C08G : MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
Subclass 2/34: Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances Chemical modification by after-treatment by etherification
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9725551 | Aromatic hydrocarbon formaldehyde resin, modified aromatic hydrocarbon formaldehyde resin and epoxy resin, and method for producing these | Jun 16, 14 | Aug 08, 17 | MITSUBISHI GAS CHEMICAL COMPANY, INC. |
| 9090842 | Method for refining polyoxymethylene dialkyl ethers by catalytic hydrogenation using a slurry bed | Apr 21, 14 | Jul 28, 15 | Dongfang Hongsheng New Energy Application Technology Research Institute Co., Ltd |
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