| 摘要 |
1,233,796. Purification of 2,2-dimethyl-1,3- propandiol mono (hydroxypivalate). BADISCHE ANILIN- & SODA-FABRIK A.G. 4 Oct., 1968 [6 Oct., 1967], No. 47184/68. Heading C2C. 2,2 - Dimethyl - 1,3 - propanediol mono (hydroxypivolate) is purified by treating at from 0‹ C. to 100‹ C. with an acid cation-exchanger. Phenolsulphonic acid, polystyrenesulphonic acid resins and bifunctional condensation resins are mentioned. |
