发明名称 |
WERKWIJZE VOOR HET BEREIDEN VAN 2,2'-METHYLEEN-BIS-(4,6-DIALKYLFENOLEN). |
摘要 |
Bridged bis(4,6-dialkylphenol)cpds. (I) are produced by reaction of 2,4-dialkylphenols with excess acetal in presence of acid catalyst. (I) are stabilisers for polymers. Process gives high yields (97-98%), is simple does not require water in reaction medium and avoids pollution. |
申请公布号 |
NL170846(B) |
申请公布日期 |
1982.08.02 |
申请号 |
NL19750014666 |
申请日期 |
1975.12.16 |
申请人 |
NAUCHNO-ISSLEDOVATELSKY INSTITUT REZINOVYKH I LATEXNYKH IZDELY TE MOSKOU EN STERLITAMAXKY OPYTNO-PROMYSHLENNY ZAVOD PO PROIZVODSTVU IZOPRENOVOGO KAUCHUKA TE STERLITAMAK, U.S.S.R. |
发明人 |
|
分类号 |
C07C37/11 |
主分类号 |
C07C37/11 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|