Perfluorocarbon-polymeric coatings having low critical surface tensions
    1.
    发明授权
    Perfluorocarbon-polymeric coatings having low critical surface tensions 失效
    具有低临界表面张力的全氟碳聚合物涂层

    公开(公告)号:US4344993A

    公开(公告)日:1982-08-17

    申请号:US182892

    申请日:1980-09-02

    摘要: Coatings having very low critical surface tensions comprise (1) a hydrophilic polymer such as polyacrylamide, (2) an ionic perfluorocarbon compound such as 3-[((heptadecafluorooctyl)sulfonyl)amino]-N,N,N-trimethyl-1-propanaminium iodide and (3) a cyclic sulfonium zwitterion cross-linking agent such as 2,2-bis(3-tetrahydrothiophenium-4-oxidophenyl)-propylidene. Such coatings are most advantageously employed as release coatings on internal surfaces of chemical reaction vessels in order to minimize the deposition (build-up) of undesirable materials on such internal surfaces.

    摘要翻译: 具有非常低的临界表面张力的涂层包括(1)亲水性聚合物如聚丙烯酰胺,(2)离子全氟化碳化合物如3 - [((十七氟辛基)磺酰基)氨基] -N,N,N-三甲基-1-丙胺 碘化物和(3)环状锍两性离子交联剂如2,2-双(3-四氢噻吩-4-氧基苯基) - 亚丙基。 这种涂层最有利地用作化学反应容器的内表面上的剥离涂层,以便最小化在这样的内表面上不期望的材料的沉积(堆积)。