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1.
公开(公告)号:US4344993A
公开(公告)日:1982-08-17
申请号:US182892
申请日:1980-09-02
CPC分类号: C08F2/004 , B05D5/083 , B05D7/227 , C09D133/26
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)。
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2.
公开(公告)号:US3963690A
公开(公告)日:1976-06-15
申请号:US512642
申请日:1974-10-07
申请人: Malcolm E. Pruitt , Joe B. Lovett
发明人: Malcolm E. Pruitt , Joe B. Lovett
CPC分类号: B01J19/18 , B01J19/0013 , B01J3/04 , C08F110/02 , B01J2219/00058 , B01J2219/00083 , B01J2219/0009 , B01J2219/00155 , B01J2219/185 , B01J2219/1943
摘要: Polymerization of ethylene by free-radical initiation at high temperature and pressure in a stirred autoclave by continuous process is improved by means of cooling at inner wall in contact with polymerization reaction mixture and removing part of the exothermic heat of polymerization reaction by indirect heat transfer to heat exchange fluid.
摘要翻译: 通过在搅拌的高压釜中通过连续方法在高温和高压下自由基引发乙烯的聚合通过在与聚合反应混合物接触的内壁处的冷却来提高,并通过间接热转移除去部分聚合反应的热量 热交换流体。
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