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1. 发明授权

US12024572B2 Method for cleaning a polymerisation reactor 有权
公开(公告)号：US12024572B2
公开(公告)日：2024-07-02
申请号：US17265065
申请日：2019-05-10
申请人： WACKER CHEMIE AG
发明人： Hans-Peter Weitzel , Robert Braunsperger
IPC分类号： C08F210/02 , C08F2/00 , C08F2/24 , C08F6/16 , C08F218/08
CPC分类号： C08F2/008 , C08F2/24 , C08F6/16 , C08F2/002 , C08F210/02 , C08F218/08 , C08F210/02 , C08F218/08 , C08F6/16
摘要： A polymerization reactor for producing aqueous polymer dispersions by radically initiated emulsion polymerization of one or more ethylenically unsaturated monomers in the presence of one or more protective colloids and/or emulsifiers, is cleaned by initially charging an aqueous mixture comprising one or more ethylenically unsaturated monomers, one or more protective colloids and/or emulsifiers, but no oxidation initiator, the proportion of ethylenically unsaturated monomers being 20 to 70% by weight of the aqueous mixture, heating the aqueous mixture to a temperature of 50° C. to 100° C. for 5 minutes to 3 hours, adding one or more initiators and optionally further starting materials, initiating polymerization, removing the aqueous polymer dispersion thus obtained from the polymerization reactor and post-treating the dispersion to remove wall deposits detached during the process.

2. 发明授权

US4345949A Cleaning reactors contaminated with carboxyl containing polymers 失效
标题翻译：用含羧基聚合物污染的清洁反应器
公开(公告)号：US4345949A
公开(公告)日：1982-08-24
申请号：US229705
申请日：1981-01-30
申请人： Hung S. Park , William D. Ryan, Jr. , Harold L. Paine
发明人： Hung S. Park , William D. Ryan, Jr. , Harold L. Paine
IPC分类号： C08F2/00 , B08B3/08 , B08B3/10 , B08B9/08
CPC分类号： C08F2/008
摘要： Polymerization reactor surfaces coated with carboxyl containing polymers may be readily cleaned by filling the polymerization reactor with an aqueous solution of a surface active agent and a polyvalent metal salt and heating to remove the polymer coating.
摘要翻译：用含羧基的聚合物涂覆的聚合反应器表面可以通过用表面活性剂和多价金属盐的水溶液填充聚合反应器并加热以除去聚合物涂层而容易地清洗。

3. 发明授权

US3798064A Congealing and cleaning mixture 失效
标题翻译：组合和清洁混合物
公开(公告)号：US3798064A
公开(公告)日：1974-03-19
申请号：US3798064D
申请日：1971-12-10
申请人： BRAAS & CO GMBH
发明人： AMOSER H
IPC分类号： B29C33/72 , B29C47/08 , C08F2/00 , C08K3/32 , B08B7/00 , B08B9/08
CPC分类号： C08F2/008 , B29C33/722 , B29C47/0009 , B29C47/0877 , C08K3/32 , C08L27/06
摘要： A granular, fluid mixture comprising polyvinyl chloride, a lubricant, sodium tripolyphosphate, and optionally a basic heavy metal compound, and a method of employing the mixture in cleaning the hot metal pots of appliances used in processing plastics are disclosed. This composition and process eliminate the necessity of cooling, shutting down, and dismantling plastic processing appliances before cleaning them free of plastic residues.
摘要翻译：公开了一种包含聚氯乙烯，润滑剂，三聚磷酸钠和任选的碱性重金属化合物的颗粒状流体混合物，以及使用该混合物清洁用于加工塑料的器具的热金属锅的方法。这种组合和工艺消除了在清洁塑料加工设备前没有塑料残留物的冷却，关闭和拆卸的必要性。

4. 发明授权

US3485670A Processes for cleaning apparatus used in processing poly(ethylene-terephthalate) 失效
标题翻译：用于处理聚合物（乙烯 - 庚二酸）的清洁装置的方法
公开(公告)号：US3485670A
公开(公告)日：1969-12-23
申请号：US3485670D
申请日：1966-07-28
申请人： EASTMAN KODAK CO
发明人： FISHER JOSEPH T
IPC分类号： C08F2/00 , C08G63/78 , D01D4/04 , B08B3/04
CPC分类号： D01D4/04 , C08F2/008 , C08G63/785

5. 发明授权

US5508361A Polymer scale preventive agent and process of producing polymer using the same 失效
标题翻译：聚合物防垢剂及使用其制备聚合物的方法
公开(公告)号：US5508361A
公开(公告)日：1996-04-16
申请号：US424070
申请日：1995-04-19
申请人： Toshihide Shimizu , Mikio Watanabe
发明人： Toshihide Shimizu , Mikio Watanabe
IPC分类号： C08F2/00 , C08F10/00 , C08G8/04
CPC分类号： C08F2/008 , C08F10/00
摘要： The polymer scale preventive agent comprises an alkaline solution containing (A) an condensation product of (A-1) a hydroxybiphenyl compound with (A-2) an aldehyde compound, (B) a reaction stopper, and (C) an inorganic colloid and is used for polymerization of a monomer having an ethylenically unsaturated double bond. The process of producing the polymer comprises polymerizing the monomer in a polymerization vessel having a coating film on its inner wall surfaces, whereby polymer scale is prevented from being deposited, wherein said coating film is formed by applying, on said inner wall surfaces, said alkaline solution, followed by drying. According to the invention, deposition of polymer scale can be effectively prevented not only on the areas in the liquid phase but also at and in the vicinity of the interface between the gas and liquid phases in a polymerization vessel. Therefore, the invention does not require to conduct the operation of removing the polymer scale after every polymerization run, whereby the productivity is improved. Further, when the polymeric product obtained using the method of the invention is processed into formed products such as sheets, the resulting formed products have very few fish eyes. In addition, the formed products obtained as above are low in initial coloration.
摘要翻译：聚合物防垢剂包含含有（A）（A-1）羟基联苯化合物与（A-2）醛化合物的缩合产物的碱性溶液，（B）反应停止剂和（C）无机胶体和用于具有烯属不饱和双键的单体的聚合。制造聚合物的方法包括在其内壁表面上具有涂膜的聚合容器中聚合单体，由此防止聚合物垢沉积，其中所述涂膜通过在所述内壁表面上施加所述碱溶液，然后干燥。根据本发明，聚合物垢的沉积不仅可以在液相中的区域，而且在聚合容器中在气相和液相之间的界面附近也可以被有效地防止。因此，本发明不需要在每次聚合运行后进行除去聚合物垢的操作，从而提高生产率。此外，当使用本发明的方法获得的聚合物被加工成成形的产品如片材时，所形成的产品鱼眼非常少。此外，如上获得的成型产品初始着色低。

6. 发明授权

US4976788A Method of cleaning melt-processing equipment with a thermoplastic polyolefin and a bifunctional siloxane 失效
标题翻译：用热塑性聚烯烃和双功能硅氧烷清洗熔融加工设备的方法
公开(公告)号：US4976788A
公开(公告)日：1990-12-11
申请号：US475568
申请日：1990-02-06
申请人： Ronald S. Nohr , J. Gavin MacDonald
发明人： Ronald S. Nohr , J. Gavin MacDonald
IPC分类号： B29C33/72 , B29C47/08 , C08F2/00 , C08L23/02
CPC分类号： C08F2/008 , B29C33/722 , B29C47/0026 , B29C47/0877 , C08L23/02 , B29C47/0014 , B29C47/0021
摘要： A method of cleaning melt-processing equipment which comprises processing in such equipment a thermoplastic composition which comprises at least one thermoplastic polyolefin and at least one siloxane-containing additive having at least two moieties, A and B, in which:(A) said additive is compatible with said polyolefin at melt extrusion temperatures but is incompatible at temperatures below melt extrusion temperatures, but each of moiety A and moiety B, if present as separate compounds, would be incompatible with said polyolefin at melt extrusion temperatures and at temperatures below melt extrusion temperatures;(B) moiety A contains at least one tetrasubstituted disiloxanylene group;(C) moiety B has at least one functional group which is a poly(oxyalkylene) moiety;(D) the molecular weight of said additive is in the range of from about 400 to about 16,000; and(E) said additive is present in said thermoplastic composition at a level of from about 3 to about 12 percent by weight, based on the weight of said thermoplastic polyolefin;in which (1) said at least one thermoplastic polyolefin is not the same polymer as last employed in the melt-processing equipment to be cleaned, and (2) the amount of thermoplastic composition and the processing time are sufficient to clean said processing equipment.
摘要翻译：一种清洗熔融加工设备的方法，其包括在这种设备中加工包含至少一种热塑性聚烯烃和至少一种含有至少两个部分A和B的含硅氧烷的添加剂的热塑性组合物，其中：（A）所述添加剂在熔融挤出温度下与所述聚烯烃相容，但在低于熔融挤出温度的温度下是不相容的，但是部分A和部分B（如果作为分开的化合物存在）将在熔融挤出温度和低于熔体挤出的温度下与所述聚烯烃不相容温度; （B）部分A含有至少一个四取代的二硫代亚苯基; （C）部分B具有至少一个作为聚（氧化烯）部分的官能团; （D）所述添加剂的分子量在约400至约16,000的范围内; 和（E）所述添加剂以基于所述热塑性聚烯烃的重量计约3至约12重量％的量存在于所述热塑性组合物中; 其中（1）所述至少一种热塑性聚烯烃与待清洗的熔融加工设备中最后使用的聚合物不同，和（2）热塑性组合物的量和加工时间足以清洁所述加工设备。

7. 发明授权

US3236688A Process for cleaning chemical processing equipment 失效
标题翻译：化学处理设备清洗工艺
公开(公告)号：US3236688A
公开(公告)日：1966-02-22
申请号：US22672162
申请日：1962-09-27
申请人： GOODRICH GULF CHEM INC
发明人： HENRY KAHN
IPC分类号： C08F2/00 , C08F36/00 , C23F15/00
CPC分类号： C23F15/005 , C08F2/002 , C08F2/008 , C08F36/00

8. 发明授权

US2749313A Method of cleaning polymerization reactors 失效
标题翻译：清洗聚合反应器的方法
公开(公告)号：US2749313A
公开(公告)日：1956-06-05
申请号：US29648252
申请日：1952-06-30
申请人： POLYMER CORP
发明人： LEVERNE WILLIAMS HARRY , GEORGE DAVIDSON MELVIN JOHN
IPC分类号： C08F2/00 , C08F36/00
CPC分类号： C08F2/008 , C08F36/00 , Y10S526/914

9. 发明公开

US20240150500A1 SUBSTRATE PROCESSING APPARATUS 审中-公开
公开(公告)号：US20240150500A1
公开(公告)日：2024-05-09
申请号：US18500087
申请日：2023-11-01
申请人： TOKYO ELECTRON LIMITED
发明人： Tatsuya YAMAGUCHI , Syuji NOZAWA
IPC分类号： C08F2/34 , C08F2/00 , C08G85/00
CPC分类号： C08F2/34 , C08F2/008 , C08G85/008
摘要： A substrate processing apparatus includes a processing container; a stage on which a substrate is placed, the stage being provided in the processing container; a gas supply provided at a position facing the stage and configured to supply a first processing gas containing a first monomer and a second processing gas containing a second monomer into the processing container to form a film of a polymer on the substrate; and a driver configured to move the stage so as to change a distance between the gas supply and the stage. The gas supply is configured to supply the first processing gas and the second processing gas into a space between the gas supply and the stage from an outside of a region on the stage in which the substrate is placed, when viewed in a direction from the gas supply toward the stage.

10. 发明授权

US06722377B1 Process for cleaning reactors 失效
标题翻译：清洗反应器的工艺
公开(公告)号：US06722377B1
公开(公告)日：2004-04-20
申请号：US09641155
申请日：2000-08-17
申请人： Spencer Wayne Bruce , James Kent Carpenter , Jeanine Lee Hurry , Joseph Richard Povernick , Frank Randolph Robertson, III , Robert Hugh Schwartz , Richard Shu-Hua Wu
发明人： Spencer Wayne Bruce , James Kent Carpenter , Jeanine Lee Hurry , Joseph Richard Povernick , Frank Randolph Robertson, III , Robert Hugh Schwartz , Richard Shu-Hua Wu
IPC分类号： B08B302
CPC分类号： B08B3/08 , B08B9/0813 , C08F2/008 , C11D7/06 , C11D7/264 , C11D7/3281 , C11D7/5013 , C11D7/5022 , C11D11/0041
摘要： This invention relates to a process for cleaning reactors. The process utilizes a solvent fed from multiple pressure sources to clean reactors of residual polymers. The reactors are equipped with agitators and stationary nozzles aimed at the agitator blades. The agitator is rotated during cleaning. The process may also utilize heated aqueous base to clean heat exchangers in external loops. In one aspect, a mixture of at least one organic solvent and aqueous base are utilized to clean certain reactors.
摘要翻译：本发明涉及清洗反应器的方法。该方法利用从多个压力源进料的溶剂来清洗残余聚合物的反应器。反应器装有搅拌器和瞄准搅拌器叶片的固定喷嘴。搅拌器在清洁过程中旋转。该方法还可以利用加热的水基来清洁外部环路中的热交换器。一方面，使用至少一种有机溶剂和碱性水溶液的混合物来清洗某些反应器。

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