公开(公告)号：US4094942A

公开(公告)日：1978-06-13

申请号：US650440

申请日：1976-01-19

Applicant: Setsuo Nakai ,  Hiroshi Ochi

Inventor： Setsuo Nakai ,  Hiroshi Ochi

IPC: B29B9/00 ,  B29B7/00 ,  B29B9/06 ,  B29C47/00 ,  B29C47/10 ,  B29C47/76 ,  B29C47/80 ,  B29C47/92 ,  B29C63/00 ,  B32B37/00 ,  C08F6/00 ,  C08F6/06 ,  B29F3/03

CPC classification number: C08F6/001 ,  B29C47/0004 ,  B29C47/1063 ,  B29C47/76 ,  B29C47/805 ,  B29C47/92 ,  B29C2947/92019 ,  B29C2947/924 ,  B29C2947/92419 ,  B29C2947/92514 ,  B29C2947/92895 ,  B29C2947/92914 ,  B29C47/0009 ,  B29C47/0011 ,  B29C47/762 ,  B29K2105/0005

Abstract: A method for removing unreacted monomer (or monomers) from an ethylene homopolymer or a copolymer of ethylene and at least one monomer copolymerizable with ethylene during the course of pelletization by use of an extruder, said polymer having been formed by high-pressure polymerization by use of a radiation or a radical initiator, discharged from the reactor by way of a separator, and fed to said extruder to be pelletized, which method comprises injecting into said extruder 0.1 to 10% by weight (based on said polymer) of water or steam intermixing the polymer and the water or steam in the mixing section of the extruder screw, and subjecting the resulting mix to a subatmospheric pressure of 500 mmHg (absolute) or less in the venting zone provided in the extruder. This method permits efficient removal of the unreacted ethylene or the unreacted ethylene and comonomer contained in a homopolymer or copolymer of ethylene.

Abstract translation: 通过使用挤出机在造粒过程中从乙烯均聚物或乙烯与至少一种可与乙烯共聚的单体的共聚物中除去未反应的单体（或单体）的方法，所述聚合物通过使用高压聚合形成 的辐射或自由基引发剂，通过分离器从反应器排出，并进料到所述挤出机进行造粒，该方法包括将0.1至10重量％（基于所述聚合物）的水或蒸汽 将聚合物和水或蒸汽混合在挤出机螺杆的混合部分中，并将所得混合物在设置在挤出机中的排气区中经受所得混合物的低于大气压500mmHg（绝对）或更低的压力。 该方法允许有效除去乙烯的均聚物或共聚物中所含的未反应的乙烯或未反应的乙烯和共聚单体。

公开(公告)号：US4085266A

公开(公告)日：1978-04-18

申请号：US805908

申请日：1977-06-13

Applicant: Setsuo Nakai ,  Shinichiro Kita ,  Fumihiko Hiki ,  Masayuki Shimizu

Inventor： Setsuo Nakai ,  Shinichiro Kita ,  Fumihiko Hiki ,  Masayuki Shimizu

IPC: B01J3/04 ,  C08F2/00 ,  C08F2/02 ,  C08F2/34 ,  C08F10/00 ,  C08F110/02 ,  C08F4/32

CPC classification number: C08F110/02 ,  B01J3/042

Abstract: In a process for polymerizing ethylene in a two-zone autoclave reactor comprising a top reaction zone and a bottom reaction zone which process comprises polymerizing ethylene in said top reaction zone at 130.degree. to 200.degree. C and at a reaction pressure of 1,000 to 1,800 kg/cm.sup.2 using an initiator, sending the resulting reaction mixture from the top reaction zone to the bottom reaction zone, and further promoting the polymerization at 220.degree. to 280.degree. C using an initiator which is same as or different from the initiator in the top reaction zone, the improvement which comprises feeding 75% or more of the ethylene to the top reaction zone of the two-zone reactor, said two-zone reactor being constructed so that the volume ratio of top reaction zone to bottom reaction zone is 1.5 to 6 and being provided with two or more feed inlets for each of the ethylene and the initiator in the top reaction zone in the direction extending through the two reaction zones.

Abstract translation: 在包含顶部反应区和底部反应区的双区高压釜反应器中聚合乙烯的方法，该方法包括在130℃至200℃下在上述反应区中聚合乙烯，反应压力为1,000至1800kg 使用引发剂，将得到的反应混合物从顶部反应区送至底部反应区，并使用与顶部反应中的引发剂相同或不同的引发剂在220〜280℃进一步促进聚合 该改进包括将75％以上的乙烯进料到双区反应器的顶部反应区，所述双区反应器被构造成使得顶部反应区与底部反应区的体积比为1.5至6 并且在顶部反应区域中沿着延伸穿过两个反应区域的方向为每个乙烯和引发剂提供两个或更多个进料入口。

公开(公告)号：US4046154A

公开(公告)日：1977-09-06

申请号：US654829

申请日：1976-02-03

Applicant: Sugihiko Tada ,  Setsuo Nakai ,  Kazuo Irie ,  Hirokazu Saito ,  Hideaki Suzuki

Inventor： Sugihiko Tada ,  Setsuo Nakai ,  Kazuo Irie ,  Hirokazu Saito ,  Hideaki Suzuki

IPC: G03C11/24 ,  B08B3/08

CPC classification number: G03C11/24

Abstract: Apparatus for continuously removing a film coating material from a photosensitive base comprising continuously removing a photosensitive emulsion from a film base, which is coated with an emulsion, by the contact reaction of a removing liquid with the emulsion, continuously and automatically washing and recovering the emulsion-removed film base, and continuously and automatically concentrating and recovering the silver halide which is contained; also, in the suspension.

Abstract translation: 用于从感光基底连续地除去薄膜涂层材料的装置，包括通过除去液体与乳液的接触反应连续地从涂覆有乳剂的薄膜基底上去除感光乳剂，连续并自动地洗涤和回收乳液 并且连续自动地浓缩和回收所含的卤化银; 也在暂停。