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公开(公告)号:US4940760A
公开(公告)日:1990-07-10
申请号:US418007
申请日:1989-10-06
摘要: Group Transfer Polymerization (GTP) process for preparing a "living" polymer, the process comprising contacting under polymerizing conditions in a polymerization medium, at least one acrylic or maleimide monomer with an initiator which is a tetracoordinate organosilicon, organotin or organogermanium compound having at least one GTP initiating site and a catalyst which is or is a source of an anion selected from the group consisting of bifluoride, fluoride, cyanide, azide or a selected oxyanion, or a selected Lewis acid or Lewis base, the process further characterized in that the initiator or the anion or Lewis acid catalyst is chemically attached (grafted) to a solid support that is insoluble in the polymerization medium.
摘要翻译: 用于制备“活性”聚合物的组转移聚合(GTP)方法,该方法包括在聚合条件下在聚合介质中,至少一种丙烯酸或马来酰亚胺单体与引发剂接触,所述引发剂是四配位有机硅,有机锡或有机锗化合物,至少具有 一个GTP起始位点和一种催化剂,其是选自二氟化物,氟化物,氰化物,叠氮化物或选择的氧阴离子或选择的路易斯酸或路易斯碱的阴离子的来源,其进一步的特征在于, 引发剂或阴离子或路易斯酸催化剂化学连接(接枝)到不溶于聚合介质的固体载体上。
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公开(公告)号:US5019634A
公开(公告)日:1991-05-28
申请号:US418371
申请日:1989-10-06
摘要: Group Transfer Polymerization (GTP) process for preparing a "living" polymer, the process comprising contacting under polymerizing conditions in a polymerization medium, at least one acrylic or maleimide monomer with an initiator which is a tetracoordinate organosilicon, organotin or organogermanium compound having at least one GTP initiating site and a catalyst which is or is a source of an anion selected from the group consisting of bifluoride, fluoride, cyanide, azide or a selected oxyanion, or a selected Lewis acid or Lewis base, the process further characterized in that the initiator or the anion or Lewis acid catalyst is chemically attached (grafted) to a solid support that is insoluble in the polymerization medium.
摘要翻译: 用于制备“活性”聚合物的组转移聚合(GTP)方法,该方法包括在聚合条件下在聚合介质中,至少一种丙烯酸或马来酰亚胺单体与引发剂接触,所述引发剂是四配位有机硅,有机锡或有机锗化合物,至少具有 一个GTP起始位点和一种催化剂,其是选自二氟化物,氟化物,氰化物,叠氮化物或选择的氧阴离子或选择的路易斯酸或路易斯碱的阴离子的来源,其进一步的特征在于, 引发剂或阴离子或路易斯酸催化剂化学连接(接枝)到不溶于聚合介质的固体载体上。
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公开(公告)号:US4180614A
公开(公告)日:1979-12-25
申请号:US861567
申请日:1977-12-16
申请人: Rudolph J. Angelo , Richard N. Blomberg , Fritz P. Boettcher , Richard M. Ikeda , Michael R. Samuels
发明人: Rudolph J. Angelo , Richard N. Blomberg , Fritz P. Boettcher , Richard M. Ikeda , Michael R. Samuels
IPC分类号: B05D7/24 , C08G12/08 , C08G69/32 , C08G73/00 , C08G73/08 , C08G73/10 , C08G73/14 , C08J7/04 , B32B27/34 , B32B27/08 , B32B27/28 , B32B27/36
CPC分类号: B05D1/60 , C08G12/08 , C08G69/32 , C08G73/00 , C08G73/08 , C08G73/1028 , C08G73/1067 , C08G73/14 , C08J7/047 , C08J2477/00 , C08J2479/00 , Y10S428/91 , Y10S428/911 , Y10S428/913 , Y10T428/265 , Y10T428/31681 , Y10T428/31736
摘要: Films, sheets or foils are given a gas-barrier coating of an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide, or polyazomethine by direct vapor-phase condensation polymerization of their respective monomers. The monomers are introduced in an inert diluent gas, mixed and reacted in the presence of the surface to be coated. The surface is maintained above the critical minimum deposition temperature of the monomers but below about 300.degree. C. The coating is formed to a thickness between about 0.1 and 0.6 mil.
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