公开(公告)号：EP1565525B1

公开(公告)日：2014-08-20

申请号：EP03778523.5

申请日：2003-11-26

申请人： Borealis Technology Oy

发明人： BAANN, Hege, Vale ,  EGGEN, Svein, Staal ,  EKLIND, Hans ,  HELLAND, Irene ,  JOHANSSON, Solveig ,  SULTAN, Bernt-Ake ,  MALMBERG, Anneli ,  NORD-VARHAUG, Katrin ,  WALTER, Philipp

IPC分类号： C08L23/08

CPC分类号： C08L23/0815 ,  C08L2205/02 ,  C08L2666/06

公开(公告)号：EP1141977B1

公开(公告)日：2004-03-31

申请号：EP99958595.3

申请日：1999-11-12

申请人： Borealis Technology Oy

发明人： DAMMERT, Ruth ,  SULTAN, Bernt-Ake ,  FAGRELL, Ola

IPC分类号： H01B3/44 ,  C08L101/10 ,  C08K5/42 ,  C08J3/24

CPC分类号： H01B3/46 ,  C08K5/42 ,  C08K5/5419 ,  H01B3/44 ,  C08L43/04

摘要： A composition for an insulating layer of a medium to high voltage power cable is disclosed. The composition comprises a cross-linkable polymer with hydrolysable silane groups, and a silanol condensation catalyst of formula (I) ArSO3H or a precursor thereof, Ar being a benzene ring substituted with at least one hydrocarbyl radical such that the total number of carbon atoms of the hydrocarbyl radical (s) is 8-20, or a naphthalene ring substituted with at least one hydrocarbyl radical such that the total number of carbon atoms of the hydrocarbyl radical(s) is 4-18, and the catalyst of formula (I) containing 14-28 carbon atoms in total. A medium to high voltage cable with an insulating layer that has a thickness of more than 2 mm and that comprises the cross-linked product of the above mentioned composition is also disclosed, as is a process of preparing such a cable by cross-linking the cable in the presence of steam at a superatmospheric pressure. Preferably the crosslinking is carried out with saturated steam in a vulcanising tube at about 0.8-1.2 MPa and 170-190°C.

公开(公告)号：EP1565525A1

公开(公告)日：2005-08-24

申请号：EP03778523.5

申请日：2003-11-26

申请人： Borealis Technology Oy

发明人： BAANN, Hege, Vale ,  EGGEN, Svein, Staal ,  EKLIND, Hans ,  HELLAND, Irene ,  JOHANSSON, Solveig ,  SULTAN, Bernt-Ake ,  MALMBERG, Anneli ,  NORD-VARHAUG, Katrin ,  WALTER, Philipp

IPC分类号： C08L23/04

CPC分类号： C08L23/0815 ,  C08L2205/02 ,  C08L2666/06

摘要： The invention provides the use in the manufacture of a polyethylene article of a polyethylene composition comprising 20 to 50 % wt of a copolymer of ethylene and a C3-20 alpha olefin comonomer and 50 to 80 % wt of a lower weight average molecular weight ethylene polymer, the polyethylenes of said composition together having a density of 935 to 965 kg /m3, a weight average molecular weight of 60000 to 300000 g/mol, an MFR2.16 at 190°C of 0.1 to 10 g/10 min., and a molecular weight distribution (MWD) of from 2.5 to 20, said copolymer having a comonomer content of from 0.006 to 9 mol % and a degree of branching of 0.03 to 45 branches per 1000 carbons, and said ethylene polymer having a density of 939 to 975 kg/m3 and a weight average molecular weight of 20000 to 200000 g/mol.

公开(公告)号：EP1141977A1

公开(公告)日：2001-10-10

申请号：EP99958595.3

申请日：1999-11-12

申请人： Borealis Technology Oy

发明人： DAMMERT, Ruth ,  SULTAN, Bernt-Ake ,  FAGRELL, Ola

IPC分类号： H01B3/44 ,  C08L101/10 ,  C08K5/42 ,  C08J3/24

CPC分类号： H01B3/46 ,  C08K5/42 ,  C08K5/5419 ,  H01B3/44 ,  C08L43/04

摘要： A composition for an insulating layer of a medium to high voltage power cable is disclosed. The composition comprises a cross-linkable polymer with hydrolysable silane groups, and a silanol condensation catalyst of formula (I) ArSO3H or a precursor thereof, Ar being a benzene ring substituted with at least one hydrocarbyl radical such that the total number of carbon atoms of the hydrocarbyl radical (s) is 8-20, or a naphthalene ring substituted with at least one hydrocarbyl radical such that the total number of carbon atoms of the hydrocarbyl radical(s) is 4-18, and the catalyst of formula (I) containing 14-28 carbon atoms in total. A medium to high voltage cable with an insulating layer that has a thickness of more than 2 mm and that comprises the cross-linked product of the above mentioned composition is also disclosed, as is a process of preparing such a cable by cross-linking the cable in the presence of steam at a superatmospheric pressure. Preferably the crosslinking is carried out with saturated steam in a vulcanising tube at about 0.8-1.2 MPa and 170-190°C.