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公开(公告)号：DE2860065D1
公开(公告)日：1980-11-13
申请号：DE2860065
申请日：1978-07-24
Applicant: BASF AG
Inventor： GUHR UWE DR , MOELLER ROLF DR , STAHNECKER ERHARD DR , KNIESE WILHELM DR
IPC: C08F257/02 , C08J9/20
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公开(公告)号：DE59010707D1
公开(公告)日：1997-05-28
申请号：DE59010707
申请日：1990-09-14
Applicant: BASF AG
Inventor： HAHN KLAUS DR , GUHR UWE DR , HINTZ HANS DR , WITTENBERG DIETMAR DR
Abstract: Expandable styrene polymers containing a) 80 to 99% by weight of polystyrene, b) 1 to 20% by weight of a styrene-soluble polymer having a softening temperature above 140 DEG C, c) 3 to 10% by weight, based on the sum of a) and b), of a C3- to C6-hydrocarbon as a blowing agent, and optionally d) conventional additives, in which the mixture of components a) and b) has a melt flow index MFI 200/5 of between 15 and 30, are distinguished by high heat distortion resistance and good expandability.
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公开(公告)号：DE59106887D1
公开(公告)日：1995-12-21
申请号：DE59106887
申请日：1991-04-25
Applicant: BASF AG
Inventor： WITTENBERG DIETMAR DR , HAHN KLAUS DR , GUHR UWE DR , HINTZ HANS DR , O'CALLAGHAN MICHAEL P DR , RIETHUES MICHAEL DR
IPC: C08F2/44 , C08F2/18 , C08J9/00 , C08J9/16 , C08K5/00 , C08K5/01 , C08K5/05 , C08K5/06 , C08K5/36 , C08K5/41 , C08L25/04 , C08L33/00
Abstract: Expandable styrene polymers containing …… a) a styrene polymer, … b) from 0.05 to 3 % by weight, based on a), of water, … c) from 0.001 to 1 % by weight, based on a), of a finely divided organic polymer having a water-absorption capacity of at least 10 g/g, … d) from 0.5 to 8 % by weight, based on a), of a C3- to C6-hydrocarbon, and optionally … e) conventional additives in effective amounts, … are distinguished by good flow properties and a low degree of clumping during prefoaming.
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公开(公告)号：AT130332T
公开(公告)日：1995-12-15
申请号：AT91106672
申请日：1991-04-25
Applicant: BASF AG
Inventor： WITTENBERG DIETMAR DR , HAHN KLAUS DR , GUHR UWE DR , HINTZ HANS DR , O'CALLAGHAN MICHAEL P DR , RIETHUES MICHAEL DR
IPC: C08F2/44 , C08F2/18 , C08J9/00 , C08J9/16 , C08K5/00 , C08K5/01 , C08K5/05 , C08K5/06 , C08K5/36 , C08K5/41 , C08L25/04 , C08L33/00 , C08L25/00
Abstract: Expandable styrene polymers containing …… a) a styrene polymer, … b) from 0.05 to 3 % by weight, based on a), of water, … c) from 0.001 to 1 % by weight, based on a), of a finely divided organic polymer having a water-absorption capacity of at least 10 g/g, … d) from 0.5 to 8 % by weight, based on a), of a C3- to C6-hydrocarbon, and optionally … e) conventional additives in effective amounts, … are distinguished by good flow properties and a low degree of clumping during prefoaming.
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公开(公告)号：ES2066087T3
公开(公告)日：1995-03-01
申请号：ES90120352
申请日：1990-10-24
Applicant: BASF AG
Inventor： HINTZ HANS DR , GUHR UWE DR , HAHN KLAUS DR
Abstract: In the preparation of expandable styrene polymers by polymerizing styrene, if desired together with up to 50% by weight of other monomers, in aqueous suspension with addition of a C3- to C6-hydrocarbon as blowing agent and, if desired, conventional additives in effective amounts before, during or after the polymerization, foaming is reduced if the aqueous phase contains from 0.05 to 0.3% by weight of polyvinylpyrrolidone having a K value of from 100 to 150 as protective colloid.
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Patent Agency Ranking
公开(公告)号：AT116346T
公开(公告)日：1995-01-15
申请号：AT90120352
申请日：1990-10-24
Applicant: BASF AG
Inventor： HINTZ HANS DR , GUHR UWE DR , HAHN KLAUS DR
IPC: C08J9/14 , C08F2/18 , C08F2/20 , C08F2/44 , C08F12/08 , C08F212/00 , C08J9/18 , C08J9/20 , C08L25/04
Abstract: In the preparation of expandable styrene polymers by polymerizing styrene, if desired together with up to 50% by weight of other monomers, in aqueous suspension with addition of a C3- to C6-hydrocarbon as blowing agent and, if desired, conventional additives in effective amounts before, during or after the polymerization, foaming is reduced if the aqueous phase contains from 0.05 to 0.3% by weight of polyvinylpyrrolidone having a K value of from 100 to 150 as protective colloid.
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公开(公告)号：AT106917T
公开(公告)日：1994-06-15
申请号：AT90111720
申请日：1990-06-21
Applicant: BASF AG
Inventor： HAHN KLAUS DR , GUHR UWE DR , HINTZ HANS DR , RICHTER ROLF
Abstract: Bead-form expandable styrene polymers containing a styrene polymer having a mean molecular weight (weight average) of less than 130x103 and a steep high-molecular-weight flank of the molecular-weight distribution curve, and 0.15 to 1.5 mol of a C3- to C6-hydrocarbon as blowing agent, and, if desired, customary additives in effective amounts, are distinguished by a particularly high expansion capacity.
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公开(公告)号：DE59001988D1
公开(公告)日：1993-08-26
申请号：DE59001988
申请日：1990-02-26
Applicant: BASF AG
Inventor： HAHN KLAUS DR , GUHR UWE DR , HINTZ HANS DR
Abstract: Expandable styrene polymers of from 95 to 99.5% by weight of polystyrene and from 0.15 to 5% by weight of a styrene-soluble styrene/acrylonitrile copolymer having a total content of not less than 0.15% by weight of acrylonitrile, which contain from 3 to 10% by weight of a C3-C6-hydrocarbon and may contain conventional additives, give foams which do not shrink. The said styrene polymers can be prepared by suspension polymerization of a solution of the styrene/acrylonitrile copolymer in styrene.
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公开(公告)号：DE58903608D1
公开(公告)日：1993-04-01
申请号：DE58903608
申请日：1989-12-01
Applicant: BASF AG
Inventor： HAHN KLAUS DR , GUHR UWE DR , GELLERT ROLAND DR , BACK WOLF-DIETER DR
Abstract: Polystyrene foam particles having a density of 10 to 30 kg/m are obtained when styrene polymers containing 0.7 to 3 mol/kg of a blowing agent mixture comprising 60 to 90 mol% of water and 10 to 40 mol% of a C4- to C5-hydrocarbon are foamed using microwaves.
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公开(公告)号：AT85984T
公开(公告)日：1993-03-15
申请号：AT89122180
申请日：1989-12-01
Applicant: BASF AG
Inventor： HAHN KLAUS DR , GUHR UWE DR , GELLERT ROLAND DR , BACK WOLF-DIETER DR
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