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公开(公告)号：EP1425146B1
公开(公告)日：2010-09-22
申请号：EP02747137.4
申请日：2002-08-13
申请人： Bühler AG
CPC分类号： F26B3/08 , B01D9/0031 , B01J8/1836 , B01J8/26 , B01J8/34 , B01J8/36 , B01J8/44 , B01J2208/0053 , B01J2208/00557 , B01J2208/00619 , B01J2208/00672 , B01J2208/00681 , B01J2208/0084 , B01J2208/00884 , B29B13/021 , B29K2067/00 , B29K2995/0041 , C08G63/88
摘要： The invention relates to a device (1) for continuous heat treatment of granulated materials, especially to the crystallization of polymer granulate, such as polyethylenterephthalate (PET) for example. The device comprises several adjacent fluidization chambers (2, 3, 4, 5, 6) respectively provided with a sieve plate (11) through which a fluidization gas used to fluidize the granulate can be insufflated into the respective chamber from below via a gas inlet (9), said gas being able to escape via a gas outlet (10) in the top area of the device. The first chamber (2) takes up the greater part of the overall volume of all chambers (2, 3, 4, 5, 6) and neighbouring chambers are, respectively, fluidically connected by means of product throughflow openings (18, 19, 20, 21; 28, 29, 30, 31) in the separating walls (14, 15, 16, 17) arranged therebetween. According to the inventive method, using the inventive device (1), the granulated material is guided through several adjacent fluidization chambers (2, 3, 4, 5, 6), the absolute filling level of the fluidized granulating material in the first chamber (2) being at least as high as the absolute filling level of the other adjacent chambers (3, 4, 5, 6) disposed downstream therefrom.
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2.发明公开
公开(公告)号：EP1373360A1
公开(公告)日：2004-01-02
申请号：EP01905567.2
申请日：2001-02-26
申请人： Bühler AG
CPC分类号： C08G63/88 , C08G63/785 , C08G63/80
摘要： The invention relates to a method and device for the continuous polycondensation of polyester material in the solid phase, in particular in the form of partially crystalline granulate. The aim of the invention is to achieve a high product throughput on recrystallising and recondensation of polyester material with a low initial IV. Said aim is achieved, whereby on recrystallisation, a low residence time of 1-10 minutes is achieved, by means of a rapid heating of a thin product layer, followed by an SSP treatment.
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公开(公告)号：EP1156914A1
公开(公告)日：2001-11-28
申请号：EP99973667.1
申请日：1999-12-03
申请人： BÜHLER AG
CPC分类号： B29B9/06 , B29B13/021 , B29B17/00 , B29C47/0011 , B29C71/0063 , B29K2067/00 , B29K2105/26 , C08G63/80 , C08G63/88 , Y02W30/62 , Y10S264/92
摘要： In a process for upgrading cleaned used plastic material to be reclaimed, all steps are performed in a continuous way so as to extrude continuously the plastic material to provide elongated strands thereof, cutting the strands continuously as they are supplied by extrusion to convert them into pellets. Then, the pellets are fed without any intermediate storage to a continuous crystallizer in a stream of hot gas to heat the pellets to crystallizing temperature.
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公开(公告)号：EP1156914B1
公开(公告)日：2007-03-14
申请号：EP99973667.1
申请日：1999-12-03
申请人： Bühler AG
CPC分类号： B29B9/06 , B29B13/021 , B29B17/00 , B29C47/0011 , B29C71/0063 , B29K2067/00 , B29K2105/26 , C08G63/80 , C08G63/88 , Y02W30/62 , Y10S264/92
摘要： In a process for upgrading cleaned used plastic material to be reclaimed, all steps are performed in a continuous way so as to extrude continuously the plastic material to provide elongated strands thereof, cutting the strands continuously as they are supplied by extrusion to convert them into pellets. Then, the pellets are fed without any intermediate storage to a continuous crystallizer in a stream of hot gas to heat the pellets to crystallizing temperature.
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公开(公告)号：EP1425146A2
公开(公告)日：2004-06-09
申请号：EP02747137.4
申请日：2002-08-13
申请人： Bühler AG
CPC分类号： F26B3/08 , B01D9/0031 , B01J8/1836 , B01J8/26 , B01J8/34 , B01J8/36 , B01J8/44 , B01J2208/0053 , B01J2208/00557 , B01J2208/00619 , B01J2208/00672 , B01J2208/00681 , B01J2208/0084 , B01J2208/00884 , B29B13/021 , B29K2067/00 , B29K2995/0041 , C08G63/88
摘要： The invention relates to a device (1) for continuous heat treatment of granulated materials, especially to the crystallization of polymer granulate, such as polyethylenterephthalate (PET) for example. The device comprises several adjacent fluidization chambers (2, 3, 4, 5, 6) respectively provided with a sieve plate (11) through which a fluidization gas used to fluidize the granulate can be insufflated into the respective chamber from below via a gas inlet (9), said gas being able to escape via a gas outlet (10) in the top area of the device. The first chamber (2) takes up the greater part of the overall volume of all chambers (2, 3, 4, 5, 6) and neighbouring chambers are, respectively, fluidically connected by means of product throughflow openings (18, 19, 20, 21; 28, 29, 30, 31) in the separating walls (14, 15, 16, 17) arranged therebetween. According to the inventive method, using the inventive device (1), the granulated material is guided through several adjacent fluidization chambers (2, 3, 4, 5, 6), the absolute filling level of the fluidized granulating material in the first chamber (2) being at least as high as the absolute filling level of the other adjacent chambers (3, 4, 5, 6) disposed downstream therefrom.
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6.发明授权
公开(公告)号：EP1373360B1
公开(公告)日：2008-10-15
申请号：EP01905567.2
申请日：2001-02-26
申请人： Bühler AG
CPC分类号： C08G63/88 , C08G63/785 , C08G63/80
摘要： The invention relates to a method and device for the continuous polycondensation of polyester material in the solid phase, in particular in the form of partially crystalline granulate. The aim of the invention is to achieve a high product throughput on recrystallising and recondensation of polyester material with a low initial IV. Said aim is achieved, whereby on recrystallisation, a low residence time of 1-10 minutes is achieved, by means of a rapid heating of a thin product layer, followed by an SSP treatment.
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公开(公告)号：EP1401911B1
公开(公告)日：2005-12-07
申请号：EP02704541.8
申请日：2002-03-26
申请人： Bühler AG
IPC分类号： C08G63/80 , C08G63/91 , C08L101/00 , C08L101/08 , C08L101/02 , C08L67/00 , C08G81/00 , C08L67/02 , C08G81/02 , C08G83/00
CPC分类号： C08L101/005 , C08L67/02 , C08L2666/02
摘要： The invention relates to a method for producing a modified polyester having improved rheological and mechanical properties. Said method is characterised in that a polyester is mixed with a hyperbranched polymer (HBP), they are then melted down, the melted mixture is cooled to form a solid, and the solid mixture is then subjected to a solid phase postcondensation. The invention also relates to a product which is produced according to said method, said postcondensed mixture being processed to form the product in a further step of the method.
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公开(公告)号：EP1401911A1
公开(公告)日：2004-03-31
申请号：EP02704541.8
申请日：2002-03-26
申请人： Bühler AG
IPC分类号： C08G63/80 , C08G63/91 , C08L101/00 , C08L101/08 , C08L101/02 , C08L67/00 , C08G81/00 , C08L67/02 , C08G81/02 , C08G83/00
CPC分类号： C08L101/005 , C08L67/02 , C08L2666/02
摘要： The invention relates to a method for producing a modified polyester having improved rheological and mechanical properties. Said method is characterised in that a polyester is mixed with a hyperbranched polymer (HBP), they are then melted down, the melted mixture is cooled to form a solid, and the solid mixture is then subjected to a solid phase postcondensation. The invention also relates to a product which is produced according to said method, said postcondensed mixture being processed to form the product in a further step of the method.
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公开(公告)号：EP1144169B1
公开(公告)日：2003-08-13
申请号：EP00900015.9
申请日：2000-01-04
申请人： BÜHLER AG
CPC分类号： B29B13/021 , B29C71/0063 , B29K2067/00 , Y10T117/10
摘要： The invention relates to a method for treating plastic material, especially polyethylene terephthalate, wherein the relatively low temperature material is initially crystallized by heating before subjecting said material to heating or condensation in the solid phase. The material is then exposed to a hot treatment gas for at least 10 minutes in at least two chambers (2) of an apparatus and crystallized at a temperature above 135° C, e.g. 140-180° C. The material is subsequently heated in a preheating chamber (3) having at least one to eight stages at a temperature of at least 185° C, preferably at least 200° C and more preferably around 220° C.
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公开(公告)号：EP1234001A1
公开(公告)日：2002-08-28
申请号：EP00947735.7
申请日：2000-08-09
申请人： Bühler AG
IPC分类号： C08J11/06 , C08J11/08 , B29B17/02 , B29B17/00 , B29B13/02 , B29B13/06 , C08G63/80 , C08G63/90 , C08G63/89
CPC分类号： B29B17/02 , B29B2017/0203 , B29B2017/0279 , B29K2027/06 , B29K2067/003 , B29K2067/006 , B29K2077/00 , B29K2105/065 , B29L2031/7158 , C08G63/80 , C08G63/90 , C08J11/06 , Y02W30/622 , Y02W30/701 , Y10T428/1321
摘要： The invention relates to a method and to a device for decontaminating polycondensates such as RPET or similar polymer materials, especially granules derived from PET bottles. The aim of the invention is to simplify the recycling processes known in the art. To this end, the used PET articles are reduced to flakes and said flakes are cleaned. The flakes are directly and continuously decontaminated in the hot gas flow.
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