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公开(公告)号：EP1685187A1
公开(公告)日：2006-08-02
申请号：EP04790185.5
申请日：2004-10-08
申请人： Zimmer AG
发明人： EHRHARDT, Werner
IPC分类号： C08J5/18
CPC分类号： C08J5/18 , C08J2367/02
摘要： The invention relates to a method for producing PET films, according to which a poIyethylene terephthalate melt is transferred to a roller and the resultant film is drawn longitudinally. To produce the polyethylene terephthalate that is present in the melt, a branching agent is used in a concentration of between 50 to 300 ppm, in relation to the total weight of polyethylene terephthalate contained in the melt.
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公开(公告)号：EP1224343B1
公开(公告)日：2006-02-01
申请号：EP00978960.3
申请日：2000-09-29
申请人： Zimmer AG
发明人： BAUER, Ralf-Uwe , KIND, Uwe
CPC分类号： D01F2/00
摘要： The invention relates to a method for producing cellulose shaped bodies such as fibers, filaments or films from TCF- or ECF bleached cellulose wherein cellulose is dissolved in an aqueous tertiary amine oxide to produce a formable cellulose solution. The cellulose solution is shaped and thereby the shaped body is formed by coagulation of the shaped solution. Said method is characterized in that in order to reduce the degree of cellulose degradation, TCF-bleached cellulose having a carboxyl group content in the range of 1 to 35 mu mol/g or ECF-bleached cellulose having a carboxyl group content in the range of 1 to 50 mu mol/g is employed. The inventive method enables said cellulose shaped-bodies to be produced having a reduced degree of cellulose degradation.
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公开(公告)号：EP1487898B1
公开(公告)日：2005-10-19
申请号：EP03704658.8
申请日：2003-02-20
申请人： Zimmer AG
IPC分类号： C08G63/183 , C08K5/00 , C08L67/02
CPC分类号： C08K5/0008 , C08G63/183 , C08G63/78 , C08L67/02 , Y10T428/249921 , Y10T428/2913 , Y10T428/2915 , Y10T428/2924 , C08L77/00
摘要： A composition comprising Polytrimethylene terephthalate (PTT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTT) resin with an effective amount of a melt stable, organic stabilizing compound. Such PTT resin has an acrolein formation rate at 280 °C of less than 15 ppm/minute. Preferably the residual acrolein content of the PTT resin is less than 10 ppm. The additive organic stabilizing compounds are free from nitrogen atoms. Preferred additive compounds include polyfunctional alkohols, alcoholates, aromatic carboxylic acid anhydrides, carboxylic acids and salts of carboxylic acids. The additive compounds are added to the polymer in molten state and/or to the resin, which is then processed to fibers, filaments, non-wovens, films and/or mouldings.
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公开(公告)号：EP1397412B1
公开(公告)日：2005-04-20
申请号：EP02732622.2
申请日：2002-04-16
申请人： Zimmer AG
发明人： SEIDEL, Eckhard , WILHELM, Fritz
IPC分类号： C08G63/78 , C08G63/85 , C08G63/183
CPC分类号： C08G63/183 , C08G63/85
摘要： The invention relates to a method for the production of PBT, whereby a mixture of BDO and TPA are esterified in the presence of a catalyst solution and the esterified product polycondensed. In order to prevent the formation of deposits in the PBT, the catalyst solution contains 0.05 to 10 wt. % alkyl titanate, 85 to 99 wt. % BDO, 50 to 50000 ppm dicarboxylic acids and at most 0.5 wt. % water.
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公开(公告)号：EP1487898A1
公开(公告)日：2004-12-22
申请号：EP03704658.8
申请日：2003-02-20
申请人： Zimmer AG
IPC分类号： C08G63/183 , C08K5/00 , C08L67/02
CPC分类号： C08K5/0008 , C08G63/183 , C08G63/78 , C08L67/02 , Y10T428/249921 , Y10T428/2913 , Y10T428/2915 , Y10T428/2924 , C08L77/00
摘要： A composition comprising Polytrimethylene terephthalate (PTT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTT) resin with an effective amount of a melt stable, organic stabilizing compound. Such PTT resin has an acrolein formation rate at 280 °C of less than 15 ppm/minute. Preferably the residual acrolein content of the PTT resin is less than 10 ppm. The additive organic stabilizing compounds are free from nitrogen atoms. Preferred additive compounds include polyfunctional alkohols, alcoholates, aromatic carboxylic acid anhydrides, carboxylic acids and salts of carboxylic acids. The additive compounds are added to the polymer in molten state and/or to the resin, which is then processed to fibers, filaments, non-wovens, films and/or mouldings.
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公开(公告)号：EP1259564B1
公开(公告)日：2004-12-01
申请号：EP01953632.5
申请日：2001-01-08
申请人： Zimmer AG
CPC分类号： D02G3/448 , C08K3/26 , C08K3/34 , C08L1/00 , C08L1/02 , C08L5/04 , C08L5/08 , C08L89/00 , C08L2201/06 , D01F1/10 , D01F2/00 , D01F2/06 , D01F2/10 , D03D15/00 , D10B2201/01 , D10B2201/02 , D10B2201/24 , D10B2201/28 , D10B2321/022 , D10B2321/10 , D10B2331/02 , D10B2331/04 , D10B2501/06 , D10B2503/06 , D10B2505/08 , Y10T428/139 , Y10T428/2913 , Y10T428/2915 , Y10T428/2929 , Y10T442/30 , Y10T442/3146 , Y10T442/637 , Y10T442/696 , Y10T442/699 , C08L2666/02
摘要： The invention relates to a polymer composition, comprising a biologically degradable polymer and a material from marine plants and/or marine animal shells, or at least two components chosen from the group comprising, saccharides and derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention further relates to a moulded body, made from said polymer composition. Said moulded body may be used as packing material or fibre material. In the form of a fibre material said body may be used as a mixture component for the production of yarns, non-woven fabrics or textiles.
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公开(公告)号：EP1125011B1
公开(公告)日：2004-02-11
申请号：EP99969456.5
申请日：1999-09-14
申请人： Zimmer AG
发明人： GUNKEL, Holger , MOOZ, Michael
CPC分类号： C08J3/28 , C08B16/00 , C08J2301/00 , D01F2/00 , D01F13/02 , Y02P70/627
摘要： The invention relates to a method for producing cellulosic forms, such as fibres, filaments, films, membranes or tubes by a) extruding a solution of cellulose in a hydrous amine oxide, especially N-methylmorpholine-N-oxide, through a moulding tool, over an air gap, and coagulating the form in an aqueous precipitating bath containing amine oxide and b) guiding the form through at least one washing stage in order to remove the residual amine oxide. The method is characterised in that the precipitating bath liquid and/or the washing liquid are treated with ultraviolet radiation in the precipitating stage and/or in the washing stage(s) respectively. This prevents the formation and spread of coatings, films and secretions of slime formed by micro-organisms on the parts of the system that come into contact with the NMMO-containing liquor.
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49.发明公开
公开(公告)号：EP1345980A1
公开(公告)日：2003-09-24
申请号：EP01271410.1
申请日：2001-11-27
申请人： Zimmer AG
发明人： REISEN, Michael , WILHELM, Fritz
摘要： The invention relates to a method for the production of polyesters or copolyesters, wherein continuos esterification of dicarboxylic acid esters and diols or continuos interesterification of dicarboxylic acid esters with diols is carried out in n reaction pressure levels connected one after the other, wherein the pressure in the first reaction pressure level, which is higher relative to the other reaction pressure levels, drops successively from one reaction pressure level to the other, the vapor flows of the individual reaction pressure levels are jointly rectified in a rectifying column and the diol components falling to the bottom of the rectifying column are fed back again at least to the first reaction level. In order to reduce the degree of complication of said process, at least the last reaction pressure level has a negative pressure, the pressure in the rectifying column is higher than the pressure in the last reaction pressure level and the vapors coming out of the last reaction pressure level are compressed to the pressure prevailing in the rectifying column.
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公开(公告)号：EP1341837A1
公开(公告)日：2003-09-10
申请号：EP01998580.3
申请日：2001-11-08
申请人： Zimmer AG
发明人： KÄMPF, Rudolf , WILHELM, Fritz
CPC分类号： C08G64/30 , C08G64/205
摘要： The invention relates to polycarbonates, obtained by reacting a monomer carbonate component with at least one diphenol or dialcohol in the presence of a transesterification catalyst. According to the invention, the melted components are mixed with the transesterification catalyst and a transesterification product is obtained that is then subjected to polycondensation. For polycondensation, the transesterification product is passed through a preliminary reactor, at least one intermediate reactor and a final reactor, said reactors being connected in series and having a shaft, on which mixing elements are attached, that is driven in a substantially horizontal manner. A melt residence time of between 5 minutes and 2 hours is maintained in the preliminary reactor and the final reactor, the temperatures in the preliminary reactor are maintained within the range of 220 to 300 °C and the pressure in the preliminary reactor is maintained in the range of 100 to 800 mbar and in the final reactor in the range of 0.1 to 50 mbar.
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