CN1447829A - 制造聚碳酸酯的方法以及其制品 - Google Patents
制造聚碳酸酯的方法以及其制品 Download PDFInfo
- Publication number
- CN1447829A CN1447829A CN01814449A CN01814449A CN1447829A CN 1447829 A CN1447829 A CN 1447829A CN 01814449 A CN01814449 A CN 01814449A CN 01814449 A CN01814449 A CN 01814449A CN 1447829 A CN1447829 A CN 1447829A
- Authority
- CN
- China
- Prior art keywords
- polycarbonate
- goods
- melt
- phenol
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 47
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims description 34
- 239000006200 vaporizer Substances 0.000 claims description 7
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 14
- 229930185605 Bisphenol Natural products 0.000 description 12
- 238000005406 washing Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- -1 alkali metal salt Chemical class 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- 238000005809 transesterification reaction Methods 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005501 phase interface Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 229940106691 bisphenol a Drugs 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- JXDYKVIHCLTXOP-UHFFFAOYSA-N isatin Chemical compound C1=CC=C2C(=O)C(=O)NC2=C1 JXDYKVIHCLTXOP-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- YIYBRXKMQFDHSM-UHFFFAOYSA-N 2,2'-Dihydroxybenzophenone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1O YIYBRXKMQFDHSM-UHFFFAOYSA-N 0.000 description 1
- DFOLZQISJZKWBT-UHFFFAOYSA-N 2,3-dihydro-1h-indene;phenol Chemical compound OC1=CC=CC=C1.OC1=CC=CC=C1.C1=CC=C2CCCC2=C1 DFOLZQISJZKWBT-UHFFFAOYSA-N 0.000 description 1
- OITMBHSFQBJCFN-UHFFFAOYSA-N 2,5,5-trimethylcyclohexan-1-one Chemical compound CC1CCC(C)(C)CC1=O OITMBHSFQBJCFN-UHFFFAOYSA-N 0.000 description 1
- VXHYVVAUHMGCEX-UHFFFAOYSA-N 2-(2-hydroxyphenoxy)phenol Chemical compound OC1=CC=CC=C1OC1=CC=CC=C1O VXHYVVAUHMGCEX-UHFFFAOYSA-N 0.000 description 1
- QUWAJPZDCZDTJS-UHFFFAOYSA-N 2-(2-hydroxyphenyl)sulfonylphenol Chemical compound OC1=CC=CC=C1S(=O)(=O)C1=CC=CC=C1O QUWAJPZDCZDTJS-UHFFFAOYSA-N 0.000 description 1
- CJWNFAKWHDOUKL-UHFFFAOYSA-N 2-(2-phenylpropan-2-yl)phenol Chemical compound C=1C=CC=C(O)C=1C(C)(C)C1=CC=CC=C1 CJWNFAKWHDOUKL-UHFFFAOYSA-N 0.000 description 1
- KYGLCUAXJICESS-UHFFFAOYSA-N 2-[2,3-di(propan-2-yl)phenyl]phenol Chemical compound CC(C)C1=CC=CC(C=2C(=CC=CC=2)O)=C1C(C)C KYGLCUAXJICESS-UHFFFAOYSA-N 0.000 description 1
- KTFJPMPXSYUEIP-UHFFFAOYSA-N 3-benzoylphthalic acid Chemical compound OC(=O)C1=CC=CC(C(=O)C=2C=CC=CC=2)=C1C(O)=O KTFJPMPXSYUEIP-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HTLZVHNRZJPSMI-UHFFFAOYSA-N N-ethylpiperidine Chemical compound CCN1CCCCC1 HTLZVHNRZJPSMI-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- 239000006085 branching agent Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- IMHDGJOMLMDPJN-UHFFFAOYSA-N dihydroxybiphenyl Natural products OC1=CC=CC=C1C1=CC=CC=C1O IMHDGJOMLMDPJN-UHFFFAOYSA-N 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 125000005027 hydroxyaryl group Chemical group 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/40—Post-polymerisation treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/40—Post-polymerisation treatment
- C08G64/406—Purifying; Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
本发明涉及由聚碳酸酯制造制品的方法及该制品本身。
Description
本发明涉及自聚碳酸酯制造制品的改进方法和这样制造的制品本身。
为了通过所谓的相界面法制造聚碳酸酯,使二羟基二芳基烷烃以其碱金属盐的形式、在诸如氢氧化钠溶液之类的无机碱和有机溶剂存在下,与光气进行非均相反应,所述有机溶剂是聚碳酸酯产物在其中可迅速溶解的。在反应期间,水相分布在有机相中,并且在反应之后用含水液体洗涤含聚碳酸酯的有机相,这样做意欲除去尤其是电解质,并且在此之后分离出洗涤液体。
在进一步加工过程中,除去溶剂,最后得到粒状聚碳酸酯,以便以后进一步加工成产品,例如,磁光制品,特别是激光可读数据贮存器,汽车工业用前灯灯玻璃、光学透镜、聚碳酸酯片材、薄膜等等。为了制造这些制品,必须再将粒料熔融,进一步加工熔体,例如,通过注塑工艺或挤塑工艺,这取决于所需要的制品。
同样,将通过熔体酯交换法制造的聚碳酸酯首先加工成颗粒,在该法中双酚与碳酸二芳基酯在熔融状态下反应释出羟芳基物;然后必须再将粒料熔融,以便通过诸如注塑工艺或挤塑工艺进行进一步加工。
本发明的目的是借助于改进的制造方法改进聚碳酸酯制品的质量。令人惊异的是,通过使聚碳酸酯熔体直接进入制造过程中,而不预先进行造粒,实现了这一目的;当然,在该加工之前,还可进行其它传统提纯步骤,例如,过滤。减少材料所受热应力,能够改进制品的质量。另外,省去额外的加工步骤也能够达到提供更简单和相应地更有效的制造聚碳酸酯制品的方法的目的。
本发明首先提供一种制造聚碳酸酯制品的方法,其中,通过相界面法得到的聚碳酸酯溶液用含水洗涤液来洗涤,分离出洗涤液,蒸发出溶剂,和其中,在除去洗涤液后得到的、有机聚碳酸酯溶液和残余洗涤液的混合物经间接热交换加热,以便得到透明溶液,并且经过过滤以便分离出固体物质,以及然后
A)在第一步中,以一个或多个单独步骤,将聚合物含量为5~20重量%的溶液浓缩成60~75重量%的溶液,所述步骤采用管壳式热交换器和薄膜蒸发器或者盘管蒸发器的组合,或者采用管壳式热交换器,在150℃~250℃下进行,在每种情况下具有下游分离器,分离器压力为约0.1~0.4MPa,优选为环境压力(即约0.1MPa);
B)在下一步中,将所得溶液从60~75重量%浓缩到至少95重量%,尤其是到98~99.9重量%,该步骤采用具有下游分离器的管壳式热交换器在250℃~350℃下进行,管壳式热交换器装有竖直加热直管,有或没有内置静态混合器,直管内径5~30mm,优选为5~15mm,长度为0.5~4m,优选为1~2m,穿过这些管的每个热交换器管的物料通过量为0.5~10kg/h,优选为3~7kg/h,以聚合物为基准计,分离器内的压力为0.5kPa至0.1MPa,尤其为3kPa至0.1kPa,优选为3kPa至10kPa;
C)在第三步中,除去溶液中的剩余溶剂和/或其它挥发性组分,直至溶剂和其它挥发性组分的含量为5~500,该步骤采用另外的管壳式热交换器或挤出式蒸发器,在250℃至350℃、特别是260℃至320℃、最特别优选270℃至310℃、理想的是在280至290℃下进行,管壳式热交换器装有竖直加热直管,其内径为5~30mm,优选为10~20mm,长度为0.2~2m,优选为0.5~1m,穿过这些管的每个热交换器管的物料通过量为0.5~10kg/h,优选为3~7kg/h,以聚合物为基准计,分离器内的压力为0.05kPa至0.1MPa,优选为0.1kPa至2kPa;和直接采用该熔体制造聚碳酸酯制品。
在直接应用熔体的情况下,在C)中给出的温度是有利的,因为该温度明显低于在该步骤中传统采用的借助于挤出机进行的最后蒸发期间所具有的温度;结果制品所受热应力较低,因此制品质量也较高。省去了传统的粒料再熔融不仅简化了工序,而且制品所受热应力较低,因此改善了制品质量。
另外,自传统蒸发工艺,例如采用挤出式蒸发器,得到的聚碳酸酯熔体也能够直接进行进一步加工,其中任选将熔体冷却至适宜温度。同样地,自熔体酯交换法得到的聚碳酸酯熔体也能够直接进行进一步加工,其中任选将熔体冷却至适宜温度。
尽管在A和B中所用的蒸发器系统属市售设备,在步骤C中所遵循的温度需要使用特殊蒸发设备。依熔体进一步加工成的制品,诸如制造聚碳酸酯片材,使用一个蒸发器也就足够了。在以前未发表的德国专利申请No 19957458.8中,作为非限制性实例提出了管式蒸发器和挤出蒸发器均适用于此目的。
按照本发明,术语“聚碳酸酯”包括均聚碳酸酯和共聚碳酸酯以及其混合物。按照本发明的聚碳酸酯可以是芳族聚酯碳酸酯或者与芳族聚酯碳酸酯的混合物形式的聚碳酸酯。下文将使用术语“聚碳酸酯”来代替上文所述的聚合物。
按照本发明的聚碳酸酯通过所谓的相界面法来得到(H.Schnell,“Chemistry and Physics of Polycarbonates”,Polymerreview,Vol.IXS,从22起,Interscience Publishers,New York 1964),其中含有聚碳酸酯的溶液随后采用洗涤液洗涤,分离出洗涤液,并对所得溶液进行蒸发。
另外,聚碳酸酯也可通过所谓的熔体酯交换法得到(D.G.LeGrand等,“Handbook of Polycarbonate Science and Technolygy”,Marcel Dekker Verlag,New York,Basel,2000,从12起)。
各个生产方法最终得到的熔体不再造粒,而是直接进一步加工成最终产品。
按照本发明作为起始化合物优选使用的化合物是双酚,其通式为HO-Z-OH,其中Z是二价有机基,其含有6~30个碳原子,含有一个或多个芳族基团。这些化合物的例子是包括下述的双酚,如二羟基联苯、双(二羟基苯基)烷烃、二氢化茚双酚、双(羟苯基)醚、双(羟苯基)砜、双(羟苯基)酮和α,α’-双(羟苯基)二异丙基苯。
属于上述化合物的特别优选的双酚是2,2-双-(4-羟苯基)-丙烷(双酚-A)、四烷基双酚-A、4,4-(间亚苯基二异丙基)联苯酚(双酚M)、1,1-双-(4-羟苯基)-3,3,5-三甲基环己酮以及其任选混合物。特别优选的共聚碳酸酯是以双酚-A和1,1-双-(4-羟苯基)-3,3,5-三甲基环己烷单体为基础的那些。使按照本发明使用的双酚化合物与碳酸的化合物,尤其是光气和碳酸二苯酯进行反应。
按照本发明的聚酯碳酸酯借助于上文已经叙述的双酚、至少一种芳族二羧酸和任选碳酸的反应来得到。适宜的芳族二羧酸是,例如,邻苯二甲酸、对苯二甲酸、间苯二甲酸、3,3’-或4,4’-联苯二甲酸和二苯甲酮二甲酸。
在本方法中使用的惰性有机溶剂优选是二氯甲烷或者二氯甲烷和氯苯的混合物。
所述反应可通过催化剂,例如叔胺、N-烷基哌啶或鎓盐加速。优选使用三丁胺、三乙胺和N-乙基哌啶。单官能酚如苯酚、异丙苯基苯酚、对叔丁基苯酚或4-(1,1,3,3-四甲基丁基)苯酚能够用作链终止剂和摩尔质量控制剂。诸如靛红双甲酚能够用作支化剂。
为了按照本发明通过相界面法制造高质量聚碳酸酯,将双酚溶解在含水碱相中,优选氢氧化钠溶液中。将生产共聚碳酸酯任选需要的链终止剂溶解在含水碱相中,其量为每摩尔双酚1.0~20.0mol%,或者以在惰性有机相中的固体形式加入到后者中。然后将光气通入到含有其它反应组分的混合器中,并进行聚合反应。
在聚碳酸酯中至多80mol%,优选20~50mol%的碳酸酯基团部分,可被芳族二羧酸酯基团所代替。
在本发明的另一实施方案中,热塑性聚碳酸酯具有平均分子量Mw,外来粒子指数小于2.5·104μm2/g。钠含量优选小于30ppb,以原子吸收光谱测定。
在反应期间,将水相乳化在有机相中。在该过程中,形成了不同尺寸的液滴。在反应之后,将含有聚碳酸酯的有机相通常用含水液体洗涤数次,并且在每次洗涤之后尽可能分出水相。用稀的无机酸如HCl或H3PO4作洗涤液以分离催化剂,并用软化水来进一步提纯。在洗涤液中的HCl或H3PO4的浓度可以是,例如,0.5~1.0重量%。
原则上已知分离容器、相分离器、离心机或聚结器,或者这些设备的组合均能够用作相分离设备以从有机相中除去洗涤液。
将上述A至C步中的溶剂蒸发出,以得到高纯度聚碳酸酯。
除了所述LPC方法(溶液聚碳酸酯法)之外,SPC方法(熔体酯交换法)也可用来生产聚碳酸酯熔体。
在熔体酯交换法中,例如以二步法,自芳族双酚、碳酸二基芳酯和催化剂,在温度为80℃至320℃,压力为1000mbar至0.01mbar下生产聚碳酸酯,在该法低聚碳酸酯合成的第一步中,引入季铵化合物和/或鏻化合物,其量以1mol双酚为基准计为10-4~10-8mol,在第一步中在80℃~180℃下,优选在100℃~150℃、大气压下熔融反应物至多5小时,优选0.25~3小时,在加入催化剂、抽真空(1bar~0.5mbar)并升温(至290℃)之后,通过蒸馏出单酚得到低聚碳酸酯。在第二步中,加入以1mol双酚为基准计的10-4~10-8mol碱金属盐和碱土金属盐,在240℃~320℃下,优选在260℃~300℃下,在压力小于500mbar至0.01mbar下,使所得低聚碳酸酯在短时间(<3小时)内缩聚形成聚碳酸酯。
正如自上文可以了解的那样,熔体酯交换法在不存在溶剂的条件下实施。因此,与溶液聚碳酸酯法不同,该法不需要管形蒸发器/挤出式蒸发器或挤出机。
然后将如此通过不同方法得到的聚碳酸酯熔体进一步直接加工成所需的制品,而不再经诸如造粒和再熔融之类的中间步骤;在该加工之前,当然可进行诸如过滤之类的其它传统提纯步骤。
这些制品可通过诸如注塑、挤塑或流延(薄膜)工艺来制造。这些制品的非限制性例子包括温室玻璃用的、具有双壁片材或中空片材的聚碳酸酯片材,实体片材,磁光数据存贮器/微型盘、高密盘、DVD、光学透镜和棱镜、光学纤维、汽车玻璃、前灯、薄膜、医疗设备、包装(如用于食品和医疗制品等),电气制品和电子制品外壳(如计算机外壳、移动电话零件等),眼镜片和眼镜架、家庭用品(例如电气制品、如熨斗等)、玩具等。
按照本发明的方法特别适于制造必须满足在光学质量方面高标准,即透明度和无色方面的制品;例如温室和汽车玻璃、前灯、磁光数据贮存器/微型盘、高密盘、DVD、光学透镜和棱镜、光学纤维、眼镜片等。
按照本发明的方法非常适于制造温室、汽车和前灯玻璃。
另一种非常适宜的用途是制造磁光数据贮存器/微型盘、高密盘和DVD。
再一个非常适宜的用途是制造光学透镜和棱镜、光学纤维和眼镜片。
数据载体的优选分子量范围为12,000至22,000,透镜和玻璃的为22,000至32,000,实体片材和中空片材的为28,000至40,000。关于分子量的所有数据均指摩尔质量的重均数值。
Claims (4)
1.自聚碳酸酯制造制品的方法,其特征在于:将在制造聚碳酸酯期间生成的聚碳酸酯熔体直接加工成制品,而不经过额外的中间步骤。
2.按照权利要求1的方法,其特征在于:在制造聚碳酸酯中的最后一步借助于一个或多个管式蒸发器或者挤出式蒸发器进行脱气。
3.由聚碳酸酯制造的制品,其特征在于:其可按照权利要求1的方法得到。
4.由聚碳酸酯制造的制品,其特征在于:其是按照权利要求1的方法制造的。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10052873A DE10052873A1 (de) | 2000-08-23 | 2000-08-23 | Verfahren zur Herstellung von Polycarbonat und Produkten daraus |
DE10052873.2 | 2000-08-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1447829A true CN1447829A (zh) | 2003-10-08 |
CN100338114C CN100338114C (zh) | 2007-09-19 |
Family
ID=7661010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018144497A Expired - Fee Related CN100338114C (zh) | 2000-08-23 | 2001-08-10 | 制造聚碳酸酯的方法以及其制品 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20020074683A1 (zh) |
EP (1) | EP1313791A1 (zh) |
JP (1) | JP2004512390A (zh) |
KR (1) | KR100725203B1 (zh) |
CN (1) | CN100338114C (zh) |
AU (1) | AU2001287671A1 (zh) |
BR (1) | BR0113405A (zh) |
DE (1) | DE10052873A1 (zh) |
TW (1) | TW591052B (zh) |
WO (1) | WO2002016470A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE516316T1 (de) | 2008-02-13 | 2011-07-15 | Bayer Materialscience Ag | Verfahren zur herstellung von polycarbonaten |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59166506A (ja) * | 1983-03-14 | 1984-09-19 | Mitsui Toatsu Chem Inc | 重合液組成物の連続的脱揮発方法 |
DE3930673A1 (de) * | 1989-09-14 | 1991-03-28 | Bayer Ag | Stabilisierte polycarbonate |
DE4100201A1 (de) * | 1991-01-05 | 1992-07-09 | Bayer Ag | Verfahren zum verschaeumen von thermoplastischen polycarbonaten |
DE4446266C1 (de) * | 1994-12-23 | 1996-08-14 | Krupp Vdm Gmbh | Nickellegierung |
US5777064A (en) * | 1995-03-22 | 1998-07-07 | Mitsubishi Gas Chemical Company, Inc. | Production method of polycarbonate |
SG52902A1 (en) * | 1996-01-16 | 1998-09-28 | Asahi Chemical Ind | Polycarbonate pellet and method for producing the same |
MY119540A (en) * | 1998-04-24 | 2005-06-30 | Ciba Spacialty Chemicals Holding Inc | Increasing the molecular weight of polyesters |
DE19835744A1 (de) * | 1998-08-07 | 2000-02-17 | Bayer Ag | Verfahren zum Eindampfen von Polymerlösungen thermoplastischer Polymere |
US6420512B1 (en) * | 2001-07-24 | 2002-07-16 | General Electric Company | Extrusion method for making polycarbonate |
-
2000
- 2000-08-23 DE DE10052873A patent/DE10052873A1/de not_active Withdrawn
-
2001
- 2001-08-10 CN CNB018144497A patent/CN100338114C/zh not_active Expired - Fee Related
- 2001-08-10 BR BR0113405-1A patent/BR0113405A/pt not_active IP Right Cessation
- 2001-08-10 AU AU2001287671A patent/AU2001287671A1/en not_active Abandoned
- 2001-08-10 WO PCT/EP2001/009245 patent/WO2002016470A1/de active Application Filing
- 2001-08-10 EP EP01967254A patent/EP1313791A1/de not_active Withdrawn
- 2001-08-10 JP JP2002521563A patent/JP2004512390A/ja not_active Withdrawn
- 2001-08-20 TW TW090120328A patent/TW591052B/zh not_active IP Right Cessation
- 2001-08-20 US US09/933,360 patent/US20020074683A1/en not_active Abandoned
-
2003
- 2003-02-22 KR KR1020037002623A patent/KR100725203B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU2001287671A1 (en) | 2002-03-04 |
KR20030029841A (ko) | 2003-04-16 |
US20020074683A1 (en) | 2002-06-20 |
EP1313791A1 (de) | 2003-05-28 |
DE10052873A1 (de) | 2002-03-07 |
CN100338114C (zh) | 2007-09-19 |
JP2004512390A (ja) | 2004-04-22 |
TW591052B (en) | 2004-06-11 |
KR100725203B1 (ko) | 2007-06-07 |
BR0113405A (pt) | 2003-07-08 |
WO2002016470A1 (de) | 2002-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0403657B1 (en) | A porous, crystallized, aromatic polycarbonate prepolymer, a porous, crystallized aromatic polycarbonate, and production methods | |
KR100799033B1 (ko) | 폴리카르보네이트의 제조방법 | |
CN1198866C (zh) | 纯化聚碳酸酯的方法 | |
TWI492960B (zh) | 烷基酚-封端的共聚碳酸酯,其製備方法,包含其之模製組成物,及由其製得之物件 | |
JP5329181B2 (ja) | 溶融エステル交換法によるポリカーボネートの製造方法 | |
JP4359396B2 (ja) | ポリカーボネートを含む溶液の精製法 | |
TWI224118B (en) | High purity polymer pellets and process for the production thereof | |
KR101615756B1 (ko) | 폴리카르보네이트 및 디아릴 카르보네이트의 제조 방법 | |
JP2011511869A (ja) | 分子量調節用アルキルフェノールおよび特性が改良されたポリカーボネート組成物 | |
CN100338114C (zh) | 制造聚碳酸酯的方法以及其制品 | |
CN1207320C (zh) | 聚碳酸酯基质 | |
KR20080042034A (ko) | 용매 캐스트 필름의 제조에 유용한 폴리카보네이트 | |
KR20010079634A (ko) | 고순도 폴리카르보네이트 및 그의 제조 방법 | |
RU2132339C1 (ru) | Способ получения поликарбоната | |
TW200304921A (en) | Recycle process for polycondensation resins | |
WO2008051849A1 (en) | Tert-butylhydroquinone polycarbonates | |
JP2002265590A (ja) | 低分子量芳香族ポリカーボネートの結晶化方法 | |
JP2004256724A (ja) | 芳香族ポリカーボネート原料の調製方法および芳香族ポリカーボネートの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1059627 Country of ref document: HK |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1059627 Country of ref document: HK |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20100810 |