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    • 4. 发明授权
    • Method of preparing modified polyester bottle resins
    • 改性聚酯瓶树脂的制备方法
    • US06284866B1
    • 2001-09-04
    • US09456253
    • 1999-12-07
    • Robert Joseph Schiavone
    • Robert Joseph Schiavone
    • C08G6300
    • C08G63/80Y10T428/1352Y10T428/1397
    • The present invention is a method of preparing a high molecular weight copolyester bottle resin that has excellent melt processing characteristics. The method includes the steps of reacting a diacid or diester component and a diol component to form modified polyethylene terephthalate, wherein diol component is present in excess of stoichiometric proportions. Together, the diacid or diester component and the diol component must include at least 7 percent comonomer. The remainder of the diacid component is terephthalic acid or dimethyl terephthalate and the remainder of the diol component is ethylene glycol. The modified polyethylene terephthalate is copolymerized in the melt phase to an intrinsic viscosity of between about 0.25 dl/g and 0.40 dl/g to thereby form a copolyester prepolymer. Thereafter the copolyester prepolymer is polymerized in the solid phase to form a high molecular weight bottle resin that has an intrinsic viscosity of at least about 0.70 dl/g, and a solid phase density of less than 1.413 g/cc.
    • 本发明是制备具有优异的熔融加工特性的高分子量共聚酯瓶树脂的方法。 该方法包括使二酸或二酯组分和二醇组分反应形成改性聚对苯二甲酸乙二醇酯的步骤,其中二醇组分以超过化学计量比的量存在。 一起,二酸或二酯组分和二醇组分必须包含至少7%的共聚单体。 二酸组分的其余部分是对苯二甲酸或对苯二甲酸二甲酯,剩余的二醇组分是乙二醇。 改性聚对苯二甲酸乙二醇酯在熔融相中共聚至约0.25dl / g至0.40dl / g之间的特性粘度,从而形成共聚酯预聚物。 此后,共聚酯预聚物在固相中聚合以形成特性粘度为至少约0.70dl / g,固相密度小于1.413g / cc的高分子量瓶型树脂。
    • 5. 发明授权
    • Continuous process for the production of segmented elastomer polyester copolymer
    • 用于生产分段弹性体聚酯共聚物的连续工艺
    • US06274696B1
    • 2001-08-14
    • US09659740
    • 2000-09-11
    • Geert I. V. BonteRainer HagenEike Schulz Van Endert
    • Geert I. V. BonteRainer HagenEike Schulz Van Endert
    • C08G6300
    • C08G63/78C08G63/672
    • The invention relates to a continuous process for the preparation of segmented elastomer polyester copolymers that shows greater flexibility with respect to the types and amounts of product to be produced than the known processes. The flexibility is achieved by splitting up a low-molecular PBT product stream from a continuous PBT process and partly using it as feed for the transesterification reaction with the polyalkyleneoxide glycol yielding soft segments to form a low-molecular segmented polyester copolymer, which is subsequently further condensed in the melt or optionally in the solid phase to form high-molecular segmented polyester copolymers. Even greater flexibility can be obtained by operating several parallel production lines for segmented polyester copolymer. Fluctuations in the types of copolyester product to be produced and the amounts thereof are accommodated predominantly in the polycondensation step of the PBT production.
    • 本发明涉及用于制备分段弹性体聚酯共聚物的连续方法,其显示出比已知方法要生产的产品的类型和数量更大的灵活性。通过将低分子PBT产物流 来自连续的PBT方法,并且部分地将其用作与聚环氧烷二醇的酯交换反应的进料,产生软链段以形成低分子链段聚酯共聚物,随后在熔体中或任选地在固相中进一步浓缩, 分子分段的聚酯共聚物。通过操作多个平行的分段聚酯共聚物生产线可以获得更大的柔韧性。待生产的共聚酯产物类型和其用量的影响主要适用于PBT生产的缩聚步骤。
    • 7. 发明授权
    • Method for producing liquid crystalline polyester
    • 液晶聚酯的制造方法
    • US06774203B1
    • 2004-08-10
    • US10130354
    • 2002-05-17
    • Yasuyuki Fukute
    • Yasuyuki Fukute
    • C08G6300
    • C08G63/80C08G63/605
    • The present invention provides a method for producing a liquid crystalline polyester which is produced from an aromatic carboxylic acid, an aromatic hydroxycarboxylic acid, an aromatic diol and/or an aromatic hydroxylamine, including a polymerization step (1) for producing a prepolymer of the liquid crystalline polyester and a solid-state polymerization step (2) for elevating the polymerization degree of the resultant prepolymer, the number of aromatic ring terminal groups of the prepolymer satisfying the following equation (i): [(the number of aromatic ring terminal groups)/[(the number of carboxylic terminal groups)+(the number of aromatic ring terminal groups)]]×100≧7(%) (i). According to the invention, all-aromatic type liquid crystalline polyesters can be produced within a short time and at low cost.
    • 本发明提供一种由芳香族羧酸,芳香族羟基羧酸,芳香族二醇和/或芳香族羟胺制造的液晶性聚酯的制造方法,该方法包括制备液体的预聚物的聚合工序(1) 结晶聚酯和用于提高所得预聚物的聚合度的固态聚合步骤(2),满足以下等式(i)的预聚物的芳环端基数:[(芳环端基数) / [(羧基端基数)+(芳环端基数)]×100> = 7(%)(i)。 根据本发明,全芳族型液晶聚酯可以在短时间内以低成本生产。
    • 9. 发明授权
    • Wholly aromatic polyester and production process therefor
    • 全芳香聚酯及其生产工艺
    • US06596839B2
    • 2003-07-22
    • US10169671
    • 2002-07-08
    • Takanori MiyoshiHiroshi SakuraiToyoaki IshiwataShunichi Matsumura
    • Takanori MiyoshiHiroshi SakuraiToyoaki IshiwataShunichi Matsumura
    • C08G6300
    • C08G63/64C08G63/82C08G63/83C08G63/85C08G63/87
    • A process for producing a wholly aromatic polyester which is excellent in heat resistance, mechanical properties and yet color and has a high degree of polymerization by melt polymerizing a dicarboxylic acid and a diol directly on an industrial scale at a low cost in a short period of time without esterifying the dicarboxylic acid or diol in advance. To produce the wholly aromatic polyester by reacting and molding an aromatic dicarboxylic acid such as terephthalic acid, an aromatic diol such as 2,2-bis(4-hydroxyphenyl)propane and a diaryl carbonate by heating, a combination of a specific pyridine compound and an alkali metal (bi)carbonate, a combination of a specific pyridine compound and an organic tin compound or a specific titanium compound is existent as a catalyst. Thereby, the wholly aromatic polyester having the above properties is obtained.
    • 一种全芳香族聚酯的制造方法,其具有优异的耐热性,机械性能和颜色,并且通过在短时间内以低成本在工业规模上直接熔融聚合二羧酸和二醇具有高聚合度 预先不二羧酸或二醇酯化。 为了通过加热芳族二羧酸如对苯二甲酸,2,2-双(4-羟基苯基)丙烷等芳香族二醇和碳酸二芳基酯反应而成型,可以将特定的吡啶化合物和 存在碱金属(bi)碳酸盐,特定吡啶化合物和有机锡化合物或特定钛化合物的组合作为催化剂。 由此,得到具有上述特性的全芳香族聚酯。