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公开(公告)号：US5990265A
公开(公告)日：1999-11-23
申请号：US102511
申请日：1998-06-22
IPC分类号： C08G63/183 , C08G63/80 , C08G63/02
CPC分类号： C08G63/80 , C08G63/183
摘要： Disclosed herein is a novel physical form of low molecular weight poly(trimethylene terephthalate). This form may be produced from molten low molecular weight poly(trimethylene terephthalate) material by means of rapid heat transfer from the material. The poly(trimethylene terephthalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight.
摘要翻译： 本文公开了低分子量聚（对苯二甲酸丙二醇酯）的新型物理形式。 该形式可以由熔融的低分子量聚（对苯二甲酸丙二醇酯）材料通过从材料的快速热传递产生。 聚（对苯二甲酸丙二醇酯）组合物适用于固相聚合的起始原料，以生产高分子量的聚合物。
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2.发明授权Crystalline form of poly(ethylene 2,6-naphthalate) and a method for its production 失效聚（2,6-萘二甲酸乙二醇酯）的结晶形式及其生产方法
公开(公告)号：US5670606A
公开(公告)日：1997-09-23
申请号：US583365
申请日：1996-01-05
CPC分类号： C08J3/12 , C08G63/80 , C08G63/88 , C08J2323/06
摘要： Disclosed herein is a novel crystalline form of low molecular weight poly(ethylene 2,6-naphthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(ethylene 2,6-naphthalate) material by means of rapid heat transfer to or from the material. The poly(ethylene 2,6-naphthalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight.
摘要翻译： 本文公开了低分子量聚（2,6-萘二甲酸乙二醇酯）的新型结晶形式。 该结晶形式可以由熔融或玻璃状的低分子量聚（2,6-萘二甲酸乙二醇酯）材料通过快速热传递到材料或从材料中产生。 聚（2,6-萘二甲酸乙二醇酯）组合物适合用作固相聚合的起始原料，以便制备较高分子量的聚合物。
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公开(公告)号：US5744074A
公开(公告)日：1998-04-28
申请号：US694084
申请日：1996-08-08
CPC分类号： B01J2/26 , B29B9/10 , B29B9/16 , B29B2009/165 , B29C71/0063 , B29C71/02 , B29K2067/00 , B29K2995/0041
摘要： This invention relates to a process and apparatus for forming a polyester polymer into particles. More particularly, this invention relates to a process and apparatus for forming crystalline, uniform pellets from an amorphous polyester melt. The polyester pellets have utility, for example, as feedstock for a process for producing higher molecular weight polyesters.
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公开(公告)号：US5763104A
公开(公告)日：1998-06-09
申请号：US764492
申请日：1996-12-12
CPC分类号： C08G63/183 , C08G63/80 , C08G63/88
摘要： Disclosed herein is a novel crystalline form of low molecular weight poly(trimethylene terephthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(trimethylene terephthalate) material by means of rapid heat transfer to or from the material. The poly(trimethylene terephthalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight.
摘要翻译： 本文公开了低分子量聚（对苯二甲酸丙二醇酯）的新型结晶形式。 该结晶形式可以由熔融或玻璃状的低分子量聚（对苯二甲酸丙二醇酯）材料通过快速热传递到材料或从材料中产生。 聚（对苯二甲酸丙二醇酯）组合物适用于固相聚合的起始原料，以生产高分子量的聚合物。
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公开(公告)号：US5714262A
公开(公告)日：1998-02-03
申请号：US577987
申请日：1995-12-22
CPC分类号： C08G63/80 , C08G63/88 , Y10T428/2982
摘要： Disclosed herein is a novel crystalline form of low molecular weight poly(ethylene terephthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(ethylene terephthalate) material by means of rapid heat transfer to or from the material. The poly(ethylene terephthalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight. A higher molecular weight polymer product having a unique physical form can be produced by solid-state polymerization of the low molecular weight poly(ethylene terephthalate).
摘要翻译： 本文公开了低分子量聚（对苯二甲酸乙二醇酯）的新型结晶形式。 该结晶形式可以由熔融或玻璃状的低分子量聚（对苯二甲酸乙二醇酯）材料通过快速热传递到材料或从材料中产生。 聚（对苯二甲酸乙二醇酯）组合物适合用作固相聚合的原料，以便制备较高分子量的聚合物。 可以通过低分子量聚（对苯二甲酸乙二醇酯）的固态聚合来制备具有独特物理形式的较高分子量聚合物产物。
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公开(公告)号：US5830982A
公开(公告)日：1998-11-03
申请号：US833685
申请日：1997-04-08
摘要： Disclosed herein is a novel crystalline form of low molecular weight poly(ethylene terephthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(ethylene terephthalate) material by means of rapid heat transfer to or from the material. The poly(ethylene terephthalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight. A higher molecular weight polymer product having a unique physical form can be produced by solid-state polymerization of the low molecular weight poly(ethylene terephthalate).
摘要翻译： 本文公开了低分子量聚（对苯二甲酸乙二醇酯）的新型结晶形式。 该结晶形式可以由熔融或玻璃状的低分子量聚（对苯二甲酸乙二醇酯）材料通过快速热传递到材料或从材料中产生。 聚（对苯二甲酸乙二醇酯）组合物适合用作固相聚合的原料，以便制备较高分子量的聚合物。 可以通过低分子量聚（对苯二甲酸乙二醇酯）的固态聚合来制备具有独特物理形式的较高分子量聚合物产物。
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公开(公告)号：US5730913A
公开(公告)日：1998-03-24
申请号：US694083
申请日：1996-08-08
CPC分类号： B01J2/26 , B29B9/10 , B29B9/16 , B29B2009/165 , B29C71/0063 , B29C71/02 , B29K2067/00 , B29K2995/0041
摘要： This invention relates to a process and apparatus for forming a polyester polymer into particles. More particularly, this invention relates to a process and apparatus for forming crystalline, uniform pellets from an amorphous polyester melt. The polyester pellets have utility, for example, as feedstock for a process for producing higher molecular weight polyesters.
摘要翻译： 本发明涉及将聚酯聚合物形成颗粒的方法和设备。 更具体地说，本发明涉及从无定形聚酯熔体形成结晶均匀的颗粒的方法和设备。 聚酯粒料例如可用作生产较高分子量聚酯的方法的原料。
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公开(公告)号：US6069228A
公开(公告)日：2000-05-30
申请号：US135225
申请日：1998-08-17
申请人： Albert Walter Alsop , Elwood Neal Blanchard , Jeffrey D. Cohen , John Maurice Iwasyk , Clara Young Lin , David Neil Marks , Jan M. Stouffer
发明人： Albert Walter Alsop , Elwood Neal Blanchard , Jeffrey D. Cohen , John Maurice Iwasyk , Clara Young Lin , David Neil Marks , Jan M. Stouffer
摘要： Disclosed is a process for the preparation of polyamide polymers via prepolymer formation in a reactor system comprising a reactor, flasher and separator, crystallization of the prepolymer under controlled temperature conditions and the subsequent conversion of these crystallized prepolymers to high molecular weight polymer.
摘要翻译： 公开了一种在包含反应器，闪蒸器和分离器的反应器系统中通过预聚物形成制备聚酰胺聚合物的方法，预聚物在受控温度条件下结晶，随后将这些结晶的预聚物转化为高分子量聚合物。
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公开(公告)号：US5540868A
公开(公告)日：1996-07-30
申请号：US375873
申请日：1995-01-20
CPC分类号： C08J3/12 , C08G63/80 , C08G63/88 , C08J2367/02
摘要： The present invention relates to a process for forming robust, uniform, low molecular weight crystalline polyester particles. Such particles are useful for forming higher molecular weight polyesters, for example, by solid-state polymerization. Either conventionally-formed, essentially amorphous, non-molten polyester pellets at ambient temperatures or, alternatively, essentially amorphous molten polyester droplets, can be crystallized by rapidly subjecting the droplets or pellets to a thermal shock according to the process of the present invention.
摘要翻译： 本发明涉及一种形成坚固，均匀，低分子量的结晶聚酯颗粒的方法。 这样的颗粒可用于形成较高分子量的聚酯，例如通过固相聚合。 根据本发明的方法，在环境温度下常规形成的，基本上无定形的非熔融聚酯颗粒或者基本上无定形的熔融聚酯液滴可以通过快速地对液滴或颗粒进行热冲击来结晶。
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公开(公告)号：US5532333A
公开(公告)日：1996-07-02
申请号：US525241
申请日：1995-09-08
摘要： Disclosed herein is a novel crystalline form of low molecular weight poly(ethylene terephthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(ethylene terephthalate) material by means of rapid heat transfer to or from the material. The poly(ethylene terephtalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight.
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