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公开(公告)号：US06297349B1
公开(公告)日：2001-10-02
申请号：US09486256
申请日：2000-02-24
IPC分类号： C08G6902
摘要： Condensation copolymers are disclosed which are polymerized from a first monomer which is capable of polymerization by condensation polymerization, e.g., ring opening lactone polymerization, and a second monomer which is effective to suppress the crystallization of the copolymer. It is disclosed that suppression of the crystallization can provide enhanced mechanical properties in films made from the copolymers. As a result, films prepared from the copolymers of the present invention can have properties rendering them suitable for use as biodegradable trash bags as well as for other uses.
摘要翻译： 公开了由能够通过缩聚聚合的第一单体聚合的缩合共聚物，例如开环内酯聚合，和有效抑制共聚物结晶的第二单体。 公开了抑制结晶可以在由共聚物制成的膜中提供增强的机械性能。 结果，由本发明的共聚物制备的膜可以具有使其适合用作可生物降解的垃圾袋以及用于其它用途的性质。
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2.发明授权Process for preparing a mixture of aromatic sulfones and aromatic sulfonyl chlorides 失效制备芳族砜和芳族磺酰氯的混合物的方法
公开(公告)号：US4172852A
公开(公告)日：1979-10-30
申请号：US824705
申请日：1977-08-15
IPC分类号： C07C309/86 , C07C317/14 , C07C147/06 , C07C143/70
CPC分类号： C07C309/86 , C07C317/14
摘要： A process is provided for producing a mixture of aromatic sulfonyl chlorides and aromatic sulfones substantially free of the corresponding aromatic sulfonic acids and their anhydrides, which comprises the steps of (a) reacting a monosubstituted benzene such as monochlorobenzene with sulfur trioxide in the presence of at least about 15 mole percent to about 50 mole percent of thionyl chloride, based on the sulfur trioxide, at a temperature from about the freezing point of the reactants to about 40.degree. C.; (b) adding to the reaction mixture of step (a) at least about 60 mole percent thionyl chloride, based on the sulfur trioxide, and preferably a small catalytic amount of dimethylformamide, wherein the total thionyl chloride in the reaction mixture is at least about 110 mole percent, based on the sulfur trioxide, while maintaining the reaction mixture at a temperature between about 25.degree. C. and 70.degree. C.; and then (c) continuing the reaction up to a temperature of about 160.degree. C. The mixture produced can be used without further purification to form diaryl sulfones in high yield, for example, by reacting with monochlorobenzene in the presence of ferric chloride.
摘要翻译： 提供了一种制备基本上不含相应芳族磺酸及其酸酐的芳族磺酰氯和芳香砜的混合物的方法，其包括以下步骤：（a）使单取代的苯如一氯苯与三氧化硫在三 至少约15摩尔％至约50摩尔％的亚硫酰氯，基于三氧化硫，在约从反应物的凝固点至约40℃的温度下进行。 （b）将步骤（a）的反应混合物加至至少约60摩尔％亚硫酰氯（基于三氧化硫），优选小催化量的二甲基甲酰胺，其中反应混合物中的总亚硫酰氯至少约 110摩尔％，基于三氧化硫，同时将反应混合物保持在约25℃至70℃之间的温度下。 然后（c）将反应持续至约160℃。所生产的混合物可以不经进一步纯化而使用，以高产率形成二芳基砜，例如通过在氯化铁存在下与单氯苯反应。
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公开(公告)号：US06346599B1
公开(公告)日：2002-02-12
申请号：US09486255
申请日：2000-05-10
IPC分类号： C08G6308
CPC分类号： C08J5/18 , C08G63/08 , C08G63/60 , C08G69/02 , C08G69/14 , C08G69/36 , C08J2367/04 , Y10T428/268 , Y10T428/269 , Y10T428/31786
摘要： Lactone copolymers are disclosed which are polymerized from a first lactone monomer and a second amorphous monomer which is effective to suppress the crystallization of the copolymer. It is disclosed that suppression of the crystallization can provide enhanced mechanical properties in films made from the copolymers. As a result, films prepared from the copolymers of the present invention can have properties rendering them suitable for use as biodegradable trash bags as well as for other uses.
摘要翻译： 公开了从第一内酯单体和第二非晶体单体聚合的内酯共聚物，其有效抑制共聚物的结晶。 公开了抑制结晶可以在由共聚物制成的膜中提供增强的机械性能。 结果，由本发明的共聚物制备的膜可以具有使其适合用作可生物降解的垃圾袋以及用于其它用途的性质。
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4.发明授权Process for preparing polyarylene polyethers and a novel polyarylene polyether 失效聚亚芳基聚醚和新型聚亚芳基聚醚的制备方法
公开(公告)号：US4307222A
公开(公告)日：1981-12-22
申请号：US162952
申请日：1980-06-25
CPC分类号： C08G65/4093
摘要： Described herein is an improved process for preparing polyarylene polyethers by (a) converting a dihydric phenol to the alkali metal phenolate by adding an alkali metal or alkali metal compound to the phenol in a mixture of a sulfone or sulfoxide solvent and a solvent which forms an azeotrope with water, (b) removing water by codistillation with the azeotrope forming cosolvent, and (c) reacting the phenolate mixture with a dihalobenzeneoid compound, wherein a lighter colored product is obtained by adding the sulfone or sulfoxide solvent in increments. This may be accompanied by (1) adding an increment of the sulfone or sulfoxide solvent to a mixture of the dihydric phenol in the codistillation solvent and adding the remaining portion during the azeotroping step, or (2) adding an increment of the sulfone or sulfoxide solvent to the mixture of dihydric phenol and codistillation solvent and the remaining portion to the system simultaneously with the alkali metal hydroxide or other phenolate forming alkali metal source, or (3) adding a first increment of the sulfone or sulfoxide to the dihydric phenol-azeotrope forming solvent prior to step (a), a second increment simultaneously with the addition of alkali metal source in step (a), and the remainder during or at the end of azeotroping step (b).
摘要翻译： 本文描述了通过以下方法制备聚亚芳基聚醚的改进方法：（a）通过将碱金属或碱金属化合物在砜或亚砜溶剂和溶剂的混合物中加入碱金属或碱金属化合物，将二元酚转化为碱金属酚盐，形成 与水共沸，（b）用形成共沸物的共沸物通过共蒸馏除去水，和（c）使酚盐混合物与二卤苯类化合物反应，其中通过以增量的方式加入砜或亚砜溶剂获得较浅的产物。 这可以伴随着（1）在共蒸馏溶剂中向二元酚的混合物中加入砜或亚砜溶剂的增量，并在共沸步骤中加入剩余部分，或者（2）加入砜或亚砜的增量 溶剂与二元酚和共蒸馏溶剂的混合物，剩余部分与碱金属氢氧化物或其它形成碱金属源的酚盐同时进行，或（3）向二元酚共沸物中加入第一增量的砜或亚砜 在步骤（a）之前形成溶剂，第二增量与步骤（a）中加入碱金属源同时进行，剩余部分在共沸步骤（b）期间或结束时。
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