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公开(公告)号：US4294957A
公开(公告)日：1981-10-13
申请号：US69819
申请日：1979-08-27
摘要： Described herein is a process for preparing polyarylates of improved color which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of at least one cycloaliphatic, substituted aromatic or heteroaromatic compound, which compounds contain at least one benzylic and/or tertiary hydrogen atom, at a temperature of from about 260.degree. to about 350.degree. C. Optionally, the process may be carried out in the presence of a magnesium, manganese, or zinc catalyst.
摘要翻译： 本文描述了一种制备改进颜色的多芳基化合物的方法，该方法包括使二元酚的二酯衍生物与芳族二羧酸在约10至约60重量％的至少一种脂环族取代的芳族或杂芳族化合物的存在下反应， 该化合物在约260℃至约350℃的温度下含有至少一个苄基和/或叔氢原子。任选地，该方法可以在镁，锰或锌催化剂的存在下进行。
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2.发明授权
公开(公告)号：US4294956A
公开(公告)日：1981-10-13
申请号：US69818
申请日：1979-08-27
摘要： Described herein is a process for preparing polyarylates which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of a diphenyl ether compound at a temperature of from about 260.degree. to about 350.degree. C.
摘要翻译： 本文描述的是制备多芳基化合物的方法，其包括使二羟基苯酚的二酯衍生物与芳族二羧酸在约10至约60重量％的二苯醚化合物存在下，在约260℃至约 350℃
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公开(公告)号：US4275188A
公开(公告)日：1981-06-23
申请号：US142708
申请日：1980-04-22
IPC分类号： C08G63/193 , C08G63/20 , C08G63/81 , C08G63/18
CPC分类号： C08G63/81 , C08G63/193 , C08G63/20
摘要： Polyarylates derived from a mixture of iso- and terephthalic acids and 4,4'-biphenol and bisphenol A were found to afford melt stable polyesters having good solvent and stress crack resistance.
摘要翻译： 发现衍生自异对苯二甲酸和对苯二甲酸和4,4'-联苯酚和双酚A的混合物的聚芳酯得到具有良好溶剂和抗应力开裂性的熔融稳定的聚酯。
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公开(公告)号：US4314051A
公开(公告)日：1982-02-02
申请号：US146210
申请日：1980-05-05
摘要： Described herein is a process for preparing crystalline polyarylates which comprises (a) forming a crystalline polyarylate prepolymer having a reduced viscosity of from 0.05 to about 0.4 dl/g by reacting at least one diester derivative of a dihydric phenol with at least one aromatic dicarboxylic acid in the presence of a solvent, at a temperature of from about 250.degree. to about 300.degree. C., and (b) heating the prepolymer so formed below its melting point to form a crystalline polyarylate having a reduced viscosity of from about 0.45 to about 1.2 dl/g.
摘要翻译： 本文描述的是制备结晶多芳基化合物的方法，其包括（a）通过使二元酚的至少一种二酯衍生物与至少一种芳族二羧酸反应形成具有0.05至约0.4dl / g的比浓粘度的结晶多芳基化合物预聚物 在溶剂存在下，在约250℃至约300℃的温度下，和（b）加热在其熔点以下形成的预聚物以形成结晶多芳基化合物，其具有约0.45至约 1.2 dl / g。
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公开(公告)号：US06460549B2
公开(公告)日：2002-10-08
申请号：US09975482
申请日：2001-10-11
IPC分类号： B08B304
CPC分类号： B23Q11/1069 , B01D17/00 , B01D17/0208 , B01D17/0211 , B01D17/0217 , B01D17/085 , B01D17/12 , B01D21/2461 , C10M175/04 , C23G1/36
摘要： Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
摘要翻译： 公开了一种再循环和再利用水性脱脂溶液以进一步用作冷却剂溶液的组分的方法，其本身在金属切割机中回收和再利用。 还公开了一种脱脂部件的方法，以及控制使得将适量的脱水水溶液引入冷却剂溶液中的脱脂装置。 最后，本文公开了一种制备冷却剂的方法和系统，其中进一步利用水性脱脂溶液作为冷却剂溶液的进料溶液，所得溶液能够分离成其组分部分并在切割中重复使用， 清洁金属以形成金属部件。
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公开(公告)号：US06435198B1
公开(公告)日：2002-08-20
申请号：US09975050
申请日：2001-10-11
IPC分类号： B08B302
摘要： Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
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公开(公告)号：US5983910A
公开(公告)日：1999-11-16
申请号：US135491
申请日：1998-08-17
CPC分类号： B23Q11/1069 , B01D17/12 , B01D21/2461 , C10M175/04 , C23G1/36
摘要： Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.
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公开(公告)号：US5795400A
公开(公告)日：1998-08-18
申请号：US739613
申请日：1996-10-30
IPC分类号： B01D17/00 , B01D21/24 , B23Q11/10 , C10M175/04 , C23G1/36 , B08B3/00 , B08B3/04 , C23G5/00 , C23G5/02
CPC分类号： B23Q11/1069 , B01D17/12 , B01D21/2461 , C10M175/04 , C23G1/36
摘要： In a metalworking process, an aqueous based degreasing solution which is used to clean manufactured parts, is recycled as a component of an aqueous based coolant fluid which is employed in the metalworking process used to fabricate the parts.
摘要翻译： 在金属加工过程中，用于清洁制造部件的水基脱脂溶液作为用于制造零件的金属加工工艺中的水性冷却剂流体的组分被再循环。
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公开(公告)号：US4374239A
公开(公告)日：1983-02-15
申请号：US293930
申请日：1981-08-18
摘要： Described herein is a process for preparing polyarylates which comprises reacting a diester derivative of a dihydric phenol with an aromatic dicarboxylic acid in the presence of from about 10 to about 60 weight percent of at least one particular halogenated and/or etherated substituted aromatic or heteroaromatic compound, at a temperature of from about 260.degree. to about 350.degree. C.
摘要翻译： 本文描述的是制备多芳基化合物的方法，其包括使二元酚的二酯衍生物与芳族二羧酸在约10至约60重量％的至少一种特定的卤化和/或醚取代的芳族或杂芳族化合物 在约260℃至约350℃的温度下进行。
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公开(公告)号：US4374237A
公开(公告)日：1983-02-15
申请号：US333103
申请日：1981-12-21
IPC分类号： C08G18/00 , C08G18/10 , C08G18/65 , C08G18/80 , C09K3/10 , C08G18/38 , C08G77/04 , C08G77/26
CPC分类号： C09K3/1021 , C08G18/10 , C08G2190/00
摘要： Curable isocyanate prepolymers have been made in which all or a portion of the available isocyanate terminal groups have been reacted with a secondary amine-containing silane monomer having two trialkoxy silane groups.
摘要翻译： 已经制备了可固化的异氰酸酯预聚物，其中全部或部分可用的异氰酸酯端基已经与具有两个三烷氧基硅烷基团的含仲胺的硅烷单体反应。
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