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1. 发明授权

US5458839A Method of blow or extrusion molding polyoxymethylene resin 失效
标题翻译：吹塑或挤压成型聚甲醛树脂的方法
公开(公告)号：US5458839A
公开(公告)日：1995-10-17
申请号：US51903
申请日：1993-04-27
申请人： Toshiro Murao , Kaoru Yamamoto , Gerhard Reuschel , Dietrich Fleischer
发明人： Toshiro Murao , Kaoru Yamamoto , Gerhard Reuschel , Dietrich Fleischer
IPC分类号： B29C47/00 , B29C47/14 , B29C49/00 , B29D7/01 , B29K59/00 , B29L7/00 , B29L22/00 , B29L31/06 , C08G2/10 , C08G2/18 , C08J5/00 , C08J5/18
CPC分类号： C08J5/18 , B29C49/0005 , B29D7/01 , C08G2/10 , C08G2/18 , B29K2059/00 , C08J2359/02
摘要： A process for efficiently producing a hollow molding or a sheet- or rod-shaped molding includes subjecting a composition containing a polyoxymethylene copolymer resin having substantially a linear molecular structure and a melt flow index (MI) value (190.degree. C., 2160 g load) of 0.1 to 2.0 g/10 min to blow -molding or extrusion-molding operations. The preferred polyoxymethylene copolymer is prepared by copolymerizing trioxane as the principle monomer with a cyclic ether or cyclic formal comonomer in the presence of 1.times.10.sup.-3 to 1.times.10.sup.-2 molar % of a boron trifluoride catalyst or a coordination compound thereof, while regulating the chain-terminating or chain-transferring impurities in the reaction system to 1.times.10.sup.-2 molar % or less, and then cooling the product obtained to a temperature of 45.degree. or below within 30 seconds so as to deactivate the catalyst.
摘要翻译：一种用于有效地生产中空成型或片状或棒状成型的方法包括使含有基本上具有线性分子结构和熔体流动指数（MI）值（190℃，2160g载荷）的聚甲醛共聚物树脂）为0.1〜2.0g / 10分钟，以进行吹塑或挤出成型操作。优选的聚甲醛共聚物通过在1×10 -3至1×10 -2摩尔％的三氟化硼催化剂或其配位化合物的存在下，将三恶烷作为主要单体与环醚或环状形式共聚单体共聚而制备，将反应体系中的杂质终止或链转移至1×10 -2摩尔％以下，然后在30秒内将得到的产物冷却至45℃以下，使催化剂失活。

2. 发明授权

US5344911A Process for producing polyoxymethylene copolymer having reduced amount of unstable terminal groups 失效
标题翻译：具有减少量的不稳定末端基团的聚甲醛共聚物的制备方法
公开(公告)号：US5344911A
公开(公告)日：1994-09-06
申请号：US26130
申请日：1993-03-05
申请人： Kaoru Yamamoto , Nagayoshi Maeda , Makoto Kamiya , Toshiro Murao , Gerhard Reuschel , Dietrich Fleischer
发明人： Kaoru Yamamoto , Nagayoshi Maeda , Makoto Kamiya , Toshiro Murao , Gerhard Reuschel , Dietrich Fleischer
IPC分类号： C08G2/10 , C08G2/28 , C08G4/00 , C08G6/00
CPC分类号： C08G2/28 , C08G2/10
摘要： Processes for producing a polyoxymethylene copolymer includes forming a crude polyoxymethylene copolymer by subjecting a reaction system containing trioxane, a cyclic ether or cyclic formal comonomer, and a catalyst (e.g., boron trifluoride or a coordination compound thereof) to copolymerization reaction conditions. During copolymerization, both the total content of impurities and catalyst in the copolymerization reaction system are adjusted. In this regard, the impurities content (i.e., those compounds which form unstable end groups in the polyoxymethylene copolymer and/or those compounds having a chain-terminating or chain-transfer function) in the copolymerization reaction system is adjusted to 1.times.10.sup.-2 mole percent or less based on the total monomer amount, while the the content of the catalyst in the copolymerization reaction system to between 1.times.10.sup.-3 to 1.times.10.sup.-2 mole percent based on the total monomer amount. Immediately after copolymerization has been completed, the crude polyoxymethylene copolymer is quenched to a temperature of 45.degree. C. or less within 30 seconds after completion of copolymerization. Quenching of the crude polyoxymethylene copolymer is preferably simultaneously accompanied by deactivation of the catalyst by bringing the crude polyoxymethylene copolymer immediately following completion of copolymerization into contact with a cold liquid which contains a catalyst deactivator.
摘要翻译：用于制备聚甲醛共聚物的方法包括通过使含有三恶烷，环醚或环状形式共聚单体的反应体系和催化剂（例如三氟化硼或其配位化合物）进行共聚反应条件来形成粗聚甲醛共聚物。在共聚过程中，调节共聚反应体系中杂质和催化剂的总含量。在这方面，将共聚反应体系中的杂质含量（即，在聚甲醛共聚物中形成不稳定端基的那些化合物和/或具有链终止或链转移功能的那些化合物）调节至1×10 -2摩尔％或更少，而共聚反应体系中催化剂的含量相对于总单体量为1×10 -3〜1×10 -2摩尔％。共聚完成后立即将聚甲醛共聚物在共聚完成后30秒钟内淬火至45℃以下。粗聚甲醛共聚物的淬火优选同时伴随着催化剂的失活，使粗聚甲醛共聚物在完成共聚后立即与含有催化剂失活剂的冷液接触。

3. 发明授权

US5232969A Stabilized polyoxymethylene molding compositions and molded articles formed thereof 失效
标题翻译：稳定的聚甲基苯乙烯成型组合物及其形成的成型制品
公开(公告)号：US5232969A
公开(公告)日：1993-08-03
申请号：US809617
申请日：1991-12-19
申请人： Toshiro Murao , Kaoru Yamamoto , Keiichi Kanaka , Mitsuharu Kusagaya
发明人： Toshiro Murao , Kaoru Yamamoto , Keiichi Kanaka , Mitsuharu Kusagaya
IPC分类号： C08K5/00 , C08K5/06
CPC分类号： C08K5/005 , C08K5/06
摘要： Novel moldable, highly stable, normally solid polyoxymethylene resin compositions and molded articles formed of the same include a stabilizing effective amount of an alkoxy-substituted phenoxy-containing compound having the formula (I) or (II):Ar.sup.1 --O--X (I)Ar.sup.2 (--O--X).sub.s (II)where Ar.sup.1 represents an aryl group having no hydroxyl groups directly bonded thereto as a substituent, Ar.sup.2 represents a benzene or naphthalene ring having no hydroxyl groups directly bonded thereto as a substituent, and s represents the number of alkoxy-derivative substituents. Preferably, Ar.sup.1 in formula (I) is a phenyl, biphenyl or naphthyl group, and Ar.sup.2 in formula (II) is benzene (with s being 2). Ar.sup.1 and Ar.sup.2 in formulas (I) and (II) may only be substituted with the --OX group, or may also contain other alkoxy group substituents. Preferably, a co-stabilizer, such as nitrogenous compounds, alkali or alkaline earth metal hydroxides, inorganic acid salts and carboxylic acid salts, are also present in the compositions of this invention.

4. 发明授权

US4950360A Method of treating the surface of a molded article comprising liquid crystal polyester resin 失效
标题翻译：包括液晶聚酯树脂的模塑制品的表面处理方法
公开(公告)号：US4950360A
公开(公告)日：1990-08-21
申请号：US249691
申请日：1988-09-27
申请人： Toshiro Murao , Yoshiharu Suzuki , Mitsuo Wada , Hiroaki Konuma
发明人： Toshiro Murao , Yoshiharu Suzuki , Mitsuo Wada , Hiroaki Konuma
IPC分类号： C08J7/00 , C08J7/14 , C08K3/00 , C23C18/16 , C23C18/24 , D06M11/00 , D06M11/55 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/32 , H05K1/03 , H05K3/38
CPC分类号： C08J7/14 , C08K3/0033 , C08J2367/03 , H05K1/0313 , H05K1/0373 , H05K3/381
摘要： Three dimensional molded articles comprising liquid crystalline polyesters are recognized to be extremely difficult to finish such as by printing, painting, metallizing, plating, etc. An effective answer to this difficulty is provided by initially blending within the liquid crystalline polyester at least one particulate inorganic filler selected from the group consisting of Group II elements of the periodic table and oxides, sulfates, phosphates, silicates, and carbonates thereof, and elements of aluminum, silicon, tin, lead, antimony, and bismuth and oxides thereof, in an amount of 5 to 80 percent by weight; forming a molded article from the same; and contacting the resulting molded article with an acidic solution containing at least 80 percent by weight of sulfuric acid. The requisite surface modification for finishing to form a quality product is made possible.

5. 发明授权

US4997724A Process for surface treatment of moldings of liquid-crystalline polyester resin 失效
标题翻译：液晶聚酯树脂模制品的表面处理工艺
公开(公告)号：US4997724A
公开(公告)日：1991-03-05
申请号：US198255
申请日：1988-05-25
申请人： Yoshiharu Suzuki , Toshiro Murao , Michiaki Ogura
发明人： Yoshiharu Suzuki , Toshiro Murao , Michiaki Ogura
IPC分类号： C08J7/00 , C08J7/04 , C08J7/12 , C23C18/22 , H05K1/03 , H05K3/18 , H05K3/38
CPC分类号： C08J7/12 , C08J7/045 , C23C18/22 , C08J2367/03 , H05K1/0313 , H05K1/0373 , H05K3/181 , H05K3/381 , Y10S428/935 , Y10T428/12569 , Y10T428/31681 , Y10T428/31786
摘要： Provided herein is a process for surface treatment of moldings of liquid-crystalline polyester resin which comprises roughening with an alkaline aqueous solution the surface of moldings of melt-processable polyester capable of forming an anisotropic molten phase. The roughened moldings are activated by contacting with an aqueous solution of an ampholytic surface active agent such as an aminocarboxylate. The process is intended to provide the moldings with surface characteristics suitable for surface decoration such as printing, painting, metallizing, and plating and also for bonding with an adhesive.

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