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111. 发明专利

JPS6152849B2 失效
公开(公告)号：JPS6152849B2
公开(公告)日：1986-11-14
申请号：JP4804479
申请日：1979-04-20
申请人： ASAHI CHEMICAL IND
发明人： MATSUZAKI KAZUHIKO , MASAMOTO JUNZO
IPC分类号： C08G2/00 , C08G2/30 , C08G2/34

112. 发明专利

JPS5915332B2 JPS5915332B2 - 失效
公开(公告)号：JPS5915332B2
公开(公告)日：1984-04-09
申请号：JP7967180
申请日：1980-06-13
申请人： Asahi Chemical Ind
发明人： MATSUZAKI KAZUHIKO , HAMADA MINORU , SAKURAI HISAYA
IPC分类号： C08G2/00 , C08G2/06 , C08G2/08 , C08G2/30 , C08G2/34 , C08L59/04

113. 发明专利

JPS5783516A Preparation of oxymethylene copolymer 失效
标题翻译：聚乙烯共聚物的制备
公开(公告)号：JPS5783516A
公开(公告)日：1982-05-25
申请号：JP15769280
申请日：1980-11-11
申请人： Ube Ind Ltd
发明人： TAKIGAWA NAOHISA , KATSUTA SUNAO , NINOMIYA HIROSHI
IPC分类号： C08G2/00 , C08G2/18 , C08G2/34 , C08G2/38 , C08G4/00
摘要： PURPOSE: To obtain the titled copolymer by stable continuous operation, by adding a cyclic formal and a Lewis acid to a slurry of homopolymer of formaldehyde, carrying out copolymerization, stopping the polymerization with a specific reagent, separating, recovering by distillation, and reusing a solvent.
CONSTITUTION: Formaldehyde, recovered and feed inert organic solvent (e.g., n-heptane, etc.), and a metal chelate compound[e.g., bisacetylacetonatocopper, etc.]are added to the polymerization tank 1. Homopolymerization is carried out first to give slurry, which is transferred to the copolymerization tank 2, to which a cyclic formal (e.g., 1,3,6-trioxocane, etc.) and a Lewis acid (e.g., BF
3 , etc.) are added to carry out copolymerization. The prepared slurry is sent to the blending tank 3, and the polymerization is stopped by adding an alkali metal salt of ethylene-diaminetetraacetic acid. The copolymer is separated from the solvent by the solid-liquid separator 4, and the solvent is recovered by the distillation column 5 and reused.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了通过稳定的连续操作获得标题共聚物，通过向甲醛均聚物的浆料中加入环状缩甲醛和路易斯酸，进行共聚，停止与特定试剂的聚合，通过蒸馏分离，回收并重新使用溶剂。构成：将甲醛，回收和进料惰性有机溶剂（例如正庚烷等）和金属螯合物（例如双乙酰丙酮等）加入到聚合槽1中。首先进行均聚，得到浆料，转移到共聚槽2中，加入环状缩甲醛（例如1,3,6-三氧杂环己烷等）和路易斯酸（例如BF 3等）进行共聚。将制备的浆料送入混合罐3，通过加入乙烯 - 二胺四乙酸的碱金属盐停止聚合。通过固液分离器4将共聚物与溶剂分离，并通过蒸馏塔5回收溶剂并重新使用。

114. 发明专利

JPS5731918A Production of polyacetal polymer 失效
标题翻译：聚乙烯聚合物的生产
公开(公告)号：JPS5731918A
公开(公告)日：1982-02-20
申请号：JP10709680
申请日：1980-08-06
申请人： Asahi Chem Ind Co Ltd
发明人： MATSUZAKI KAZUHIKO , HAMADA MINORU , SAKURAI HISAYA
IPC分类号： C08G2/00 , C08G2/04 , C08G2/06 , C08G2/10 , C08G2/34
摘要： PURPOSE: To produce a polyacetal polymer having excellent lubricating performance and antistatic performance, by reacting trioxane (or polyoxymethylene) by using a specified compound as an MW modifier.
CONSTITUTION: Trioxane or the like is polymerized by using, as an MW modifier, an adduct of an alkylene oxide, e.g., ethylene oxide, to an alcohol, e.g., lauryl alcohol, represented by formula I, wherein R
0 is H, a (substituted) alkyl or a (substituted) aryl, R
1 is a (substituted) alkyl or a (substituted) aryl, m is 2W6 and n is 1W1,000, or an adduct of an alkylene oxide to a carboxylic acid, e.g., lauric acid, represented by formula II, wherein R
2 is the same as R
0 .
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过使用特定的化合物作为MW改性剂，使三恶烷（或聚甲醛）反应，生成具有优异的润滑性能和抗静电性能的聚缩醛聚合物。构成：通过将作为MW改性剂的环氧烷烃例如环氧乙烷的加合物与式（I）表示的醇例如月桂醇（其中R 0是H），（取代的））烷基或（取代的）芳基，R 1是（取代的）烷基或（取代的）芳基，m是2-6，n是1-1000，或烯化氧与羧酸的加合物，例如月桂酸酸，由式II表示，其中R2与R0相同。

115. 发明专利

JPS5550046B2 失效
公开(公告)号：JPS5550046B2
公开(公告)日：1980-12-16
申请号：JP366578
申请日：1978-01-17
IPC分类号： C08G2/00 , C08G2/30 , C08G2/34 , C08G2/36

116. 发明专利

JPS55149315A PREPARATION OF STABILIZED POLYOXYMETHYLENE 失效
公开(公告)号：JPS55149315A
公开(公告)日：1980-11-20
申请号：JP4804479
申请日：1979-04-20
申请人： ASAHI CHEMICAL IND
发明人： MATSUZAKI KAZUHIKO , MASAMOTO JIYUNZOU
IPC分类号： C08G2/00 , C08G2/30 , C08G2/34
摘要： PURPOSE:To obtain a stabilized polyoxymethylene with excellent heat stability, stability to a base and mechanical properties, by reacting polyoxymethylene and 1,3- dioxepane in the presence of a Lewis acid in an org. medium. CONSTITUTION:Polyoxymethylene with number-average MW of above 10,000 and 1,3-dioxepane are reacted in the pesence of a Lewis acid in an org. medium containing an MW-regulating agent. In case of maintaining the concn. of 1,3-dioxepane in the above-described org. medium below the concn. (M) prescribed by a formula M=0.8/t+32.6 (wherein M is 1,3-dioxepane concn. g/l; t is reaction temp. deg.C), especially excellent results in heat stability, stability to a base and mechanical properties of a polymer can be obtained. As an MW-regulating agent to be used, an acetal compound shown by ROCH2OR (wherein R is alkyl), RO(CH2O)n (wherein R is alkyl; n is 2-20) or the like is mentioned.

117. 发明专利

JPS5141091A 失效
公开(公告)号：JPS5141091A
公开(公告)日：1976-04-06
申请号：JP11401574
申请日：1974-10-03
申请人： SHINETSU CHEMICAL CO
发明人： OGAWA KINYA , KUBOTA YOSHIHIRO , KASHITA SHU
IPC分类号： C08G2/00 , C08G2/30 , C08G2/34

118. 发明专利

JPS5024940B1 失效
公开(公告)号：JPS5024940B1
公开(公告)日：1975-08-20
申请号：JP2738065
申请日：1965-05-12
IPC分类号： C07C47/045 , C07C45/00 , C07C47/04 , C07C67/00 , C08G2/00 , C08G2/34 , C08G2/08

119. 发明公开

EP4201973A1 PRÄPOLYMER UMFASSEND EINEN POLYOXYMETHYLEN-BLOCK UND DESSEN HERSTELLUNGSVERFAHREN 审中-实审
公开(公告)号：EP4201973A1
公开(公告)日：2023-06-28
申请号：EP21216602.9
申请日：2021-12-21
申请人： Covestro Deutschland AG
发明人： MACHAT, Martin , VASIUTA, Roman , LEITNER, Walter , ANTONELS, Nathan , LANGANKE, Jens , GUERTLER, Christoph
IPC分类号： C08G2/08 , C08G2/30 , C08G2/34 , C08G18/56
摘要： Die vorliegende Erfindung beschreibt ein Präpolymer (A) umfassend einen Polyoxymethylen-Block sowie ein Verfahren zur Herstellung des Präpolymers (A). Auch das Präpolymer (E) und dessen Herstellungsverfahren durch weitere Umsetzung des Präpolymers (A) sind Erfindungsgegenstand.

120. 发明授权

EP2810929B1 A method for refining polyoxymethylene dialkyl ethers by catalytic hydrogenation using a slurry bed 失效
公开(公告)号：EP2810929B1
公开(公告)日：2018-08-08
申请号：EP14171387.5
申请日：2014-06-05
申请人： Dongfang Hongsheng New Energy Application Technology Research Institute Co., Ltd (CN)
发明人： Hong, Zhengpeng , Shang, Hongyan , Feng, Xiaoting
IPC分类号： C07C29/141 , C08G2/28 , C08G2/34 , C10L1/02 , C08L59/02 , C07C41/56
CPC分类号： C10L1/02 , C07C29/141 , C07C41/56 , C08G2/28 , C08G2/34 , C08L59/02 , C07C43/303 , C07C31/04
摘要： The present invention relates to a method for refining polyoxymethylene dialkyl ethers by catalytic hydrogenation using a slurry bed, wherein, using a slurry bed reactor of refining by hydrogenation, an equilibrium system of products containing polyoxymethylene dialkyl ethers is refined by catalytic hydrogenation, so as to remove formaldehyde contained therein. The refining method by hydrogenation described in the present invention is able to remarkably increase the extracting rate of polyoxymethylene dialkyl ethers, and the polyoxymethylene dialkyl ethers obtained after subsequent rectification have purity greater than 99.5%, yield greater than 97% and atom utilization ratio close to 100%.

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