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1. 发明专利

JPS6178831A Copolyester 失效
标题翻译：共聚物
公开(公告)号：JPS6178831A
公开(公告)日：1986-04-22
申请号：JP20260784
申请日：1984-09-27
申请人： Mitsubishi Chem Ind Ltd , Nippon Telegr & Teleph Corp
发明人： YAMAMOTO FUMIO , YAMAKAWA SHINZO , SHIYUDO YOSHITO , NOZAWA SEIICHI , TAKENAKA KUNIHIRO , KIDAI OSAMU
IPC分类号： C08G63/00 , C08G63/60
摘要： PURPOSE: A copolyester which can be easily formed into yarn and has a low shrinkage and a low coefficient of thermal expansion, having dicarboxylic acid units, glycol units and hydroxycarboxylic acid units at a specified ratio.
CONSTITUTION: A polyester comprising dicarboxylic acid units (A) of formula I (wherein at least 60mol% of R are 1,4-phenylene grou6ps and at most 40mol% of R
1 are 6W16C bivalent aromatic hydrocarbon groups, etc.), glycol units (B) of formula II (wherein R
2 is a 1W20C bivalent aliphatic hydrocarbon group or the like) and hydroxycarboxylic acid units (C) of formula III (wherein at least 60mol% of R
3 are 1,4-phenylene groups and at most 40mol% of R
3 are 6W16C bivalent aromatic hydrocarbon groups), wherein part of units (C) are bonded to part of glycol units (B) through ether linkages to form units (D) of formula IV, these units are present at a specified ratio and the logarithmic viscosity as measured in a phenol/tetrachloroethane (1:1 by weight) mixture at 0.5g/cc and 30°C is 0.85cc/g or above.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：可以容易地形成纱线并且具有低收缩率和低热膨胀系数的共聚酯，其具有指定比例的二羧酸单元，二醇单元和羟基羧酸单元。构成：包含式I的二羧酸单元（A）的聚酯（其中至少60摩尔％的R为1,4-亚苯基环丙烷并且最多为40摩尔％的R 1为6-16个C 2芳族烃基等）），式II的二醇单元（B）（其中R 2是1-20C的二价脂族烃基等）和式III的羟基羧酸单元（C）（其中至少60mol％的R 3，是1,4-亚苯基，并且最多40mol％的R 3是6-16C二价芳族烃基），其中部分单元（C）通过醚键与二醇单元（B）的一部分键合以形成单元（D）式中，这些单元以规定的比例存在，以0.5g / cc和30℃在苯酚/四氯乙烷（1:1重量比）混合物中测得的对数粘度为0.85cc / g或以上。

2. 发明专利

JPS6178830A Production of copolyester 失效
标题翻译：生产共聚物
公开(公告)号：JPS6178830A
公开(公告)日：1986-04-22
申请号：JP20260684
申请日：1984-09-27
申请人： Mitsubishi Chem Ind Ltd
发明人： NOZAWA SEIICHI , TAKENAKA KUNIHIRO , KIDAI OSAMU
IPC分类号： C08G63/00 , C08G63/60
摘要： PURPOSE: To heighten the rigidity, strength and elongation at break of a copolyester, by effecting the acetylation and polymerization of a cooligomer of a specified polyester or oligoester with a hydroxycarboxylic acid at high temperature.
CONSTITUTION: A cooligomer is formed by contacting a polyester or oligoester comprising recurring units of formula I (wherein R
1 and R
2 are each a 4W20 C alicyclic hydrocarbon bivalent radical, a 6W20C aromatic hydrocarbon bivalent radical or the like), suitably, polyethylene terephthalate or its oligomer, with a hydroxycarboxylic acid of formula II (wherein R
3 is a 6W20C aromatic hydro carbon bivalent radical) and heating the mixture at 150W350°C and atmospheric pressure. The mixing ratio between the both is 5:95W95:5 (in terms of a molar ratio of said recurring units to the hydroxycarboxylic acid). This cooligomer is mixed with an acetylating agent (e.g., acetic anhydride) and subjected to acetylation and high-temperature polymerization (at 280W350°C) and further subjected to deacetylation at a reduced pressure and in vacuum to obtain a copolyester.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在特定的聚酯或低聚酯与羟基羧酸在高温下进行乙酰化和聚合，提高共聚酯的刚性，强度和断裂伸长率。构成：通过使包含式I的重复单元的聚酯或低聚酯（其中R 1和R 2各自为4-20C脂环族烃二价基团，6-20C芳族烃二价基团）或类似物），合适地是聚对苯二甲酸乙二醇酯或其低聚物与式II的羟基羧酸（其中R 3是6-20C芳族碳氢二价基团）并在150-350℃和大气压下加热该混合物。两者之间的混合比为5:95-95:5（以所述重复单元与羟基羧酸的摩尔比计）。将该混合物与乙酰化剂（例如乙酸酐）混合并进行乙酰化和高温聚合（280-350℃），并进一步在减压和真空下进行脱乙酰化，得到共聚酯。

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