公开(公告)号：US20170029575A1

公开(公告)日：2017-02-02

申请号：US15303393

申请日：2015-04-08

Applicant: TOYOBO CO., LTD.

Inventor： Kunihiro MAEDA ,  Hideto OHASHI ,  Satoru NAKAGAWA

IPC: C08J3/22 ,  C08K3/08 ,  C08J5/18 ,  C08K5/521

CPC classification number: C08J3/22 ,  C08G63/16 ,  C08J5/18 ,  C08J2367/02 ,  C08K3/08 ,  C08K5/521 ,  C08K2003/0825 ,  C08L67/00

Abstract: The present invention is a polyester composition for a masterbatch, which comprises a polyester, a magnesium compound, an alkali metal compound and a phosphorus compound, wherein magnesium atoms, alkali metal atoms and phosphorus atoms are contained in amounts of 400 to 2700 ppm by mass, 40 to 270 ppm by mass and 200 to 1700 ppm by mass, respectively, in the polyester composition, the melt resistivity of the polyester composition is 0.005×108 to 0.05×108 Ω·cm, and few contaminant particles are observed in the polyester composition under specified conditions. The polyester composition for a masterbatch has a satisfactorily low melt resistivity, contains few contaminant particles, and has an excellent color hue and excellent thermal stability.

Abstract translation: 本发明是一种母料用聚酯组合物，其包含聚酯，镁化合物，碱金属化合物和磷化合物，其中镁原子，碱金属原子和磷原子的含量为400〜2700质量ppm 在聚酯组合物中分别为40〜270质量ppm，200〜1700质量ppm，聚酯组合物的熔融电阻率为0.005×10 8〜0.05×10 8Ω·cm，在聚酯中观察到少量污染物 组成在规定的条件下。 母料的聚酯组合物具有令人满意的低熔体电阻率，含有很少的污染物颗粒，并且具有优异的色调和优异的热稳定性。

公开(公告)号：US20210108027A1

公开(公告)日：2021-04-15

申请号：US16603580

申请日：2018-04-16

Applicant: TOYOBO CO., LTD.

Inventor： Soichiro MINAMI ,  Hideto OHASHI ,  Masayuki HARUTA ,  Shintaro ISHIMARU

IPC: C08G63/183 ,  C08G63/672 ,  B29C61/06

Abstract: The invention provides a polyester resin for heat-shrinkable film which contains terephthalic acid as a main component of a dicarboxylic acid component, contains ethylene glycol as a main component of a diol component, and contains from 18 to 32% by mol of neopentyl glycol and from 8 to 16% by mol of diethylene glycol when a total amount of the whole diol component in total polyester resin components is taken as 100% by mol. The polyester resin has an intrinsic viscosity (IV) of from 0.70 to 0.86 dl/g, a carboxyl end group concentration (AV) of from 8 to 25 eq/t, and a color b value of from 1.0 to 12.0 in an L*a*b color system. The invention also provides a heat-shrinkable film prepared from the aforementioned polyester resin, as well as a heat-shrinkable label and packaged product.

公开(公告)号：US20160237207A1

公开(公告)日：2016-08-18

申请号：US15029699

申请日：2014-10-22

Applicant: TOYOBO CO., LTD.

Inventor： Hideto OHASHI ,  Nobuyuki HIRONAKA

IPC: C08G63/672 ,  C09J167/02 ,  C08J5/18

CPC classification number: C08G63/672 ,  C08J5/18 ,  C08J2367/02 ,  C09J167/02

Abstract: The present invention is a copolymerized polyester resin which contains a dicarboxylic acid component and diol components as constituting components, wherein greater than or equal to 90 mol % of terephthalic acid is contained as the dicarboxylic acid component, 39 to 79 mol % of ethylene glycol, 20 to 60 mol % of neopentyl glycol and 1 to 5 mol % of diethylene glycol are contained as the diol components, the reduced viscosity of the resin is greater than or equal to 0.50 dl/g, the number of contaminants having a particle diameter of greater than or equal to 5 μm is less than or equal to 100 per 1 mm2 in a sample of the copolymerized polyester resin having a thickness of 0.8 to 0.9 mm. The copolymerized polyester resin has a higher degree of clarification than conventionally known copolymerized polyesters and also has excellent color hue and heat resistance.

Abstract translation: 本发明是含有二羧酸成分和二醇成分作为构成成分的共聚聚酯树脂，其中含有作为二羧酸成分的对苯二甲酸的90摩尔％以上，乙二醇39〜79摩尔％ 作为二醇成分含有20〜60摩尔％的新戊二醇和1〜5摩尔％的二甘醇，树脂的比浓粘度大于或等于0.50dl / g，粒径为 在厚度为0.8〜0.9mm的共聚聚酯树脂的样品中，大于或等于5μm的每1mm 2为小于或等于100。 共聚聚酯树脂比常规已知的共聚聚酯具有更高的澄清度，并且还具有优异的色调和耐热性。

公开(公告)号：US20180265627A1

公开(公告)日：2018-09-20

申请号：US15544365

申请日：2016-02-03

Applicant: TOYOBO CO., LTD.

Inventor： Hideto OHASHI ,  Hideki SHIMIZU

IPC: C08G63/183 ,  C08G63/84 ,  C09J167/02

CPC classification number: C08G63/183 ,  C08G63/16 ,  C08G63/84 ,  C09J167/02

Abstract: The present invention provides a copolymerized polyester resin which can produce an adhesive resin having an excellent color tone and an excellent durability when used for an adhesive to be applied to various uses. A copolymerized polyester resin, comprising, as constituting ingredients, a dicarboxylic acid ingredient containing 75 molar % or less of terephthalic acid and a diol ingredient containing two or more kinds of diols, characterized in that the copolymerized polyester resin satisfies the following (1) and (2): (1) A decrease in a reduced viscosity after the copolymerized polyester resin is subjected to a heat treatment in a nitrogen atmosphere at 275° C. for 2 hours is 0.20 dl/g or less; and (2) A color b value is 5 or less.