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1. 发明授权

US09074088B2 Adhesive resin composition, and laminate using the same 有权
标题翻译：粘合树脂组合物和使用其的层压体
公开(公告)号：US09074088B2
公开(公告)日：2015-07-07
申请号：US12593791
申请日：2008-03-28
申请人： Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
发明人： Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
IPC分类号： B32B27/08 , B32B27/32 , C08L31/00 , C08L51/00 , B29C47/00 , C08F265/00 , C08F265/02 , C08F267/04 , C09J123/02 , C09J123/10 , C09J151/00 , C09J151/06 , B29C47/06 , C08L29/06
CPC分类号： C08L51/003 , B29C47/0021 , B29C47/06 , B32B7/12 , B32B27/08 , B32B27/18 , B32B27/306 , B32B27/32 , B32B27/34 , B32B2270/00 , B32B2307/306 , B32B2307/554 , B32B2307/558 , B32B2307/7244 , B32B2307/7246 , B32B2439/70 , B32B2439/80 , C08F265/00 , C08F265/02 , C08F267/04 , C08L29/06 , C08L2666/02 , C08L2666/04 , C09J123/02 , C09J123/10 , C09J151/003 , C09J151/06 , Y10T428/3192 , Y10T428/31938
摘要： Laminates in which a layer of a polar resin (C) is laminated with a layer of a polyolefin (D) or a recovered resin (E) via a layer of an adhesive resin composition (A), including an ethylene-vinyl alcohol copolymer, the adhesive resin composition (A) is produced by mixing a resin having an unsaturated carboxylic acid anhydride or derivative thereof (a1) with a ring-opening polymer or condensation polymer (a2) having a hydroxyl group or an amino group at both ends or at one end; or partially grafting the (a2) with the (a1).
摘要翻译：通过包含乙烯 - 乙烯醇共聚物的粘合剂树脂组合物（A）层将一层极性树脂（C）与一层聚烯烃（D）或回收树脂（E）层压，粘合树脂组合物（A）通过将具有不饱和羧酸酐或其衍生物（a1）的树脂与两端具有羟基或氨基的开环聚合物或缩聚物（a2）混合而制备，一端; 或用（a1）部分接枝（a2）。

2. 发明申请

US20100119856A1 ADHESIVE RESIN COMPOSITION, AND LAMINATE USING THE SAME 有权
标题翻译：粘合树脂组合物和使用它的层压板
公开(公告)号：US20100119856A1
公开(公告)日：2010-05-13
申请号：US12593791
申请日：2008-03-28
申请人： Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
发明人： Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
IPC分类号： B32B27/08 , C08L31/00 , B32B27/32
CPC分类号： C08L51/003 , B29C47/0021 , B29C47/06 , B32B7/12 , B32B27/08 , B32B27/18 , B32B27/306 , B32B27/32 , B32B27/34 , B32B2270/00 , B32B2307/306 , B32B2307/554 , B32B2307/558 , B32B2307/7244 , B32B2307/7246 , B32B2439/70 , B32B2439/80 , C08F265/00 , C08F265/02 , C08F267/04 , C08L29/06 , C08L2666/02 , C08L2666/04 , C09J123/02 , C09J123/10 , C09J151/003 , C09J151/06 , Y10T428/3192 , Y10T428/31938
摘要： This invention provides an adhesive resin having sufficient adhesion with a polar resin in any applications at normal temperature and applications for boiling and retort processing, a resin composition comprising the adhesive resin, and further a laminate with polyolefin/polar resin including the resin composition as an intermediate layer. An adhesive resin composition (A) for a polar resin is produced by mixing a resin having a carboxylic acid anhydride or derivative thereof component (a1) with a ring-opening polymer or condensation polymer component (a2) having a hydroxyl group or an amino group at both ends or at one end; or graft-reacting the (a2) component with the (a1) component, and wherein an amount of the (a1) component is such that an acid value of the adhesive resin composition (A) is from 0.1 to 50 mg KOH/g with a potassium hydroxide/ethanol solution, and an amount of the (a2) component is such that y/(x+y)*100 is 10 or more, where x is a sum of peak heights of peaks (1713 cm−1, 1780 cm−1) derived from an acid anhydride group and y is a height of a peak (1740 cm−1) derived from an ester group, all peaks determined by infrared ray (IR) absorption spectrum measurement after melt-kneading the adhesive resin composition (A) at 220° C. for 5 minutes and then cooling to room temperature.
摘要翻译：本发明提供了在常温下任何应用中的极性树脂和沸腾和蒸煮处理的应用中具有足够粘合性的粘合剂树脂，包含粘合剂树脂的树脂组合物，还包括具有聚烯烃/极性树脂的层合物，该层压材料包括树脂组合物作为中间层。通过将具有羧酸酐或其衍生物（a1）的树脂与具有羟基或氨基的开环聚合物或缩聚物组分（a2）混合来制备用于极性树脂的粘合剂树脂组合物（A）在两端或一端; 或使（a2）成分与（a1）成分接枝反应，其中（a1）成分的含量使粘合性树脂组合物（A）的酸值为0.1〜50mgKOH / g，氢氧化钾/乙醇溶液，并且（a2）成分的量使得y /（x + y）* 100为10以上，其中x是峰的峰高（1713cm-1,1780 cm-1），y是衍生自酯基的峰（1740cm -1）的高度，所有峰均经熔融捏合粘合树脂组合物后的红外线（IR）吸收光谱测定（A）在220℃下搅拌5分钟，然后冷却至室温。

3. 发明授权

US08211541B2 Multilayer structure and process for producing the same 有权
标题翻译：多层结构及其制造方法
公开(公告)号：US08211541B2
公开(公告)日：2012-07-03
申请号：US12094020
申请日：2005-11-17
申请人： Tomonori Murata , Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
发明人： Tomonori Murata , Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
IPC分类号： B32B15/02 , B32B15/085 , B32B37/12 , B32B37/14
CPC分类号： C09J11/08 , B32B27/08 , B32B27/32 , C08F8/42 , C08L51/06 , C08L53/00 , C08L53/025 , C08L91/06 , C08L2666/24 , C09J7/20 , C09J123/04 , C09J123/0815 , C09J2205/102 , C09J2205/114 , C09J2423/006 , C09J2429/00 , C09J2429/006 , Y10T428/1352 , Y10T428/139 , Y10T428/1393 , Y10T428/249921 , Y10T428/25 , Y10T428/254 , Y10T428/28 , Y10T428/2852 , C08F10/00 , C08L2666/02 , C08L2666/04
摘要： A multilayer structure having a layer of an adhesive resin composition (A) and a layer of another resin (B), wherein the adhesive resin composition (A) includes a thermoplastic resin (a1) containing functional groups of at least one kind selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, and a polyolefin (a2) which does not contain the functional groups, the blending weight ratio (a1/a2) of the thermoplastic resin (a1) to the polyolefin (a2) is 1/99 to 15/85, and particles of the thermoplastic resin (a1) are dispersed with an average particle diameter of 0.1 to 1.2 μm in a matrix of the polyolefin (a2). Consequently, a multilayer structures having satisfactory interlayer adhesion strength can be provided even if the content of the resin having a special functional group in the adhesive resin composition layer is reduced.
摘要翻译：一种具有粘合性树脂组合物（A）的层和另一种树脂（B）的层的多层结构体，其中，所述粘合性树脂组合物（A）包含含有选自以下的至少一种的官能团的热塑性树脂（a1）在水存在下能够转化成硼酸基的硼酸基和含硼基的组和不含官能团的聚烯烃（a2），共混重量比（a1 / a2）的热塑性树脂（a1）与聚烯烃（a2）的摩尔比为1/99〜15/85，热塑性树脂（a1）的粒子在聚烯烃的基体中分散平均粒径为0.1〜1.2μm a2）。因此，即使粘合剂树脂组合物层中具有特殊官能团的树脂的含量降低，也可以提供具有令人满意的层间粘合强度的多层结构。

4. 发明申请

US20080254279A1 Multilayer Structure and Process for Producing the Same 有权
标题翻译：多层结构及其生产工艺
公开(公告)号：US20080254279A1
公开(公告)日：2008-10-16
申请号：US12094020
申请日：2005-11-17
申请人： Tomonori Murata , Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
发明人： Tomonori Murata , Takeyuki Igarashi , Kaoru Ikeda , Tomoyuki Watanabe
IPC分类号： B32B5/16 , B29C47/06
CPC分类号： C09J11/08 , B32B27/08 , B32B27/32 , C08F8/42 , C08L51/06 , C08L53/00 , C08L53/025 , C08L91/06 , C08L2666/24 , C09J7/20 , C09J123/04 , C09J123/0815 , C09J2205/102 , C09J2205/114 , C09J2423/006 , C09J2429/00 , C09J2429/006 , Y10T428/1352 , Y10T428/139 , Y10T428/1393 , Y10T428/249921 , Y10T428/25 , Y10T428/254 , Y10T428/28 , Y10T428/2852 , C08F10/00 , C08L2666/02 , C08L2666/04
摘要： A multilayer structure having a layer of an adhesive resin composition (A) and a layer of another resin (B), wherein the adhesive resin composition (A) includes a thermoplastic resin (a1) containing functional groups of at least one kind selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, and a polyolefin (a2) which does not contain the functional groups, the blending weight ratio (a1/a2) of the thermoplastic resin (a1) to the polyolefin (a2) is 1/99 to 15/85, and particles of the thermoplastic resin (a1) are dispersed with an average particle diameter of 0.1 to 1.2 μm in a matrix of the polyolefin (a2). Consequently, a multilayer structures having satisfactory interlayer adhesion strength can be provided even if the content of the resin having a special functional group in the adhesive resin composition layer is reduced.
摘要翻译：一种具有粘合性树脂组合物（A）的层和另一种树脂（B）的层的多层结构体，其中，所述粘合性树脂组合物（A）包含含有选自以下的至少一种的官能团的热塑性树脂（a1）在水存在下能够转化成硼酸基的硼酸基和含硼基的组和不含官能团的聚烯烃（a2），共混重量比（a1 / a2）的热塑性树脂（a1）与聚烯烃（a2）的摩尔比为1/99〜15/85，热塑性树脂（a1）的粒子在聚烯烃的基体中分散平均粒径为0.1〜1.2μm a2）。因此，即使粘合剂树脂组合物层中具有特殊官能团的树脂的含量降低，也可以提供具有令人满意的层间粘合强度的多层结构。

5. 发明授权

US08759447B2 Compatibilizer and method for producing same 有权
标题翻译：增容剂及其制造方法
公开(公告)号：US08759447B2
公开(公告)日：2014-06-24
申请号：US13499831
申请日：2010-09-30
申请人： Takeyuki Igarashi , Shinji Tai , Tomoyuki Watanabe
发明人： Takeyuki Igarashi , Shinji Tai , Tomoyuki Watanabe
IPC分类号： C08L23/26 , C08L29/04 , C08F216/06
CPC分类号： C08G81/021 , B32B27/18 , B32B27/306 , B32B27/32 , B32B2270/00 , C08J11/04 , C08L23/0861 , C08L51/06 , C08L2207/20 , Y02P20/143 , Y02W30/70 , Y10T428/31938 , C08L2666/24
摘要： A compatibilizer contains a polymer (A) obtained by reacting a modified olefin-based polymer (a-1) with a polymer (a-2) containing a terminal functional group, wherein the modified olefin-based polymer (a-1) is a polymer modified with from 0.01 to 2 mass % of unsaturated carboxylic acid or a derivative thereof, and the polymer (a-2) is a ring opening polymer or condensation polymer containing a terminal functional group, capable of reacting with the modified olefin-based polymer (a-1), at both ends or one end thereof and has a number average molecular weight from 1,500 to 100,000. This provides an excellent compatibilizer. Particularly, upon melt processing a recovery of a multilayer structure including an EVOH layer and a thermoplastic resin layer, a recycling agent is provided that gives sufficient improvement effects to any of the adhesion of a degraded resin to a screw of a molding machine, the generation of die build-up, the generation of fish eyes, and the decrease in transparency.
摘要翻译：增容剂含有通过改性烯烃类聚合物（a-1）与含有末端官能团的聚合物（a-2）反应得到的聚合物（A），其中改性烯烃类聚合物（a-1）为用0.01〜2质量％的不饱和羧酸或其衍生物改性的聚合物，聚合物（a-2）是能够与改性烯烃类聚合物反应的含有末端官能团的开环聚合物或缩聚物（a-1）的两端或一端，数均分子量为1500〜100,000。这提供了优异的增容剂。特别是，在熔融加工回收包括EVOH层和热塑性树脂层的多层结构时，提供了一种再循环剂，其对降解树脂对成形机的螺杆的任何粘合产生足够的改进效果，的造成，鱼眼的产生和透明度的降低。

6. 发明申请

US20110045314A1 MULTILAYER STRUCTURE AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：多层结构及其制造方法
公开(公告)号：US20110045314A1
公开(公告)日：2011-02-24
申请号：US12521587
申请日：2007-12-27
申请人： Takeyuki Igarashi , Tomonori Murata , Tomoyuki Watanabe
发明人： Takeyuki Igarashi , Tomonori Murata , Tomoyuki Watanabe
IPC分类号： B32B27/32 , B32B7/12 , B29C47/04 , B29D7/01
CPC分类号： B32B27/32 , B32B1/02 , B32B7/12 , B32B27/08 , B32B27/18 , B32B27/20 , B32B27/22 , B32B27/28 , B32B27/302 , B32B27/304 , B32B27/306 , B32B27/308 , B32B27/327 , B32B27/36 , B32B2270/00 , B32B2307/30 , B32B2307/306 , B32B2307/50 , B32B2307/514 , B32B2307/714 , B32B2307/72 , B32B2307/7248 , B32B2307/7265 , B32B2439/70 , B32B2439/80 , B32B2605/00 , Y10T428/31924 , Y10T428/31928 , Y10T428/31931
摘要： A multilayer structure having a layer of a polypropylene (A) and a layer of an ethylene-vinyl alcohol copolymer (B) laminated to each other via a layer of an adhesive resin composition (C), wherein the adhesive resin composition (C) contains a thermoplastic resin (c1), having functional groups of at least one kind selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, and an ethylene-α-olefin copolymer (c2), having a density of 0.925 g/cm3 or less and not having the functional groups. Consequently, a multilayer structure can be provided that has a layer of a polypropylene and a layer of an EVOH and has good interlayer adhesion strength.
摘要翻译：一种具有聚丙烯层（A）和乙烯 - 乙烯醇共聚物（B）层的多层结构，其通过粘合树脂组合物（C）层彼此层合，其中粘合剂树脂组合物（C）含有具有选自硼酸基和能够在水存在下转化成硼酸基的含硼基团中的至少一种的官能团的热塑性树脂（c1）和乙烯-α α-烯烃共聚物（c2），其密度为0.925g / cm 3以下，不具有官能团。因此，可以提供具有聚丙烯层和EVOH层并具有良好的层间粘合强度的多层结构。

7. 发明申请

US20120196970A1 COMPATIBILIZER AND METHOD FOR PRODUCING SAME 有权
标题翻译：相容剂及其制造方法
公开(公告)号：US20120196970A1
公开(公告)日：2012-08-02
申请号：US13499831
申请日：2010-09-30
申请人： Takeyuki Igarashi , Shinji Tai , Tomoyuki Watanabe
发明人： Takeyuki Igarashi , Shinji Tai , Tomoyuki Watanabe
IPC分类号： C08L23/26 , C08L29/04 , C08F116/06 , C08F10/00
CPC分类号： C08G81/021 , B32B27/18 , B32B27/306 , B32B27/32 , B32B2270/00 , C08J11/04 , C08L23/0861 , C08L51/06 , C08L2207/20 , Y02P20/143 , Y02W30/70 , Y10T428/31938 , C08L2666/24
摘要： A compatibilizer contains a polymer (A) obtained by reacting a modified olefin-based polymer (a-1) with a polymer (a-2) containing a terminal functional group, wherein the modified olefin-based polymer (a-1) is a polymer modified with from 0.01 to 2 mass % of unsaturated carboxylic acid or a derivative thereof, and the polymer (a-2) is a ring opening polymer or condensation polymer containing a terminal functional group, capable of reacting with the modified olefin-based polymer (a-1), at both ends or one end thereof and has a number average molecular weight from 1,500 to 100,000. This provides an excellent compatibilizer. Particularly, upon melt processing a recovery of a multilayer structure including an EVOH layer and a thermoplastic resin layer, a recycling agent is provided that gives sufficient improvement effects to any of the adhesion of a degraded resin to a screw of a molding machine, the generation of die build-up, the generation of fish eyes, and the decrease in transparency.
摘要翻译：增容剂含有通过改性烯烃类聚合物（a-1）与含有末端官能团的聚合物（a-2）反应得到的聚合物（A），其中改性烯烃类聚合物（a-1）为用0.01〜2质量％的不饱和羧酸或其衍生物改性的聚合物，聚合物（a-2）是能够与改性烯烃类聚合物反应的含有末端官能团的开环聚合物或缩聚物（a-1）的两端或一端，数均分子量为1500〜100,000。这提供了优异的增容剂。特别是，在熔融加工回收包括EVOH层和热塑性树脂层的多层结构时，提供了一种再循环剂，其对降解树脂对成形机的螺杆的任何粘合产生足够的改进效果，的造成，鱼眼的产生和透明度的降低。

8. 发明申请

US20100119746A1 RESIN COMPOSITION AND MULTILAYER STRUCTURE 审中-公开
标题翻译：树脂组合物和多层结构
公开(公告)号：US20100119746A1
公开(公告)日：2010-05-13
申请号：US12524934
申请日：2008-01-28
申请人： Takeyuki Igarashi , Tomonori Murata , Tomoyuki Watanabe
发明人： Takeyuki Igarashi , Tomonori Murata , Tomoyuki Watanabe
IPC分类号： B32B1/02 , C08L43/00 , B32B27/08 , B29C47/06
CPC分类号： C09J153/02 , B32B1/00 , B32B1/02 , B32B27/08 , B32B27/18 , B32B27/20 , B32B27/22 , B32B27/28 , B32B27/302 , B32B27/304 , B32B27/306 , B32B27/308 , B32B27/32 , B32B27/322 , B32B27/34 , B32B27/36 , B32B27/40 , B32B2250/24 , B32B2270/00 , B32B2307/412 , B32B2307/50 , B32B2307/558 , B32B2307/714 , B32B2307/718 , B32B2307/72 , B32B2307/7248 , B32B2439/70 , B32B2439/80 , B32B2605/00 , C08L23/0815 , C08L23/10 , C08L23/16 , C08L51/06 , C08L53/02 , C08L53/025 , C08L2205/02 , C08L2205/03 , C08L2666/02 , C08L2666/04 , C09J123/04 , C09J123/10 , C09J153/025 , Y10T428/1352 , Y10T428/31909 , Y10T428/3192
摘要： An object of the present invention is to provide a resin composition suitable for adhering a layer of a base material, such as polyolefins, and a layer of a barrier resin, such as ethylene-vinyl alcohol copolymers. The object is achieved by a resin composition (A) including: a thermoplastic resin (a1) having functional groups of at least one kind selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, a polyolefin (a2) not having the functional groups, and a thermoplastic elastomer (a3) not having the functional groups, wherein the thermoplastic resin (a1) is contained 1 to 20 parts by mass and the thermoplastic elastomer (a3) is contained 3 to 50 parts by mass in terms of 100 parts by mass of the polyolefin (a2).
摘要翻译：本发明的目的是提供一种适用于粘附基材例如聚烯烃的层和一层阻隔树脂如乙烯 - 乙烯醇共聚物的树脂组合物。该目的是通过树脂组合物（A）实现的，其包括：具有选自硼酸基和能够转化为硼酸的含硼基团中的至少一种的官能团的热塑性树脂（a1）不存在官能团的聚烯烃（a2）和不具有官能团的热塑性弹性体（a3），热塑性树脂（a1）的含量为1〜20质量份，热塑性弹性体（a3）以聚烯烃（a2）100质量份计含有3〜50质量份。

9. 发明申请

US20110097527A1 MOLDED ARTICLE AND METHOD FOR PRODUCTION THEREOF 有权
标题翻译：模制品及其生产方法
公开(公告)号：US20110097527A1
公开(公告)日：2011-04-28
申请号：US12297472
申请日：2007-04-17
申请人： Kaoru Ikeda , Masakazu Nakaya , Kazuhiro Kurosaki , Tomoyuki Watanabe
发明人： Kaoru Ikeda , Masakazu Nakaya , Kazuhiro Kurosaki , Tomoyuki Watanabe
IPC分类号： B32B27/30 , C08F2/54 , C08F8/08 , C08F2/48 , C08F2/46
CPC分类号： B29C49/0005 , B29C45/0001 , B29C47/0004 , B29C47/0021 , B29C47/14 , B29C47/6056 , B29C47/6062 , B29C47/6093 , B29C47/767 , B29C49/04 , B29C51/002 , B29C61/003 , B29K2029/04 , B29K2063/00 , B29K2995/0049 , B32B27/306 , B32B2307/736 , B32B2439/00 , B32B2451/00 , B32B2597/00 , B32B2607/02 , C08J3/24 , C08J3/248 , C08J5/18 , C08J2329/02 , C08J2329/04 , C08L29/04 , Y10T428/1379 , Y10T428/31507 , Y10T428/31511
摘要： A shaped article including a modified ethylene-vinyl alcohol copolymer (C), wherein the modified ethylene-vinyl alcohol copolymer (C) is a product obtained by modifying an unmodified ethylene-vinyl alcohol copolymer (A) with an epoxy compound (B) having a double bond and has a degree of modification with the epoxy compound (B) of 0.1 to 10 mol % based on the monomer units of the ethylene-vinyl alcohol copolymer (A), and at least a part of the modified ethylene-vinyl alcohol copolymer (C) is crosslinked, and the gel fraction of the shaped article is 3% by weight or more. Thereby, a shaped article which contains almost no harmful crosslinking agent and which is excellent in hot water resistance, heat resistance and a gas barrier property is provided.
摘要翻译：一种包含改性乙烯 - 乙烯醇共聚物（C）的成型制品，其中改性乙烯 - 乙烯醇共聚物（C）是通过用未改性的乙烯 - 乙烯醇共聚物（A）与环氧化合物（B）双键，并且相对于乙烯 - 乙烯醇共聚物（A）的单体单元，环氧化合物（B）的修饰度为0.1〜10摩尔％，至少一部分改性乙烯 - 乙烯醇共聚物（C）交联，成型制品的凝胶分数为3重量％以上。因此，提供几乎不含有害交联剂并且耐热水性，耐热性和阻气性优异的成型制品。

10. 发明申请

US20100280178A1 MODIFIED ETHYLENE-VINYL ALCOHOL COPOLYMER AND METHOD FOR THE PRODUCTION THEREOF 有权
标题翻译：改性乙烯 - 乙烯醇共聚物及其生产方法
公开(公告)号：US20100280178A1
公开(公告)日：2010-11-04
申请号：US12776598
申请日：2010-05-10
申请人： Kaoru IKEDA , Shinji Tai , Kouta Isoyama , Tomoyuki Watanabe
发明人： Kaoru IKEDA , Shinji Tai , Kouta Isoyama , Tomoyuki Watanabe
IPC分类号： C08F16/06
CPC分类号： C08F8/00 , Y10T428/13 , Y10T428/1352 , Y10T428/1359 , Y10T428/1379 , Y10T428/1383 , Y10T428/139 , Y10T428/31551 , Y10T428/3175 , Y10T428/31797 , Y10T428/31855 , C08F216/06 , C08F8/18 , C08F8/40 , C08F8/42 , C08F8/34
摘要： Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.
摘要翻译：提供乙烯含量为5〜55摩尔％的改性乙烯 - 乙烯醇共聚物（C），其含有0.3〜40摩尔％的特定结构单元（I），可以通过使乙烯 - 乙烯醇共聚物（A）与单官能环氧化合物（B）的分子量不大于500.这可以通过改性乙烯 - 乙烯醇共聚物（C）的制备方法制备，该方法包括熔融和捏合乙烯 - 乙烯醇共聚物（A）与单官能环氧化合物（B）的混合物。改性乙烯 - 乙烯醇共聚物（C）由于其中结合有特定结构单元（I）而在透明性，拉伸性，柔软性和挠曲性方面优于未改性的乙烯 - 乙烯醇共聚物（A），因此可以使用作为需要上述性能的各种应用中的阻挡材料。

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