公开(公告)号：US20160053036A1

公开(公告)日：2016-02-25

申请号：US14842955

申请日：2015-09-02

Applicant: Kuraray Co., Ltd.

Inventor： Shogo NAKAZAWA ,  Hiroshi KAWAI

IPC: C08F216/06 ,  C08K5/09 ,  C08K3/32 ,  C08K3/38

CPC classification number: C08F216/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  B32B2270/00 ,  C08K3/32 ,  C08K3/38 ,  C08K5/07 ,  C08K5/09 ,  C08K5/55 ,  C08K2003/321 ,  C08K2003/329 ,  C08L29/04

Abstract: The present invention provides a resin composition containing (A) an ethylene-vinyl alcohol copolymer and (B) an unsaturated aldehyde (B), in which the content of the unsaturated aldehyde (B) with respect to the resin composition containing the ethylene-vinyl alcohol copolymer is 0.01 ppm or more and 100 ppm or less. The unsaturated aldehyde (B) is preferably crotonaldehyde, 2,4-hexadienal, 2,4,6-octatrienal or a combination thereof. In addition, it is preferred that the resin composition further contains a boron compound, and the content of the boron compound is 100 ppm or more and 5,000 ppm or less. Also, it is preferred that the resin composition further contains a conjugated polyene compound, and the content of the conjugated polyene compound is 0.01 ppm or more and 1,000 ppm or less.

公开(公告)号：US20160229987A1

公开(公告)日：2016-08-11

申请号：US15023238

申请日：2014-09-17

Applicant: KURARAY CO., LTD.

Inventor： Hiroshi KAWAI ,  Shogo NAKAZAWA

IPC: C08K5/098 ,  C08K5/07 ,  C08K5/09 ,  B65D1/26

CPC classification number: C08K5/098 ,  B32B1/02 ,  B32B15/085 ,  B32B15/09 ,  B32B27/08 ,  B32B27/18 ,  B32B27/306 ,  B32B27/32 ,  B32B27/36 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2250/242 ,  B32B2250/40 ,  B32B2270/00 ,  B32B2272/00 ,  B32B2307/7244 ,  B32B2307/732 ,  B32B2307/738 ,  B32B2439/02 ,  B32B2439/06 ,  B32B2439/40 ,  B32B2439/60 ,  B32B2439/70 ,  B32B2439/80 ,  B65D1/26 ,  C08K5/07 ,  C08K5/09 ,  C08L29/04

Abstract: Provided is a thermoformed container having a superior appearance as a result of inhibition of coloring and generation of defects during the melt molding, having sufficient strength, and further having a self-purge feature in a production process. The thermoformed container includes an EVOH layer (A) containing an ethylene-vinyl alcohol copolymer (I) as a principal component, wherein the EVOH layer (A) contains a carbonyl compound (II), the carbonyl compound (II) is an unsaturated aldehyde (II-1), a saturated aldehyde (II-2), a saturated ketone (II-3) or a combination thereof, and the content of the carbonyl compound (II) in the EVOH layer (A) is 0.01 ppm or greater and 100 ppm or less. The carbonyl compound (II) is preferably an unsaturated aldehyde (II-1), and the unsaturated aldehyde (II-1) is preferably an unsaturated aliphatic aldehyde.

Abstract translation: 提供一种热成型容器，其由于在熔融成型期间抑制着色和产生缺陷而具有优异的外观，具有足够的强度，并且在生产过程中还具有自净化特征。 热成型容器包括含有乙烯 - 乙烯醇共聚物（I）作为主要成分的EVOH层（A），其中EVOH层（A）含有羰基化合物（II），羰基化合物（II）是不饱和醛 （II-1），饱和醛（II-2），饱和酮（II-3）或其组合，EVOH层（A）中羰基化合物（II）的含量为0.01ppm以上 和100ppm以下。 羰基化合物（II）优选为不饱和醛（II-1），不饱和醛（II-1）优选为不饱和脂肪族醛。

公开(公告)号：US20160221313A1

公开(公告)日：2016-08-04

申请号：US15026446

申请日：2014-10-02

Applicant: KURARAY CO., LTD.

Inventor： Hiroshi KAWAI ,  Shogo NAKAZAWA

IPC: B32B27/32 ,  B32B27/08 ,  C08L23/06

CPC classification number: B32B27/32 ,  B29C49/0005 ,  B29C51/002 ,  B29K2023/083 ,  B32B27/08 ,  B32B27/18 ,  B32B27/306 ,  B32B2307/558 ,  B32B2307/738 ,  B32B2439/00 ,  B32B2439/60 ,  C08K5/07 ,  C08K5/098 ,  C08L23/06 ,  C08L23/0861 ,  C08L29/04 ,  C08L51/06 ,  C08L2201/08 ,  C08L2203/30 ,  C08L2205/06 ,  C08L2207/062

Abstract: Provided is a resin composition exhibiting inhibited generation of defects in thermoforming, and having a superior appearance and sufficient strength. Also provided are a multilayer structure and a thermoformed container that exhibit superior appearance characteristics and impact resistance even when a recovered material obtained by repeatedly recovering a remnant, a scrap and the like of a sheet containing the resin composition is used. The resin composition contains: an ethylene-vinyl alcohol copolymer (A); a polyolefin (B); and a carbonyl compound (C) having 3 to 8 carbon atoms. The carbonyl compound (C) is an unsaturated aldehyde (C-1), a saturated aldehyde (C-2), a saturated ketone (C-3) or a combination thereof, and the content of the carbonyl compound (C) is 0.01 ppm or greater and 100 ppm or less.

Abstract translation: 本发明提供一种表现出抑制热成型缺陷产生的树脂组合物，具有优异的外观和足够的强度。 即使使用通过反复回收含有树脂组合物的片材的残留物，废料等而获得的回收材料，也提供了表现出优异的外观特性和耐冲击性的多层结构和热成型容器。 树脂组合物含有：乙烯 - 乙烯醇共聚物（A）; 聚烯烃（B）; 和碳原子数为3〜8的羰基化合物（C）。 羰基化合物（C）为不饱和醛（C-1），饱和醛（C-2），饱和酮（C-3）或其组合，羰基化合物（C）的含量为0.01 ppm以上且100ppm以下。

公开(公告)号：US20190248115A1

公开(公告)日：2019-08-15

申请号：US16307006

申请日：2017-06-29

Applicant: KURARAY CO., LTD.

Inventor： Takeyuki IGARASHI ,  Shogo NAKAZAWA

IPC: B32B27/08 ,  B32B27/30 ,  B32B7/12 ,  B32B27/32 ,  B32B27/18

CPC classification number: B32B27/08 ,  B32B7/12 ,  B32B27/00 ,  B32B27/18 ,  B32B27/28 ,  B32B27/306 ,  B32B27/32 ,  B32B2250/04 ,  B32B2250/246 ,  B32B2264/105 ,  B32B2307/558 ,  B32B2307/7265 ,  B32B2439/40 ,  B60K15/03 ,  B60K15/03177 ,  B60K2015/03493 ,  B65D1/00

Abstract: Provided is a fuel container composed of a multilayer structure containing: an ethylene-vinyl alcohol copolymer (A) layer; an adhesive resin (B) layer; a high-density polyethylene (C) layer; and a resin composition (D) layer, wherein the ethylene-vinyl alcohol copolymer (A) contains 15 to 44 mol % of ethylene, the adhesive resin (B) is a maleic anhydride-modified polyolefin having an acid value of 0.1 to 10 mgKOH/g and containing 1 to 8.5 μmol/g of magnesium element, calcium element, zinc element, or a combination thereof, the resin composition (D) contains the ethylene-vinyl alcohol copolymer (A), the adhesive resin (B), and the high-density polyethylene (C), the thickness of the (A) layer, the (B) layer, and the (C) layer satisfies specific conditions, and the ethylene-vinyl alcohol copolymer (A), the adhesive resin (B), and the high-density polyethylene (C) satisfies specific conditions. The fuel container is excellent in fuel barrier properties and impact resistance and enables stable production.