公开(公告)号：US20240110052A1

公开(公告)日：2024-04-04

申请号：US18267512

申请日：2021-12-16

Applicant: KURARAY CO., LTD.

Inventor： Mizuko Oshita ,  Luyten Wout

IPC: C08L29/04 ,  B29C48/21 ,  B32B27/30

CPC classification number: C08L29/04 ,  B29C48/21 ,  B32B27/306 ,  C08L2201/14 ,  C08L2205/025 ,  C08L2205/18

Abstract: The present disclosure provides a resin pellet group including a pellet (A1) containing an ethylene-vinyl alcohol copolymer (a1), and a pellet (A2) containing an ethylene-vinyl alcohol copolymer (a2).

公开(公告)号：US20240010799A1

公开(公告)日：2024-01-11

申请号：US18037994

申请日：2021-12-16

Applicant: KURARAY CO., LTD.

Inventor： Rina Hoshika ,  Yasushi Morihara

IPC: C08J3/12 ,  C08L23/08 ,  C08L29/04

CPC classification number: C08J3/12 ,  C08L23/0846 ,  C08L29/04 ,  C08L2205/025 ,  C08L2205/22 ,  C08L2201/14 ,  C08L2203/30 ,  C08L2203/16

Abstract: A resin pellet group according to the present invention includes a pellet (A1) containing an ethylene-vinyl alcohol copolymer (a1), and a pellet (A2) containing an ethylene-vinyl alcohol copolymer (a2). Here, the pellet (A1) has a melt tension of 10 mN or more and 30 mN or less at a take-up speed of 50 m/min and 210° C., and the pellet (A2) has a melt tension of 2 mN or more and less than 10 mN at a take-up speed of 50 m/min and 210° C. Furthermore, an ethylene unit content (ECa1) of the ethylene-vinyl alcohol copolymer (a1) is different from an ethylene unit content (ECa2) of the ethylene-vinyl alcohol copolymer (a2), and a mass ratio (A1/A2) of the pellet (A1) to the pellet (A2) is set to 20/80 or more and 99/1 or less.

公开(公告)号：US20230357494A1

公开(公告)日：2023-11-09

申请号：US18019592

申请日：2021-08-06

Applicant: BASF SE

Inventor： Erik Gubbels ,  Maximilian Lehenmeier

IPC: C08F136/06 ,  C08G63/183 ,  C08G63/82 ,  C08L67/02

CPC classification number: C08G63/183 ,  C08F136/06 ,  C08G63/826 ,  C08L67/02 ,  C08L2201/14

Abstract: In a first aspect, the invention relates to a polymer composition comprising (i) a polyester; and (ii) an oxidizable organic polymer consisting of a branched or unbranched alkyl chain, which comprises at least one oxidizable C═C double bond. A second aspect of the invention relates to the use of the polymer composition according to the first aspect for the preparation of a polymer article. In a third aspect, the invention relates to a polymer article comprising the polymer composition according to the first aspect. In a fourth aspect, the invention relates to a method for preparing a polymer composition having oxygen consumption activity.

公开(公告)号：US20230340172A1

公开(公告)日：2023-10-26

申请号：US18041253

申请日：2021-08-11

Applicant: KURARAY CO., LTD.

Inventor： Masaki Kato ,  Yuta Taoka ,  Yoriko Imaoka ,  Ayumu Yamamoto ,  Yasuhiro Tajima

IPC: C08F216/06 ,  C08L23/08 ,  C08F2/20 ,  C09K8/24 ,  C09K8/035 ,  C09D129/04 ,  C04B24/26

CPC classification number: C08F216/06 ,  C08L23/0861 ,  C08F2/20 ,  C09K8/24 ,  C09K8/035 ,  C09D129/04 ,  C04B24/2623 ,  C08L2201/14

Abstract: The present invention provides a vinyl alcohol polymer having properties comparable to the properties of vinyl alcohol polymers of solely petroleum origin, and, in using the vinyl alcohol polymer (PVA), saves petroleum resources, and reduces carbon dioxide emissions in production processes. The present invention relates to a vinyl alcohol polymer (X) obtained through saponification after polymerization of a plant-derived vinyl ester monomer (A) and a petroleum-derived vinyl ester monomer (B), and having a mole ratio (A)/(B) of 5/95 to 100/0.

公开(公告)号：US11692085B2

公开(公告)日：2023-07-04

申请号：US17200603

申请日：2021-03-12

Applicant: University of South Florida

Inventor： Yasin Kocak ,  Manoj K. Ram ,  Venkat Bhethanabotla

IPC: C08L23/06 ,  C08L23/12

CPC classification number: C08L23/06 ,  C08L23/12 ,  C08L2201/08 ,  C08L2201/14 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066

Abstract: Described herein are geomembranes with improved chemical, physical, and mechanical properties. In one aspect, the geomembrane includes polyethylene, a phenolic antioxidant, a phosphite antioxidant, a hindered amine light stabilizer, and carbon black. Also described herein are methods for making the geomembranes described herein.

公开(公告)号：US20230192983A1

公开(公告)日：2023-06-22

申请号：US17925549

申请日：2021-05-14

Applicant: University of Guelph

Inventor： Amar MOHANTY ,  Feng WU ,  Manjusri MISRA ,  Akhilesh PAL ,  Arturo RODRIGUEZ-URIBE ,  Tao WANG

IPC: C08K3/04 ,  B65D85/804 ,  B65D1/34 ,  C08K3/34 ,  C08L67/02 ,  C08L67/04 ,  C08J5/18

CPC classification number: C08K3/04 ,  B65D85/8043 ,  B65D1/34 ,  C08K3/34 ,  C08L67/02 ,  C08L67/04 ,  C08J5/18 ,  C08L2201/06 ,  C08L2201/14 ,  C08L2203/16 ,  C08L2203/30 ,  C08L2205/08 ,  C08K2003/343 ,  C08J2367/02 ,  C08J2367/04 ,  C08J2403/02 ,  C08J2451/00

Abstract: A biodegradable composite comprising a polymeric matrix including but not limited to poly lactide (PLA), poly (butylene succinate) 20 (PBS), poly(butylene succinate adipate) (PBSA), including bio-based PBSA (BioPBSA), poly(butylene adipate-co-terephthalate) (PBAT), polycaprolactone (PCL), polyhydroxyalkanoate (PHA(s)), poly(3-hydroxy)butyrate (PHB), poly(3-hydroxy-butyrate-hydroxyvalerate) (PHBV), copolyester of the monomers 1.4-butanediol, adipic acid and terephthalic acid (Ecoflex™) and polypropylene carbonate (PPC), and biocarbon, a.k.a. biochar or pyrolyzed biomass as a sustainable filler. The biodegradable composite achieves high oxygen barrier with balanced water barrier. Also, a method of manufacturing the biodegradable composite and articles of manufacturing comprising the biodegradable composite. The articles of manufacturing have application in limiting gas permeation into a package and extending shelf life of a material.

公开(公告)号：US20190248954A1

公开(公告)日：2019-08-15

申请号：US16395599

申请日：2019-04-26

Applicant: E I DU PONT DE NEMOURS AND COMPANY

Inventor： FREDRIK NEDERBERG ,  BHUMA RAJAGOPALAN ,  JULIUS URADNISHECK

IPC: C08G63/16 ,  C08L67/02 ,  B65D81/28 ,  C08L67/06 ,  B65D1/02 ,  C09D167/06 ,  B32B27/06 ,  C08J5/18 ,  C08G63/181 ,  C09D167/02 ,  B65D1/40 ,  D01F6/62

CPC classification number: C08G63/16 ,  B32B27/06 ,  B32B2250/03 ,  B32B2270/00 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2367/00 ,  B65D1/0215 ,  B65D1/40 ,  B65D81/28 ,  C08G63/181 ,  C08J5/18 ,  C08J2335/02 ,  C08J2367/02 ,  C08L67/02 ,  C08L67/06 ,  C08L2201/14 ,  C08L2205/025 ,  C09D167/02 ,  C09D167/06 ,  D01F6/62 ,  Y10T428/1397 ,  Y10T428/31504 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/31797 ,  Y10T428/31938

Abstract: Disclosed herein are polyesters and articles made therefrom. The article comprising a substrate comprising a first surface and a second surface, the second surface in contact with an outside environment, wherein the substrate comprises a polymer comprising poly(trimethylene furandicarboxylate) (PTF), and wherein the polymer provides an improvement in gas barrier properties of the substrate as compared to a substrate comprising nascent poly(ethylene terephthalate) (PET).

公开(公告)号：US20190218366A1

公开(公告)日：2019-07-18

申请号：US16337170

申请日：2017-09-28

Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.

Inventor： Yukiko HIRAYAMA ,  Toshiki YAMADA ,  Yoshiki SAWA ,  Kanna MURAMATSU

IPC: C08K5/3417 ,  C08L67/02 ,  B29B11/14

CPC classification number: C08K5/3417 ,  B29B11/14 ,  B29B2911/1412 ,  B65D1/00 ,  C08J5/00 ,  C08K2201/012 ,  C08L67/02 ,  C08L101/00 ,  C08L2201/14 ,  C08L2203/10

Abstract: A formed body made from a resin and having a wall portion, the wall portion containing, as an oxygen-absorbing component, a non-polymeric oxygen-absorbing organic component in an amount of 0.5 to 2.5% by mass, and having a ratio of oxygen permeation rates expressed by the following formula that is suppressed to be not more than 42%: Ratio of oxygen permeation rates=(P/P0)×100 wherein P is an oxygen permeation rate (cc) through the wall portion, and P0 is an oxygen permeation rate (cc) through the wall portion of the same thickness but without containing the oxygen-absorbing component.

公开(公告)号：US20180327600A1

公开(公告)日：2018-11-15

申请号：US15977749

申请日：2018-05-11

Applicant: REGENESIS BIOREMEDIATION PRODUCTS

Inventor： KRISTEN A. THORESON ,  HIEU NGUYEN ,  SCOTT B. WILSON

IPC: C08L95/00

CPC classification number: C08L95/005 ,  C08L9/04 ,  C08L15/02 ,  C08L2201/14 ,  C08L2201/52

Abstract: Compositions for forming an improved vapor mitigation barrier are contemplated, such compositions being formed as an aqueous mixture of an asphalt component and a latex component, with the latex component including a chemically resistant latex, the chemically resistant latex being an acrylonitrile butadiene copolymer, an elastomeric fluoropolymer, or both. Such compositions, when cured and formed into a vapor mitigation barrier, may be seen to substantially mitigate diffusion of chlorinated hydrocarbons across the barriers. Also contemplated are methods for forming such vapor mitigation barriers, as well as vapor mitigation barrier products formed via the application of such compositions to various substrates.

公开(公告)号：US20180327578A1

公开(公告)日：2018-11-15

申请号：US15773183

申请日：2016-11-02

Applicant: KURARAY CO., LTD.

Inventor： Takeyuki IGARASHI ,  Wataru HIROSE

IPC: C08L23/08 ,  C08L53/02 ,  C08L29/04 ,  C08K3/26 ,  B32B27/30 ,  B32B27/32

CPC classification number: C08L23/08 ,  B32B27/28 ,  B32B27/302 ,  B32B27/306 ,  B32B27/32 ,  B32B2439/00 ,  B65D1/00 ,  B65D1/02 ,  C08K3/26 ,  C08L23/22 ,  C08L29/04 ,  C08L53/00 ,  C08L53/02 ,  C08L2201/14 ,  C08L2203/16 ,  C08L2203/30 ,  C08K13/02 ,  C08K3/01

Abstract: Provided is a resin composition, comprising: an ethylene-vinyl alcohol copolymer (A); an isobutylene-based copolymer (B) containing a halogen atom; and a halogen scavenger (C), wherein a mass ratio (B/A) of the isobutylene-based copolymer (B) to the ethylene-vinyl alcohol copolymer (A) is from 5/95 to 45/55, and a content of the halogen scavenger (C) is from 0.01 to 1 part by mass based on 100 parts by mass of a total of the ethylene-vinyl alcohol copolymer (A) and the isobutylene-based copolymer (B). Such a resin composition is excellent in gas barrier properties and flexibility and stably produced over a long period of time.