BR112017000444A2 - copolímero de álcool etileno-vinílico, composição de resina, e artigo moldado obtido utilizando os mesmos - Google Patents

copolímero de álcool etileno-vinílico, composição de resina, e artigo moldado obtido utilizando os mesmos

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Publication number
BR112017000444A2
BR112017000444A2 BR112017000444A BR112017000444A BR112017000444A2 BR 112017000444 A2 BR112017000444 A2 BR 112017000444A2 BR 112017000444 A BR112017000444 A BR 112017000444A BR 112017000444 A BR112017000444 A BR 112017000444A BR 112017000444 A2 BR112017000444 A2 BR 112017000444A2
Authority
BR
Brazil
Prior art keywords
ethylene vinyl
vinyl alcohol
alcohol copolymer
molecular weight
resin composition
Prior art date
Application number
BR112017000444A
Other languages
English (en)
Other versions
BR112017000444B1 (pt
Inventor
Miyake Hatsuyo
Kawai Hiroshi
Fujioka Syunsuke
Nonaka Yasuhiro
Original Assignee
Kuraray Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuraray Co filed Critical Kuraray Co
Publication of BR112017000444A2 publication Critical patent/BR112017000444A2/pt
Publication of BR112017000444B1 publication Critical patent/BR112017000444B1/pt

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Classifications

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    • C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
    • C08F216/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an alcohol radical
    • C08F216/04—Acyclic compounds
    • C08F216/06—Polyvinyl alcohol ; Vinyl alcohol
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    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/02—Ethene
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    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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Abstract

a presente invenção refere-se a, um copolímero de álcool etileno-vinílico apresentando uma aparência excepcional e ocorrência minimizada de descoloração, defeitos de filme, e falhas de filme tais como estrias, juntamente com, apresentando viabilidade a longo prazo excepcional durante moldagem por fusão; uma composição de resina; e um artigo moldado do mesmo. a presente invenção refere-se a um copolímero de álcool etileno-vinílico (a) obtido por meio de saponificação de um copolímero de etileno e éster vinílico, em que o copolímero de álcool etileno-vinílico (a) é caracterizado pelo fato de que o peso molecular medido utilizando um cromatógrafo de permeação em gel equipado com um detector de índice refrativo diferencial e um detector de absorvência de luz ultravioleta e visível satisfaz as condições representadas por fórmula (1) após 50 horas de tratamento térmico a 220oc em uma atmosfera de nitrogênio. (ma-mb)/ma < 0,45... (1) ma: peso molecular equivalente a metacrilato de polimetila no valor máximo do pico medido pelo detector de índice refrativo diferencial; mb: peso molecular equivalente a metacrilato de polimetila no valor máximo do pico de absorção sob um comprimento de ondas de 220 nm conforme medido pelo detector de absorvência de luz ultravioleta e visível.
BR112017000444-5A 2014-07-11 2015-07-10 Composição de resina, filme, filme depositado por vapor, estrutura de multicamadas, recipiente termoformado, produto moldado por sopro, e recipiente de combustível BR112017000444B1 (pt)

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WO2016006694A1 (ja) 2016-01-14
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EP3168242B1 (en) 2020-10-21
US20170183426A1 (en) 2017-06-29
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EP3587460B1 (en) 2023-04-05
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