Title:
GAS BARRIER COATING FILMS
Document Type and Number:
WIPO Patent Application WO/2023/104113
Kind Code:
A1
Abstract:
A barrier coating comprising a polyvinyl alcohol, a polyacrylic acid, and a carbodiimide wherein the barrier film is formed at less than 120℃ is disclosed. A laminate comprising the barrier coating comprising a polyvinyl alcohol, a polyacrylic acid, and a carbodiimide is also disclosed. The polyacrylic acid can comprise a poly (meth) acrylic acid with a molecular weight from 2000 to 400, 000g/mol, and a degree of neutralization of from 2 to 50%. The polyvinyl alcohol can have a saponification degree of at least 80% and a molecular weight of from 10, 000 to 300, 000 g/mol. The disclosed barrier coating provides good OTR at high humidity without the need for high curing temperatures or non-commercially viable cure times.
Inventors:
VUONG SHARON M (US)
QIN SHUANG (US)
SHAH ANDREW B (US)
SHARMA RAHUL (US)
RAO YUANQIAO (US)
EINSLA MELINDA L (US)
YAN QIANGQIANG (CN)
SONG XIAOMEI (CN)
HE YAFEI (CN)
CHEN HONGYU (CN)
EINSLA BRIAN R (US)
DRUMRIGHT RAY E (US)
ZHANG XIANGYI (US)
QIN SHUANG (US)
SHAH ANDREW B (US)
SHARMA RAHUL (US)
RAO YUANQIAO (US)
EINSLA MELINDA L (US)
YAN QIANGQIANG (CN)
SONG XIAOMEI (CN)
HE YAFEI (CN)
CHEN HONGYU (CN)
EINSLA BRIAN R (US)
DRUMRIGHT RAY E (US)
ZHANG XIANGYI (US)
Application Number:
PCT/CN2022/137309
Publication Date:
June 15, 2023
Filing Date:
December 07, 2022
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
ROHM & HAAS (US)
DOW SILICONES CORP (US)
VUONG SHARON M (US)
QIN SHUANG (US)
SHAH ANDREW B (US)
SHARMA RAHUL (US)
SEKHARAN MANESH NADUPPARAMBIL (US)
RAO YUANQIAO (US)
EINSLA MELINDA L (US)
YAN QIANGQIANG (CN)
ROHM & HAAS (US)
DOW SILICONES CORP (US)
VUONG SHARON M (US)
QIN SHUANG (US)
SHAH ANDREW B (US)
SHARMA RAHUL (US)
SEKHARAN MANESH NADUPPARAMBIL (US)
RAO YUANQIAO (US)
EINSLA MELINDA L (US)
YAN QIANGQIANG (CN)
International Classes:
C08J5/18; B32B27/30; C09D129/04; C09D133/02; C09D177/02
Foreign References:
| JP2001164174A | 2001-06-19 |
Attorney, Agent or Firm:
WU, FENG & ZHANG (CN)
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