Copolymerized polyester having excellent transparency and gas barrier properties
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 1990
Grant Date -
N/A
app pub date -
Mar 24, 1989
filing date -
Mar 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed herein are a copolymerized polyester produced by copolymerizing a dicarboxylic acid component (A) comprising (a) 10 to 90 mol % of isophthalic acid or an ester forming derivative thereof, (b) 10 to 60 mol % of a phenylenedi(oxyacetic acid) represented by the formula [I]: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atom, an alkoxy group having 1 to 6 carbon atom, a phenyl group, a chlorine atom, a bromine atom or a fluorine atom), or an ester forming derivative thereof, and (c) 0 to 45 mol % of a naphthalenedicarboxylic acid or an ester forming derivative thereof, and a diol component (B); and a polyester composition containing the copolymerized polyester.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully