Ethylene (co) polymers, and laminate and hollow molding made by using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 6, 2004
Grant Date -
Mar 20, 2003
app pub date -
Jun 6, 2002
filing date -
Jun 24, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Ethylene (co)polymers each having specified values of (a) density, (b) molecular weight distribution (Mw/Mn), (c) relationship between die swell (DS) and shear rate (.gamma.) in a region of shear rate (.gamma.), (d) relationship between stress (.sigma.) and maximum stress (.sigma. max) in a stress-strain curve in uniaxial stretching, (e) the ratio of sample diameter to initial sample diameter and the time for sample breakage during uniaxial stretching under a constant tension, blow molding process in which the thickness of a parison is adjusted by using the said ethylene (co)polymer, and the method of improving fire resistance in moldings, laminates and hollow moldings made by using the same. The ethylene (co)polymers are excellent in drawdown resistance, puncture resistance, parison control response, pinch-off properties, durability, and fire resistance, by using it, parison thickness can be controlled freely in blow molding, and large blow moldings having complicated shapes excellent in durability and fire resistance can be obtained.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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