Polypropylene-based adhesive compositions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 8, 2004
Grant Date -
Feb 14, 2002
app pub date -
Dec 21, 2000
filing date -
Dec 22, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C.sub.4 to C.sub.20 .alpha.-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238(B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRs) equal to and above 250.degree. dg/min. at 230.degree. C. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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