Impact resistant rigid PVC compositions using hydrocarbon rubbers and chlorinated polyethylene as impact modifiers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 31, 2003
app pub date -
Dec 11, 2002
filing date -
Dec 14, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a) a vinyl chloride polymer, b) at least one ethylene/alpha-olefin copolymer, said copolymer having a density of 0.858 to 0.91 g/cc and having a melt index from an I.sub.10 value of 0.1 to an I.sub.2 value of 50, preferably from an I.sub.10 value of 0.1 to an I.sub.2 value of 30, and most preferably from an I.sub.10 value of 0.1 to an I.sub.2 value of 20, and c) at least one randomly chlorinated olefin polymer having a chlorine content of from 20-40 percent by weight, the feedstock for said chlorinated olefin polymer having a melt index from an I.sub.10 value of 0.1 to an I.sub.2 value of 10. Optionally, these impact resistant polyvinyl.chloride compositions may have inorganic filler levels from 5 to 50 parts per hundred relative to the polyvinyl chloride polymer.
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