Readily thermoweldable films of polyolefins coated with lacquers based on ketonic resins
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 8, 1981
Grant Date -
N/A
app pub date -
Oct 23, 1978
filing date -
Oct 24, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Films consisting essentially of alpha-olefin polymers, such as normally solid polypropylene consisting essentially of recurring propylene units and having a substantial crystalline polypropylene content, and in particular isotactic polypropylene, are coated with a ketonic resin resulting from the polycondensation of aldehydes with ketones, which coating renders the films readily thermoweldable and/or impervious to gases, vapors and the like. The coated films are useful for the manufacture of containers, covers, small bags, vessels and in general for the manufacture of articles useful in the packaging industry.
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