Method of and apparatus for maintaining uniform hot melt coatings on thermally sensitive webs by maintaining dimensional stability of silicone and rubber-like web back-up rolls
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 28, 1989
Issued Date -
N/A
app pub date -
Nov 14, 1988
filing date -
May 22, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Uniformity of hot melt coatings on thermally sensitive plastic and other webs is maintained by use of a silicone or other rubber-like web back-up roll the dimensional stability of which is maintained during hot melt coating of the webs by a heat-conducting idler roll directly contacting the back-up roll temperature and a heat transfer source for temperature deficiencies on the silicone roll surface, aiding constant nozzle-to-web spacing irrespective of temperature variations and line speeds. Provision is also made for the introduction of chilling, if required.
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