Apparatus and method for producing waterproof structural corrugated paperboard
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 16, 2011
Grant Date -
Mar 17, 2011
app pub date -
Sep 14, 2009
filing date -
Sep 14, 2009
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Two paper webs, saturated with a B-phase phenolic resin and dried, are conveyed through separate low melting point metal alloy baths, one web after being corrugated, to convert the resin to a fully cured phase, whereafter the webs are joined to form a structurally rigid waterproof single face corrugated web.
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