Appeal No. 1999-2205
Application No. 08/738,469
The subject matter on appeal relates to a method for
extrusion coating a coating composition onto a length of
splice jointed webs via a coating head, wherein the coating
has a first (acceptable) coating thickness (formed as the web
is fed across the coating head) and a second (unacceptable)
coating thickness (formed as the coating head and the web are
moved out of and into contact with each other). The method
includes the steps of moving a scraping means into contact
with the web at a position downstream of the coating head to
remove entirely the coating having the second thickness from
the web and transfer the entire removed coating onto the
scraping means and scraping the removed coating from the
scraping means by a doctor blade in continuous contact with
the scraping means. Further details of this appealed subject
matter are set forth in representative independent claim 13
which reads as follows:
13. A method for extrusion coating a coating composition
onto a length of splice jointed webs through a slit in a
coating head by feeding a length of webs across the coating
head to form a coating having a first thickness on the webs,
each of said webs having a splice jointed at a trailing edge
of said webs, the method comprising the steps of:
feeding a length of webs along a web guide path defined
by first and second guide rolls, the first and second guide
2
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007