Kenneth Ray Cartmill

US Patent:

62282964, May 8, 2001

Filed:

Mar 22, 1999

Appl. No.:

9/274055

Inventors:

Kenneth Ray Cartmill - Lutz FL
Gregory Wayne Lynn - Clearwater FL

Assignee:

Celotex Corporation - Tampa FL

International Classification:

B29C 4424

US Classification:

264 462

Abstract:

A method for continuously producing a rigid polymer foam in rolled form comprising (a) continuously conveying a carrier along a production line, (b) depositing on the carrier a foam-forming mixture, a regulating means being located on the production line to ensure deposition of only enough of the foam-forming mixture for production, after foaming and curing, of a rigid foam having a maximum thickness of less than 1 inch, (c) foaming and curing the deposited foam-forming mixture to produce a rigid foam, and (d) rolling the rigid foam.