Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2007-04-10
2007-04-10
Vo, Hai (Department: 1771)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S318600, C428S314400, C428S314800
Reexamination Certificate
active
10770958
ABSTRACT:
A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer surface to form the densified skin having a density greater than a density of the foam before the heating step. Additionally, the method and apparatus may further include extruding the polymer foam from an extruder.
REFERENCES:
patent: 3443007 (1969-05-01), Hardy
patent: 3644168 (1972-02-01), Bonk et al.
patent: 3676537 (1972-07-01), Winstead
patent: 4089818 (1978-05-01), Slocumb
patent: 4136226 (1979-01-01), Gilman
patent: 4216177 (1980-08-01), Otto
patent: 4397797 (1983-08-01), Nojiri et al.
patent: 4429061 (1984-01-01), Ide
patent: 4595436 (1986-06-01), Walker et al.
patent: 4747983 (1988-05-01), Colombo
patent: 5059631 (1991-10-01), Hovis et al.
patent: 5277515 (1994-01-01), Hovis et al.
patent: 5350544 (1994-09-01), Bambara et al.
patent: 5369136 (1994-11-01), Park et al.
patent: 5658084 (1997-08-01), Wirt
patent: 5665785 (1997-09-01), McClellan et al.
patent: 5667740 (1997-09-01), Spydevold
patent: 5683772 (1997-11-01), Andersen et al.
patent: 5776388 (1998-07-01), Andersen et al.
patent: 5876813 (1999-03-01), Bambara et al.
patent: 5882776 (1999-03-01), Bambara et al.
patent: 6090479 (2000-07-01), Shirato et al.
patent: 6213540 (2001-04-01), Tusim et al.
patent: 43 08 764 (1994-09-01), None
patent: 1 349 301 (1974-04-01), None
patent: 54004964 (1979-01-01), None
Translation of JP 06-339998, Ingolf et al, “Polyolefin Base Material Particle Foam Molded object Having Compressed Smooth Outer Layer,” Dec. 13, 1994.
PCT International Search Report dated Mar. 26, 2004—from International Application No. EP 01 91 2679, filed Mar. 26, 2004 (3 pages).
Derwent Abstract of DE patent.
PCT International Search Report dated Jun. 1, 2001—from International Application No. PCT/US01/03102, filed Jan. 31, 2001 (4 pages).
Farha Said K.
Stimler Jeffrey J.
Zettel David P.
Pregis Innovative Packaging Inc.
Vo Hai
Winston & Strawn LLP
LandOfFree
Polymer foam plank with densified skin, method and apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymer foam plank with densified skin, method and apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer foam plank with densified skin, method and apparatus... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3724090