Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate
2005-01-21
2009-08-11
Johnson, Christina (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
C156S102000, C156S104000
Reexamination Certificate
active
07572399
ABSTRACT:
The present invention is an extruded sheet of polyvinylbutyral having thick edges relative to the interior region, whereby the sheet can be taken up on a roll and aged in such a manner that the roll attains a cylindrical shape due to loss of circumference of the roll edge during aging.
REFERENCES:
patent: 2387718 (1945-10-01), Coleman
patent: 3860383 (1975-01-01), Sirevicius
patent: 3950480 (1976-04-01), Adams et al.
patent: 4276351 (1981-06-01), Phillips
patent: 4287107 (1981-09-01), Hermann et al.
patent: 4292372 (1981-09-01), Moynihan
patent: 4693677 (1987-09-01), Shigemoto et al.
patent: 5137673 (1992-08-01), Bourcier et al.
patent: 5421085 (1995-06-01), Muscato et al.
patent: 5536347 (1996-07-01), Moran
patent: 5639538 (1997-06-01), Wong
patent: 5886075 (1999-03-01), Keane et al.
patent: 6451435 (2002-09-01), Klafka et al.
patent: 2004/0166288 (2004-08-01), Travis et al.
patent: 1190834 (2002-03-01), None
patent: 2290290 (1976-06-01), None
patent: 1400265 (1975-07-01), None
patent: 1470844 (1977-04-01), None
patent: 2058662 (1981-04-01), None
patent: WO96/28504 (1996-09-01), None
PCT International Search Report, International Application No. PCT/US2005/002413, dated Jan. 21, 2005.
PCT Written Opinion, International Application No. PCT/US2005/002413, dated May 25, 2005.
Dobson Kevin S.
E.I. du Pont de Nemours and Company
Hauth Galen
Johnson Christina
Kuller Mark D.
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