Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Reexamination Certificate
2004-07-14
2010-11-23
Lee, Edmund H. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
C264S054000, C264S419000
Reexamination Certificate
active
07837910
ABSTRACT:
A method of forming a hardened skin on a surface of a molded article. In an exemplary method, a formable material is mixed with a blowing agent to form a foam material. The foam material is placed in a flow molding apparatus such that the top surface of the foam material is in contact with the top mold of the apparatus and the bottom surface of the foam material is in contact with the bottom mold of the apparatus. In operation, an alternating dielectric field is applied across the foam material to form the molded article. At the end of the molding cycle, the bottom surface of the foam material remains under the decomposition temperature of the blowing agent so as to form a hardened skin on the molded article.
REFERENCES:
patent: 3345439 (1967-10-01), Everard et al.
patent: 3803274 (1974-04-01), Nakashima et al.
patent: 4268238 (1981-05-01), Marc
patent: 4296053 (1981-10-01), Doerer et al.
patent: 4441876 (1984-04-01), Marc
patent: 4459249 (1984-07-01), Matsuda
patent: 4524037 (1985-06-01), Marc
patent: 4525231 (1985-06-01), Wnuk
patent: 4783287 (1988-11-01), Eichberger et al.
patent: 4824617 (1989-04-01), Takeuchi et al.
patent: 4851167 (1989-07-01), Marc
patent: 4921647 (1990-05-01), Stewart
patent: 5509795 (1996-04-01), Near et al.
patent: 6299807 (2001-10-01), Kimura et al.
patent: 6616886 (2003-09-01), Peterson et al.
patent: 2006/0012083 (2006-01-01), Marc
patent: 1 053 849 (2000-11-01), None
patent: 2 129 967 (1972-11-01), None
patent: 1 313 922 (1973-04-01), None
Translation of European Patent Application No. EP 1 053 849 A2, previously submitted in Information Disclosure Statement dated Nov. 17, 2008.
European Patent Office “Supplementary European Search Report” for Application No. EP 05 77 0686 dated Sep. 25, 2008.
Lee Edmund H.
Stinson Morrison & Hecker LLP
Vertex L.L.C.
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