Process for removal of polymer foams from nickel-coated substrat

Details Process for removal of polymer foams from nickel-coated substrat Process for removal of polymer foams from nickel-coated substrat

1996-12-12

1998-04-07

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148675, 75415, 294264, C22B 520

Patent

active

057359776

ABSTRACT:
The method of the invention produces nickel structures from nickel-coated polymer substrates. The nickel-coated polymer substrate has a nickel outer layer and initially has a temperature where the outer nickel layer lacks burst openings. Rapidly exposing the nickel-coated polymer substrate to a temperature of at least about 600.degree. C. thermally decomposes the polymer substrate and bursts holes through the outer nickel layer. The gases resulting from the thermally decomposed polymer substrate escape through the holes through the outer nickel layer to leave a nickel structure. Finally, annealing the nickel structure increases strength of the nickel structure to produce a ductile foam product.

REFERENCES:
patent: 3926671 (1975-12-01), Gutjahr et al.
patent: 4957543 (1990-09-01), Babjak et al.
patent: 4975230 (1990-12-01), Pinkhasov
patent: 5374491 (1994-12-01), Brannan et al.

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