Claims
- 1. A method for foaming or foam-coating a component, which comprises:selecting a conductive material as at least one material from the group consisting of soot, an ethoxylated amine, a monoglycol ester of a fatty acid, a diglycol ester of a fatty acid, and a polyglycol ester of a fatty acid; finely dividing the conductive material to form a finely divided conductive material; setting a polarity of a foamable material by mixing the finely divided conductive material into the foamable material to give the foamable material a polar state; inserting the foamable material in the polar state completely into cavities of a double-walled or multiple-walled component or applying the foamable material completely onto the component between a surface of the component and a decorative material; and then heating the foamable material through microwave energy thereby expanding the foamable material to form a foam filling.
- 2. The method according to claim 1, which comprises carrying out the expansion by reflecting microwaves in a resonator chamber system for further uniformly distributing the energy over a length and cross-section of the foamable material.
- 3. The method according to claim 1, which comprises carrying out the microwave heating in connection with a hot air channel.
- 4. The method according to claim 1, which comprises:selecting EVA copolymer with vinyl acetate content as the foamable material; and determining a uniform softness of the foam by setting the vinyl acetate content in the EVA copolymer.
- 5. A method for foam-coating a component, which comprises:initially applying a foamable material in a polar state to a back surface of a flat decorative material for partial or complete coating of an outer surface of the component, bringing the applied foamable material onto the surface of the component by a process selected from the group consisting of back-blowing, back-pressing, and deep-drawing, and then heating the foamable material through microwave energy thereby expanding the foamable material to form an expanded layer.
- 6. The method according to claim 5, which comprises adjusting a thickness of the expanded layer by adjusting a thickness of the non-expanded material.
Priority Claims (1)
Number |
Date |
Country |
Kind |
197 07 136 |
Feb 1997 |
DE |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a division of U.S. application Ser. No. 09/379,214, filed Aug. 23, 1999, now U.S. Pat. No. 6,075,063 which was a continuation of copending International Application No. PCT/DE98/00017, filed Jan. 7, 1998, which designated the United States.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
26 02 379 |
Jul 1976 |
DE |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
PCT/DE98/00017 |
Jan 1998 |
US |
Child |
09/379214 |
|
US |