The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2014
Filed:
Dec. 07, 2009
Reinhard Jakobi, Maxdorf, DE;
Jürgen Bartl, Ludwigshafen, DE;
Kamil Fischer-jerdonek, Frankenthal, DE;
Cecile Gibon, Mannheim, DE;
Harald Kröger, Böhl-lggelheim, DE;
Susanne Zeiher, Ludwigshafen, DE;
Reinhard Jakobi, Maxdorf, DE;
Jürgen Bartl, Ludwigshafen, DE;
Kamil Fischer-Jerdonek, Frankenthal, DE;
Cecile Gibon, Mannheim, DE;
Harald Kröger, Böhl-lggelheim, DE;
Susanne Zeiher, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to processes for the production of a composite component via multicomponent injection molding, where the composite component comprises a main body composed of a thermoplastic and an external layer composed of a foamed thermoplastic. The main body is produced via injection molding and subsequent hardening of the thermoplastic. A mixture of the foamed thermoplastic and a chemical blowing agent is injected onto the main body, subsequently hardened in the same injection mold, and foamed by heating. The composite component is solidified via cooling. The foamed thermoplastic is at least one polyamide whose modulus of elasticity is from 1 MPa to 250 MPa in the entire temperature range from 70° C. to 180° C. The chemical blowing agent is in non-polymerized form.