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:
Sep. 24, 2002
Filed:
Jul. 19, 2000
Per Ove Öhman, Uppsala, SE;
Lars Rune Lundbladh, Täby, SE;
AMIC AB and Gyros AB, Uppsala, SE;
Abstract
The invention relates to a method of producing a matrix suitable for use in a plastic element-producing machine, a matrix produced in accordance with the method and use of such a matrix to form a plastic element. One side of the matrix is provided with a negative microstructure which is replicated in plastic material to form a positive microstructure on a plastic element, wherewith the matrix can be produced by applying a layer of material to the positive microstructure side of a master. The positive microstructure side of the master has a thin wear-resistant layer which serves as a first wear surface, wherewith said layer will present irregularities which correspond essentially to the microstructure, and wherein at least said irregularities are filled-in with a plastic composite so as to form a carrier element for supporting the first wear layer. The layer can further be provided with means for supplying heat energy to said matrix.