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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.:

US 9475214 B1

PDFFull Text
Date of Patent:
Oct. 25, 2016

Filed:

Mar. 08, 2013

Silane based coating of aluminium mold

Applicant:

Danmarks Tekniske Universitet, Kgs. Lyngby, DK;

Inventors:

Rafael Taboryski, Bagsværd, DK;

Jiri Cech, Virum, DK;

Assignee:

DANMARKS TEKNISKE UNIVERSITET, Kgs. Lyngby, DK;

Attorney:

Morrison & Foerster LLP

Primary Examiner:

Jill Heitbrink

Int. Cl.
CPC ...
B29C 33/64 (2006.01); B29C 33/56 (2006.01); C23C 16/40 (2006.01); C23C 16/455 (2006.01); B29C 33/58 (2006.01); B29C 45/26 (2006.01); B29C 45/34 (2006.01); B29C 45/40 (2006.01); C23C 14/12 (2006.01); B29C 33/42 (2006.01); B29K 101/12 (2006.01);
U.S. Cl.
CPC ...
B29C 33/64 (2013.01); B29C 33/56 (2013.01); B29C 33/58 (2013.01); B29C 45/26 (2013.01); B29C 45/34 (2013.01); B29C 45/4005 (2013.01); C23C 14/12 (2013.01); C23C 16/401 (2013.01); C23C 16/45525 (2013.01); C23C 16/45555 (2013.01); B29C 33/424 (2013.01); B29K 2101/12 (2013.01); B29K 2883/00 (2013.01); B29K 2905/02 (2013.01);
Abstract

A method of preparing an aluminum mold for injection molding is provided, the method comprises the steps of providing an aluminum mold having a least one surface, subjecting the at least one surface to a gas or liquid phase silane to thereby form an anti-stiction coating, the anti-stiction coating comprising a chemically bonded monolayer of silane compounds on the at least one surface wherein the silane is a halogenated silane. The at least one surface coated with the anti-stiction coating may be configured to withstand an injection molding process at a pressure above 100 MPa. Furthermore, a mold having at least one closed cavity is provided, at least one surface of the at least one cavity being an aluminium surface coated with a silane based coating layer. The resistance of the coated aluminium mold is significantly improved by applying a silane-based coating layer.

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