Method for producing a polycarbonate layered composite

US8636862B2 · kind B2 · utility

Assignees

• BUNDESDRUCKEREI GMBH · DE
• Bayer MaterialScience AG · DE

Inventors

• Oliver Muth · Berlin, DE
• Andre Leopold · Berlin, DE
• Malte Pflughhoefft · Berlin, DE
• Jörg Fischer · Berlin, DE
• Manfred Paeschke · Wandlitz, DE
• Heinz Pudleiner · Krefeld, DE
• Cengiz Yesildag · Leverkusen, DE
• Klaus Meyer · Dormagen, DE

Key dates

• Filing date: Oct 29, 2008
• Grant date: Jan 28, 2014
• Expiry date: Mar 4, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/239
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

The invention relates to a method for making a structure with at least a first polymer layer and a second polymer layer, each made from a polycarbonate polymer based on bisphenol A, between the polymer layers a component being arranged, comprising the following steps: a) the component is arranged on the first polymer layer or placed in a depression of the first polymer layer, b) the first polymer layer is coated on the side, on which or in which the component is arranged, at least in the region of the component with a liquid preparation comprising a solvent or a mixture of solvents and a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, c) optionally a drying step is made after step b), d) after step b) or step c), the second polymer layer is placed on the first polymer layer, covering the component, e) the first polymer layer and the second polymer layer are laminated with each other under pressure, at a temperature from 120° C. to 180° C. and for a defined time.