Reduction in the adhesion to glass of thermoplastic, plasticized polyvinylbutyral molding compositions

US4663235A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Kurt Fock · Bad Soden am Taunus, DE
• Hans D. Hermann · Bad Soden am Taunus, DE
• Klaus Fabian · Kriftel, DE
• Joachim Ebigt

Key dates

• Filing date: May 10, 1985
• Grant date: May 5, 1987
• Expiry date: May 10, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/3163
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Reduction in the adhesion to glass of thermoplastic, plasticized polyvinylbutyral molding compositions, in particular sheeting, by the addition of a metal salt and/or metal chelate of an enolizable .beta.-diketone, or mixtures of these compounds, as an non-stick agent, preferably in amounts of 0.003 to 0.3% by weight, relative to the plasticized polyvinylbutyral. It is preferable to employ the non-stick agent in the form of a solution in the plasticizer. The use of the sheeting having an adhesion to glass reduced in accordance with the invention as a laminating layer for the production of glass laminates.