POLYURETHANE-BASED SEALANT FOR INSULATED GLASS UNITS

• Main Authors: GRIER, LAURA, A, KOONCE, WILLIAM, A, LATHAM, DWIGHT, D, RIES, PAUL, D, RADHAKRISHNAN, BINDUSHREE, SCHAEFER, MATTHIAS
• Format: Patent
• Language: English; French
• Published: 30.06.2011
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINERAL OR SLAG WOOL; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES

Insulated glass units are sealed with polyurethane made using a natural oil-based polyol (NOBP). In one embodiment the NOBP is made using a monol-rich monomer containing high levels of mono-hydroxy functional fatty acid methyl esters. Insulated glass sealants based on these compounds provide enhanced resistance to UV and oxidative degradation as compared to conventional products while still providing the required barrier and mechanical properties. La présente invention concerne des unités de verre isolant qui sont scellées avec du polyuréthane fabriqué en utilisant un polyol à base d'huile naturelle (NOBP). Dans un mode de réalisation, le NOBP est fabriqué en utilisant un monomère riche en monol contenant des taux élevés en esters méthyliques d'acides gras mono-hydroxy fonctionnels. Les produits d'étanchéité en verre isolant basés sur ces composés fournissent une résistance améliorée aux UV et une meilleure dégradation oxydative par rapport aux produits conventionnels tout en fournissant toujours les propriétés barrières et mécaniques requises.