Polyvinyl butyral sheet with bifunctional surface modifying...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 7/06 (2006.01) B32B 17/10 (2006.01) C08K 5/11 (2006.01) C08L 29/14 (2006.01)

Patent

CA 2528325

A polymer sheet having a bifunctional surface modifying agent deposited on the surface of the sheet and a method of manufacturing a polymer sheet having a bifunctional surface modifying agent on the surface of the sheet. The polymer sheet preferably comprises a polyvinyl butyral, a plasticizer incorporated into the polyvinyl butyral, and a bifunctional surface modifying agent disposed as a coating on the plasticized polyvinyl butyral, the bifunctional surface modifying agent comprising an anti-blocking segment and a compatibility segment, the anti-blocking segment comprising a hydrocarbon group comprising a linear hydrocarbon chain, a cyclic group, or a combination of linear hydrocarbon chains and cyclic groups, the compatibility segment comprising a sulfonate, sulfate, carboxylate, or phosphate radical. A method of manufacturing a polymer sheet comprises disposing a bifunctional surface modifying agent onto said polymer sheet surface, the bifunctional surface modifying agent comprising an anti-blocking segment and a compatibility segment comprising a sulfonate, sulfate, carboxylate, or phosphate radical.

L'invention concerne une feuille de polymère comprenant un agent de modification de surface bifonctionnel déposé sur la surface de la feuille, et un procédé de fabrication d'une feuille de polymère comprenant un agent de modification de surface bifonctionnel sur la surface de la feuille. Ladite feuille de polymère comprend, de préférence, un polyvinyle butyral, un plastifiant incorporé dans le polyvinyle butyral, et un agent de modification de surface bifonctionnel recouvrant le polyvinyle butyral plastifié, l'agent de modification de surface bifonctionnel étant formé d'un segment anti-blocage et d'un segment de compatibilité, le segment anti-blocage comprenant un groupe hydrocarbure contenant une chaîne d'hydrocarbure linéaire, un groupe cyclique, ou une combinaison de chaînes d'hydrocarbure linéaires et de groupes cycliques, le segment de compatibilité comprenant un sulfonate, un sulfate, un carboxylate, ou un radical phosphate. L'invention concerne également un procédé de fabrication d'une feuille de polymère, consistant à disposer un agent de modification de surface bifonctionnel sur la surface de ladite feuille de polymère, l'agent de modification de surface bifonctionnel étant formé d'un segment anti-blocage et d'un segment de compatibilité comprenant un sulfonate, un sulfate, un carboxylate, ou un radical phosphate.

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