BUTYRAL RESIN SHEET CONTAINING BIFUNCTIONAL SURFACE MODIFIER Russian patent published in 2009 - IPC C08J5/18 C08J7/06 C08L29/14 B32B17/10 

FIELD: chemistry.

SUBSTANCE: invention refers to butyral resin sheets containing bifunctional surface modifier covering sheet surface, to method for making this sheet and to laminated nonshattering glass. Bifunctional surface modifier covers plastificised polymer sheet. Herewith bifunctional surface modifier includes block-resistant segment and compatible segment. The block-resistant segment contains hydrocarbon group with linear hydrocarbon chain, cyclic group or combined linear hydrocarbon chains and cyclic groups. The compatible segment contains sulphonate, sulphatic, carboxylate or phosphatic radical. Method for making polymer sheet involves coating polymer sheet surface with surface bifunctional modifier. Herewith bifunctional surface modifier includes block-resistant segment and compatible segment, including sulphonate, sulphatic, carboxylate or phosphatic radical.

EFFECT: improved blocking resistance of butyral resin sheet with maintaining optical transparency of laminates and sheet adhesion to glass.

15 cl, 4 tbl, 2 ex