Professional R&D and excellent quality plasticizer chemicals

A plasticizer blend for polyvinyl butyral (PVB) comprising a monoester of a glycol and a C 16 to C 20 unsaturated fatty acid having a hydroxyl group attached to the acid molecule and a multiester of an alcohol having 2 to 4 hydroxyl groups and said unsaturated fatty acid, the monoester being present in the blend on a weight basis in an amount equal to or greater than the multiester.

Polyvinyl butyral is used in safety glass interlayers, mainly in car windshields. Legislative regulations require a recycling of cars after their lifetime and therefore also their safety glass. This causes the availability of recycled polyvinyl butyrate (r-PVB) originated from safety glass interlayers.

to replace polyvinyl butyral film by alternate films made up of polycarbonate, polyurethanes, vinyl resins etc. Keywords: Safety glass, Laminated, polycarbonate, polyvinyl butyral, polyurethane 1. Introduction This review deals specifically with different types of polymeric materials used as interlayers in laminated glasses.

Plasticizer blends for polyvinyl butyral interlayers Patent number: 4144217 Abstract: A polyvinyl butyral composition useful as an interlayer in architectural glazing units is plasticized by a blend of a di(C.sub.5 to C.sub.8 alkyl) adipate and a C.sub.3 to C.sub.6 alkyl benzyl phthalate.

A plasticizer for polyvinyl butyral having a molecular weight between about 30,000 and 600,000, a 0 to 10% content by weight of residual ester groups, calculated as polyvinyl acetate and a...