Monsanto Company

James A Snelgrove

George E Mont

George E Cartier

David A Fabel

Robert H Fariss

Donald I Christensen

Ink formulations for use in printing polyvinyl butyral sheets are described. The formulations comprise polyvinyl formal, and polyvinyl butyral sheets printed using the formulations are found to have a reduced tendency to exhibit blocking.

Printing ink formulations

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.

Plasticizer blends for polyvinyl butyral interlayers

A laminate comprising a sheet of the polycarbonate or polyacrylate resin in face-to-face contact with a sheet of polyvinyl butyral plasticized with an effective amount of a plasticizer which is at least a partial ester formed by reaction of an alcohol having from 2 to 4 hydroxyl groups and a C.sub.16 -C.sub.20 unsaturated fatty acid having a hydroxyl group attached to the acid molecule.

Laminates comprising a plasticized interlayer

Disclosed herein is a laminated glazing unit for vehicle and architectural uses which comprises glass, an interlayer and a high nitrile polymer in a laminated configuration wherein the interlayer is sandwiched between the glass and the high nitrile polymer.

Laminated safety glass

Disclosed herein is a laminated safety glass prepared from a buffered polyvinyl acetal sheet. The sheet contains a pH buffer having an aqueous solution pH in the range of from 3 to 7 which stabilizes the sheet against viscosity degradation.

Laminated safety glass prepared from buffered acetal

Disclosed herein is a method for stabilizing the viscosity of polyvinyl acetal resins, especially those resins used as interlayers for laminated safety glass. The disclosed process comprises incorporating a buffer having a pH in the range of from 3 to 7 into the plasticized polyvinyl acetal.

Growing community of inventors

Monson, MA, United States of America

James A Snelgrove