Solutia Incorporated

Witold Szydlowski

Bruce Edward Wade

Aristotelis Karagiannis

Wenjie Chen

John Joseph D'Errico

Mike Yi Ren Chen

Jun Lu

Vincent James Yacovone

Steven Vincent Haldeman

Gary Matis

Stefaan Maurice Florquin

Howard Smith Carman, Jr

Garry Kenneth Weakley

Lora Lee Spangler

Helen Mackin Thompson

Andrew Neil Smith

Guangxin Tang

Wenlai Feng

Stefaan Florquin

Richard F Urban

Pratapkumar Nagarajanc

Mike Chen

Resin compositions, layers, and interlayers comprising an acetoacetylized poly(vinyl acetal) resin are provided. Such compositions, layers, and interlayers can exhibit enhanced or optimized properties as compared to non-acetoacetylized poly(vinyl acetal) resins. The acetoacetylized poly(vinyl acetal) resins may be used in a layer or an interlayer for in an architectural application, or the acetoacetylized poly(vinyl acetal) resins may be used in a layer or interlayer, or combined with other layers, to provide an interlayer having good acoustic and other properties.

Esterified poly(vinyl acetal) resin compositions, layers, and interlayers having enhanced properties

The present invention is directed to the use of continuous extrusion devices to form high quality polymer dispersions of polyvinyl butyral), a surfactant, and a plasticizer. Screw extruder devices of the present invention inject water into a zone of high pressure, temperature, and shear to cause the rapid inversion of a weld in less than, for example, one minute, which compares very favorably with conventional batch methods, which can take, for example, two or more hours to complete an inversion. This rapid inversion&#x2014;a surprising result given the extended time inversion requires in batch processes&#x2014;allows for the continuous production of poly(vinyl butyral) dispersions.

Methods and devices for continuous production of polymeric dispersions

The present invention is directed to the use of continuous extrusion devices to form high quality polymer dispersions. Screw extruder devices of the present invention inject water into a zone of high pressure, temperature, and shear to cause the rapid inversion of a weld in less than, for example, one minute, which compares very favorably with conventional batch methods, which can take, for example, two or more hours to complete an inversion. This rapid inversion&#x2014;a surprising result given the extended time inversion requires in batch processes&#x2014;allows for the continuous production of polymer dispersions.

It has now been discovered, according to the present invention, that interlayers comprising a blend of plasticized poly(vinyl butyral) and poly(cyclohexanedimethylene terephthalate-co-ethylene terephthalate) copolyester can be used to form interlayers having a pearly white appearance. Such interlayers are useful in applications in which a colored multiple layer glass interlayer is desirable.

Polymer interlayers comprising blends of plasticized poly(vinyl butyral) and poly(cyclohexanedimethylene terephthalate-co-ethylene terephthalate) copolyester

The present invention is in the field of polymer interlayers used in multiple layer glass panels having one or more glass layers, and specifically the present invention is in the field of polymer interlayers comprising a layer of poly(cyclohexanedimethylene terephthalate-co-ethylene terephthalate) copolyester (PETG).

Methods of making polymer interlayers comprising poly(cyclohexanedimethylene terephthalate-co-ethylene terephthalate) copolyester

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Wilbraham, MA, United States of America

Witold Szydlowski