Solutia Incorporated

Vincent James Yacovone

Jun Lu

Aristotelis Karagiannis

David Paul Bourcier

Gary Matis

John Joseph D'Errico

James R Moran

Harold H Hopfe

Witold Szydlowski

Lora Lee Spangler

Andrew Neil Smith

Jean-Pierre Etienne

Wenlai Feng

William Paul Bell

Richard F Urban

Pratapkumar Nagarajanc

The invention provides a PVB interlayer sheet having a surface topography on at least one surface which is characterized as having a relatively low profile and a controlled, collapsible surface roughness profile (upon exposure to heat) having a population of significantly more surface peaks than negative peaks (valleys) in certain embodiments and slightly more distant peak spacing than is generally found in embossed PVB interlayers. The PVB interlayer sheets of the invention thus provide very good initial contact and tack of PVB to a glass surface, while leaving very little residual air behind after a first nip in a traditional glass lamination process when compared to other surface designs. The PVB interlayer sheets of the invention also exhibit a wide deairing window which affords greater tolerance of temperature and process variations.

Textured interlayers

A high frequency semi-isotropic embossed polymer interlayer sheet is disclosed. The embossed polymer interlayer sheet has a first side; a second side opposing the first side; and an embossed surface on at least one of the sides, and a surface texture ratio, Str, (as measured per ISO 25178) of between 0.1 and 0.99. The embossed polymer sheet may have at least 50 roughness peaks per centimeter (R PC, as measured per ASME B46.1 [1985]). The embossed polymer sheet may have a mottle value of less than or equal to 2.5 (as measured by a Clear Mottle Analyzer [CMA]). The embossed polymer sheet may be polyvinyl butyral.

Embossed polymer sheet

The present invention is in the field of multiple layer glass panels comprising a polymer sheet having desirable surface properties, and more specifically, the present invention is in the field of multiple layer glass panels comprising poly(vinyl butyral) having a finished surface of relatively low waviness and high roughness disposed in contact with poly(ethylene terephthalate) and/or other poly(vinyl butyral) type layers.

Low distortion interlayer

The present invention provides multiple layer interlayers having a relatively soft inner layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by embossing the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, after formation of the interlayer or layers. The embossing process is carried out under temperature conditions that prevent the transfer of the embossing to inner layers of the interlayer. By precisely controlling the embossing of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.

Multiple layer polymer interlayers having an embossed surface

This invention is directed to a plastic composite comprising color images printed onto a polymeric support film using UV ink. The polymeric support film layer may be bonded to a polymeric film selected from the group consisting of aliphatic polyurethane and ethyl vinyl acetate. The combined laminate can then optionally be disposed between two layers of plasticized PVB, forming the plastic composite. The plastic composite can then be placed between two sheets of glass forming the final laminated glass product. Preferably, when the UV image is printed on the polymeric support film, the image is only partially cured by a UV lamp. After the polymeric support film is contacted with the polymeric film, with the partially cured UV image therebetween, the laminate is exposed to a second UV lamp operating at full power so as to completely cure the UV image.

Decorative glass laminate containing an ultraviolet printed image thereon and a method for preparing said decorative glass laminate

This invention is directed to a plastic composite comprising color images printed onto a polyethylene terephthalate (PET) substrate using thermal transfer (TT) printing technology. The PET layer is then bonded to a second PET layer using a thermally activated adhesive, preferably ethylene vinyl acetate copolymer (EVA). The bonded PET layers are then disposed between two layers of plasticized PVB, forming the plastic composite. The plastic composite can then be placed between two sheets of glass forming the final laminated glass product.

Digital color-design composite for use in laminated glass

Thermoplastic sheet comprising plasticized polyvinyl butyral has a regular pattern of ridges and channels integrally formed and arranged in each face at an angle of intersection with respect to each other of at least 25 degrees, the ridges tapering to flattened V-shaped peaks of tight radius of less than 0.0034 inch, each face of the sheet having a surface permanence of at least 70%.

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Springfield, MA, United States of America

Vincent James Yacovone