Saint-Gobain Vitrage

Asahi Glass Company, Limited

Saint-Gobain Glass France

Saint-Gobain Vitrage International

Saint-Gobain Recherche

Other

Jean-Louis M Bravet

Gerard M Daude

Siegfried Pikhardt

Noel Crux

Herbert Bayer

Gerd Leyens

Claude M Morin

Francois De Toytot

Bernard Bureau

Gerard Dimier

Marc Maurer

Michel J Moncheaux

Francois Toytot

Sylvie Drujon

Hiroyuki Watanabe

Satoshi Kondo

Michael L Friedman

Hiroshi Shimoda

Marc Rehfeld

Volkmar Offermann

Toshihiko Higuchi

Claude M Didelot

Noriyuki Yoshihara

Christian Padoy

Helmer Raedisch

Otto Jandeleit

Seiichi Miyasaka

Jean-Philippe Boure

Roger Orain

Friedrich Triebs

Rym Benyahia

Eiji Hirano

Anne L'Her

Kaori Yoshida

Jean-Claude Abel

Philippe Dagaut

Fabrice Ducreuzot

Deirdre C McDonnell-Lee

Boris Vidal

The invention relates to a product which is at least partly transparent and of high optical quality, equivalent to that of a glass window, which can be approved as a motor-vehicle window according to the various standards in force, and having a plastic core coated with a skin comprising at least one plastic film coated with a scratch-resistant layer; it also relates to a process for manufacturing this product and to the application of the latter as a body element, part of which forms a window, for example for motor vehicles.

Plastic window, especially for motor vehicles, and process for its manufacture

Plastic glazing, in particular for motor car and method for making same

The invention concerns an essentially flat plastic product, at least partly transparent and whereof one part at least of the external surface consists of added overmoulded plastic material. The invention also concerns two methods for making said product, using injection moulding technique and the use of said product as glazing for transport vehicles or buildings.

Plastic glazing sheet with added overmoulded plastic material

An optically transparent glazing measures about 3 to 5 mm in total thickness, and has an interlayer film, the interlayer film comprises at least two polymeric film layers: a core film layer having a modulus of at least 25,000 psi (173 MPa) and a surface film layer having a maximum modulus of 15,000 (104 MPa) at 50 to 10,000 Hz and 20&deg; C.; and the glazing is characterized by an acoustical barrier insulating capacity at least equivalent to that of a 3.85 mm thick monolithic pane of glass. The glazing also has an Articulation Index value of less than 64.2% at 50 to 10,000 Hz, a sharpness value of less than 150 at 50 to 10,000 Hz, a penetration resistance of at least 9 meters in test method ECE R43, A6 4.2, and a maximum haze of 4%. The interlayer film has a bending stiffness of at least 0.01 Pa*m . The surface film layer has a maximum tan delta of 0.6 at 50 to 10,000 Hz and 20&deg; C. The interlayer film preferably comprises one core film layer of between 1.0 and 1.7 mm in thickness within two surface film layers, each between 0.2 and 0.6 mm in thickness. The glazing preferably comprises a glass/interlayer film glass sandwich having a glass/film thickness ratio from 4.2/0.8 to 1.0/2.8.

Transparent acoustical and mechanical barrier

Composite glazing material made of glass and plastic and process for determining the optimal geometric parameters of this glazing material

The present invention relates to a process for preparing a sheet of plastic coated with a hard varnish on at least part of at least one of its sides, including:

Process for preparing a sheet of plastic, this sheet and glazing

A pane formed of a substrate and a film of polymeric material. The film of polymeric material has a thickness that varies in at least one predetermined zone of the pane, with the result that the external faces of the pane are not parallel to each other in this zone. The pane is useful in an eye-level display system for the purpose of eliminating a double reflection image.

Pane for vehicle, and polymeric material sheet used in this pane

A transparent, smooth and cross-linked polyurethane resin sheet prepared from a reaction-curable composition which comprises a high molecular weight polyol mixture (A) comprising a polyester polyol and/or a polycarbonate polyol, as its main components, and containing a diol and a trivalent or higher valent polyol, the average hydroxyl value of the mixture being from 40 to 120, and the equivalent ratio of (the trivalent or higher valent polyol)/(the diol) being from 0.1 to 0.8, a substantially bivalent chain extender (B) in an amount of from 1.9 to 6.0 equivalents per equivalent of the polyol mixture (A), and a substantially bivalent alicyclic or aliphatic polyisocyanate compound (C) in an amount of from 0.8 to 1.2 equivalents per equivalent of the sum of the polyol mixture (A) and the chain extender (B), as its main components.

Cross-linked polyurethane resin sheet and laminated product employing it

A process for producing a multi-layer film having a plurality of synthetic resin layers laminated on a releasable flat substrate by casting, which comprises firstly forming on the substrate a synthetic resin layer having adhesive or sticking properties, and then casting and curing on the synthetic resin layer having adhesive or sticking properties at least one kind of reaction-curable resin raw material mixture substantially free from a solvent to form at least one cured synthetic resin layer, so that the uppermost layer is composed of a cured synthetic resin superior in surface properties to its adjacent layer. Further, surface defects transferred from the substrate to the adhesive layer are substantially eliminated by a subsequent lamination step.

Process for producing a multi-layer film

A sheet of plastic material is provided adapted to be assembled with a glass substrate to form an asymmetric pane. The plastic material sheet contains at least two films, where one film is an adhesive film intended for contact with the glass substrate and a second film is adjacent to the adhesive film, at least the adjacent film containing at least one organosilane coupling agent.

Sheet of plastic material for pane and pane made using such a sheet

This invention relates to a laminated safety pane, comprising a monolithic or laminated substrate of glass and/or of plastics material and a sheet of plastics material comprising at least one external polyurethane film providing desirable surface properties. According to the invention, the pane is provided, on at least one zone of the polyurethane film, with a gluing prefilm compatible with a film of adhesive deposited later, this prefilm being deposited after an electrical treatment applied to at least the zone of the polyurethane film which is to receive the prefilm, this electrical treatment being chosen from among the treatments of the corona discharge type.

Laminated panes and process for the production of same

A process for the continuous production of a plastic sheet of high optical quality capable of being used in laminated glasses, having at least a thin layer resistant to scoring and abrasion which entails high-speed centrifugal spraying of a mixture of reaction components, onto a plane horizontal support carried in a uniform movement of advancement relative to the spraying.

Process and device for producing a plastic layer of high optical quality

One-piece or laminated window fitted with a peripheral duplicate-molded profile ready for mounting by adhesive bonding in a bay, wherein the surface of the peripheral profile intended to be bonded is coated with a polymerized layer obtained from a composition, which contains an isocyanate constituent and a polyalcohol constituent present in excess in relation to the isocyanate constituent in order to form, after polymerization, a polyurethane layer having free hydroxyl groups capable of reacting subsequently with the adhesive strip used to mount the window, wherein the polyalcohol constituent contains at least one polyvinyl chloride copolymer containing free hydroxyl groups.

Encapsulated window ready for mounting and fabrication method therefor

A polyurethane film of excellent optical quality is prepared by applying to a substrate, by reactive casting or reactive spraying, a reaction mixture of an isocyanate component and a polyol component containing at least one long difunctional polyol having a molecular weight between 500 and 10,000, containing at least partial ethylene oxide segments, with the percentage by weight of ethylene oxide segments relative to the total weight of the polyurethane being greater than 20%, at least one short diol as chain extender, with the ratio of free NCO groups of the isocyanate component to free OH groups of the polyol component being between 1.5 and 2; and contacting a surface of said applied material intended to face toward the outside of the safety glass with a surface treatment compound of an acrylic derivative or isocyanate having a functionality greater than 2.

Process for producing a transparent polyurethane film with

The invention relates to a molded window glass intended to be installed by gluing it into a window opening, especially a window opening in a car. The molded profile has at least one reactive surface comprising free OH groups which can subsequently react with the strip of adhesive used for installation of the window glass in the window opening by gluing.

Encapsulated window glass, ready for installation, and a method for its

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Thourotte, France

Jean-Louis M Bravet