Abstract: Calcitic and/or siliceous architectural and construction materials are provided with increased resistance to damage from water, oil, grease and weather by a process which comprises treating said materials with an aqueous composition containing:
(A) from about 0.1 to 4% by weight on a 100% solids basis of an aqueous solution or self-dispersed emulsion or dispersion of a copolymer which is a reaction product of monomers containing fluorinated groups, cationic groups and nonionic groups,
(B) an effective amount of a penetration assistant, and
(C) water to make up 100%.
Type:
Grant
Filed:
July 21, 1999
Date of Patent:
March 6, 2001
Assignees:
Ciba Specialty Chemicals Corp.
Inventors:
Ian Neal Ornstein, Geoffrey Charles Christ
Abstract: A material is disclosed which comprises a substrate and an organic electroconductive layer provided on said substrate, characterised in that the substrate is a laminate comprising a glass layer and a support. The glass layer is preferably a flexible glass layer having a thickness from 10 to 500 &mgr;m. The material can be used as an electrode in electric or semiconductor devices thereby providing an improved lifetime, e.g. displays, photovoltaic cells or light-emitting diodes.
Type:
Grant
Filed:
December 13, 1999
Date of Patent:
March 6, 2001
Assignee:
Agfa-Gevaert, N.V.
Inventors:
Tom Cloots, Frank Louwet, Hieronymus Andriessen, Bart Verlinden, Jean-Pierre Tahon, Leo Vermeulen, Luc Leenders, Rudi Goedeweeck
Abstract: A method is disclosed for forming coated fibers suitable for making a composite article. A plurality of fibers are coated with an aqueous- or non-aqueous-based chemical treatment containing a curable resin such that the resin on the fibers is in a partially cured or uncured state. The coated fibers may then be formed into a composite article in a subsequent forming operation, for example, by filament winding, pultrusion, weaving, knitting, or extrusion coating. The strand of fibers may also be shaped into a preform which can be used in resin transfer molding (RTM) and injection molding processes.
Type:
Grant
Filed:
May 23, 1997
Date of Patent:
February 13, 2001
Assignee:
Owens Corning Fiberglas Technology, Inc.
Inventors:
David R. Hartman, David L. Shipp, Andrew B. Woodside, Joan T. Muellerleile
Abstract: A glass substrate is provided with a tin oxide coating. The tin oxide coating is then polished, preferably with alumina. The polishing removes the peaks from the tin oxide coating and produces a less abrasive coating. A coating of polymeric material may be applied after the polishing operation. The polymeric coating improves the lubricity of the surface of the glass substrate. The glass substrate is then heated so that the polymeric material adheres to the substrate. The invention provides greatly improved resistance to abrasion and scratching for a coated glass article. The invention may advantageously be used in automotive, architectual and bar code scanner applications.
Abstract: A finishing composition and method for applying the composition to a fabric woven from glass fibers or from a blend of glass fibers and other fibers such as polyamide or polyester. Such finishes significantly enhance the flex life of woven glass fabrics by improving the acid and alkali corrosion resistance of the fibers. The finish, which comprises fluoropolymer and epoxy resin, can be loaded into the fabric in multiple baths. Filtration products can be fabricated from the finished fabrics and they are especially useful for making filter bags used in the bag houses for central power generating stations and similar industries.
Type:
Grant
Filed:
November 12, 1999
Date of Patent:
January 2, 2001
Inventors:
H. Landis Carter, S. Joseph Milletari, Shobha Murari
Abstract: Polyetherpolyols containing residues of catalysts of the double metal cyanide complex class are treated with a strong base and ion exchanged or neutralized and filtered to provide a stable polyol with reduced tendency to form allophanates with diisocyanates. Further, the addition of ethylene oxide to the polyol while in contact with the strong base serves to end cap the polyol to provide it with primary hydroxyl groups.