PPG Industries is an American global supplier of paints, coatings, optical products, specialty materials, chemicals, glass, and fiberglass. With headquarters in Pittsburgh, Pennsylvania, PPG operates in more than 70 countries around the globe. Sales in 2013 were $15.1 billion. It is headquartered in PPG Place, an office and retail complex in downtown Pittsburgh, and is known for its glass facade designed by Philip Johnson. Wikipedia.
PPG Industries | Date: 2017-02-01
An architectural transparency includes a substrate, a first dielectric layer formed over at least a portion of the substrate, a continuous metallic layer formed over at least a portion of the first dielectric layer, a second dielectric layer formed over at least a portion of the first metallic layer, and a subcritical metallic layer formed over at least a portion of the second dielectric layer such that the subcritical metallic layer forms discontinuous metallic regions.
PPG Industries | Date: 2017-03-15
A pretreatment composition and a method for pretreating a metal substrate is disclosed. The method comprises: (a) pretreating the metal substrate with a Group IV(b) metal ion, followed by (b) treating the substrate of (a) with a composition comprising: (i) a Group IV(b) metal ion, (ii) a copper ion, (iii) a fluoride ion, and (iv) an organophosphonic acid, followed by (c) electrodepositing a cationic electrodepositable composition on the metal substrate.
PPG Industries | Date: 2017-03-29
A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt.%, more preferably 0.001-0.010 wt.%, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-0.10. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt.% and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO2. An embodiment of the invention covers a glass made according to the method.
PPG Industries | Date: 2017-02-08
A crosslinkable, branched polyester prepared by free radical polymerization of unsaturated polyester prepolymers, wherein the polymerization occurs primarily by reaction of the unsaturation is disclosed. Coatings comprising the same are also disclosed, as are substrates coated at least in part with such coatings.
PPG Industries | Date: 2017-02-23
Thermally produced graphenic carbon particles for use as absorptive pigments are disclosed. The pigments may be used in coatings and bulk articles to provide favorable absorbance characteristics at various wavelengths including visible and infrared regions.
PPG Industries | Date: 2017-01-04
The present invention is directed to methods of separating a fluid emulsion stream into a hydrocarbon stream and an aqueous stream, by contacting the stream with a microporous membrane to yield a hydrocarbon product stream and an aqueous product stream. The membrane comprises a substantially hydrophobic, polymeric matrix, and substantially hydrophilic, finely divided, particulate, substantially water-insoluble filler distributed throughout the matrix. The polymeric matrix has a mean pore size less than 1.0 micron, and the purities of the product streams are independent of the flux rate of the aqueous product stream and the pore size of the membrane.
PPG Industries | Date: 2017-06-14
The present invention relates to sizing compositions, to glass fibers at least partially coated with such sizing compositions, to a variety of fiber glass products at least partially coated with such sizing compositions, and to composites formed from cycloolefins and reinforced with glass fibers at least partially coated with sizing compositions of the present invention. In one non-limiting embodiment, a sizing composition for glass fibers comprises a film-former comprising a polymer, wherein the repeating unit of the polymer comprises at least four carbon atoms and at least one carbon-carbon double bond, and a silane. A sizing composition for glass fibers, in another non-limiting embodiment, comprises a film-former comprising a polymer, wherein the repeating unit of the polymer comprises four to six carbon atoms and one carbon-carbon double bond, in an amount between about 60 and about 90 weight percent on a total solids basis, and a silane comprising a terminal vinyl group in an amount between about 5 and about 25 weight percent on a total solids basis.
PPG Industries | Date: 2017-02-10
Provided is a method of preparing a transparent, non-elastomeric optical article including (1) combining to form a reaction mixture free of urethanation catalysts (a) a polyisocyanate component; and (b) an active hydrogen component of polyol and/or polythiol, and at least one compound containing both amine and hydroxyl functional groups; (2) allowing the polyisocyanate component to react with amine functional groups in the active hydrogen component to form an intermediate product including a polyurea prepolymer having hydroxyl functional groups in admixture with the polyol and/or polythiol and, optionally, the compound containing both amine and hydroxyl functional groups; (3) mixing the intermediate product with additional polyisocyanates and optionally a urethanation catalyst to form a second reaction mixture; (4) introducing the second reaction mixture to a mold to form a thermoset polymerizate; and (5) releasing the polymerizate from the mold. Optical films and articles prepared by the method also are provided.
PPG Industries | Date: 2017-05-31
The invention relates to a paint mixing room (1) comprising a base portion (2), four walls (3), a top portion (4) and at least one door (5) located in one the walls (3); at least one shelf (6), particularly for water-borne products, solvent-borne products and/or color tools; at least one workbench (7); a color station (8) comprising e.g. a personal computer, a spectrophotometer, and a barcode reader; a connector for an electrical power supply; and a ventilation system (11); wherein the paint mixing room (1) is portable. At least one of the four walls (3) is moveable relative to the other walls (3) to extend the working space inside the paint mixing room (1).
PPG Industries | Date: 2017-04-26
An elastic gas barrier coating composition includes a barrier material dispersed in an aqueous media, a polysulfide, and a curing agent reactive with the polysulfide. When applied to a substrate and cured to form a coating, the barrier material forms a continuous phase and a polysulfide elastomer forms a discontinuous phase. An elastic gas coating is also disclosed that includes a continuous phase with a barrier material and a discontinuous phase with a polysulfide elastomer. Substrates at least partially coated with elastic gas barrier coating compositions are further disclosed.