Allison Park, PA, United States
Allison Park, PA, United States

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.


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A float glass system (10) includes a float bath (14) having a pool of molten metal (16). A chemical vapor deposition coater (32) is located in the float bath (14) above the pool of molten metal (16). The coater (32) includes at least one low-coherence interferometry probe (38) located in or on the coater (32) and connected to a low-coherence interferometry system (36). Another low-coherence interferometry probe 138 can be located outside an exit end of the float bath (14) and connected to the same or another low-coherence interferometry system (36).


Embodiments of the present invention described herein relate to fiberglass materials, composite glass materials, methods of making fiberglass materials and composite glass materials, and different applications of fiberglass materials and composite glass materials. The fiberglass materials can include a bimodal particle size distribution. The fiberglass materials can include an average aspect ratio of greater than about 2 to 1. Also described herein are composite glass materials including a first glass material and a second material. The second material can include at least one of post-consumer glass waste, fly ash, metakaolin, and slag. Also described herein are methods of making a composite glass material including providing a first glass material to a mixer; providing a second material to the mixer; and co-milling the first glass material and a second material to form a composite glass material.


A coating composition comprising a resinous binder and up to 10 percent by weight of a phosphatized polyester. The compositions are useful for coating containers of all sorts such as food and beverage containers, and the phosphatized polyester provides enhanced adhesion of the coating to the container substrate. The compositions can be formulated to be substantially free of bisphenol A (BPA) and bisphenol A diglycidyl ether (BADGE).


Patent
PPG Industries | Date: 2016-11-03

A coating composition comprising a polyether polyol having a hydroxyl functionality of 3 to 8 and the reaction product of:


An exemplary polymerizable composition includes the reaction product of (a) diethyleneglycol bischloroformate; (b) allyl alcohol; (c) a cyclic polyol selected from the group consisting of a cycloaliphatic polyol having at least one secondary hydroxyl group, a heterocyclic polyol having primary and/or secondary hydroxyl groups, and mixtures thereof; (d) optionally, ethyleneglycol bischloroformate; and (e) optionally, at least one linear or branched aliphatic polyol having two to six hydroxyl groups. Another exemplary polymerizable composition includes the reaction product of (a) allyl alcohol; (b) a cyclic polyol selected from the group consisting of a cycloaliphatic polyol having at least one secondary hydroxyl group, a heterocyclic polyol having primary and/or secondary hydroxyl groups, and mixtures thereof; (c) ethyleneglycol bischloroformate; and (d) optionally, at least one linear or branched aliphatic polyol having two to six hydroxyl groups is also described. A reaction product, a polymerizate including the polymerizable composition, and an optical article including the polymerizable composition are also provided.


Patent
PPG Industries | Date: 2016-11-30

A transparency, e.g. an aircraft laminated windshield, includes one or more moisture sensors to monitor moisture penetration to monitor performance of the moisture barrier. At least one of the moisture sensors includes an electrolyte between and in ionic contact with two electrically conductive electrodes. Measuring the potential between the first and second electrode and/or the current through the electrodes to determine the amount of moisture within the laminated windshield in the area of the moisture sensor. With the information provided by the moisture sensors performance of the windshield is available to schedule timely repair or replacement of the windshield that is performing outside of acceptable limits.


A process for coating a plastic, electroconductive substrate is provided, comprising: (a) electrophoretically depositing on the substrate a curable, electrodepositable coating composition to form an electrodeposited coating over at least a portion of the substrate, the electrodepositable coating composition comprising a resinous phase dispersed in an aqueous medium, said resinous phase comprising: (b) heating the coated substrate to a temperature less than 250 F. for a time sufficient to cure the electrodeposited coating on the substrate.


Patent
PPG Industries | Date: 2016-08-19

A batch process for preparing a molded optical article includes introducing (i) a dithiol component or (ii) a polyisocyanate component into a reaction vessel; adding a first catalyst of organotin halide to form a first reaction mixture; heating the first reaction mixture; introducing a second catalyst of tertiary amine to the first reaction mixture; mixing a polyisocyanate (ii) into the reaction vessel containing the first reaction mixture if dithiol (i) was first added, or mixing a dithiol (i) into the first reaction mixture if the polyisocyanate (ii) was first added, to form a second reaction mixture; filling a mold with the second reaction mixture to provide a filled mold to form a molded optical article. The molar ratio of elemental tin present in the first catalyst to tertiary amine compound present in the second catalyst ranges from 0.04:1 to 0.29:1.


Patent
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.


Patent
PPG Industries | Date: 2017-04-12

Compositions for coating food or beverage containers comprising a resinous binder and 5 to 35 percent by weight of an epoxidized olefin-polyamide product.

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