 Water based coating composition and polymer film coated therewith |
| What is claimed is: 1. A water based antistatic polymer film coating composition comprising: (a) at ... |
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| Oligomeric aromatic dispersing agents, method of making same, and dispersions made therefrom |
| OF THE PREFERRED EMBODIMENTS As stated above, the oligomeric aromatic dispersant is a reaction ... |
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| Softening non-swelling polyurethane |
| While this invention is satisfied by embodiments in many different forms, there will herein be ... |
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| Coating composition of an acrylic polymer, polyol and polyisocyanate crosslinking agent |
| We claim: 1. A clear coating composition which cures at ambient temperatures having a film forming ... |
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| Coating composition of hydroxy functional acrylic polymer, polyol and polyisocyanate crosslinking agent |
| We claim: 1. A clear coating composition having a film forming binder solids content of about 30-70%... |
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| Polypropylene resin composition |
| What is claimed is: 1. A polypropylene resin composition consisting essentially of 50 to 90% by ... |
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| Coating composition having low volatile organic content |
| OF THE INVENTION The coating composition includes, in an organic phase, a polymer, preferably an ... |
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| Molded product of a polypropylene resin |
| Under these circumstances, it is an object of this invention to provide a molded product of a ... |
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| Corrosion resistant coating for an iron-based part and method for applying same |
| OF THE PREFERRED EMBODIMENTS The preferred embodiments of this invention will now be described. T... |
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| Polyurethane composition |
| 1. A polyurethane composition comprising a polyurethane having compounded therein: (a) a hindered ... |
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Coating compositions having improved scratch resistance, coated substrates and methods related thereto
| Details |
Inventors: Anderson, Lawrence G.; Barkac, Karen A.; DeSaw, Shawn A.; Hartman, Marvis E.; Hayes, Deborah E.; Hockswender, Thomas R.; Kuster, Kymarie L.; Nakajima, Masayuki; Olson, Kurt G.; Sadvary, Richard J.; Simpson, Dennis A.; Tyebjee, Shiryn; Wilt, Truman F.;
Assignee: PPG Industries Ohio, Inc. (Cleveland, OH)
Primary Examiner: Lu; Caixia
Assistant Examiner:
Attorney, Agent or Firm: Altman; Deborah M.
Compositions are provided which contain (a) one or more polysiloxanes comprising at least one reactive functional group; a plurality of particles; and, optionally, one or more curing agents comprising at least one functional group that is reactive with any reactive functional group of polysiloxane (a). Additionally, a process for applying the multi-component composite coatings described above to a substrate and coated substrates are provided. A process for preparing the coating compositions also is provided. The multi-component composite coating compositions of the invention provide highly scratch resistant color-plus-clearcoatings capable of retaining scratch resistance after weathering. |
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DETAILED DESCRIPTION OF THE DRAWINGS FIG.
1 is a transmission electron micrograph (30,000.
times.
magnification) of a cross-section of a cured transparent topcoating composition of the present invention which contains both colloidal silica and polysiloxane; FIG.
2 is a transmission electron micrograph (30,000.
times.
magnification) of a cross-section of a comparative example of a transparent topcoating composition which contains colloidal silica but not polysiloxane; FIG.
3 is a transmission electron micrograph of a cross-section of the cured transparent topcoating composition of FIG.
1, but viewed at 54,000.
times.
magnification; FIG.
4 is a transmission electron micrograph (105,000.
times.
magnification) of a cross-section of a cured transparent topcoating composition of the present invention which included a preformed dispersion of colloidal silica and polysiloxane; FIG.
5 is a graph of scratch depth as a function of load over a given scratch distance showing scratch (mar) resistance of a commercial two-component polyurethane coating; and FIG.
6 is a graph of scratch depth as a function of load over a given scratch distance showing scratch (mar) resistance of a two-component coating containing colloidal silica and polysiloxane of the present invention.
FIG.
7 is a transmission electron micrograph (105,000.
times.
magnification) of a cross-section of a cured transparent topcoating composition of the present invention, taken generally perpendicular to the surface of the coating, which included a preformed polysiloxane dispersion comprising 2% colloidal silica.
FIG.
8 is a transmission electron micrograph (105,000.
times.
magnification) of a cross-section of a cured transparent topcoating composition of the present invention, taken at an angle with respect to the surface of the coating, which included a preformed polysiloxane dispersion comprising 2% colloidal silica.
FIG.
9 is a transmission electron micrograph (105,000.
times.
magnification) of a cross-section of a cured transparent topcoating composition of the present invention, taken generally perpendicular to the surface of the coating, which included a preformed polysiloxane dispersion comprising 8
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Adhesives and Rubbers 
