Porous silicon oxide drying agents for waterborne latex paint compositions
AssigneePotters Industries, Inc.
InventorsSuruliappa Jeganathan, Chris Davies, Kevin Goforth
Life of this patent
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Abstract
A highway marking paint is provided formed from a waterborne latex paint and porous silica having a pore volume in the range of 0.3 cc/g to 3.0 cc/g. The silica enables the paint to achieve sufficient viscosity to permit the application of a highway marking of at least 40 mil and preferably at least 120 mil. The highway marking paint can also include retroreflective glass beads. Optionally, the highway marking paint further includes an acrylic polymer emulsion. The porous silica can be mixed with an ion exchange resin to control the drying properties of the paint.
Claims17
A highway marking paint comprising:
- a. waterborne latex paint;
- and
- b. porous silica having a pore volume in the range of 0.3 cc/g to 3.0 cc/g.
A highway marking having a thickness of at least 40 mil comprising:
- a. waterborne latex paint;
- b. porous silica having a pore volume in the range of 0.3 cc/g to 3.0 cc/g.
A method of applying a highway marking comprising the steps of:
- a. providing a paint composition formed of a waterborne latex paint, porous silica having a pore volume in the range of 0.3 cc/g to 3.0 cc/g, retroreflective glass beads and an acrylic polymer emulsion
- b. applying said paint composition to a transportation corridor at a thickness of at least 40 mil.
Dependencies are inferred from the claim text.