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US 2022/0340774 A1Published application
Coating composition, coated assembly and method of sealing the surface of a fibrous web
Assignee3M Innovative Properties Company
InventorsChunjie Zhang, Pingfan Wu, Tianying Jiang, Liang Gong
Life of this patent
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Abstract
The present disclosure provides a high temperature, flame resistant and flexible coating composition based on alkali silicate and fluoropolymers. The coating can be used to bond a surface of a non-woven mat and seal the edges. The coating composition can be applied using a coating method on the surface and the edges of, for example, an inorganic fiber based non-woven mat.
Claims21
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A coated assembly comprising:
- a substrate comprising a fibrous web;
- and
- a coating disposed on the substrate, the coating comprised of a thermoplastic fluoropolymer and crosslinked alkali silicate dispersed therein.
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A method of sealing a surface of a fibrous web, the method comprising:
- applying onto the surface a mixture comprising a fluoropolymer emulsion and alkali silicate dispersed in water;
- and
- removing the water from the mixture to cure the alkali silicate and seal the surface.
Dependencies are inferred from the claim text.