Fire-retardant coating, method for producing fire-retardant...

Details Fire-retardant coating, method for producing fire-retardant... Fire-retardant coating, method for producing fire-retardant...

2008-09-30

2008-09-30

Wood, Elizabeth D (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

C252S601000, C252S607000

Reexamination Certificate

active

11156395

ABSTRACT:
The present invention relates to a fire-resistant coating and method thereof, which confers enhanced flame and heat resistance to substrate such as building materials. The invented coating is especially applicable to cellulose-based building materials including but not limited to fiberboards, wallboards, roofing materials, particleboards, ceiling tiles, soundproofing boards and hardboards. This novel composition is also useful in providing a fire-resistant coating for concrete, metals, foamed polymeric materials, gypsum and other substrates. A preferred embodiment generally comprising: mono potassium phosphate, magnesium oxide, silica powder, calcium silicate, rice hull ash and water. A method for imparting fire-retardancy to substrates using the invented composition is also described.

REFERENCES:
patent: 4871477 (1989-10-01), Dimanshteyn
patent: 5194087 (1993-03-01), Berg
patent: 6090315 (2000-07-01), Bai
patent: 6787495 (2004-09-01), Lally
patent: 7045476 (2006-05-01), Lally

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