Polyurethane foam-filled foams and method of producing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4438221
SERIAL NO

06497034

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Polyurethane foam products comprising a foam filled with a foam and a large amount of solid material inert to the foam products are described. The foams are prepared by foaming a polyurethane foam-forming diisocyanate and polyol around pre-formed polyurethane foam chips having incorporated therein or therewith solid materials inert to the foam. The inert material can be a fire- or combustion-retardant material; a material such as graphite or the like to render the foam conductive; or a filler material to impart various other characteristics. The polyurethane foam-filled foams can be tailored to have excellent physical characteristics and are particularly suitable for furniture upholstery, cushioning applications including in mattresses, and where special properties are required.

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Patent Owner(s)

  • WM. T. BURNETT & CO.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Buchanan, Michael S Baltimore, MD 7 311
Fracalossi, Roland N Baltimore, MD 7 203
Greenhouse, Walter V V Baltimore, MD 7 239

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