Method of making resilient batt

Details Method of making resilient batt Method of making resilient batt

1994-12-27

1996-09-10

Maki, Steven D.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563096, 156324, 264112, 264122, 264126, B32B 3112, D04H 154

Patent

active

055542387

ABSTRACT:
Batt style insulation comprised of cellulosic and thermoplastic material and a method of making such insulation. A blend of cellulosic material and thermoplastic fibrous material, wherein the latter comprises between 3%-15% of the blend by weight, is formed by a method such as air-laying into a low density, high loft mat. The surface of the mat is flame-treated to melt the thermoplastic component on the surface, forming a skin which keeps the cellulosic component intact. The thermoplastic component in the interior of the mat remains unmelted, thereby providing the mat with a spring-back characteristic which allows the mat to retain most of its original shape and loft even after it has been compressed for shipping. A facing sheet can be applied to the surface of the mat, as is done with conventional fiberglass batt-style insulation.

REFERENCES:
patent: 2543101 (1951-02-01), Francis
patent: 3100733 (1963-08-01), Bundy
patent: 5057168 (1991-10-01), Muncrief
patent: 5188896 (1993-02-01), Suh et al.
patent: 5318644 (1994-06-01), McBride et al.
patent: 5456872 (1995-10-01), Ahrweiler
patent: 5470424 (1995-11-01), Isaac et al

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