Puffed insulative material

Details Puffed insulative material Puffed insulative material

1995-02-28

1996-11-05

Thibodeau, Paul J.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

428 72, 428 74, 428 76, 428281, 428283, 428284, 4283111, 4283133, 4283144, 4283155, 4283159, 4283179, 428402, 428903, B32B 518, B32B 524, B32B 526, B32B 530

Patent

active

055715923

ABSTRACT:
The present invention is an insulation material with improved loft characteristics and methods for producing such insulation. The preferred insulation comprises a multiple layered insulation material with discrete fibers having energy expandable thermoplastic microspheres interspersed and contained therein. The use of expandable microspheres allows for (1) the introduction of unexpanded microspheres into pre-constructed insulation; and (2) expansion of the microspheres within the insulation to a diameter greater enough that the microspheres are retained in place. The insulation of the present invention exhibits many improved properties over conventional insulations, such as improved loft, better thermal insulation, improved compression resistance, and improved resilience.

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