Nonwoven fibrous mat laminate

Details Nonwoven fibrous mat laminate Nonwoven fibrous mat laminate

2005-03-08

2010-11-02

Cole, Elizabeth M (Department: 1782)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C428S219000, C428S340000, C442S390000, C442S391000, C442S398000

Reexamination Certificate

active

07824762

ABSTRACT:
A laminate is disclosed that comprises at least two layers of fibrous nonwoven mats in which the majority of the fibers in at least one of the mats are glass fibers, the layers being bonded together with an adhesive, needling, stitch bonding or a mixture of two or more of these bonding techniques, one of the mats having a basis weight of at least 3 lbs. per 100 sq. ft and at least 1.5 times the basis wt. of the other mat. The laminates are especially useful in making acoustical panels for office partitions.

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