Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1976-10-04
1977-08-09
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
156291, 428212, 428220, 428286, 428296, 428298, 428300, 428302, 428340, 428903, 428910, B32B 2700
Patent
active
040412032
ABSTRACT:
A non-woven fabric-like material comprising an integrated mat of generally discontinuous, thermoplastic polymeric microfibers and a web of substantially continuous and randomly deposited, molecularly oriented filaments of a thermoplastic polymer. The polymeric microfibers have an average fiber diameter of up to about 10 microns while the average diameter of filaments in the continuous filament web is in excess of about 12 microns. Attachment between the microfiber mat and continuous filament web is achieved at intermittent discrete regions in a manner so as to integrate the continuous filament web into an effective load bearing constituent of the material. The material has desirable strength characteristics and possesses a textile-like appearance, drape and hand. By autogenously bonding the mat and web together in a manner so as to provide substantially uniform discrete bond regions, particularly outstanding strength characteristics with respect to energy absorption, tensile strength, and tear resistance can be achieved.
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patent: 3676242 (1972-07-01), Prentice
patent: 3704198 (1972-11-01), Prentice
patent: 3755527 (1973-08-01), Keller et al.
patent: 3795571 (1974-03-01), Prentice
patent: 3837995 (1974-09-01), Floden
patent: 3849241 (1974-11-01), Butin et al.
Brock Robert J.
Meitner Gary H.
Bell James J.
Kimberly-Clark Corporation
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