Fibrous structures with labile active substance

Details Fibrous structures with labile active substance Fibrous structures with labile active substance

1997-01-30

1999-09-14

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

156 622, 156 626, 4283044, 4283073, 4283077, 428327, 428357, 442375, 442417, B32B 516

Patent

active

059520922

ABSTRACT:
A fibrous structure comprising a fibrous matrix with immobilized surrogate particles, is provided. A labile active substance is selectively deposited on the immobilized surrogate particles. In one embodiment, the surrogate particles are porous and have surface cavities, and the labile active substance is deposited in the pores and surface cavities. In another embodiment, the labile active substance is in attractive association with or attached to the surrogate particles.

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patent: 5462908 (1995-10-01), Liang et al.
patent: 5486410 (1996-01-01), Groeger et al.
patent: 5605746 (1997-02-01), Groeger et al
patent: 5674339 (1997-10-01), Groeger et al.
patent: 5736473 (1998-04-01), Cohen et al.
Biopore Technology Report, No. 1, Jan. 1997, Biopore Corporation.

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