Polymeric binders for binding particles to fibers

Details Polymeric binders for binding particles to fibers Polymeric binders for binding particles to fibers

1992-08-17

1996-08-06

Raimund, Christopher W.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428378, 428393, B32B 516

Patent

active

055432158

ABSTRACT:
Particles are bound to fibrous material by a polymeric binder selected from the group consisting of poly(caprolactone) diol, polyamides and polyamines. The polymeric binder has a hydrogen bonding functionality or coordinate covalent bond forming functionality on each repeating unit of the polymeric binder. As a specific example, the fibrous material is cellulosic fibers and the particles are superabsorbent particles. Preferably 3-80 percent binder and 0.05-80 percent particles, by weight of the total weight of the fibrous material, binder and particles are included. The binder preferably has a molecular weight greater than 500 grams/mole, preferably 4,000-8,000 grams/mole. Particles attached to the fibers in this manner are firmly adhered and are not easily dislodged. Fibrous products produced by this method include fibers to which particles are bound, and fibers which have been treated with the binder but to which particles are not bound.

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