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US5432000A Expired / Lapsed US ⏱️ 0.0 years remaining

Binder coated discontinuous fibers with adhered particulate materials

Assignee: Weyerhaeuser NR Co
•
Filing: 1991-03-22
•
Granted: 1995-07-11
•
Expires: 2011-03-22
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Abstract

Abstract A fiber product comprises dry discontinuous fibers having a starch binder on at least a portion of the fiber surfaces, at least about seventy percent of the starch binder coated fibers being unbonded to one another, solid particles are adhered to the fibers by the binder without the binder entirely coating the particles. The fibers may be air laid into a web or formed into an absorbent structure. Superabsorbent particles are a specific example of the particles which may be adhered to the fibers.

Inventors

  • 👤 Richard H. Young, Sr.
  • 👤 Amar N. Neogi
  • 👤 Michael R. Hansen
  • 👤 Kevin T. Hodgson
  • 👤 Donald D. Halabisky
  • 👤 David G. Marsh
  • 👤 Christel Brunnenkant
  • 👤 David W. Park
  • 👤 Paul G. Gaddis
  • 👤 William C. Johnston, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:52
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15617; A61F13/15658; A61F13/53; A61F13/531; A61F13/539; A61F13/84; A61F13/8405; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; D; D04; D04H; D04H1/00; D04H1/40; D04H1/407; D04H1/413; D04H1/42; D04H1/425; D04H1/4382; D04H1/43825; D04H1/43828; D04H1/43835; D04H1/54; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/46; D06M11/73; D06M11/74; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; A61F13/51; A61F13/511; A61F2013/15821; A61F2013/15934; A61F2013/15967; A61F2013/530007; A61F2013/530131; A61F2013/530343; A61F2013/530481; A61F2013/530489; A61F2013/530496; A61F2013/530569; A61F2013/530583; A61F2013/5395; A61F2013/8408; A61F2013/8414; A61F2013/842; A61F2013/8423; A61L2300/00; A61L2300/10; A61L2300/102; A61L2300/40; A61L2300/402; A61L2300/404; A61L2300/418; A61L2300/42; A61L2300/60; A61L2300/62; A61L2300/622; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2927; Y10T428/2929; Y10T428/2933; Y10T428/2938; Y10T428/2964; Y10T428/2965

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 53 words
A fiber product which comprises dry discontinuous fibers having a starch binder on at least a portion of the fiber surfaces, at least seventy percent of the starch binder coated fibers being unbonded to one another, solid particles being adhered to the fibers by the binder without the binder entirely coating the particles.
Claim 2
Dependent Claim 53 words
A fiber product which comprises dry discontinuous fibers having a starch binder on at least a portion of the fiber surfaces, at least seventy percent of the starch binder coated fibers being unbonded to one another, solid particles being adhered to the fibers by the binder without the binder entirely coating the particles.
Claim 3
Dependent Claim 28 words
A fiber product according to claim 1 in which the solid particles comprise superabsorbent particles which can absorb in excess of ten parts ok liquid per part particle.
Claim 4
Dependent Claim 25 words
A fiber product according to claim 1 in which at least about ninety-five percent of the starch binder coated fibers are unbonded to one another.
Claim 5
Dependent Claim 9 words
An absorbent structure comprised of fibers of claim 1.
Claim 6
Dependent Claim 20 words
A fiber product according to claim 1 which is comprised of fibers of claim 1 air laid into a mat.
Claim 7
Dependent Claim 57 words
A fiber product which comprises discontinuous fibers having a starch binder on at least a portion of the fiber surfaces, superabsorbent solid particles which can absorb in excess of ten parts liquid per part particle and which are adhered to the fibers by the binder, and the superabsorbent solid particles not being entirely coated by the binder.
Claim 8
Dependent Claim 57 words
A fiber product which comprises discontinuous fibers having a starch binder on at least a portion of the fiber surfaces, superabsorbent solid particles which can absorb in excess of ten parts liquid per part particle and which are adhered to the fibers by the binder, and the superabsorbent solid particles not being entirely coated by the binder.
Claim 9
Dependent Claim 20 words
A fiber product according to claim 6 which is comprised of fibers of claim 6 air laid into a mat.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-07-10 1999-01-09 1999-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-07-10 2003-01-09 2003-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-07-10 2007-01-09 2007-07-11 $7700.00 Window Closed / Lapsed

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