Absorbent members having low density and basis weight acquisitio

Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

604378, A61F 1315

Patent

active

050470230

ABSTRACT:
An absorbent article wherein the deposition region of its absorbent member comprises a storage zone and an acquisition zone having a lower average density and a lower average basis weight per unit area than the storage area. The acquisition zone is positioned toward the front of either the absorbent member or the absorbent article so that the acquisition zone may most effectively and efficiently rapidly acquire discharged liquids. The absorbent member comprises a mixture of hydrophilic fibrous material and discrete particles of absorbent gelling material having a particular size distribution so as to enhance the absorbent capacity and acquisition rate of the absorbent member. The particles of absorbent gelling material are selected to have a mass median particle size greater than or equal to about 400 microns with the amounts of very large and very small particles preferably kept below certain minimum concentrations.

REFERENCES:
patent: Re29789 (1978-10-01), Kolbach
patent: 3017304 (1962-01-01), Burgeni
patent: 3371667 (1968-03-01), Morse
patent: 3403681 (1968-10-01), Hoey et al.
patent: 3441023 (1969-04-01), Rijssenbeek
patent: 3545441 (1970-12-01), Gravdahl
patent: 3592194 (1971-07-01), Duncan
patent: 3670731 (1972-06-01), Harmon
patent: 3766922 (1973-10-01), Krusko
patent: 3860002 (1975-01-01), Kolbach
patent: 3897784 (1975-08-01), Fitzgerald
patent: 3901236 (1975-08-01), Assarsson et al.
patent: 3908659 (1975-09-01), Wehrmeyer et al.
patent: 3927673 (1975-12-01), Taylor
patent: 3965904 (1976-06-01), Mesek et al.
patent: 3971373 (1976-07-01), Braun
patent: 4027672 (1977-06-01), Karami
patent: 4102340 (1978-07-01), Mesek et al.
patent: 4103058 (1978-07-01), Humlicek
patent: 4105033 (1978-08-01), Chatterjee et al.
patent: 4145464 (1979-03-01), McConnell et al.
patent: 4213459 (1980-07-01), Sigl et al.
patent: 4217901 (1980-08-01), Bradstreet et al.
patent: 4232674 (1980-11-01), Melican
patent: 4259387 (1981-03-01), Mesek
patent: 4276338 (1981-06-01), Ludwa et al.
patent: 4285342 (1981-08-01), Mesek
patent: 4333463 (1982-06-01), Holtman
patent: 4340556 (1982-07-01), Ciencewicki
patent: 4373519 (1983-02-01), Errede et al.
patent: 4381782 (1983-05-01), Mazurak et al.
patent: 4389513 (1983-06-01), Miyazaki
patent: 4397644 (1983-08-01), Matthews et al.
patent: 4401795 (1983-08-01), Herman et al.
patent: 4429001 (1984-01-01), Kolpin et al.
patent: 4443512 (1984-04-01), Delvaux
patent: 4449979 (1984-05-01), Holtman
patent: 4460642 (1984-07-01), Errede et al.
patent: 4496358 (1985-01-01), Karami et al.
patent: 4535098 (1985-08-01), Evani et al.
patent: 4551199 (1985-11-01), Kock et al.
patent: 4552938 (1985-11-01), Makita et al.
patent: 4559050 (1985-12-01), Iskra
patent: 4560372 (1985-12-01), Pieniak
patent: 4578068 (1986-03-01), Kramer et al.
patent: 4585448 (1986-04-01), Enloe
patent: 4587308 (1986-05-01), Makita et al.
patent: 4604313 (1986-08-01), McFarland et al.
patent: 4610678 (1986-09-01), Weisman et al.
patent: 4625001 (1986-11-01), Tsubakimoto et al.
patent: 4645789 (1987-02-01), Dabi
patent: 4654039 (1987-03-01), Brandt et al.
patent: 4655757 (1987-08-01), McFarland et al.
patent: 4657537 (1987-04-01), Zimmerer
patent: 4666975 (1987-05-01), Yamasaki et al.
patent: 4666983 (1987-05-01), Tsubakimoto et al.
patent: 4673402 (1987-06-01), Weisman et al.
patent: 4685909 (1987-08-01), Berg et al.
patent: 4685915 (1987-08-01), Hasse et al.
patent: 4699619 (1987-10-01), Bernardin
patent: 4699823 (1987-10-01), Kellenberger et al.
patent: 4834735 (1989-05-01), Alemany et al.
Sanyo Chem. Ind. "Superabsorbent Polymer--SANWET IM-300/SANWET IM-1000"(1982).
Nippon Shokubai Kaguku Kogyo K.K., "Aqualic CA".
Stockhausen Inc.; "Favor SAB-901"; Jul. 1983.
BASF AG, "Luquasorb HC 9/80--Superabsorbent Based on Polyacrylic Acid for Aqueous Fluids".

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Absorbent members having low density and basis weight acquisitio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Absorbent members having low density and basis weight acquisitio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorbent members having low density and basis weight acquisitio will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-537373

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.