Absorbent articles with absorbent free-flowing particles and...

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With squeezing – compression – rubbing – kneading

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C162S141000, C604S375000

Reexamination Certificate

active

06562192

ABSTRACT:

BACKGROUND
Absorbent articles for collecting body exudates typically comprise bulky fibrous absorbent webs as the main absorbent material for collecting body fluids. These webs often collapse when wetted, resulting in decreased void volume and degraded body-fit after the article is wetted. They also often lack the ability to conform well to the body of a wearer. What is needed are improved absorbent articles or absorbent materials capable of overcoming various limitations of past approaches. More specifically, improved materials and articles are needed that are capable of providing at least one of improved body fit, conformability, maintenance of void volume when wet or absorbency.
SUMMARY
It has been discovered that fibrous nits can be useful in absorbent articles, particularly when treated to have suitable particle size ranges, free flowing properties, or other properties. Methods have been developed for production of fibrous nits produced by disperging fibers, including disperging fibers in the presence of a nit conditioner which modifies nit properties such as particle size or other attributes. Related methods produce two or more kinds of nits which can be coupled for use in absorbent articles. Methods for incorporating the particles of the present invention into absorbent articles are also disclosed.


REFERENCES:
patent: 1843037 (1932-01-01), Mathey
patent: 2064431 (1936-12-01), Jurgensen
patent: 2331355 (1943-10-01), Strongson
patent: 2516384 (1950-07-01), Hill et al.
patent: 2747575 (1956-05-01), Mercer
patent: 2787271 (1957-04-01), Clark
patent: 2952260 (1960-09-01), Burgeni
patent: 3029817 (1962-04-01), Harwood et al.
patent: 3036573 (1962-05-01), Voigtman et al.
patent: 3143113 (1964-08-01), Mills
patent: 3211147 (1965-10-01), Pherson et al.
patent: 3230955 (1966-01-01), Joa et al.
patent: 3343543 (1967-09-01), Glassman
patent: 3395201 (1968-07-01), Kalwaites
patent: 3395708 (1968-08-01), Hervey et al.
patent: 3411504 (1968-11-01), Glassman
patent: 3430630 (1969-03-01), Megison et al.
patent: 3468311 (1969-09-01), Gallagher
patent: 3554862 (1971-01-01), Hervey et al.
patent: 3556932 (1971-01-01), Coscia et al.
patent: 3556933 (1971-01-01), Williams et al.
patent: 3559650 (1971-02-01), Larson
patent: 3575174 (1971-04-01), Mogor
patent: 3585104 (1971-06-01), Kleinert
patent: 3592194 (1971-07-01), Duncan
patent: 3595235 (1971-07-01), Jespersen
patent: 3599388 (1971-08-01), Feingold
patent: 3612504 (1971-10-01), Matsuda
patent: 3677886 (1972-07-01), Forsshlad et al.
patent: 3700623 (1972-10-01), Keim
patent: 3736931 (1973-06-01), Glassman
patent: 3772076 (1973-11-01), Keim
patent: 3836336 (1974-09-01), Yasui et al.
patent: 3885158 (1975-05-01), Flutie et al.
patent: 3886941 (1975-06-01), Duane et al.
patent: 3889679 (1975-06-01), Taylor
patent: 3899388 (1975-08-01), Petrovich et al.
patent: 3901236 (1975-08-01), Assarsson et al.
patent: 3903890 (1975-09-01), Mesek et al.
patent: 3954107 (1976-05-01), Chesky et al.
patent: 3972855 (1976-08-01), Martinsson et al.
patent: 4015604 (1977-04-01), Csillag
patent: 4029101 (1977-06-01), Chesky et al.
patent: 4036679 (1977-07-01), Back et al.
patent: 4059114 (1977-11-01), Richards
patent: 4062362 (1977-12-01), Schaar
patent: 4069822 (1978-01-01), Buell
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4129528 (1978-12-01), Petrovich et al.
patent: 4144122 (1979-03-01), Emanuelsson et al.
patent: 4147586 (1979-04-01), Petrovich et al.
patent: 4200103 (1980-04-01), Black et al.
patent: 4222921 (1980-09-01), Van Eenam
patent: 4247362 (1981-01-01), Williams
patent: 4282874 (1981-08-01), Mesek
patent: 4303471 (1981-12-01), Laursen
patent: 4324246 (1982-04-01), Mullane et al.
patent: 4327728 (1982-05-01), Elias
patent: 4340058 (1982-07-01), Pierce et al.
patent: 4342314 (1982-08-01), Radel et al.
patent: 4351699 (1982-09-01), Osborn, III
patent: 4397644 (1983-08-01), Matthews et al.
patent: 4405326 (1983-09-01), Lenaghan
patent: 4410324 (1983-10-01), Sabee
patent: 4431479 (1984-02-01), Barbe et al.
patent: 4432833 (1984-02-01), Breese
patent: 4460642 (1984-07-01), Errede et al.
patent: 4463045 (1984-07-01), Ahr et al.
patent: 4476180 (1984-10-01), Wnuk
patent: 4476323 (1984-10-01), Hellsten et al.
patent: 4482429 (1984-11-01), Klowak
patent: 4482833 (1984-11-01), Weinert et al.
patent: 4490147 (1984-12-01), Pierce et al.
patent: 4522967 (1985-06-01), Sheldon et al.
patent: 4524474 (1985-06-01), Svensson
patent: 4556146 (1985-12-01), Swanson et al.
patent: 4568341 (1986-02-01), Mitchell et al.
patent: 4573986 (1986-03-01), Minetola et al.
patent: 4578070 (1986-03-01), Holtman
patent: 4578071 (1986-03-01), Buell
patent: 4589876 (1986-05-01), Van Tilburg
patent: 4594130 (1986-06-01), Chang et al.
patent: 4627848 (1986-12-01), Lassen et al.
patent: 4636209 (1987-01-01), Lassen
patent: 4643726 (1987-02-01), Gegelys
patent: 4650481 (1987-03-01), O'Connor et al.
patent: 4654161 (1987-03-01), Kollmeier et al.
patent: 4655759 (1987-04-01), Romans-Hess et al.
patent: 4657538 (1987-04-01), Becker et al.
patent: 4675394 (1987-06-01), Solarek et al.
patent: 4676784 (1987-06-01), Erdman et al.
patent: 4676786 (1987-06-01), Nishino
patent: 4678464 (1987-07-01), Holtman
patent: 4681793 (1987-07-01), Linman et al.
patent: 4687478 (1987-08-01), Van Tilburg
patent: 4717498 (1988-01-01), Maxon
patent: 4723953 (1988-02-01), Rosenbaum et al.
patent: 4753644 (1988-06-01), Cottenden et al.
patent: 4758240 (1988-07-01), Glassman
patent: 4773905 (1988-09-01), Molee et al.
patent: 4781711 (1988-11-01), Houghton et al.
patent: 4787896 (1988-11-01), Houghton et al.
patent: 4793898 (1988-12-01), Laamanen et al.
patent: 4795452 (1989-01-01), Blaney et al.
patent: 4804380 (1989-02-01), Lassen et al.
patent: 4865597 (1989-09-01), Mason, Jr. et al.
patent: 4879170 (1989-11-01), Radwanski et al.
patent: 4886513 (1989-12-01), Mason, Jr. et al.
patent: 4900318 (1990-02-01), Toth
patent: 4936839 (1990-06-01), Molee et al.
patent: 4950264 (1990-08-01), Osborn, III
patent: 4960845 (1990-10-01), O'Lenick, Jr.
patent: 4963139 (1990-10-01), Dabroski
patent: 4973325 (1990-11-01), Sherrod et al.
patent: 4981557 (1991-01-01), Bjorkquist
patent: 4988344 (1991-01-01), Reising et al.
patent: 5007906 (1991-04-01), Osborn, III et al.
patent: 5008344 (1991-04-01), Bjorkquist
patent: 5009653 (1991-04-01), Osborn, III
patent: 5030229 (1991-07-01), Yang
patent: 5030314 (1991-07-01), Lang
patent: 5048589 (1991-09-01), Cook et al.
patent: 5070168 (1991-12-01), O'Lenick, Jr.
patent: 5070171 (1991-12-01), O'Lenick, Jr.
patent: 5073619 (1991-12-01), O'Lenick, Jr.
patent: 5085736 (1992-02-01), Bjorkquist
patent: 5098979 (1992-03-01), O'Lenick, Jr.
patent: 5102501 (1992-04-01), Eber et al.
patent: 5104396 (1992-04-01), Oatley et al.
patent: 5120812 (1992-06-01), O'Lenick, Jr. et al.
patent: 5135294 (1992-08-01), Ohshima et al.
patent: 5147343 (1992-09-01), Kellenberger
patent: 5149765 (1992-09-01), O'Lenick, Jr.
patent: 5151091 (1992-09-01), Glaug et al.
patent: 5167654 (1992-12-01), Yang
patent: 5171302 (1992-12-01), Buell
patent: 5188625 (1993-02-01), Van Iten et al.
patent: 5190563 (1993-03-01), Herron et al.
patent: 5196499 (1993-03-01), O'Lenick, Jr.
patent: 5197959 (1993-03-01), Buell
patent: 5225047 (1993-07-01), Graef et al.
patent: 5237035 (1993-08-01), O'Lenick, Jr. et al.
patent: 5242435 (1993-09-01), Murji et al.
patent: 5267992 (1993-12-01), Van Tilburg
patent: 5275591 (1994-01-01), Mavinkurve
patent: 5280099 (1994-01-01), Imperante et al.
patent: 5281208 (1994-01-01), Thompson et al.
patent: 5296434 (1994-03-01), Karl et al.
patent: 5300055 (1994-04-01), Buell
patent: 5300358 (1994-04-01), Evers
patent: 5300666 (1994-04-01), Imperante et al.
patent: 5324278 (1994-06-01), Visscher et al.
patent: 5348547 (1994-09-01), Payne et al.
patent: 5348620 (1994-09-01), Hermans et al.
patent: 5350624 (1994-09-01), Georger et al.
patent: 5356405 (1994-10-01), Thompson et al.
patent: 5360422 (1994-11-01), Brownlee et al.
patent: 5399175 (1995-03-01), Glaug et al.
patent: 5399412 (1995-03-01), Sudall et al.
patent: 5401267 (1995-03-01), Coutur

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 articles with absorbent free-flowing particles and... 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 articles with absorbent free-flowing particles and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorbent articles with absorbent free-flowing particles and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3064051

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