Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating or impregnation is water absorbency-increasing or...
Reexamination Certificate
2001-12-12
2004-09-07
Ruddock, Ula (Department: 1771)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Coating or impregnation is water absorbency-increasing or...
C428S323000, C428S326000, C428S327000, C428S484100, C428S485000, C428S497000
Reexamination Certificate
active
06787489
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The present invention relates to an improved absorbent mixture and product which will expand to fill a void when exposed to liquid water.
By way of background, various types of absorbent mixtures and products are known. However, insofar as known, such absorbent mixtures and products have not in the past contained superabsorbents in a wax base.
BRIEF SUMMARY OF THE INVENTION
It is one object of the present invention to provide a mixture containing a superabsorbent which will not expand when exposed to water vapor, but will only expand when subjected to liquid water.
It is another object of the present invention to provide an absorbent product, such as an elongated string containing a superabsorbent which can be produced on a continuous basis and which is flexible so that it can be wound to be stored and which will not absorb moisture from the air but will absorb liquid aqueous solutions when it is subjected thereto.
A further object of the present invention is to provide an improved absorbent mixture which can readily be used to impregnate flexible porous bases, such as strings or sheets and which will not absorb moisture from the air but will only absorb liquid water and which will expand to fill a void. Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to an absorbent mixture comprising a superabsorbent, a wax and a channeling agent.
The present invention also relates to a superabsorbent product comprising a porous member, a superabsorbent, a wax and a channeling agent.
The various aspects of the present invention will be more readily understood when the following portions of the specification are read in conjunction with the accompanying drawings wherein:
REFERENCES:
patent: 1059061 (1913-04-01), Miller
patent: 1856890 (1932-05-01), Stokes
patent: 1867067 (1932-07-01), Fischer
patent: 2094691 (1937-10-01), Williams
patent: 2164764 (1939-07-01), Claypoole
patent: 2915110 (1959-12-01), Ferguson et al.
patent: 4728111 (1988-03-01), Yoshijima et al.
patent: 5390939 (1995-02-01), Terauchi et al.
patent: 5736473 (1998-04-01), Cohen et al.
patent: 5767176 (1998-06-01), Nakanishi et al.
patent: RE36206 (1999-05-01), Borneby
Patrone Louis
Riemenschneider Paul A.
Gastel Joseph P.
Multisorb Technologies, Inc.
Ruddock Ula
LandOfFree
Absorbent mixture and product 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 mixture and product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorbent mixture and product will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3238323