Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Reexamination Certificate
2008-07-08
2008-07-08
Le, H. T (Department: 1794)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
C428S130000, C428S407000, C428S913000, C604S367000, C604S370000, C604S372000
Reexamination Certificate
active
10912001
ABSTRACT:
This invention is directed to an absorbent structure comprising a solid, typically particulate, water-swellable material that comprises coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400% or even at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material.
REFERENCES:
patent: 4062817 (1977-12-01), Westerman
patent: 4093776 (1978-06-01), Aoki et al.
patent: 4156664 (1979-05-01), Skinner et al.
patent: 4392908 (1983-07-01), Dehnel
patent: 4541871 (1985-09-01), Obayashi et al.
patent: 4625001 (1986-11-01), Tsubakimoto et al.
patent: 4666983 (1987-05-01), Tsubakimoto et al.
patent: 4734445 (1988-03-01), Noda et al.
patent: RE32649 (1988-04-01), Brandt et al.
patent: 4824901 (1989-04-01), Alexander et al.
patent: 4835211 (1989-05-01), Noda et al.
patent: 4980231 (1990-12-01), Baker et al.
patent: 5140076 (1992-08-01), Hatsuda et al.
patent: 5164459 (1992-11-01), Kimura et al.
patent: 5470964 (1995-11-01), Qin
patent: 5562646 (1996-10-01), Goldman et al.
patent: 5633316 (1997-05-01), Gartner et al.
patent: 5714156 (1998-02-01), Schmidt et al.
patent: 5731365 (1998-03-01), Engelhardt et al.
patent: 5840329 (1998-11-01), Bai
patent: 5849816 (1998-12-01), Suskind et al.
patent: 5851672 (1998-12-01), Wang et al.
patent: 5976696 (1999-11-01), Collette et al.
patent: 6140550 (2000-10-01), Beihoffer et al.
patent: 6150469 (2000-11-01), Harada et al.
patent: 6239230 (2001-05-01), Eckert et al.
patent: 6376011 (2002-04-01), Reeves et al.
patent: 6376618 (2002-04-01), Mitchell et al.
patent: 6387495 (2002-05-01), Reeves et al.
patent: 6391451 (2002-05-01), Mitchell et al.
patent: 6534572 (2003-03-01), Ahmed et al.
patent: 7049000 (2006-05-01), Fossum et al.
patent: 2002/0128618 (2002-09-01), Frenz et al.
patent: 0 799 258 (1997-10-01), None
patent: 56 159232 (1981-12-01), None
patent: WO 90/08789 (1990-08-01), None
patent: WO 92/16565 (1992-10-01), None
patent: WO 93/05080 (1993-03-01), None
patent: WO 96/14885 (1996-05-01), None
patent: WO 03/043670 (2003-05-01), None
Metin, Tihminlioglu, Balkose, and Ulku “The effect of interfacial interactioins on the mechanical properties of polypropylene
atural zeolite composites”, composites: Part A 35 (2004) 23-32.
Jangala and Rong, “Making Rayon Fiber 1999”.
Ehrnsperger Bruno Johannes
Fossum Renae Dianna
Goldman Stephen Allen
Meyer Axel
Schmidt Mattias
Colbert John P.
Dressel Sarah Ann
The Procter & Gamble & Company
LandOfFree
Absorbent article comprising coated water-swellable material 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 article comprising coated water-swellable material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorbent article comprising coated water-swellable material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3918243