Superabsorbent polymer particles comprising functionalizers...

Details Superabsorbent polymer particles comprising functionalizers... Superabsorbent polymer particles comprising functionalizers...

2005-08-05

2010-02-02

Zalukaeva, Tatyana (Department: 3761)

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

C604S359000, C604S360000, C604S361000, C525S220000, C525S054000, C525S031000, C526S316000, C526S313000, C526S318000, C526S317100, C526S321000, C521S148000, C521S150000, C524S522000, C428S317900

Reexamination Certificate

active

07655830

ABSTRACT:
The present invention relates to superabsorbent polymer particles having functionalizers covalently bound to the surface of precursor superabsorbent polymer particles.The functionalizers of the present invention comprise a grafting unit with a radiation activatable group and a functional unit covalently bound to the grafting unit. The grafting unit is bound to an aliphatic C—H group comprised at the surface of the precursor superabsorbent polymer particle. The functional unit comprises chemical structures which are not present in the precursor superabsorbent polymer particle. These functional units add an additional function to the precursor suberabsorbent polymer particle or modifying an existing function of the precursor superabsorbent polymer particle.Moreover, the invention relates to a process for making these superabsorbent polymer particles.

REFERENCES:
patent: 3214492 (1965-10-01), Tocker
patent: 3429852 (1969-02-01), Skoultchi
patent: 3622848 (1971-11-01), Hendrix et al.
patent: 4076663 (1978-02-01), Masuda et al.
patent: 4304895 (1981-12-01), Loshaek
patent: 4922004 (1990-05-01), Kohler et al.
patent: 5137537 (1992-08-01), Herron et al.
patent: 5147345 (1992-09-01), Young et al.
patent: 5260345 (1993-11-01), Desmarais et al.
patent: 5342338 (1994-08-01), Roe
patent: 5387207 (1995-02-01), Dyer et al.
patent: 5397316 (1995-03-01), Lavon et al.
patent: 5625222 (1997-04-01), Yoneda et al.
patent: 5705182 (1998-01-01), Brown-Skrobot
patent: 5827913 (1998-10-01), Baetzold et al.
patent: 5853867 (1998-12-01), Harada et al.
patent: 6011196 (2000-01-01), Wang et al.
patent: 6025186 (2000-02-01), Kirk et al.
patent: 6043311 (2000-03-01), Houben et al.
patent: 6229062 (2001-05-01), Mandell et al.
patent: 6239230 (2001-05-01), Eckert et al.
patent: 6391451 (2002-05-01), Mitchell et al.
patent: 6713660 (2004-03-01), Roe et al.
patent: 7166356 (2007-01-01), Flohr
patent: 7182336 (2007-02-01), Berlin et al.
patent: 7452922 (2008-11-01), Fuskushima et al.
patent: 2003/0004479 (2003-01-01), Ueda et al.
patent: 2003/0164136 (2003-09-01), Klofta et al.
patent: 2004/0127866 (2004-07-01), Odorzynski
patent: 2005/0032936 (2005-02-01), Flohr
patent: 2005/0203474 (2005-09-01), Flohr
patent: 2005/0215966 (2005-09-01), Borgmann et al.
patent: 196 19 680 (1997-11-01), None
patent: 102 21 202 (2003-07-01), None
patent: 0 279 475 (1988-08-01), None
patent: 0 377 191 (1990-07-01), None
patent: 1506788 (2005-07-01), None
patent: 1624002 (2006-02-01), None
patent: 1757646 (2007-02-01), None
patent: 2003 156961 (2003-05-01), None
patent: WO 96/15180 (1996-05-01), None
patent: WO 99/55393 (1999-11-01), None
PCT Search Report, mailed Nov. 22, 2005, 3 pages.
International Search Report dated Jul. 30, 2008 (4 pages).

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