Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-07-12
2005-07-12
Egwim, Kelechi C. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S801000, C525S329700, C427S133000, C427S372200, C427S375000, C427S385500, C427S393500, C427S445000
Reexamination Certificate
active
06916864
ABSTRACT:
The present invention refers to a high internal phase polyelectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyelectrolyte. The present invention also refers to a process for preparing such emulsions and for inverting these emulsions so as to form films or other patterns of the superabsorbent polymer. Absorbent structures containing SAP films or other patterns prepared by the present invention are also contemplated.
REFERENCES:
patent: 3624019 (1971-11-01), Anderson et al.
patent: 3926891 (1975-12-01), Gross et al.
patent: 4052353 (1977-10-01), Scanley
patent: 4071650 (1978-01-01), Gross
patent: 4076928 (1978-02-01), Gross
patent: 4117184 (1978-09-01), Erickson et al.
patent: 4171296 (1979-10-01), Connelly et al.
patent: 4339371 (1982-07-01), Robinson et al.
patent: 5387207 (1995-02-01), Dyer et al.
patent: 5994419 (1999-11-01), Collette et al.
patent: 6048908 (2000-04-01), Kitagawa
patent: 10105/88 (1988-04-01), None
patent: 0349240 (1997-04-01), None
patent: 915506 (1991-07-01), None
patent: 93/18223 (1993-09-01), None
patent: 95/01146 (1995-01-01), None
patent: 95/26209 (1995-10-01), None
patent: 99/00187 (1999-01-01), None
Derwent Abstract Accession No. 1998263251 of European Patent 842,952A, May 20, 1998.
Gartner Herbert A.
Herr Heike
Klier John
Mork Steven W.
Shick Reed A.
Dow Global Technologies Inc.
Egwim Kelechi C.
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