Method for grading water-absorbent polymer particles

Details Method for grading water-absorbent polymer particles Method for grading water-absorbent polymer particles

2011-06-28

2011-06-28

Matthews, Terrell H (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Special applications

C209S011000, C209S017000, C209S032000, C209S522000, C209S388000, C525S375000, C521S031000

Reexamination Certificate

active

07967148

ABSTRACT:
A process for classifying water-absorbing polymer beads, wherein screens having different mesh sizes are used before and after the postcrosslinking to remove the oversize.

REFERENCES:
patent: 2683533 (1954-07-01), Paul
patent: 3061095 (1962-10-01), O'Malley
patent: 3620368 (1971-11-01), Comis et al.
patent: 4192920 (1980-03-01), Amick
patent: 6164455 (2000-12-01), Kakita et al.
patent: 2007/0161759 (2007-07-01), Riegel et al.
patent: 2008/0202987 (2008-08-01), Weismantel et al.
patent: 10 2005 001 789 (2006-07-01), None
patent: 0 855 232 (1998-07-01), None
patent: 2003-320308 (2003-11-01), None
patent: 2003320308 (2003-11-01), None
patent: WO-92/18171 (1992-10-01), None
patent: WO-2005/080479 (2005-09-01), None
patent: WO-2006/074816 (2006-07-01), None
Buccholz et al.,Modern Superabsorbent Polymer Technology, Wiley-VCH, pp. 71-103 (1998).
International Search Report and Written Opinion in PCT/EP2007/060073 dated Feb. 1, 2008.
Wessel,Ulmanns Encyclopädie der technischen Chemie, 4th edition, Verlag Chemie, Weinheim, v.2, pp. 34-56 (1972).

Affiliated with

Also associated with

Rating

Method for grading water-absorbent polymer particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for grading water-absorbent polymer particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for grading water-absorbent polymer particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2667444