Global patent index - EP 0796144 A4

EP 0796144 A4 2000-03-29 - ABSORBENT MATERIAL

Title (en)

ABSORBENT MATERIAL

Title (de)

ABSORBIERENDES MATERIAL

Title (fr)

MATIERE ABSORBANTE

Publication

EP 0796144 A4 (EN)

Application

EP 95940778 A

Priority

  • IT TO940991 A
  • US 9515139 W

Abstract (en)

[origin: WO9617681A1] The present invention provides a superabsorbent material which comprises a combination of: (1) an anionic superabsorbent in which from 20 to 100 % of the functional groups are in free acid form, and (2) a cationic superabsorbent in which from 20 to 100 % of the functional groups in basic form, the cationic superabsorbent being based on a polysaccharide or a polymer of units of a monomer of formula (I) wherein R<1> and R<2> which may be the same or different, are each organic radicals which do not adversely affect the properties of the polymer and X is a suitable anion. The combination is particularly effective as a superabsorbent in the case of electrolyte containing solutions such as menses and urine.

IPC 1-7 (main, further and additional classification)

B01J 20/00; A61F 13/15; A61F 13/20; B01J 20/22; B01J 20/26

IPC 8 full level (invention and additional information)

A61F 13/53 (2006.01); A61F 13/15 (2006.01); A61F 13/49 (2006.01); A61L 15/60 (2006.01); B01J 20/26 (2006.01); C08F 26/02 (2006.01); C08L 101/14 (2006.01)

CPC (invention and additional information)

A61L 15/60 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

WO 9617681 A1 19960613; AU 4241796 A 19960626; BR 9509864 A 19971125; CA 2207081 A1 19960613; CA 2207081 C 20010417; CN 1173146 A 19980211; CZ 9701699 A3 19971015; EP 0796144 A1 19970924; EP 0796144 A4 20000329; FI 972385 A0 19970605; FI 972385 A 19970605; HU T77680 A 19980728; IT 1267184 B1 19970128; IT TO940991 A1 19960606; IT TO940991 D0 19941206; JP H10509915 A 19980929; MX 9704177 A 19980628; NO 972549 A 19970806; NO 972549 D0 19970604

INPADOC legal status

2002-08-28 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020219

2001-09-26 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010808

2000-03-29 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000215

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

1997-09-24 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19970517

1997-09-24 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE