Global Patent Index - EP 1084174 A1

EP 1084174 A1 2001-03-21 - MECHANICALLY STABLE HYDROGELS

Title (en)

MECHANICALLY STABLE HYDROGELS

Title (de)

MECHANISCH STABILE HYDROGELE

Title (fr)

HYDROGELS A STABILITE MECANIQUE

Publication

EP 1084174 A1 (DE)

Application

EP 99922121 A

Priority

  • DE 19818852 A
  • EP 9902702 W

Abstract (en)

[origin: WO9955767A1] The invention relates to ionically cross-linked hydrogels, characterized by the addition of compounds of the formula (I) Mn[H2n+2AlnO3n+1], in which M is potassium or sodium and n is a whole number between 1 and 10. The compounds are intended for cross-linking and their pH is adjusted to between 3.0 and 9.5.

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

C08J 3/24; A61F 13/15; A61L 15/60; C08F 220/04; C08K 3/00

IPC 8 full level (invention and additional information)

A61F 13/53 (2006.01); A61F 13/49 (2006.01); A61L 15/60 (2006.01); C08F 8/44 (2006.01); C08F 220/04 (2006.01); C08J 3/24 (2006.01); C08K 3/00 (2006.01); C08L 101/00 (2006.01); A61F 13/15 (2006.01)

CPC (invention and additional information)

C08J 3/24 (2013.01); A61L 15/60 (2013.01); C08F 8/44 (2013.01); A61F 2013/530481 (2013.01); C08J 2300/14 (2013.01)

Combination set (CPC)

A61L 15/60 + C08L 33/02

Citation (search report)

See references of WO 9955767A1

Designated contracting state (EPC)

BE DE ES FI FR GB IT NL SE

EPO simple patent family

WO 9955767 A1 19991104; EP 1084174 A1 20010321; JP 2002513059 A 20020508

INPADOC legal status


2003-01-08 [18W] WITHDRAWN

- Date of withdrawal: 20021113

2002-06-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020514

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000929

2001-03-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES FI FR GB IT NL SE