Polymer composition, absorbent composition, their production and use
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 24, 1998
Grant Date -
N/A
app pub date -
Jan 26, 1996
filing date -
Mar 5, 1992
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A polymer composition, in particular an absorbent composition or an active substance-containing depot material are disclosed which substantially consist of a water-soluble and/or water-swellable polymer based on polysaccharides as the main component, and of a water-swellable polymer as further component, used as polymeric components, and of a matrix material for the prevention of separation and gel blocking, an ionic or covalent cross-linking agent, a reactive additive, as well as of an anti-blocking agent. Additionally, their production and use as well as (animal) hygiene items and chemico-technical products are disclosed which comprise these polymer compositions or absorbent compositions.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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EVONIK DEGUSSA GMBH | 45128 ESSEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bruggemann, Helmut | Duisburg, DE | 6 | 225 |
# of filed Patents : 6 Total Citations : 225 | |||
Gunther, Uwe | Tonisvorst, DE | 12 | 166 |
# of filed Patents : 12 Total Citations : 166 | |||
Klimmek, Helmut | Krefeld, DE | 23 | 631 |
# of filed Patents : 23 Total Citations : 631 |
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Patent Citation Ranking
- 18 Citation Count
- C08L Class
- 56.30 % this patent is cited more than
- 27 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Jun 06, 2012 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:STOCKHAUSEN VERWALTUNGSGESELLSCHAFT MBH;REEL/FRAME:030416/0834 Owner name: STOCKHAUSEN GMBH, GERMANY Effective Date: Jun 01, 2004 free format text: CHANGE OF NAME;ASSIGNOR:STOCKHAUSEN GMBH;REEL/FRAME:030416/0806 Owner name: EVONIK STOCKHAUSEN GMBH, GERMANY Effective Date: Sep 17, 2007 free format text: MERGER;ASSIGNOR:STOCKHAUSEN GMBH & CO. KG;REEL/FRAME:030416/0845 Owner name: STOCKHAUSEN VERWALTUNGSGESELLSCHAFT MBH, GERMANY Effective Date: May 14, 2003 free format text: MERGER;ASSIGNOR:EVONIK STOCKHAUSEN GMBH;REEL/FRAME:030417/0037 Owner name: EVONIK DEGUSSA GMBH, GERMANY Effective Date: Jun 06, 2012 |
Sep 01, 2009 | SULP | SURCHARGE FOR LATE PAYMENT | year of fee payment: 11 |
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Feb 24, 1998 | I | Issuance | |
Feb 11, 1998 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 26, 1996 | F | Filing | |
Nov 03, 1995 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BRUEGGEMANN, HELMUT;GUENTHER, UWE;KLIMMEK, HELMUT;REEL/FRAME:007871/0085;SIGNING DATES FROM 19951006 TO 19951012 Owner name: CHEMISCHE FABRIK STOCKHAUSEN GMBH, GERMANY |
Mar 05, 1992 | PD | Priority Date |

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