[12] Patent
[11] Patent No.:GC0009319  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141278
Date of the Decision to Grant the Patent:10/Dec/2018

[21] Application No.:GC 2011-18337

[22] Filing Date:4/5/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- Gonglu Tian ،2- David L. Bergman, Jr.،3- Yaru Shi

[73] Owner: EVONIK CORPORATION, 299 Jefferson Road, Parsippany, , USA

[74] Agent: Suleiman I. Al-Ammar Law Office




Int. Cl.: A61L 15/26 (2006.01)

[56] Cited Documents:

-DE 10 2006 054158 A1 (WACKER CHEMIE AG[DE]) 21 May 2008
-US 3 423 376 A (GOBRAN RIAD H ET AL)21 January 1969
-EP 1 486 516 A2 (NAT STARCH CHEM INVEST[US] AKZO NOBEL NV [NL])15 December 2004
-WO 02/42344 A2 (ATOFINA [FR]; SAIJA LEOMARIO [IT]; LUGLI MARIO [IT])30 May 2002
-GB 2 453 669 A (KANSAI PAINT CO LTD [JP])15 April 2009
-US 2008/200614 Al (YANG YONG [US] ET AL)21 August 2008
Examiner: Saja Mohammed AlHassan

[57] Abstract: The present invention relates to a particulate superabsorbent polymer comprising a monomer and a crosslinkcr composition wherein the particulate superabsorbcnt polymer has a Centrifuge Retention Capacity Increase of Zg/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising a crosslinker composition comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si-O bond. The present invention further relates to an absorbent article that includes such superabsorbent polymers.
No. of claims: 9     No. of figures: 8


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