公开(公告)号：DE602004002202D1

公开(公告)日：2006-10-12

申请号：DE602004002202

申请日：2004-03-19

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  AZAD M ,  CARRICO W ,  WOODRUM T ,  MITCHELL A ,  KIKAMA MA-IKAY

IPC: A61L15/60 ,  A61L15/42 ,  C08F2/10 ,  C08F4/40

Abstract: A color-stable superabsorbent polymer having long-term color stability, and methods of manufacturing the polymer, are disclosed. The superabsorbent polymer is prepared using a sulfinic acid derivative, like 2-hydroxy-2-sulfinatoacetic acid, a salt thereof, or a mixture thereof, as the reducing agent in a polymerization initiator system for the preparation of a superabsorbent polymer from monomers. The resulting superabsorbent polymer resists color degradation during periods of extended storage, even at an elevated temperature and humidity.

公开(公告)号：DE50005996D1

公开(公告)日：2004-05-13

申请号：DE50005996

申请日：2000-01-29

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA ,  BROWN D ,  ENGELHARDT FRIEDRICH ,  WOODRUM T

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F8/00 ,  C08F20/06 ,  C08F20/58 ,  C08F22/02 ,  C08F22/38 ,  C08F28/02 ,  C08F220/04 ,  C08F291/00 ,  C08J3/12 ,  C08J3/24 ,  C08F220/06 ,  A61L15/00

公开(公告)号：DE602004002202T2

公开(公告)日：2007-01-04

申请号：DE602004002202

申请日：2004-03-19

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  AZAD M ,  CARRICO W ,  WOODRUM T ,  MITCHELL A ,  KIKAMA MA-IKAY

IPC: A61L15/60 ,  A61L15/42 ,  C08F2/10 ,  C08F4/40

Abstract: A color-stable superabsorbent polymer having long-term color stability, and methods of manufacturing the polymer, are disclosed. The superabsorbent polymer is prepared using a sulfinic acid derivative, like 2-hydroxy-2-sulfinatoacetic acid, a salt thereof, or a mixture thereof, as the reducing agent in a polymerization initiator system for the preparation of a superabsorbent polymer from monomers. The resulting superabsorbent polymer resists color degradation during periods of extended storage, even at an elevated temperature and humidity.

公开(公告)号：DE60303962T2

公开(公告)日：2006-08-10

申请号：DE60303962

申请日：2003-07-24

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  AZAD M ,  MITCHELL A ,  WOODRUM T ,  CHIANG G-J ,  BROWN D ,  ROBINSON C

IPC: A61F13/53 ,  A61L15/18 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/12 ,  B01J20/26 ,  C08F2/44 ,  C08J3/00 ,  C08J3/12 ,  C08J3/20 ,  C08J3/21 ,  C08J3/215 ,  C08K3/34 ,  C08L1/00 ,  C08L101/14

Abstract: Superabsorbent polymer (SAP) particels containing a clay are disclosed. The clay is added to an SAP hydrogel prior to SAP neutralization to provide particles having improved fluid acquisition rates and an improved permeability of a fluid through the swollen SAP-clay particles. Diaper cores and absorbent articles containing the SAP-clay particles also are disclosed.

公开(公告)号：DE60303962D1

公开(公告)日：2006-05-04

申请号：DE60303962

申请日：2003-07-24

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  AZAD M ,  MITCHELL A ,  WOODRUM T ,  CHIANG G-J ,  BROWN D ,  ROBINSON C

IPC: A61F13/53 ,  A61L15/18 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/12 ,  B01J20/26 ,  C08F2/44 ,  C08J3/00 ,  C08J3/12 ,  C08J3/20 ,  C08J3/21 ,  C08J3/215 ,  C08K3/34 ,  C08L1/00 ,  C08L101/14

Abstract: Superabsorbent polymer (SAP) particels containing a clay are disclosed. The clay is added to an SAP hydrogel prior to SAP neutralization to provide particles having improved fluid acquisition rates and an improved permeability of a fluid through the swollen SAP-clay particles. Diaper cores and absorbent articles containing the SAP-clay particles also are disclosed.