公开(公告)号：BRPI0408243B1

公开(公告)日：2015-03-17

申请号：BRPI0408243

申请日：2004-03-19

Applicant: BASF AG

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

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

公开(公告)号：BRPI0408243A

公开(公告)日：2006-03-01

申请号：BRPI0408243

申请日：2004-03-19

Applicant: BASF AG

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

IPC: A61L15/42 ,  A61L15/60 ,  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：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：AT337801T

公开(公告)日：2006-09-15

申请号：AT04721850

申请日：2004-03-19

Applicant: BASF AG

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

IPC: A61L15/42 ,  A61L15/60 ,  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：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：AU2003253319A1

公开(公告)日：2004-03-19

申请号：AU2003253319

申请日：2003-07-25

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  KIKAMA MA-IKAY ,  CHIANG WILLIAM G-J

IPC: A61F13/15 ,  A61L15/60 ,  B01J20/26