Title:
【発明の名称】荷重下で水性液体および血液を吸収し得る粉末状重合体、それらの製造方法、並びに身体衛生のための編織布構造におけるそれらの使用
Document Type and Number:
Japanese Patent JPH08508517
Kind Code:
A
Abstract:
PCT No. PCT/EP93/03586 Sec. 371 Date Jun. 30, 1995 Sec. 102(e) Date Jun. 30, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/15651 PCT Pub. Date Jun. 21, 1994The invention relates to powdery cross-linked polymers (superabsorbers) capable of absorbing aqueous liquids and blood, which are formed of 55-99.9%-wt. polymerized unsaturated, polymerizable acid-groups-comprising monomers which are neutralized to the extent of at least 25 mol-%, b) 0-40%-wt. polymerized unsaturated monomers copolymerizable with a), c) 0.1-5.0%-wt. of a cross-linking agent, d) 0-30%-wt. of a water-soluble polymer, whereby the weight amounts of a) to d) relate to anhydrous polymers, characterized in that 100 parts of the particle-shaped polymers have been mixed with an aqueous solution consisting of a maximum of 10 parts of an at least 10% phosphoric acid and a) 0.05-0.3 parts of a compound capable of reacting with at least two carboxyl groups and not comprising an alkali-salt-forming group in the molecule, and/or b) 0.05-1 parts of a compound capable of reacting with at least two carboxyl groups and comprising an alkali-salt-forming group in the molecule, and that they have been heated to 150 DEG -250 DEG C. The superabsorbers according to the invention have a high retention capacity, high gel strength and a high absorption under load and can be manufactured without an organic solvent and with only a small amount of treatment agent for the surface treatment of the powdery polymer. The invention further relates to the use of said polymers in textile constructions for the absorption of body liquids, said constructions preferably consisting of 2 to 80%-wt. superabsorber and the remainder up to 100 of hydrophilic fibers.
Inventors:
Klimek, Helmut
Brehm, Helmut
Brehm, Helmut
Application Number:
JP51563094A
Publication Date:
September 10, 1996
Filing Date:
December 17, 1993
Export Citation:
Assignee:
Chemiche Fabric Stockhausen Gaembehr
International Classes:
A61F13/53; A61L15/24; A61L15/60; C08F2/00; A61L15/16; C08F2/32; C08F8/00; C08F8/44; C08F20/06; C08F20/52; C08F20/56; C08F120/04; C08F220/04; C08J3/12; C08J3/24; (IPC1-7): C08F2/00; C08F20/56; C08F20/06; A61L15/60
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)