The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Oct. 14, 2005
Ulrich Riegel, Landstuhl, DE;
Thomas Daniel, Waldsee, DE;
Dieter Hermeling, Böhl-Iggelheim, DE;
Mark Elliott, Ludwigshafen, DE;
Ulrich Riegel, Landstuhl, DE;
Thomas Daniel, Waldsee, DE;
Dieter Hermeling, Böhl-Iggelheim, DE;
Mark Elliott, Ludwigshafen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to finely divided water-absorbing polymeric particles having high fluid transportation and absorption performance, the Centrifuge Retention Capacity (CRC) being not less than 26 g/g, the absorbency under a load of 4.83 kPa (AUL0.7 psi) not less than 23 g/g and the Transportation Value (TV) not less than 15,000 cms, the Transportation Value (TV) being the product of Saline Flow Conductivity (SFC) and wicking absorption after 60 minutes (DA) multiplied by 10, and wherein the wicking absorption after 60 minutes (DA) is the weight of 0.9% by weight sodium chloride solution absorbed by 70 g of the water-absorbing polymeric particles in 60 minutes, wherein the water-absorbing polymeric particles are situated, during measurement, in a circularly round vessel which has an internal diameter of 6 cm and is sealed at its lower end by a sieve base of 36 μm mesh size, and the sieve base is in atmospheric contact with 0.9% by weight sodium chloride solution, processes for their preparation and also their use in hygiene articles and packaging materials.