公开(公告)号：US20220071818A9

公开(公告)日：2022-03-10

申请号：US17048354

申请日：2019-04-09

Applicant: BASF SE

Inventor： Stephan Bauer ,  Katrin Baumann ,  Norbert Herfert ,  Li Guo DUAN ,  Le LI ,  Xiao Yan LIU ,  Gao Min SUN

IPC: A61F13/53 ,  A61L15/24 ,  A61L15/60

Abstract: The present disclosure relates to fluid absorbent cores including at least one absorption layer, the layer including at least 80% by weight of water-absorbent polymer particles, 0 to 10% by weight of an adhesive and from 0 to 10% by weight of fibrous material, wherein the water-absorbent polymer particles within the absorption layer are water-absorbent polymer particles having a vortex of 40 s or less and having a roundness of 0.79 to 0.85 and/or a CRC of 38 g/g to 85 g/g.

公开(公告)号：US20210169709A1

公开(公告)日：2021-06-10

申请号：US17048354

申请日：2019-04-09

Applicant: BASF SE

Inventor： Stephan Bauer ,  Katrin Baumann ,  Norbert Herfert ,  Li Guo DUAN ,  Le LI ,  Xiao Yan LIU ,  Gao Min SUN

IPC: A61F13/53 ,  A61L15/24 ,  A61L15/60

Abstract: The present disclosure relates to fluid absorbent cores including at least one absorption layer, the layer including at least 80% by weight of water-absorbent polymer particles, 0 to 10% by weight of an adhesive and from 0 to 10% by weight of fibrous material, wherein the water-absorbent polymer particles within the absorption layer are water-absorbent polymer particles having a vortex of 40 s or less and having a roundness of 0.79 to 0.85 and/or a CRC of 38 g/g to 85 g/g.

公开(公告)号：US20210298962A1

公开(公告)日：2021-09-30

申请号：US17263781

申请日：2019-07-23

Applicant: BASF SE

Inventor： Hui Ge ,  Norbert Herfert ,  Mark Elliott ,  Michael Mitchell ,  Le LI ,  Gao Min Sun

IPC: A61F13/472 ,  A61F13/53 ,  A61L15/60 ,  C08F220/06 ,  A61L15/24

Abstract: Described herein is a feminine hygiene absorbent article, including: (A) an upper liquid-pervious layer, (B) a lower liquid-impervious layer, (C) a fluid-absorbent core between the layer (A) and the layer (B), including 5% to 50% by weight of water-absorbent polymer particles G and not more than 95% by weight of fibrous material, based on the sum of water-absorbent polymer particles G and fibrous material; (D) an optional acquisition-distribution layer between (A) and (C), (E) an optional tissue layer disposed immediately above and/or below (C); and (F) other optional components, where the water-absorbent polymer particles G are obtainable by agglomerating a blend of non-surface post-crosslinked fine water-absorbent polymer particles and surface post-crosslinked fine water-absorbent polymer particles, and drying, grinding, sieving and classifying the agglomerated water-absorbent polymer particles.