公开(公告)号：US20220220039A1

公开(公告)日：2022-07-14

申请号：US17647400

申请日：2022-01-07

申请人： KNAUF GIPS KG

发明人： Yijun SANG ,  Suman SINHA RAY ,  Mark HEMPHILL

IPC分类号： C04B38/00 ,  C04B28/14 ,  C04B14/42 ,  C04B24/38 ,  C04B38/10 ,  B32B5/18 ,  B32B13/02 ,  B32B5/02 ,  B32B5/24 ,  B32B15/04 ,  B32B29/00 ,  B32B15/12 ,  G10K11/168 ,  G10K11/165

摘要： An open cell set gypsum core includes an interlocking matrix of gypsum having air voids distributed therein. The air voids define cells having cell walls formed by the interlocking matrix. The interlocking matrix further includes channels distributed therein. The channels interconnect the air voids and comprise openings in the cell walls.

公开(公告)号：US20230002974A1

公开(公告)日：2023-01-05

申请号：US17809101

申请日：2022-06-27

申请人： KNAUF GIPS KG

发明人： Mark K. HEMPHILL ,  Gregory K. YUM ,  Yijun SANG

IPC分类号： D21H19/54 ,  C04B28/14 ,  D21H11/02 ,  D21H17/25

摘要： A gypsum wallboard panel comprises: a gypsum core; and a paper cover sheet disposed on the gypsum core, the paper cover sheet comprising pulp fiber and an uncooked starch in an amount of at least 2% by weight of the pulp fiber.