公开(公告)号：US11220461B2

公开(公告)日：2022-01-11

申请号：US16869555

申请日：2020-05-07

申请人： Saint-Gobain Placo SAS

发明人： Richard Morlat ,  James Fletcher ,  Radomir Kamler

IPC分类号： B32B27/02 ,  C04B28/14 ,  C04B11/00 ,  B28B5/02 ,  B28B11/12 ,  B28B17/02 ,  C04B14/42 ,  C04B24/38 ,  C04B111/00

摘要： A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: •forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; •casting the mixture in a continuous band; •maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; •cutting the band to form one or more wet panel precursors; and •drying the wet panel precursor to form one or more gypsum-based panels. •The weight ratio of water to stucco in the mixture is less than 0.7; •the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; •the starch is present in the mixture in an amount of over 3 wt % relative to the stucco; •the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; •the fluidizer is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.

公开(公告)号：US10683235B2

公开(公告)日：2020-06-16

申请号：US16060783

申请日：2016-12-14

申请人： Saint-Gobain Placo SAS

发明人： Richard Morlat ,  James Fletcher ,  Radomir Kamler

IPC分类号： C04B28/14 ,  C04B11/00 ,  B28B5/02 ,  B28B17/02 ,  B28B11/12 ,  C04B14/42 ,  C04B24/38 ,  C04B111/00

摘要： A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: • forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; • casting the mixture in a continuous band; • maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; • cutting the band to form one or more wet panel precursors; and • drying the wet panel precursor to form one or more gypsum-based panels. • The weight ratio of water to stucco in the mixture is less than 0.7; • the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; • the starch is present in the mixture in an amount of over 3 wt % relative to the the stucco; • the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; • the fluidizer is is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.

公开(公告)号：US20200262756A1

公开(公告)日：2020-08-20

申请号：US16869555

申请日：2020-05-07

申请人： Saint-Gobain Placo SAS

发明人： Richard Morlat ,  James Fletcher ,  Radomir Kamler

IPC分类号： C04B28/14 ,  C04B11/00 ,  B28B5/02 ,  B28B11/12 ,  B28B17/02 ,  C04B14/42 ,  C04B24/38

摘要： A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: •forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; •casting the mixture in a continuous band; •maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; •cutting the band to form one or more wet panel precursors; and •drying the wet panel precursor to form one or more gypsum-based panels. •The weight ratio of water to stucco in the mixture is less than 0.7; •the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; •the starch is present in the mixture in an amount of over 3 wt % relative to the the stucco; •the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; •the fluidizer is is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.

公开(公告)号：US20180354857A1

公开(公告)日：2018-12-13

申请号：US16060783

申请日：2016-12-14

申请人： Saint-Gobain Placo SAS

发明人： Richard Morlat ,  James Fletcher ,  Radomir Kamler

IPC分类号： C04B28/14 ,  C04B24/38 ,  C04B14/42 ,  B28B17/02 ,  B28B5/02 ,  B28B11/12

摘要： A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: •forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; •casting the mixture in a continuous band; •maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; •cutting the band to form one or more wet panel precursors; and •drying the wet panel precursor to form one or more gypsum-based panels. •The weight ratio of water to stucco in the mixture is less than 0.7; •the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; •the starch is present in the mixture in an amount of over 3 wt % relative to the the stucco; •the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; •the fluidizer is is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.