Method for the production of gypsum-based boards and stucco slurry comprising non-pregelatinized migratory starch for use therewith

    公开(公告)号:US11220461B2

    公开(公告)日:2022-01-11

    申请号:US16869555

    申请日:2020-05-07

    Abstract: 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.

    AUTOMATED DEVICE FOR CONSTRUCTION PANELS

    公开(公告)号:US20210156155A1

    公开(公告)日:2021-05-27

    申请号:US17044926

    申请日:2019-04-03

    Abstract: An automated device designed to move bearing against a construction panel, includes a frame carrying a tool designed to perform at least one mechanical operation on the construction panel, the automated device including at least one suction body designed to hold the automated device against the construction panel, and at least one system for initiating the movement of the automated device along the construction panel. The automated device includes at least one control unit designed to control at least the system for initiating the movement of the automated device according to at least one item of data relating to the position of a support of the construction panel.

    BRACING DEVICE FOR SECURING A FACING

    公开(公告)号:US20210115662A1

    公开(公告)日:2021-04-22

    申请号:US17253531

    申请日:2019-06-19

    Abstract: A bracing device for securing at least one facing panel in front of a structure, includes a mounting plate equipped with a bearing face which is planar overall, against which the facing panel can bear, the bearing face having at least one transverse dimension greater than or equal to 30 mm, and a body extending in an axial direction and equipped, at a front end, with a mechanism for securing it to the mounting plate and, at a rear end opposite to the front end, with a mechanism for securing it to the structure.

    Dry Partition Wall System and Method for Installation of a Dry Partition Wall System of this Kind

    公开(公告)号:US20200378114A1

    公开(公告)日:2020-12-03

    申请号:US16636117

    申请日:2018-08-08

    Abstract: The invention relates to a dry partition wall system (1) comprising a plurality of wall elements (2; 2′); a floor-side connection element (3) extending over several wall elements (2; 2′), a ceiling-side connection element (4) extending over several wall elements (2; 2′), wherein the plurality of wall elements (2; 2′) are arranged side by side and are retained on the floor-side connection element (3) and on the ceiling side-connection element (4) and thus jointly form a partition wall, and wherein the wall elements (2; 2′) are of multi-layer design. This dry partition wall system (1) is characterized in that each wall element (2) comprises a planking (22, 23) on both sides, with an insulating layer arranged in between, that one of the plankings (23) is of multi-part design, and that the plankings (22, 23) encompass the floor-side connection element (3) and the ceiling-side connection element (4) at the outer side. The invention relates further to a method for installing a dry partition wall system (I) of this kind. By means of the invention the installation of the dry partition wall system (1) is facilitated and an attractive optical appearance with good sound insulation effect is achieved.

    Method for the production of gypsum-based boards and stucco slurry comprising non-pregelatinized migratory starch for use therewith

    公开(公告)号:US10683235B2

    公开(公告)日:2020-06-16

    申请号:US16060783

    申请日:2016-12-14

    Abstract: 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.

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