公开(公告)号：US11505498B2

公开(公告)日：2022-11-22

申请号：US16988773

申请日：2020-08-10

Applicant: Saint-Gobain Placo SAS

Inventor： Laura Brooks ,  Nicola Jupp ,  Joanna Sparkes ,  Adam Richardson ,  Nicholas Jones ,  Jan Rideout ,  Keith Humphrey

IPC: C04B28/14 ,  B32B5/02 ,  B32B13/02 ,  B32B13/08 ,  B27N3/00 ,  E04C2/04 ,  C04B14/42 ,  C04B18/26 ,  C04B24/26 ,  C04B24/38 ,  C04B111/00 ,  B32B13/14 ,  B32B29/00

Abstract: A plasterboard comprising a gypsum matrix having wood particles embedded therein in an amount of at least 2 wt % relative to the gypsum, the gypsum matrix further comprising glass fibres in an amount of at least 1 wt % relative to the gypsum.

公开(公告)号：US20200369569A1

公开(公告)日：2020-11-26

申请号：US16988773

申请日：2020-08-10

Applicant: Saint-Gobain Placo SAS

Inventor： Laura Brooks ,  Nicola Jupp ,  Joanna Sparkes ,  Adam Richardson ,  Nicholas Jones ,  Jan Rideout ,  Keith Humphrey

IPC: C04B28/14 ,  B32B5/02 ,  B32B13/02 ,  B32B13/08 ,  B27N3/00 ,  E04C2/04 ,  C04B14/42 ,  C04B18/26 ,  C04B24/26 ,  C04B24/38

Abstract: A plasterboard comprising a gypsum matrix having wood particles embedded therein in an amount of at least 2 wt % relative to the gypsum, the gypsum matrix further comprising glass fibres in an amount of at least 1 wt % relative to the gypsum.

公开(公告)号：US20170327424A1

公开(公告)日：2017-11-16

申请号：US15527731

申请日：2015-11-19

Applicant: Saint-Gobain Placo SAS

Inventor： Laura Brooks ,  Nicola Jupp ,  Joanna Sparkes ,  Adam Richardson ,  Jan Rideout ,  Nicolas Jones

IPC: C04B28/14 ,  C04B14/42

CPC classification number: C04B28/14 ,  C04B14/42 ,  Y02W30/97 ,  C04B18/248 ,  C04B24/383

Abstract: A method of producing a gypsum product comprises the steps of: □preparing a stucco slurry; □adding starch-containing flour to the slurry in an amount of at least 2% relative to the dry weight of the stucco; and □allowing the stucco slurry to set.

公开(公告)号：US11680019B2

公开(公告)日：2023-06-20

申请号：US16091735

申请日：2017-04-06

Applicant: Saint-Gobain Placo SAS

Inventor： Nicholas Jones ,  Adam Richardson ,  Jan Rideout ,  Laura Brooks ,  Joanna Sparkes ,  David Jalland ,  Nicola Jupp

IPC: C04B28/14 ,  E04C2/04 ,  E04C2/06 ,  C04B14/06 ,  C04B14/28 ,  C04B14/42 ,  C04B16/06 ,  C04B24/38 ,  C04B111/00 ,  C04B111/10

CPC classification number: C04B28/14 ,  C04B14/06 ,  C04B14/28 ,  C04B14/42 ,  C04B16/0675 ,  C04B24/383 ,  E04C2/043 ,  E04C2/06 ,  C04B2111/0062 ,  C04B2111/1006 ,  Y02W30/91 ,  C04B28/14 ,  C04B14/42 ,  C04B24/2623 ,  C04B28/14 ,  C04B14/06 ,  C04B14/28 ,  C04B14/42 ,  C04B18/24 ,  C04B24/2623 ,  C04B24/2641

Abstract: A panel has a gypsum matrix, in which the following additives are embedded: glass fibre in an amount greater than 1 wt % relative to the gypsum and a synthetic polymeric binder in an amount greater than 2.5 wt % relative to the gypsum. The glass fibre and synthetic polymeric binder are present in a weight ratio of at least 2 parts binder to one part fibre. The amount of sand present in the gypsum matrix lies in the range 0-0.5 wt % relative to the gypsum. The amount of cellulosic fibre present in the gypsum matrix lies in the range 0-2 wt % relative to the gypsum.

公开(公告)号：US20220098858A1

公开(公告)日：2022-03-31

申请号：US17499328

申请日：2021-10-12

Applicant: Saint-Gobain Placo SAS

Inventor： Laura Brooks ,  Nicola Jupp ,  Joanna Sparkes ,  Adam Richardson ,  Nicholas Jones ,  Jan Rideout

IPC: E04C2/04 ,  C04B28/14 ,  C04B14/42 ,  C04B24/26 ,  C04B24/38

Abstract: A gypsum product has a first polymeric additive and a second polymeric additive distributed therein, wherein the first polymeric additive is a synthetic polymer and the second polymeric additive is starch.
It has been found that the combination of starch and a synthetic polymer may result in one or more of the following advantages in the manufacture and performance of gypsum products: increased strength; greater ease of manufacturing due to the increased fluidity of stucco slurries containing both additives; and increased resistance to hygroscopic expansion.

公开(公告)号：US20210214937A1

公开(公告)日：2021-07-15

申请号：US17271082

申请日：2019-09-10

Applicant: SAINT-GOBAIN PLACO

Inventor： Jan Rideout ,  Nicholas Jones

IPC: E04B2/74 ,  E04B2/72

Abstract: A partition (10), mounted on a mounting surface, comprises a plurality of elongate upright members (16, 18), a first board (20) and a second board (22). The first board is mounted on one side of a pair of the elongate upright members that are adjacent to each other, and the second board is mounted on the other side of the same pair of adjacent elongate upright members, so as to provide a cavity (24) between the pair of elongate upright members and the first and second boards. The partition further comprises a spacer (26) that is located within the cavity, the maximum dimension of the spacer in the through-thickness direction of the partition being at least 90% of the separation of the two boards. The spacer may help to reduce the extent of inward bowing of the boards between adjacent elongate upright members, so that, for example, the upright members may be spaced further apart

公开(公告)号：US10731343B2

公开(公告)日：2020-08-04

申请号：US15521335

申请日：2015-11-19

Applicant: Saint-Gobain Placo SAS

Inventor： Laura Brooks ,  Nicola Jupp ,  Joanna Sparkes ,  Elodie Taboulot ,  Adam Richardson ,  Nicholas Jones ,  Jan Rideout

IPC: E04C2/04 ,  C04B28/14 ,  C04B14/42 ,  C04B16/02 ,  C04B24/38 ,  C04B111/00

Abstract: A plasterboard comprises a gypsum matrix having a polymeric additive distributed therein in an amount of at least 1 wt % relative to the gypsum, the gypsum matrix further having a first group of fibres and a second group of fibres embedded therein, wherein the fibres of the first group of fibres have an average length that is at least three times the average length of the fibres of the second group of fibres.

公开(公告)号：US11447952B2

公开(公告)日：2022-09-20

申请号：US16917302

申请日：2020-06-30

Applicant: Saint-Gobain Placo SAS

Inventor： Laura Brooks ,  Nicola Jupp ,  Joanna Sparkes ,  Elodie Taboulot ,  Adam Richardson ,  Nicholas Jones ,  Jan Rideout

IPC: E04C2/04 ,  C04B28/14 ,  C04B14/42 ,  C04B16/02 ,  C04B24/38 ,  C04B111/00

Abstract: A plasterboard comprises a gypsum matrix having a polymeric additive distributed therein in an amount of at least 1 wt % relative to the gypsum, the gypsum matrix further having a first group of fibres and a second group of fibres embedded therein, wherein the fibres of the first group of fibres have an average length that is at least three times the average length of the fibres of the second group of fibres.

公开(公告)号：US11198645B2

公开(公告)日：2021-12-14

申请号：US16822664

申请日：2020-03-18

Applicant: SAINT-GOBAIN PLACO

Inventor： Laura Brooks ,  Robin Fisher ,  Jan Rideout

IPC: C04B28/14 ,  C04B22/08 ,  C04B24/42 ,  C04B111/28 ,  C04B111/34

Abstract: The present invention provides calcium sulphate-based product having reduced shrinkage after exposure to high temperatures, the product comprising gypsum, a pozzolan source e.g. in an amount between 4-27 wt %) and a metal salt additive in an amount between 0.5 and 10 wt %). The pozzolan source may be selected from a kaolinitic clay material, fly ash, rice husk ash, diatomaceous earths, volcanic ashes and pumices, micro-silica, silica fume and silicone oil, The metal salt additive may be a metal salt which decomposes between a temperature of 300-500° C. to yield a metal oxide, e.g. magnesium nitrate.

公开(公告)号：US11117834B2

公开(公告)日：2021-09-14

申请号：US15524956

申请日：2015-11-17

Applicant: SAINT-GOBAIN PLACO

Inventor： Laura Brooks ,  Robin Fisher ,  Jan Rideout

IPC: C04B28/14 ,  C04B22/06 ,  C04B22/14 ,  C04B103/56 ,  C04B111/00 ,  C04B111/28

Abstract: A calcium sulphate-based product including gypsum and a shrinkage resistance additive. The shrinkage resistance additive is a metal nitrate, hydroxide, acetate or sulphate and is preferably provided in an amount greater than 4 wt % (based on the amount of additive and gypsum). The additive may be a nitrate of an alkali metal (e.g. potassium), an alkaline earth metal (e.g. magnesium or calcium), a transition metal (e.g. iron or zinc) or aluminium.