FI72289B - Byggnadsplatta som omfattar haerdad gips eller cementerande maerial och foerfarande foer dess framstaellning - Google Patents
Byggnadsplatta som omfattar haerdad gips eller cementerande maerial och foerfarande foer dess framstaellning Download PDFInfo
- Publication number
- FI72289B FI72289B FI801765A FI801765A FI72289B FI 72289 B FI72289 B FI 72289B FI 801765 A FI801765 A FI 801765A FI 801765 A FI801765 A FI 801765A FI 72289 B FI72289 B FI 72289B
- Authority
- FI
- Finland
- Prior art keywords
- fabric
- core
- layer
- board
- mixture
- Prior art date
Links
- 239000004744 fabric Substances 0.000 claims description 69
- 239000000835 fiber Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 9
- 239000011152 fibreglass Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 4
- 239000012784 inorganic fiber Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 239000011505 plaster Substances 0.000 claims 1
- 239000010440 gypsum Substances 0.000 description 34
- 229910052602 gypsum Inorganic materials 0.000 description 34
- 239000000203 mixture Substances 0.000 description 34
- 239000011162 core material Substances 0.000 description 29
- 239000010410 layer Substances 0.000 description 16
- 239000003365 glass fiber Substances 0.000 description 15
- 239000004570 mortar (masonry) Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000002557 mineral fiber Substances 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 101100285402 Danio rerio eng1a gene Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011426 gypsum mortar Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/42—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0006—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects the reinforcement consisting of aligned, non-metal reinforcing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
- B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
- B28B5/027—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
- Y10T428/249999—Differentially filled foam, filled plural layers, or filled layer with coat of filling material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Producing Shaped Articles From Materials (AREA)
- Panels For Use In Building Construction (AREA)
- Finishing Walls (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Claims (8)
1. Byggnadsskiva (29) , som omfattar en kärna (31) av härdad gips eller cementerande material och ett oorganiskt fiberskikt (17, 21) pä ena eller bäda ytorna av kärnan, känneteck-n a d därav, att ett banformigt fiberskikt (17, 21) är impreg-nerat med kärnans (31) material och att kärnans material ocksä sträcker sig igenom fiberskiktet (17, 21) och bildar en konti-nuerlig film (32) over skivans (29) yttre yta.
2. Byggnadsskiva enligt patentkravet 1, känneteck-n a d därav, att ytfilmens (32) material har en större täthet och mindre porositet än själva kärnans (31) material.
3. Byggandsskiva enligt patentkravet 1 eller 2, känne-t e c k n a d därav, att fiberskiktet .(17, 21) är en hartsbunden glasfiberfiltvävnad.
4. Byggnadsskiva enligt nägot av patentkraven l-*3, k ä n -netecknad därav, att den kontinuerliga filmens (32) tjocklek ej överstiger 2 millimeter.
5. Byggnadsskiva enligt nägot av patentkraven 1-4, k ä n -netecknad därav, att den kontinuerliga filmen (32) omfattar en yttre ythinna, vars täthet är större och porositet mindre än den övriga filmens täthet och porositet.
6. Förfarande för framställning av en byggnadsskiva enligt patentkravet 1, kännetecknad därav, att banformigt oorganiskt fibersskikt(17, 21) bringas i kontakt med den ena eller bäda ytorna av ett vattenuppslamningsskikt av cementerande material (26) mellan motstäende stödytor (19, 23) och att stödytan (19, 23) (eller stödytorna) i kontakt med fiberskiktet (17, 21) utsätts för vibration tills uppslamningen genomtränger skiktet och bildar en kontinuerlig film (32) over skiktets (17, 21) yttre yta.
7. Förfarande enligt patentkravet 6, kännetecknad därav, att stödytorna (19, 23) är flexibla band och att de utsätts för vibration medelst mekanisk rörelse som riktar sig mot de ytor som är avlägsna frän uppslamningen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7918871 | 1979-05-30 | ||
| GB7918871 | 1979-05-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI801765A FI801765A (fi) | 1980-12-01 |
| FI72289B true FI72289B (fi) | 1987-01-30 |
| FI72289C FI72289C (sv) | 1987-05-11 |
Family
ID=10505541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI801765A FI72289C (sv) | 1979-05-30 | 1980-05-30 | Byggnadsplatta som omfattar härdad gips eller cementerande material oc h förfarande för dess framställning |
Country Status (26)
| Country | Link |
|---|---|
| US (1) | US4378405A (sv) |
| JP (2) | JPS55162487A (sv) |
| AT (1) | AT385233B (sv) |
| AU (1) | AU531527B2 (sv) |
| BE (1) | BE883527A (sv) |
| CA (1) | CA1148458A (sv) |
| CH (1) | CH637320A5 (sv) |
| DE (1) | DE3019917C2 (sv) |
| DK (1) | DK152687C (sv) |
| ES (1) | ES8102493A1 (sv) |
| FI (1) | FI72289C (sv) |
| FR (1) | FR2457754A1 (sv) |
| GB (1) | GB2053779B (sv) |
| GE (1) | GEP19981259B (sv) |
| GR (1) | GR68472B (sv) |
| IE (1) | IE49483B1 (sv) |
| IT (1) | IT1131220B (sv) |
| LU (1) | LU82494A1 (sv) |
| NL (1) | NL8003121A (sv) |
| NO (1) | NO151352C (sv) |
| NZ (1) | NZ193792A (sv) |
| PL (1) | PL126492B1 (sv) |
| SE (1) | SE441610B (sv) |
| SU (1) | SU1706381A3 (sv) |
| UA (1) | UA6319A1 (sv) |
| ZA (1) | ZA803205B (sv) |
Families Citing this family (115)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8201677A (nl) * | 1981-05-01 | 1982-12-01 | Bpb Industries Plc | Bouwcomponent. |
| GB2119703B (en) * | 1982-04-30 | 1985-10-23 | Bpb Industries Plc | Cementitious board manufacture |
| US4450022A (en) * | 1982-06-01 | 1984-05-22 | United States Gypsum Company | Method and apparatus for making reinforced cement board |
| GB8322645D0 (en) * | 1983-08-23 | 1983-09-28 | Lambeg Ind Research Assn | Textile reinforced cement structure |
| US5220762A (en) * | 1984-02-27 | 1993-06-22 | Georgia-Pacific Corporation | Fibrous mat-faced gypsum board in exterior and interior finishing systems for buildings |
| US5148645A (en) * | 1984-02-27 | 1992-09-22 | Georgia-Pacific Corporation | Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board |
| US4810569A (en) * | 1984-02-27 | 1989-03-07 | Georgia-Pacific Corporation | Fibrous mat-faced gypsum board |
| US5644880A (en) | 1984-02-27 | 1997-07-08 | Georgia-Pacific Corporation | Gypsum board and systems containing same |
| US4647496A (en) * | 1984-02-27 | 1987-03-03 | Georgia-Pacific Corporation | Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings |
| DE3508933A1 (de) * | 1985-03-13 | 1986-10-09 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Nichtbrennbare gipsbauplatte mit glasfaserlage |
| US4916004A (en) * | 1986-02-20 | 1990-04-10 | United States Gypsum Company | Cement board having reinforced edges |
| ES2031473T3 (es) * | 1986-07-08 | 1992-12-16 | Rudolf Leis | Losa compound con capa de piedra natural |
| CA1341084C (en) * | 1987-11-16 | 2000-08-15 | George W. Green | Coated fibrous mat-faced gypsum board resistant to water and humidity |
| US4879173A (en) * | 1988-01-06 | 1989-11-07 | Georgia-Pacific Corporation | Glass mat with reinforcing binder |
| US4948647A (en) * | 1989-02-13 | 1990-08-14 | National Gypsum Company | Gypsum backer board |
| DE3937433A1 (de) * | 1989-11-10 | 1991-05-16 | Knauf Westdeutsche Gips | Gipsbauplatte mit kaschierungen aus beschichteten glasfaservliesen und verfahren zur herstellung derselben |
| DE4017057C2 (de) * | 1990-05-26 | 1999-11-04 | Peter Breidenbach | Lehmbauplatte und Verfahren zu ihrer Herstellung |
| US5763043A (en) * | 1990-07-05 | 1998-06-09 | Bay Mills Limited | Open grid fabric for reinforcing wall systems, wall segment product and methods of making same |
| US5547743A (en) * | 1993-11-16 | 1996-08-20 | Rumiesz, Jr.; Joseph | Thin high density glass fiber panel |
| DE19527857C2 (de) * | 1994-09-15 | 1996-10-10 | Knauf Westdeutsche Gips | Gipsbauplatte mit beschichteter Glasvlieslage |
| DE19527858C2 (de) * | 1994-09-15 | 1998-03-26 | Knauf Westdeutsche Gips | Verfahren zur Herstellung einer mit beschichtetem Glasvlies kaschierten Gipsbauplatte |
| ES2158923T3 (es) | 1994-09-15 | 2001-09-16 | Knauf Westdeutsche Gips | Placa de construccion de yeso con capa de napa de vidrio revestida. |
| GB2316693B (en) * | 1996-08-29 | 2000-05-31 | Bpb Plc | Building board |
| GB9701500D0 (en) | 1997-01-24 | 1997-03-12 | Bpb Plc | Non-woven inorganic fibre mat |
| AU742857B2 (en) | 1997-07-16 | 2002-01-17 | Fletcher Building Holdings Limited | Reinforced plasterboard |
| CA2211984C (en) | 1997-09-12 | 2002-11-05 | Marc-Andre Mathieu | Cementitious panel with reinforced edges |
| US6316087B1 (en) * | 1997-09-18 | 2001-11-13 | Warren Lehan | Synthetic structural panel and method for manufacture |
| GB2337276B (en) * | 1998-05-13 | 2002-05-08 | Bpb Plc | Plasterboard |
| GB9812326D0 (en) * | 1998-06-08 | 1998-08-05 | Bpb Industries Plc | Fire resisting wall |
| US6508895B2 (en) | 1998-09-09 | 2003-01-21 | United States Gypsum Co | Method of producing gypsum/fiber board |
| US6368024B2 (en) | 1998-09-29 | 2002-04-09 | Certainteed Corporation | Geotextile fabric |
| US6703331B1 (en) | 1999-02-25 | 2004-03-09 | E. I. Du Pont De Nemours And Company | Fungus resistant gypsum-based substrate |
| CN1416390A (zh) | 2000-01-05 | 2003-05-07 | 美国圣戈班技术织物有限公司 | 光滑增强水泥板及其制备方法 |
| MXPA03001176A (es) * | 2000-08-07 | 2004-07-30 | Lafarge Platers | Producto de panel de yeso liviano y metodo de fabricacion. |
| WO2002033191A1 (en) | 2000-10-17 | 2002-04-25 | National Gypsum Properties, Llc | Cementitious panel with basalt fiber reinforced major surface(s) |
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| US6838163B2 (en) * | 2001-04-12 | 2005-01-04 | Milliken & Company | Composite facer for wallboards |
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| US7435369B2 (en) | 2001-06-06 | 2008-10-14 | Bpb Plc | Method for targeted delivery of additives to varying layers in gypsum panels |
| US6524679B2 (en) | 2001-06-06 | 2003-02-25 | Bpb, Plc | Glass reinforced gypsum board |
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| FR2825658B1 (fr) * | 2001-06-07 | 2007-08-31 | Bpb Plc | Procede de fabrication d'une plaque a base de liant tel que platre, ciment ou autre, extrudeur pour la mise en oeuvre d'un tel procede, et plaque ainsi obtenue et son utilisation |
| US20050077655A1 (en) * | 2002-02-18 | 2005-04-14 | Nissan Kenzai Co., Ltd. | Method of preventing adhesion of gypsum foreign matter of gypsum slurry, gypsum slurry supply stabilizing device with gypsum foreign matter adhesion prevention device, and method of manufacturing gypsum board by using the stabilizing device |
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| US7028436B2 (en) * | 2002-11-05 | 2006-04-18 | Certainteed Corporation | Cementitious exterior sheathing product with rigid support member |
| US7049251B2 (en) * | 2003-01-21 | 2006-05-23 | Saint-Gobain Technical Fabrics Canada Ltd | Facing material with controlled porosity for construction boards |
| US20040152379A1 (en) * | 2003-01-30 | 2004-08-05 | Mclarty George C. | Textile reinforced wallboard |
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| US20040219845A1 (en) * | 2003-04-29 | 2004-11-04 | Graham Samuel E. | Fabric reinforced cement |
| US7513768B2 (en) * | 2003-09-18 | 2009-04-07 | United States Gypsum Company | Embedment roll device |
| US7989370B2 (en) * | 2003-10-17 | 2011-08-02 | Georgia-Pacific Gypsum Llc | Interior wallboard and method of making same |
| US20050108965A1 (en) * | 2003-11-26 | 2005-05-26 | Morse Rick J. | Clapboard siding panel with built in fastener support |
| US7786026B2 (en) | 2003-12-19 | 2010-08-31 | Saint-Gobain Technical Fabrics America, Inc. | Enhanced thickness fabric and method of making same |
| US7625827B2 (en) | 2003-12-19 | 2009-12-01 | Basf Construction Chemicals, Llc | Exterior finishing system and building wall containing a corrosion-resistant enhanced thickness fabric and method of constructing same |
| US7745357B2 (en) | 2004-03-12 | 2010-06-29 | Georgia-Pacific Gypsum Llc | Use of pre-coated mat for preparing gypsum board |
| BRPI0509371A (pt) | 2004-03-30 | 2007-09-11 | Coveright Surfaces Holding Gmb | composição de revestimento, artigo revestido e um método para fabricar os mesmos |
| US20060068188A1 (en) * | 2004-09-30 | 2006-03-30 | Morse Rick J | Foam backed fiber cement |
| US7635657B2 (en) * | 2005-04-25 | 2009-12-22 | Georgia-Pacific Gypsum Llc | Interior wallboard and method of making same |
| US7731794B2 (en) | 2005-06-09 | 2010-06-08 | United States Gypsum Company | High starch light weight gypsum wallboard |
| US7736720B2 (en) | 2005-06-09 | 2010-06-15 | United States Gypsum Company | Composite light weight gypsum wallboard |
| US11306028B2 (en) | 2005-06-09 | 2022-04-19 | United States Gypsum Company | Light weight gypsum board |
| US9840066B2 (en) | 2005-06-09 | 2017-12-12 | United States Gypsum Company | Light weight gypsum board |
| US9802866B2 (en) | 2005-06-09 | 2017-10-31 | United States Gypsum Company | Light weight gypsum board |
| US11338548B2 (en) | 2005-06-09 | 2022-05-24 | United States Gypsum Company | Light weight gypsum board |
| USRE44070E1 (en) | 2005-06-09 | 2013-03-12 | United States Gypsum Company | Composite light weight gypsum wallboard |
| WO2007055074A1 (ja) | 2005-11-09 | 2007-05-18 | Yoshino Gypsum Co., Ltd. | 建材用組成物、及び石膏板並びにそれらを使用した工法及び壁等 |
| US20070122604A1 (en) * | 2005-11-28 | 2007-05-31 | Lance Wang | Gypsum board and process of manufacture |
| US7897079B2 (en) | 2006-09-21 | 2011-03-01 | United States Gypsum Company | Method and apparatus for scrim embedment into wet processed panels |
| US7475599B2 (en) * | 2006-11-01 | 2009-01-13 | United States Gypsum Company | Wet slurry thickness gauge and method for use of same |
| US20080152945A1 (en) * | 2006-12-20 | 2008-06-26 | David Paul Miller | Fiber reinforced gypsum panel |
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-
1980
- 1980-05-23 AU AU58728/80A patent/AU531527B2/en not_active Expired
- 1980-05-23 IE IE1082/80A patent/IE49483B1/en not_active IP Right Cessation
- 1980-05-24 DE DE19803019917 patent/DE3019917C2/de not_active Expired - Lifetime
- 1980-05-28 GB GB8017432A patent/GB2053779B/en not_active Expired
- 1980-05-28 ES ES491922A patent/ES8102493A1/es not_active Expired
- 1980-05-28 NZ NZ19379280A patent/NZ193792A/xx unknown
- 1980-05-28 GR GR62061A patent/GR68472B/el unknown
- 1980-05-28 DK DK231180A patent/DK152687C/da active
- 1980-05-29 CA CA000353010A patent/CA1148458A/en not_active Expired
- 1980-05-29 JP JP7211880A patent/JPS55162487A/ja active Granted
- 1980-05-29 PL PL1980224587A patent/PL126492B1/pl unknown
- 1980-05-29 BE BE0/200800A patent/BE883527A/fr not_active IP Right Cessation
- 1980-05-29 CH CH419080A patent/CH637320A5/fr not_active IP Right Cessation
- 1980-05-29 NL NL8003121A patent/NL8003121A/nl active Search and Examination
- 1980-05-29 SE SE8004007A patent/SE441610B/sv not_active IP Right Cessation
- 1980-05-29 NO NO801602A patent/NO151352C/no unknown
- 1980-05-29 ZA ZA00803205A patent/ZA803205B/xx unknown
- 1980-05-30 FR FR8012160A patent/FR2457754A1/fr active Granted
- 1980-05-30 LU LU82494A patent/LU82494A1/fr unknown
- 1980-05-30 UA UA2978852A patent/UA6319A1/uk unknown
- 1980-05-30 AT AT289380A patent/AT385233B/de not_active IP Right Cessation
- 1980-05-30 IT IT2245480A patent/IT1131220B/it active
- 1980-05-30 FI FI801765A patent/FI72289C/sv not_active IP Right Cessation
- 1980-05-30 SU SU802928852A patent/SU1706381A3/ru active
-
1981
- 1981-09-17 US US06/303,317 patent/US4378405A/en not_active Expired - Lifetime
-
1987
- 1987-12-01 JP JP62304406A patent/JPS63172607A/ja active Granted
-
1994
- 1994-05-16 GE GEAP19941910A patent/GEP19981259B/en unknown
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| Date | Code | Title | Description |
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| MA | Patent expired |
Owner name: BPB INDUSTRIES LIMITED |