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Browse by Category: Main > Tools & Hardware
Class Information
Number: 156/44
Name: Adhesive bonding and miscellaneous chemical manufacture > Methods > Plaster board making > With preliminary treatment of facing sheet
Description: Processes in which at least one of the facing sheets is subjected to a mechanical and/or chemical modification prior to the association of the various layers.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8685188 Apparatus and method for fractionating gypsum slurry and method of producing gypsum board Apr. 1, 2014
8592040 Polymer emulsion coating or binding formulations and methods of making and using same Nov. 26, 2013
8530064 Mold-inhibiting method and composition comprising dehydroacetic acid or salt thereof Sep. 10, 2013
8413333 Method for making an asymmetrical concrete backerboard Apr. 9, 2013
8356988 System and method for making wallboard Jan. 22, 2013
8262826 Insulation wrap Sep. 11, 2012
8123991 System and method for making wallboard Feb. 28, 2012
7846553 Gypsum board coating, gypsum board and cardboard-coated gypsum board production method Dec. 7, 2010
7846278 Methods of making smooth reinforced cementitious boards Dec. 7, 2010
RE41592 Method of producing gypsum/fiber board Aug. 31, 2010
7776170 Fire-resistant gypsum panel Aug. 17, 2010
7718133 Multilayer processing devices and methods May. 18, 2010
7686902 Method of fabricating plaster board Mar. 30, 2010
7579136 Microfluidic device and method of manufacturing the same Aug. 25, 2009
7470338 Process for forming dense layers in a gypsum slurry Dec. 30, 2008
7431783 Method and apparatus for production of plaster plates having 4 tapered edges Oct. 7, 2008
7220329 Method for applying reference markings to wallboard during manufacture May. 22, 2007
6773822 Antifungal gypsum board Aug. 10, 2004
6767647 Antimicrobial wallboard Jul. 27, 2004
6680127 Antifungal gypsum board Jan. 20, 2004
6632550 Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it Oct. 14, 2003
6547901 Reinforced plasterboard Apr. 15, 2003
6508895 Method of producing gypsum/fiber board Jan. 21, 2003
6488792 Method and apparatus for manufacturing cementitious panel with reinforced longitudinal edge Dec. 3, 2002
6475313 Process for making gypsum board having improved through-penetration strength Nov. 5, 2002
6391131 Method of making glass fiber facing sheet May. 21, 2002
6342284 Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it Jan. 29, 2002
6190476 Gypsum board manufacture with co-rotating spreader roller Feb. 20, 2001
6153040 Gypsum board paper that reduces roll up during lamination, and board comprising such paper Nov. 28, 2000
5962119 Gypsum wallboard and process of making same Oct. 5, 1999
5879486 Methods of manufacturing gypsum board and board made therefrom Mar. 9, 1999
5718797 Apparatus for manufacturing gypsum board Feb. 17, 1998
5718785 Glass mat with reinforcing binder Feb. 17, 1998
5531946 Process for the production of staff panels according to a semidry method and installation for implementing the process Jul. 2, 1996
5510198 Re-usable cement forms Apr. 23, 1996
5368663 Process for producing plate-shaped bodies made of a mixture of plaster and fibrous materials and installation for implementing Nov. 29, 1994
5264057 Process for the production of a flame resistant to nonflammable composite panel and apparatus for carrying out the process Nov. 23, 1993
5202174 Lay-in ceiling panel Apr. 13, 1993
5151130 Amine-based consistency reducers for gypsum stucco slurries Sep. 29, 1992
5076978 Method of producing gypsum decorative molding Dec. 31, 1991
4994113 Mixture for the preparation of building materials Feb. 19, 1991
4816091 Method and apparatus for producing reinforced cementious panel webs Mar. 28, 1989
4631097 Embossed gypsum board Dec. 23, 1986
4579610 Method of making predecorated gypsum board Apr. 1, 1986
4557799 Tomato consistency control apparatus Dec. 10, 1985
RE32037 Methods for manufacturing cementitious reinforced panels Nov. 26, 1985
4544424 Gypsum board manufacturing method Oct. 1, 1985
4477300 Cementitious board manufacture Oct. 16, 1984
4447498 Use of organopolysiloxanes in the manufacture of paper-coated plaster boards May. 8, 1984
4406738 Use of an organopolysiloxane preparation for the treatment of paper for the production of plaster boards Sep. 27, 1983

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