ClassID:

88279

C04B11/032 - CPC Classification

Classification description:

Calcium sulfate cements dehydrating gypsum; Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate

Recent Application in this class:
#1
20200123055
2020-04-23

Recycling method of dihydrate gypsum from waste gypsum boards

#2
20190322584
2019-10-24

Accelerator comprising starch, and related board, slurries, and methods

#3
20140377162
2014-12-25

Method of forming a gypsum based product

#4
20140083048
2014-03-27

Mineral composite panel and its production process

#5
20110300032
2011-12-08

System and method for the production of gypsum using heat recovery

#6
20110203487
2011-08-25

Powder to hydrophobise and its use

#7
20100166640
2010-07-01

Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate

#8
20090308284
2009-12-17

System and method for the production of alpha type gypsum using heat recovery

#9
20090263673
2009-10-22

Coated building panels and articles containing calcium sulfate hemihydrate

#10
20090257946
2009-10-15

Method and apparatus for pressurized calcination of gypsum

#11
20090208392
2009-08-20

PROCESS FOR PRODUCING ALPHA-HEMIHYDRATE GYPSUM

#12
20090159173
2009-06-25

Low fiber calcination process for making gypsum fiberboard

#13
20080229981
2008-09-25

Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same

#14
20080148996
2008-06-26

Alpha-type calcium sulfate hemihydrate compositions

#15
20080069762
2008-03-20

Process for manufacturing ultra low consistency alpha- and beta- blend stucco

#16
20070172413
2007-07-26

System and method for the production of alpha type gypsum using heat recovery

#17
20070056478
2007-03-15

Fiberboard with improved water resistance

#18
20050188898
2005-09-01

Alpha-type calcium sulfate hemihydrate compositions and methods of making same

#19
15625343
2018-07-17

No fiber calcination of gypsum for gypsum fiberboard