Title:
The lightweight gypsum product which has high water resistance
Document Type and Number:
Japanese Patent JP6179782
Kind Code:
B2
Abstract:
The product is produced from a settable aqueous calcium sulphate dispersion which has a water to solids ratio of less than 0.4 to 1, and has distributed therethrough lightweight hollow bodies having water-impervious surfaces (such as expanded polystyrene beads). The dispersion contains a hydratable cement (such as calcium sulpho aluminate) which is capable of hydration in the presence of the calcium sulphate dispersion. The hydratable cement is such that it reacts with excess water in the dispersion thereby enhancing the water resistance of the resulting product.
Inventors:
Robin, Daniel Fisher
Application Number:
JP2015209256A
Publication Date:
August 16, 2017
Filing Date:
October 23, 2015
Export Citation:
Assignee:
BP Limited
International Classes:
C04B28/14; C04B14/42; C04B16/08; C04B22/14; C04B24/08; C04B24/40
Domestic Patent References:
| JP50027822A | ||||
| JP48103620A | ||||
| JP5201757A | ||||
| JP2008526665A | ||||
| JP56054263A |
Foreign References:
| DD125405A1 | ||||
| WO2008100777A2 |
Attorney, Agent or Firm:
▲吉▼川 俊雄
Previous Patent: The container especially for foodstuffs
Next Patent: POLYPROPYLENE STRETCH-WRAP FILM FOR FOOD PACKAGING
Next Patent: POLYPROPYLENE STRETCH-WRAP FILM FOR FOOD PACKAGING