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US 8,524,373 B2Granted
Gypsum plasterboard with a coating slip and method of manufacturing
AssigneeLafarge Platres
InventorGoran Erik Hedman
Life of this patent
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Abstract
A gypsum plasterboard with a covering paper forming the outside of the plasterboard and a coating slip deposited on the covering paper. The coating slip has plastic pigments as whitening agent.
Claims21
A plasterboard, comprising:
- at least one facing paper forming the exterior of the plasterboard;
- and, a coating slip deposited on the facing paper, the coating slip comprising
- a) at least 25% of at least one filler;
- b) a sufficient quantity of water;
- c) a dispersing agent;
- d) a defoamer;
- e) at least 8% of at least one binder;
- f) an insolubilising agent
- g) a biocide;
- and
- h) plastic pigments as whitening agents.
8 more elements
A coating slip designed to be coated on the upper layer of a facing paper of a plasterboard, the coating slip comprising:
- a) at least 25% of at least one filler;
- b) a sufficient quantity of water;
- c) a dispersing agent;
- d) a defoamer;
- e) at least 8% of at least one binder;
- f) an insolubilising agent;
- and
- g) a biocide;
- and,
- h) plastic pigments as whitening agents.
7 more elements
Dependencies are inferred from the claim text.