Cement compositions
AssigneeImperial Chemical Industries PLC
InventorJohn H. Alexander
Life of this patent
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Abstract
Non-foaming cement compositions comprising a hydraulic cement, a low density filler, water, an organic polyisocyanate and an isocyanate-reactive organic compound, the said composition, containing by weight, 10 to 10,000 parts of filler, 10 to 75 parts of water and 11 to 5,000 parts of an organic polyisocyanate and isocyanate-reactive organic compound taken together per 100 parts of hydraulic cement, the polyisocyanate being used in excess with respect to the isocyanate-reactive compound for reaction with the water and the total amount polyisocyanate and isocyanate-reactive organic compound being greater than the amount of water present. These compositions set rapidly and provide strong, durable flooring surfaces.
Claims5
A cement composition comprising:
- (a) 100 parts by weight of a hydraulic cement;
- (b) 10 to 10,000 parts by weight of a low density filler selected from the group consisting of urea/formaldehyde polymers, polyamide and polyester and wood cellulose;
- (c) 10 to 75 parts by weight of water;
- and
- (d) up to 5,000 parts by weight of an organic polyisocyanate and isocyanate-reactive organic compound taken together, the polyisocyanate being used in excess with respect to the isocyanate reactive compound for reaction with the water and the total amount of polyisocyanate and isocyanate-reactive organic compound being greater than the amount of water present.
A flooring surface including the set composition comprising:
- (a) 100 parts by weight of a hydraulic cement;
- (b) 10 to 10,000 parts by weight of low density filler selected from the group consisting of urea/formaldehyde polymers, polyamide, polyester and wood cellulose;
- (c) 10 to 75 parts by weight of water;
- and
- (d) up to 5,000 parts by weight of an organic polyisocyanate and isocyanate-reactive organic compound taken together, the polyisocyanate being used in excess with respect to the isocyanate reactive compound for reaction with the water and the total amount of polyisocyanate and isocyanate-reactive organic compound being greater than the amount of water present.
Dependencies are inferred from the claim text.