Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1983-12-30
1985-07-09
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156 42, 156288, 1563066, 264324, 428284, 428289, 428446, 428703, B32B 1302, B32B 1314
Patent
active
045282382
ABSTRACT:
A process for the production of a moldable fibre-containing cementitious composition in which at least one mat of a water-insoluble fibrous material is contacted with at least one surface of a shaped article of a moldable cementitious composition, the cementitious composition comprising a homogeneous mixture of at least one hydraulic cement, water in a proportion of not more than 25% by weight of the hydraulic cement in the composition, and at least one water-soluble or water-dispersible polymeric material in a proportion of at least 1% by weight of the hydraulic cement in the composition.
The moldable cementitious composition may be in the form of a sheet and in the process two or more sheets may be used with a fibrous mat being sandwiched between adjacent pairs of sheets of cementitious composition.
Also a moldable fibre-containing cementitious composition and fibre-reinforced cement product produced by curing of the composition.
REFERENCES:
patent: 4159361 (1979-06-01), Schupack
patent: 4312904 (1982-06-01), Meyer
patent: 4344804 (1982-08-01), Bijen et al.
patent: 4344910 (1982-08-01), Bijen et al.
patent: 4353748 (1982-10-01), Birchall et al.
patent: 4378401 (1983-03-01), Wright
patent: 4410366 (1983-10-01), Birchall et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 5, pp. 163-193, Interscience 1972.
Encyclopedia of Chemical Technology, by Raymond E. Kirk, vol. 2, pp. 142-150, published 1948.
Imperial Chemical Industries plc
Van Balen William J.
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