Patent GB-975122-A (GB)
Title: Improved siliceous materials
IPC: C08G77/00
Filed: 1962-08-21
Abstract: Siliceous material, e.g. glass, mica, quartz, clay, asbestos and silicates of Al, Ca-Al, Mg and Zr, in the form of sheets, plates, ribbons, flakes, fibres or powders, is coated with an organosilicon polymer of the unit general formula <FORM:0975122/C1/1> or of the unit general formula <FORM:0975122/C1/2> in which D is a <FORM:0975122/C1/3> , phenyl or CH3.CH = CH- radical, X is H, a hydrocarbon radical of less than 7 C atoms or a radical of the general formula -R1a-R-SiO1.5, R11 is H, CH3 or <FORM:0975122/C1/4> , R1 is an aliphatic radical composed of C, H and O, the latter being in the form of ether linkages or -OH groups, the ratio of C to O in R1 being not greater than 3: 1, R is an alkylene radical of 1 to 4 C atoms, and a is 0 or 1. These polymers are described and claimed in Specification 960,534 [Division C3].  The polymer can be applied as such to surface of the siliceous material either in the form of an emulsion or a solution in an organic solvent or as a solution in an organic solvent or as a solution of the corresponding silanols in water; alternatively the polymer can be formed in situ on the surface of the siliceous material by treating the latter with the corresponding hydrolysable silanes, in liquid or vapour form, hydrolysis being effected by water or hydroxyl groups on the surface of the siliceous material.ALSO:The organosilicon polymers of Specification 960,534 are used for coating siliceous material in any form (see Divisions B2, C1 and D1), and the resulting material is then used with vinylic or epoxy resins for making moulded articles.ALSO:Siliceous material, e.g. glass, mica, quartz, clay, asbestos and silicates of Al, Ca-Al, Mg and Zn, in the form of sheets, plates, ribbons, flakes, fibres or powders, is coated with an organosilicon polymer of the unit general formula <FORM:0975122/B1-B2/1> or of the unit general formula <FORM:0975122/B1-B2/2> , in which D is a <FORM:0975122/B1-B2/3> phenyl or CH3.CH=CH- radical, X is H, a hydrocarbon radical of less than 7 C atoms, or a radical of the general formula -R1a-R-SiO1,5, R11 is H, CH3- or <FORM:0975122/B1-B2/4> , R1 is an aliphatic radical composed of C, H and O, the latter being in the form of ether linkages or -OH groups, the ratio of C to O in R1 being not greater than 3 : 1, R is an alkylene radical of 1 to 4 C atoms, and a is 0 or 1.  These polymers are described and claimed in Specification 960,534 [Division C3].  The polymer can be applied as such to the surface of the siliceous material either in the form of an emulsion or a solution in an organic solvent or as a solution of the corresponding silanols in water; alternatively the polymer can be formed in situ by treating the siliceous material with the corresponding hydrolysable silanes, in liquid or vapour form, hydrolysis being effected by water or hydroxyl groups on the surface of the siliceous material.  U.S.A. Specification 2,952,560 also is referred to.ALSO:Inorganic fibres, e.g. glass and quartz fibres, are coated with an organosilicon polymer of the unit general formula <FORM:0975122/D1-D2/1> or of the unit general formula <FORM:0975122/D1-D2/2> in which D is a <FORM:0975122/D1-D2/3> , phenyl or CH3. CH=CH-radical, X is H, a hydrocarbon radical of less than 7 C atoms, or a radical of the formula -R1a-R-SiO1,5,R11 is H, <FORM:0975122/D1-D2/4> R1 is an aliphatic radical composed of C, H and O, the latter being in the form of ether linkages or -OH groups, the ratio of C to O in R1 being not greater than 3 : 1, R is an alkylene radical of 1 to 4 C atoms, and a is 0 or 1.  These polymers are described and claimed in Specification 960,534 [Division C3].  The polymer can be applied as such in the form of an emulsion or a solution in an organic solvent or as a solution of the corresponding silanols in water; alternatively the polymer can be formed in situ by treating the fibres with the corresponding hydrolysable silanes, in liquid or vapour form, hydrolysis being effected by water or hydroxyl groups on the surfaces of the fibres.  Various sizing materials, numerous examples of which are given, can also be applied to the fibres either simultaneous with or subsequently to the above treatment.