Abstract:
Organosilicon compounds are disclosed which are multi-functional and possess utility as chain branching agents for aminofunctional polysiloxanes used in the softening of textiles and fabrics. The organosilicon compounds possess epoxy functionality and may have further alkyl functionality and/or polyalkylene oxide functionality.
Abstract:
This invention discloses a fiber treatment agent characterized in that it comprises:(A) 100 parts by weight of an organopolysiloxane with no less than 2 hydroxyl groups and/or alkoxyl groups bonded to Si atoms per molecule,(B) 0.5-50 parts by weight of silica and/or a polysilsesquioxane,(C) 0.1-20 parts by weight of an organoalkoxysilane containing amide groups and carboxyl groups, and/or its partial hydrolysis condensate,(D) 0.1-20 parts by weight of an organoalkoxysilane containing amino groups or epoxy groups and/or its partial hydrolysis condensate, and(E) 0.01-10 parts by weight of a curing catalyst, and characterized in that it is also a cationic or non-ionic emulsion.
Abstract:
A novel silicone-based fabric finishing agent is proposed which is particularly suitable for finishing a fabric material containing keratinous fibers, e.g., wool, for imparting the fabric material with excellent shrink-proofness and soft and pleasant feeling of touch even after repeated laundering treatments. The fabric finishing agent is an aqueous emulsion of a hydroxy-containing organopolysiloxane with admixture of a mixture of colloidal silica and a reaction product of an amino-functional alkoxy silane or a hydrolysis product thereof with an acid anhydride, an epoxy-functional alkoxy silane compound and a curing catalyst.
Abstract:
Novel organopolysiloxanes are described in which the organopolysiloxanes are terminated by units of the formula R.sub.3 SiO.sub.1/2 and comprise units of the formulas RR.sup.1 SiO, RR.sup.2 SiO, RR.sup.3 SiO, RHSiO and R.sub.2 SiO, where R represents the same or different alkyl radicals having from 1 to 4 carbon atoms per radical, or phenyl radicals, R.sup.1 represents the same or different alkyl radicals having at least 6 carbon atoms per radical, R.sup.2 represents the same or different aralkyl radicals and R.sup.3 represents the same or different, SiC-bonded, monovalent organic radicals having at least one vicinal epoxy group per radical. These organopolysiloxanes are preferably prepared by reacting organopolysiloxanes which contain units of the formulas R.sub.3 SiO.sub.1/2 and RHSiO and optionally units of the formula R.sub.2 SiO, wherein R is the same as above, with an organic compound that has a terminal C.dbd.C-bond and at least one vicinal epoxy group per molecule, at least one alkene having at least 6 carbon atoms per molecule, and at least one aralkene in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to the aliphatic C.dbd.C bond. These organopolysiloxanes may be applied simultaneously with a polymer having perfluoroalkyl groups with at least 3 carbon atoms per alkyl group to fibers to render them oil and water repellent.
Abstract:
A process for coating a substrate which comprises applying to the substrate an aqueous emulsion containing:(1) A diorganopolysiloxane having terminal SiC-bonded vinyl groups;(2) An organopolysiloxane containing at least three Si-bonded hydrogen atoms per molecule;(3) A catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond; and if desired,(4) An agent which delays or retards the addition at room temperature; and(5) A thickening agent, which may be mixed with or added separately to the emulsion, and prior to cross-linking the organopolysiloxane, applying separately or together with one or more of the constituents (1) through (5);(6) A vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane in which the vinyl group is bonded to from 10 to 50 percent of the number of the silicon atoms of the diorganopolysiloxane units, and the other organic radicals are free of aliphatic multiple bonds;(7) An organosilicon adhesive compound; and(8) At least one aqueous dispersion of a polymer selected from the group consisting of ethylene, vinyl acetate, acrylic acid esters, and copolymers containing at least two of these monomers and thereafter crosslinking the coating.
Abstract:
A process for coating a substrate which comprises coating the substrate with a solution containing an organic solvent and(1) a diorganopolysiloxane having terminal SiC-bonded vinyl groups,(2) an organopolysiloxane having at least 3 Si-bonded hydrogen atoms per molecule,(3) a catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond; and optionally(4) an agent which delays or retards the addition of Si-bonded hydrogen to an aliphatic multiple bond at room temperature,(5) a diorganopolysiloxane having a viscosity of at least 10.sup.6 mPa.s at 25.degree. C. in which a vinyl group is bonded to a silicon atom in 0.033 to 3.33 percent of the diorganosiloxane units, while the other organic radicals in the diorganosiloxane units of the diorganopolysiloxane are free of aliphatic multiple bonds, and(6) an organosilicon adhesive compound.An acrylic acid ester polymer or copolymer (7) may be applied to the substrate simultaneously with or prior to the application of the solution containing components (1) through (6) above.
Abstract:
A process for the treatment of fibrous materials to improve their properties, in which the fibrous materials are treated with a composition containing:A component A selected from the class consisting of polyorganosiloxanes of the general formula ##EQU1## IN WHICH N HAS AN AVERAGE VALUE IN THE RANGE 1.8 TO 2.2, AND R represents organic radicals attached to the silicon atoms by carbon-silicon bonds; wherein between 1.0 and 50% of the radicals R consist of one or more organic radicals containing an epoxide group and selected from the class consisting of: 1,2-epoxyethyl; 3,4-epoxycyclohexyl; 6-methyl-3,4-epoxycyclohexyl; 3,4-epoxycyclohexyl-1-ethyl; 9,10-epoxystearyl; 3-(2,3-epoxypropoxy)propyl; p-(2,3-epoxybutyl)-phenyl; and 3-(3,4-epoxybutyl)cyclohexyl, and the remainder of the radicals R consist of one or more organic radicals selected from the class consisting of alkyl and aryl radicals;And a polyamine component B which consists of one or more organic compounds each with two or more primary and/or secondary amino groups attached to aliphatic carbon atoms such that there is at least 5 carbon atoms per amino group, or two or more groups capable of providing, by reaction, primary and/or secondary amino groups;And allowing the components A and B to react chemically.
Abstract:
STORAGE-STABLE AQUEOUS EMULSIONS CONTAINING LESS THAN 80% WATER CONTAIN A METHYLHYDROGENOPOLYSILOXANE/ METHYLPOLYSILOXANE MIXTURE, AN EMULSIFIER AND 1.5 TO 30%, BASED ON THE WEIGHT OF POLYSILOXANE, OF A CURABLE REACTION PRODUCT OF (A) AN AMINATED POLYMER HAVING REPEAT UNITS
-NR-(CNH2NNR)X-A-
WHERE R IS H OR C1-C4 ALKYL, N>2,X=1-7 AND A=-CO-, -CS-, -CO-Q- OR -CO-Q''-COWHERE Q=C2-C6 ALKYLENE AND Q''= A DIVALENT RADICAL; AND (B) A COMPOUND HAVING AT LEAST ONE HALOHYDRIN OR EPIHALOHYDRIN GROUP OR AT LEAST TWO ETHYLENE OXIDE GROUPS. DILUTION OF THE EMULSION AND ADDITION OF CONVENTION CATALYSTS GIVES A BATH SUITABLE FOR WATERPROOFING TEXTILES IN A MANNER RESISTANT TO REPEATED RUBBING AND WASHING.
Abstract:
A composition for the treatment of fiber, yarn and fabrics, said composition comprising at least one highly dispersible clay nanoparticle component, at least one silicone polymer component; and water. Also provided is fiber surface treated with these compositions as well as articles including yarns, fabrics and carpets of the surface treated fiber.