Abstract:
A surface modifier comprising an organosilicone compound represented by General Formula (A) and/or General Formula(B): F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r Si(X') 3-a (R 1 ) a (A) and F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r (X') 2-a (R 1 ) a SiO(F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r (X') 1-a (R 1 ) a SiO) z F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r (X') 2-a (R 1 ) a Si (B) wherein q is an integer from 1 to 3; m, n, and o are independently integers from 0 to 200; p is 1 or 2; X is O or a bivalent organic group; r is an integer from 2 to 20; R 1 is a C 1-22 linear or branched hydrocarbon group; a is an integer from 0 to 2; X' is hydrolysable group; and z is an integer from 0 to 10 when a is 0 or 1.
Abstract:
A surface modifier comprising an organosilicone compound represented by General Formula (A) and/or General Formula(B): F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r Si(X') 3-a (R 1 ) a (A) and F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r (X') 2-a (R 1 ) a SiO(F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r (X') 1-a (R 1 ) a SiO) z F-(CF 2 ) q -(OC 3 F 6 ) m -(OC 2 F 4 ) n -(OCF 2 ) o (CH 2 ) p X(CH 2 ) r (X') 2-a (R 1 ) a Si (B) wherein q is an integer from 1 to 3; m, n, and o are independently integers from 0 to 200; p is 1 or 2; X is O or a bivalent organic group; r is an integer from 2 to 20; R 1 is a C 1-22 linear or branched hydrocarbon group; a is an integer from 0 to 2; X' is hydrolysable group; and z is an integer from 0 to 10 when a is 0 or 1.
Abstract:
Water-dispersible aqueous compositions comprise at least one solvated alkali-metal C 1 -C 4 hydrocarbyl siliconate and at least one solvated organosilicon component derived from an organosilicon compound. In example compositions, the organosilicon compound may comprise at least one silane, at least one phenylsilsesquioxane resin, or a mixture of at least one silane and at least one phenylsilsesquioxane resin. The organosilicon compound may comprise at least one hydrophobic group such as a phenyl group, an organic group with a carbon chain having more than three carbon atoms, or at least one fluoroalkyl group. Methods for forming the water-dispersible compositions comprise solvating the organosilicon compound in an aqueous solution containing at least one alkali-metal C 1 -C 4 hydrocarbyl siliconate. Further methods are disclosed for treating surfaces of substrates such as brick, masonry, concrete, and wood with the aqueous compositions to render the substrate surfaces hydrophobic and resistant to water and optionally oleophobic and resistant to oil.
Abstract:
A surface treatment composition comprising (i) an organosilicon compound having an alkoxysilane functional group at the end of a fluorocontaining polyether chain and (ii) fluorocontaining polyether compound s, wherein a content of the fluorocontaining polyether compounds in the surface treatment composition is less than 25 mol% based on the surface treatment composition.
Abstract:
A surface treatment composition comprising (i) an organosilicon compound having an alkoxysilane functional group at the end of a fluorocontaining polyether chain and (ii) fluorocontaining polyether compound s, wherein a content of the fluorocontaining polyether compounds in the surface treatment composition is less than 25 mol% based on the surface treatment composition.
Abstract:
A method for enhancing the dielectric properties of new or in-service electrical cable is disclosed, the method comprising supplying the interstitial void space of the cable's conductor with a water-reactive antitreeing agent having a diffusion coefficient of at least 1 x 100 -7 cm2/second at 50ÀC. in the insulation of the cable end having an initial viscosity of .ltoreq. 100 cP (mPa~s) at 25ÀC. The instant method provides a more symmetrical distribution of dielectric enhancing fluid in the insulation than prior art approaches and results in a significant reduction in cable treatment time.
Abstract:
A surface treatment composition comprising (i) an organosilicon compound having an akloxysilane functional group at the end of a fluorocontaining polyether chain and (ii) fluorocontaining polyether compounds, wherein a content of the fluorocontaining polyether compounds in the surface treatment composition is less than 25 mol% based on the surface treatment composition.
Abstract:
A surface treated powder treated with a fluorine-modified aminosilane prepared by reacting (a) an epoxy-modified fluorocompound of the formula: (I) wherein Rf is a fluoroalkyl group having 1 to 6 carbon atoms wherein at least one fluorine atom is optionally substituted by a hydrogen atom or a halogen atom, and R 1 is a bivalent organic group, with (b) an amino group-containing silane compound of the formula: NHR 2 -X-[NH-X] a -Si(Y) 3 (II) wherein R 2 is a hydrogen atom or a monovalent organic group, X each is, the same or different, a bivalent organic group, Y each is, the same or different, a monovalent organic group or a hydrolyzable group, wherein at least one Y is a hydrolyzable group, and a is from 0 to 10.
Abstract:
Disclosed in a mold release composition comprising a fluorosilicone compound of the formula (I): (I) wherein R1, R2, R4, R5, R6, R7, R8 and R9 each is, the same or different, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, R3 and R10 each is; the same or different, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or Rf-X-, or Z-Y- in which X and Y each is; the same or different, a divalent organic group, Rf is a C1-6 fluoroalkyl group, Z is a silyl group containing a hydrolyzable site, m is 1-100, n is 1-50, and o is 0-200. The mold release composition can give excellent mold releasability and durability of mold releasability (repeated mold releasability).
Abstract:
A surface treatment composition comprises a polyfluoropolyether silane. The polyfluoropolyether silane and the surface treatment composition are produced by reacting a perfluoropolyether-containing compound and a hydrosilane in the presence of a hydrosilylation catalyst and an isomer reducing agent.