摘要:
Aqueous textile treating compositions containing both nitrogen-functional organopolysiloxanes and oligomeric polyisobutylene polymers are as effective as conventional textile treating compositions containing only nitrogen-functional organopolysiloxane, and have improved resistance to yellowing, improved washfastness, and are more cost effective. Stable concentrates containing amino-functional organopolysiloxane, polyisobutylene, and a blend-stabilizing surfactant may be used to form aqueous emulsion and microemulsion fabric softener compositions.
摘要:
Detergent resistant compositions comprising an aqueous emulsion of hydrocarbonoxy end-blocked branched organopolysiloxanes containing from 10 to 99 mol percent of R.sub.2 SiO units and from 90 to 1 mol percent of R.sub.3 SiO.sub.3/2 units and/or SiO.sub.4/2 units, where R is a monovalent hydrocarbon radical. Other silicone fluids such as aminofunctional, silicone fluids, organoalkoxysilanes, silicone resins, organopolysiloxane fluids and silicone gums as well as abrasive materials, surfactants and organic solvents may be incorporated in the aqueous emulsions.
摘要:
Organopolysiloxane fluids are stabilized against degradation in the presence of kaolin clays at elevated temperatures by adding an amine containing compound to the organopolysiloxane fluids.
摘要:
Compositions which either reduce or prevent foam formation in aqueous or nonaqueous systems comprising (A) a foam destabilizing agent containing (1) a diorganopolysiloxane having the average formula ##STR1## where R is a monovalent hydrocarbon radical having from 1 to 50 carbon atoms, in which an average of at least one R group contains from 6 to 50 carbon atoms, a has an average value of from about 1.8 to 2.2, and m has an average value greater than 3, and (2) an amine containing compound selected from an aminofunctional organopolysiloxane and/or an organic amine having the formula ##STR2## where R.sup.1 is a monovalent hydrocarbon radical having from 1 to 25 carbon atoms, R.sup.2 is a divalent hydrocarbon radical having from 1 to 10 carbon atoms, with the proviso that at least one of the radicals represented by R.sup.1 or R.sup.2 must have at least 6 carbon atoms, b is 0, 1 or 2, c is 0 or 1, (B) a nonaqueous dispersing agent, (C) an inorganic filler and (D) water, if desired.
摘要:
Quaternary ammonium-functional silicon compounds are prepared by reacting carboxylic acid-functional quaternary ammonium compounds with carbinol-functional silicon compounds. These quaternary ammonium-functional silicon compounds may be applied to textile materials to impart antistatic properties thereto.
摘要:
The invention relates to a process for preparing thiofunctional polysiloxane polymers which comprises equilibrating in the presence of an acid catalyst a mixutre containing (1) an organopolysiloxane having at least four silicon atoms per molecule and (2) a thiofunctional polysiloxane copolymer having at least one unit of the formula ##EQU1## and the other units are selected from the formulas R.sub.2 SiO, R.sub.3 SiO.sub.0.5, and RO.sub.0.5, wherein R is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, R' is a substituted or unsubstituted divalent, trivalent or tetravalent hydrocarbon radical free of aliphatic unsaturation having from 1 to 18 carbon atoms, hydrocarbon ether, hydrocarbon thioether, hydrocarbon ester and hydrocarbon thioester radicals, R" is a monovalent hydrocarbon radical or hydrogen, f is a number of from 1 to 3, g is a number of from 0 to 1 and the sum of f+g is from 1 to 3 and y is a number of from 1 to 3.
摘要:
Silicone mold release compositions which are a stable blend of hydrophobic-modified organopolysiloxane and an aminoorgano- or mercaptoorgano-functional organopolysiloxane, or a solution in organic solvent of a stable or unstable blend, provide exceptional mold release properties while retaining paintability of molded parts.
摘要:
Star- and comb-type branched organosilicon compounds containing .omega.-terminated organopolysiloxane branches are readily synthesized by the catalyzed or uncatalyzed reaction of an at least tris(organyloxy)-functional organosilicon compound with a predetermined amount of substantially linear minimally disilanol-functional organopolysiloxane. Well defined, non-resinous, liquid products of low viscosity may be obtained.
摘要:
Alkali metal terminated organic polymers are reacted with silicon containing compounds having aliphatic unsaturation to produce a new class of reactive silylated organic polymers. These silylated organic polymers can in turn be reacted with cyclic siloxanes to produce silylated organic-organopolysiloxane block copolymers which are useful as protective coatings, surfactants and as elastomers.
摘要:
Alkali metal terminated organic polymers are reacted with silicon containing compounds having aliphatic unsaturation to produce a new class of reactive silylated organic polymers. These silyated organic polymers can be in turn reacted with cyclic siloxanes to produce silylated organic-organopolysiloxane block copolymers which are useful as protective coatings, surfactants and as elastomers.