摘要:
Disclosed is a method for preventing multiplication of algae which is characterized by coating the surfaces of solid materials with a silicone emulsion composition prepared by emulsion polymerization of:(1) 0.1 to 60% by weight of a reaction product prepared by reacting(A) 50 to 99.9% by weight of a polydiorganosilozane having more than one silanol group on the average in each molecule and having a viscosity of 5 to 10,000 cSt at 25.degree. C. with(B) 0.1 to 50% by weight of a product prepared by reacting (a) 1 mol of a compound represented by the formula: ##STR1## wherein Q.sup.1 is a monovalent group selected from the group consisting of a hydrogen atom, --CH.sub.3, --CH.sub.2 CH.sub.2 NH.sub.2 and --CH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2, R.sup.1 is a divalent hydrocarbon group having 1 to 4 carbon atoms, R.sup.2 and R.sup.3 are monovalent hydrocarbon groups each having 1 to 4 carbon atoms, and a is an integer of 0 or 1,with (b) 0.5 to 3.0 mol of a compound represented by the formula: ##STR2## wherein Q.sup.2 is an epoxy group-containing group selected from a glycidoxy group and an epoxycyclohexyl group, R.sup.4 is a divalent hydrocarbon group having 2 to 4 carbon atoms, R.sup.5 and R.sup.6 are monovalent hydrocarbon groups each having 1 to 4 carbon atoms, and b is an integer of 0 or 1, and (2) 1 to 50% by weight of a compound represented by the formula: ##STR3## wherein R.sup.7 and R.sup.8 are same or different substituted or unsubstituted hydrocarbon groups each having 1 to 50 carbon atoms, and n is an integer of 3 or more, in the presence of(3) 0.1 to 20% by weight of a quaternary ammonium salt surface active agent and(4) 20 to 90% by weight of water.
摘要:
A polyorganosiloxane series thermoplastic resin comprising a graft copolymer obtained from a vinyl monomer and a modified polyorganosiloxane, and a thermoplastic resin composition containing the same. The resin and the composition thereof have excellent slidability, abrasion resistance, weather resistance, cold resistance and impact resistance, and can be applied to new fields such as sliding parts, parts for cold district, outdoor parts, etc.
摘要:
A polyorganosiloxane series thermoplastic resin comprising a graft copolymer obtained from a vinyl monomer and a modified polyorganosiloxane, and a thermoplastic resin composition containing the same. The resin and the composition thereof have excellent slidability, abrasion resistance, weather resistance, cold resistance and impact resistance, and can be applied to new fields such as sliding parts, parts for cold district, outdoor parts, etc.
摘要:
A composition for concealing grazes or scratches on glass surfaces comprising an emulsion of composition (A) and composition (B), said composition (A) comprising the emulsion-polymerization product of:(1) 0.1-60 weight percent of (A) of the reaction product of:(a) 0.1-50 weight percent of (a) and (b) of the product obtained by reacting:(i) 1 mole of a compound of the formula Q.sup.1 NHR.sup.1 SiR.sub.a.sup.2 (OR).sub.3-a with(ii) 0.5-3.0 moles of a compound of the formula Q.sup.2 R.sup.4 SiR.sub.a.sup.2 (OR).sup.6).sub.3-b ;(b) 50-99.9 weight percent of (a) and (b) of a polydiorganosiloxane having at least one silanol group and a viscosity at 25.degree. C. of 5-10,000 cSt;(2) 1-50 weight percent of (A) of a compound of the formula (R.sup.7 R.sup.8 SiO).sub.n ;(3) 0.1-20 weight percent of (A) of a cationic surfactant or mixture of cationic and nonionic surfactants;(4) 20-90 weight percent of (A) of water; and(5) an effective amount of alkali metal hydroxide having catalytic ability; andsaid composition (B) being obtained by emulsifying in water a polydiorganosiloxane having a viscosity at 25.degree. C. of 10-100,000 cSt in the presence of a cationic or nonionic surfactant or mixture thereof.
摘要:
A cleaning composition comprising at least one low molecular weight polyorganosiloxane selected from the group consisting of straight chain polydiorganosiloxane represented by a general formula: ##STR1## (wherein R.sup.1 is an organic group of single valence substituted by the same or different group or unsubstituted, and l is an integer from 0 to 5), and cyclic polydiorganosiloxane represented by a general formula: ##STR2## (wherein R.sup.1 is an organic group of single valence substituted by the same or different group or unsubstituted, and m is an integer from 3 to 7). To use it as a water system cleaning agent, polyoxyalkylene group containing polyorganosiloxane, a surfactant, and water are additionally mixed. Accordingly, a cleaning effect free from environmental destruction and contamination, equivalent to flon containing cleaning agents, and satisfactorily stable in terms of dispersion as a water system cleaning agent can be obtained. In addition, to use as a dewatering cleaning agent, the low molecular weight polyorganosiloxane is additionally mixed alone or with a surfactant and/or a hydrophilic solvent. Accordingly, cleaning and water substituting properties equivalent to flon containing dewatering cleaning agents and environmental safety can be obtained.
摘要:
A method for drying parts that includes contacting the part with a liquid removing composition that contains a straight chain or cyclic polyorganosiloxane.
摘要:
A method for removing liquid from parts that includes contacting the part with a cleaning or rinsing composition that contains a straight chain or cyclic polyorganosiloxane.
摘要:
An abrasion-concealing agent for glass containers, which comprises (A) a polyorganosiloxane and (B) a volatile polydimethylsiloxane, a glass container in which abrasions on the surface thereof have been concealed by the abrasion-concealing agent, and a method for concealing abrasions on a glass container by using the abrasion-concealing agent. The abrasion-concealing agent has excellent abrasion-concealing properites, film strength, water resistance, safety, workability and resistance to an aqueous alkaline solution washing, and does not cause any damage to labels on glass containers in the coating process.
摘要:
A cleaning composition comprising at least one low molecular weight polyorganosiloxane selected from the group consisting of straight chain polydiorganosiloxane represented by a general formula: ##STR1## (wherein R.sup.1 is an organic group of single valence substituted by the same or different group or unsubstituted, and l is an integer from 0 to 5), and cyclic polydiorganosiloxane represented by a general formula: ##STR2## (wherein R.sup.1 is an organic group of single valence substituted by the same or different group or unsubstituted, and m is an integer from 3 to 7). To use it as a water system cleaning agent, polyoxyalkylene group containing polyorganosiloxane, a surfactant, and water are additionally mixed. Accordingly, a cleaning effect free from environmental destruction and contamination, equivalent to flon containing cleaning agents, and satisfactorily stable in terms of dispersion as a water system cleaning agent can be obtained. In addition, to use as a dewatering cleaning agent, the low molecular weight polyorganosiloxane is additionally mixed alone or with a surfactant and/or a hydrophilic solvent. Accordingly, cleaning and water substituting properties equivalent to flon containing dewatering cleaning agents and environmental safety can be obtained.
摘要:
A method for cleaning an industrial object by use of an aqueous agent that includes a polyorganosiloxane. The method uses a plurality of vessels and the agent is recovered and resupplied to the method.