摘要:
The present invention relates to a silicone composition prepared by reacting a mixture comprising (i) mineral oil, (ii) a polyorganosiloxane, (iii) a silicon compound, and (iv) a catalytic amount of a catalyst. The compositions of this invention are resistant to phase separation and are useful as foam control compositions in foam producing systems.
摘要:
This invention relates to a foam control composition comprising: (A) a silicone antifoam comprising (i) an organopolysiloxane having at least one silicon-bonded substituent of the formula X—Ar, wherein X represents a divalent aliphatic group bonded to silicon through a carbon atom and Ar represents an aromatic group, (ii) an organosilicon resin having the formula R1aSiO(4-a)/2 where R1 represents a hydrocarbon, a hydrocarbonoxy or a hydroxyl group and a has an average value of 0.5 to 2.4, and (iii) a hydrophobic filler; and (B) an organopolysiloxane resin having at least one polyoxyalkylene group in which the organopolysiloxane resin comprises tetrafunctional siloxane units having the formula SiO4/2 and monofunctional siloxane units having the formula R23SiO1/2, wherein the total number of tetrafunctional siloxane units in the resin is at least 50% based on the total number of siloxane units, and R2 represents a hydrocarbon group. The foam control composition may be added to a potentially foaming liquid, particularly a detergent, such as an HDL detergent.
摘要翻译:本发明涉及一种泡沫控制组合物,其包含:(A)硅氧烷消泡剂,其包含(i)具有至少一个具有式X-Ar的硅键合取代基的有机聚硅氧烷,其中X表示通过碳键合到硅上的二价脂族基团 原子,Ar表示芳族基团,(ii)具有式R a a SiO(4-a)/ 2的有机硅氧烷树脂,其中R 1表示烃,烃氧基或羟基,平均值为0.5〜2.4,( iii)疏水填料; 和(B)具有至少一个聚氧化烯基团的有机聚硅氧烷树脂,其中有机聚硅氧烷树脂包含具有式SiO 4/2的四官能硅氧烷单元和具有式R23SiO1 / 2的单官能硅氧烷单元,其中树脂中的四官能硅氧烷单元的总数 基于硅氧烷单元的总数为至少50%,并且R 2表示烃基。 泡沫控制组合物可以加入潜在发泡液体中,特别是洗涤剂如HDL洗涤剂。
摘要:
A foam control agent which is free from hydrocarbon oils and comprises (A) an organopolysiloxane with 0 to 60% of units (i) ##EQU1## wherein R denotes a C.sub.8 hydrocarbon group and a is 0-3, and 40 to 100% of units (ii) ##EQU2## wherein R" is --Z.sub.z --R' with R' being an C.sub.9-35 alkyl, Z is a linking group and z is 0 or 1, b 0, 1 or 2, c 1 or 2 and b+c 1, 2 or 3, provided more than 70% by weight of the carbon content of (A) is due to R", (B) a finely divided hydrophobic particulate material and (C) optionally a MQ organosilicon resin. The agents give improved performance and stability e.g. in detergent powders.
摘要:
A suds-controlling composition of improved stability in aqueous surfactants, such as detergents, is disclosed comprising a silicon antifoam consisting essentially of a liquid branched polyorganosiloxane and a finely divided filler having a hydrophobic surface; a polyorganosiloxane polyoxyalkylene copolymer; and a cyclic organopolysiloxane. The silicone antifoam and polyorganosiloxane polyoxyalkylene copolymer are combined in a ratio of 1/3 to 3/1.
摘要:
A granulated foam control composition comprises a foam control agent based on a polydiorganosiloxane fluid, an organic additive of melting point 45″17C to 100° C. comprising a polyol ester, a water-soluble particulate inorganic carrier and a polymer having a net cationic charge. The mean number of carbon atoms in the organo groups of the polydiorganosiloxane fluid is at least 1.3. The foam control agent includes a hydrophobic filler dispersed in the polydiorganosiloxane fluid, and optionally an organosilicone resin. The polyol ester is miscible with the polydiorganosiloxane fluid.
摘要:
This invention relates to a foam control composition comprising: (A) a silicone antifoam comprising (i) an organopolysiloxane having at least one silicon-bonded substituent of the formula X—Ar, wherein X represents a divalent aliphatic group bonded to silicon through a carbon atom and Ar represents an aromatic group, (ii) an organosilicon resin having the formula R1aSiO(4-a)/2 where R1 represents a hydrocarbon, a hydrocarbonoxy or a hydroxyl group and a has an average value of 0.5 to 2.4, and (iii) a hydrophobic filler; and (B) an organopolysiloxane resin having at least one polyoxyalkylene group in which the organopolysiloxane resin comprises tetrafunctional siloxane units having the formula SiO4/2 and monofunctional siloxane units having the formula R23SiO1/2, wherein the total number of tetrafunctional siloxane units in the resin is at least 50% based on the total number of siloxane units, and R2 represents a hydrocarbon group. The foam control composition may be added to a potentially foaming liquid, particularly a detergent, such as an HDL detergent.
摘要翻译:本发明涉及一种泡沫控制组合物,其包含:(A)硅氧烷消泡剂,其包含(i)具有至少一个具有式X-Ar的硅键合取代基的有机聚硅氧烷,其中X表示通过碳键合到硅上的二价脂族基团 原子,Ar表示芳族基团,(ii)具有式R a a SiO(4-a)/ 2的有机硅氧烷树脂,其中R 1表示烃,烃氧基或羟基,平均值为0.5〜2.4,( iii)疏水填料; 和(B)具有至少一个聚氧化烯基团的有机聚硅氧烷树脂,其中有机聚硅氧烷树脂包含具有式SiO 4/2的四官能硅氧烷单元和具有式R23SiO1 / 2的单官能硅氧烷单元,其中树脂中的四官能硅氧烷单元的总数 基于硅氧烷单元的总数为至少50%,并且R 2表示烃基。 泡沫控制组合物可以加入潜在发泡液体中,特别是洗涤剂如HDL洗涤剂。
摘要:
A foam control agent, comprising (A) an organopolysiloxane material having at least one silicon-bonded substituent of the formula X-Ph, wherein X denotes a divalent aliphatic organic group bonded to silicon through a carbon atom and Ph denotes an optionally substituted aromatic group, (B) a water-insoluble organic fluid, (C) an organosilicon resin and (D) a hydrophobic filler. The foam control agent may be provided as an emulsion or as a particulate material. It is especially useful as a detergent foam control agent.
摘要:
A suds-controlling composition which comprises 100 parts by weight of a silicone antifoam which has a liquid branched polyhydrocarbyl siloxane material having at most 2 mole % branching and at least 2 trifunctional or tetrafunctional siloxane units, a finely divided hydrophobic filler, and from 75 to 900 parts by weight of a polyorganosiloxane polyoxyalkylene copolymer can be used as a stable suds-controlling composition for aqueous surfactant compositions, especially liquid detergents.
摘要:
A granulated foam control composition comprises a foam control agent based on a polydiorganosiloxane fluid, an organic additive of melting point 45″17C to 100° C. comprising a polyol ester, a water-soluble particulate inorganic carrier and a polymer having a net cationic charge. The mean number of carbon atoms in the organo groups of the polydiorganosiloxane fluid is at least 1.3. The foam control agent includes a hydrophobic filler dispersed in the polydiorganosiloxane fluid, and optionally an organosilicone resin. The polyol ester is miscible with the polydiorganosiloxane fluid.
摘要:
A granular material for use in the treating of textile materials, comprising (i) a silicone material having at least one nitrogen containing substituent, (ii) an aluminosilicate carrier and (iii) a binder, preferably in conjunction with a surface active material. Also described is a process for preparing such granular materials, which comprises forming a water-in-oil emulsion of component (i) in conjunction with component (iii) by dispersing and agitating said components in water, followed by depositing said emulsion onto a free flowing powder form of component (ii), for example by spraying, and removing sufficient water from the product to obtain a free flowing granular material. The granules are useful in a process of treating textile materials in an aqueous medium, particularly where the textile material is denim. Preferably the granular material is added into the finishing steps of denim such as the desizing, the fading or the softening steps and helps with avoiding backstaining.