IT1061765B - Wetting and antifoam agent based on anionic surfactant - contg. reaction prod. of acid, propylene oxide and opt. poly:ol or amine as hydrotropic agent - Google Patents

Wetting and antifoam agent based on anionic surfactant - contg. reaction prod. of acid, propylene oxide and opt. poly:ol or amine as hydrotropic agent

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Publication number
IT1061765B
IT1061765B IT4991276A IT4991276A IT1061765B IT 1061765 B IT1061765 B IT 1061765B IT 4991276 A IT4991276 A IT 4991276A IT 4991276 A IT4991276 A IT 4991276A IT 1061765 B IT1061765 B IT 1061765B
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IT
Italy
Prior art keywords
water
esp
pref
agent
soluble
Prior art date
Application number
IT4991276A
Other languages
Italian (it)
Original Assignee
Ciba Geigy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH769575A external-priority patent/CH604813A5/en
Priority claimed from CH520276A external-priority patent/CH610209A5/en
Application filed by Ciba Geigy filed Critical Ciba Geigy
Application granted granted Critical
Publication of IT1061765B publication Critical patent/IT1061765B/en

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Abstract

Wetting and antifoam agent based on anionic surfactants contains 2-50, pref. 10-50, esp. 10-20 (wt.)% anionic surfactant (I), 6-50, pref. 10-50, esp. 15-30% component (II), opt. max. 30, pref. 1-10% silicone oil (III) and 2-92, pref. 2-80, esp. 40-75% water. (I) has the formula R-A-(CH2-CHR'-O)m-X and is in free or salt form (in which R is an 8-22C aliphatic or a 10-22C cycloaliphatic or aliphatic-aromatic hydrocarbyl gp. R' is H or Me. A is -O- or -CO-O-. X is the radical left after eliminating a OH gp. from an inorganic polybasic oxy-acid, a polybasic carboxylic acid or a carboxyalkyl radical. m = 1-20). (II) is scarcely water-soluble and is the reaction prod. of (a1) a 3-10C satd. dicarboxylic or 10-18c (un)satd. fatty acid and (a2) 1,2-propylene oxide (PrO or polypropylene glycol (PPG) or of (a3) a 10-18C (un)satd. fatty acid, (a4) a 3-6 hydric alcohol, an alkylene diamine or a polyalkylene polyamine and (a5) PrO. The agent is specified for use as antifrothing agent for aq. systems outside the textile industry, specifically in paper pulp and paper coating compsns., brushing-on colours and sewage. (II) is used as hydrotropic agent instead of the water-insol. aliphatic monoalcohols with min. 8C or their scarcely water-soluble alkylene oxide adducts or mixts. with scarcely water-soluble alkylphenol-alkylene oxide adducts of the parent specification. Their good hydrotropic properties make them esp. useful in the application of substances (dyestuffs, finishing agents) which are insol. or scarcely soluble in water, eliminating the need for large amts. of solvent and leading to economies.
IT4991276A 1975-06-13 1976-06-11 Wetting and antifoam agent based on anionic surfactant - contg. reaction prod. of acid, propylene oxide and opt. poly:ol or amine as hydrotropic agent IT1061765B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH769575A CH604813A5 (en) 1975-06-13 1975-06-13 Low foaming wetting agent compsns.
CH1301175 1975-10-07
CH520276A CH610209A5 (en) 1976-04-26 1976-04-26 Wetting agent and foam inhibitor based on anionic surfactants

Publications (1)

Publication Number Publication Date
IT1061765B true IT1061765B (en) 1983-04-30

Family

ID=27175128

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4991276A IT1061765B (en) 1975-06-13 1976-06-11 Wetting and antifoam agent based on anionic surfactant - contg. reaction prod. of acid, propylene oxide and opt. poly:ol or amine as hydrotropic agent

Country Status (1)

Country Link
IT (1) IT1061765B (en)

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