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 agentInfo
- 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
- Authority
- IT
- Italy
- Prior art keywords
- water
- esp
- pref
- agent
- soluble
- Prior art date
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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.
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) |
-
1976
- 1976-06-11 IT IT4991276A patent/IT1061765B/en active
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