Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/02—Inorganic compounds
  • C11D7/04—Water-soluble compounds
  • C11D7/06—Hydroxides
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/42—Amino alcohols or amino ethers
  • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/001—Softening compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0026—Low foaming or foam regulating compositions

Definitions

• the invention relates to highly alkaline bottle cleansing agents which are storable for long periods of time and which have the property of suppressing foam in the deans ing solution. More particularly, it relates to agents consisting to a large extent of fine-grained caustic alkali of a given particle size, plus an additive consisting of certain reaction products of propylene oxide.
• alkaline bottle cleansing agents which, beside fairly large quantities of caustic alkali, contain such ingredients as orthoand polyphosphates, gluconates, silicates and, in some instances, wetting agents.
• foam suppressants also are added. The latter not only are to avert an overflow of the liquid due to foaming, but also to facilitate the removal of labels stripped off the bottles in order to avoid shutdowns.
• foam suppressants are of different efiicacy depending upon the source of the foam.
• Label adhesives preferably are dextrin or casein glue which produce foam.
• Chain lubricants and printing inks introduce wetting agents of several kinds, particularly alkylbenzene sulfonates or soaps. Residual bottle contents, such as soft drinks, milk or beer, also give rise to foam formation.
• bottle cleansing agents are employed as hereinafter described which preferably have an alkali content of 50-95 percent.
• the agents according to the invention are characterized by a content of (a) caustic alkali having 3,491,029 Patented Jan. 20, 1970 a grain or particle size of less than 3 mm. diameter and (b) reaction products of propylene oxide with aliphatic polyalcohols whose cloud point is between 10 and C., preferably btween 15 and 40 C.
• the fine-grained caustic alkali content enables ready manufacture of powdered bottle cleansing agents which exhibit no separation, not even upon storage, refilling or transportation.
• the alkali used may be powdered or finely grained whereby the particle size must not be more than 3 mm. and preferably more than percent should be of a particle size of less than 1.5 mm. Upon the use of coarse grains, separation may occur.
• the preferred caustic alkalis are sodiumand potassium hydroxide.
• Preferred reaction products of propylene oxide with polyalcohols are those with polyalcohols of 4 or more hydroxyl groups in their molecules. Particularly effective regarding lowering of the foam volume of the cleansing agents are reaction products with pentaerythritol and dipentaerythritol.
• reaction product of propylene oxide with polyglycerol which is an inexpensixe byproduct of the glycerol manufacture.
• a still bottom remains consisting of a mixture of higher-molecular condensation products of glycerol, usually ranging from 2 to 10 glycerol radicals per molecule.
• the polyglycerols are characterized by their OH value which preferably lies between 900 and 1,200.
• the corresponding polyglycerols also can be produced synthetically.
• reaction products of propylene oxide with polyglycerol are used whose cloud point lies between 20 and 35 C.
• reaction products preferably are employed in quantities of 0.5 to 3.5%, calculated on the total solid bottle cleansing agent.
• the bottle cleansing agents according to the invention may contain, aside from the principal ingredients, i.e., caustic alkali and propylene oxide-polyalcohol reaction products, the customarily used additives, such as orthophosphates, polymeric phosphates, soda, potash, gluconates, and, if desired, wetting agents.
• the agents are employed in the customary bath concentrations of 0.1 to 2 percent, and preferably of 0.5 to 1 percent.
• the most favorable application temperature is 60 to C.
• the bottle cleansing agents according to the invention can be stored for long periods of time. They do not change their foam-depressing properties and are effective against all kinds of foams occurring in bottle washing processes.
• the alkali solutions used were produced by refluxing of 3% NaOH solution in water with different additives for hours.
• additives the following were used: 3% of a commercial dextrin glue; 3% of a commercial casein glue; 3% milk; 0.075% tetrapropylenebenzenesulfonate (100%); 0.1% curd soap.
• 100 ml. each of these solutions were heated to 60 and 80 C., respectively, in a measuring cylinder and then strongly shaken therein times.
• the foam volume thus created was read in ml. immediately after shaking. For the determination of the stability of the foam produced, the foam volume again was read after 30 and 60 seconds. The results are found in Table 2.
• a bottle cleansing agent was prepared by mixing the following compounds:
• EXAMPLE 4 A bottle cleansing agent was produced by mixing the following compounds:
• EXAMPLE 5 A bottle cleanser was produced by mixing the following materials:
• beer-, soft drinkand milk bottles Some of which were provided with paper labels, were washed at C. in an automatic bottle washing machine.
• the bottles were entirely clean after the wash, foam development was very slight, and the labels which had come off, could readily be removed.
• Solution 1 3% dextrin glue.
• Solution 2 3% casein glue.
• a highly alkaline, storable and substantially nonfoaming bottle cleansing agent in solid form, consisting essentially of a caustic alkali, said alkali being present in a quantity of approximately 50 to 95% of the total composition and said alkali having a grain size of less than 3 mm.; a propylene oxide adduct on a polyalcohol selected from the group consisting of pentaerythritol, dipentaerythritol and polylglycerol having an OH value of substantially 900-1200, said adduct having a cloud point ranging from to 50 C. and said adduct being present in an amount of approximately 0.5 to 3.5% calculated on the total composition.
• a solid, substantially non-foaming, storable, bottle cleansing agent consisting essentially of approximately 50 to 90% finely grained caustic alkali having a particle size of less than 3 mm., calculated on the total composition; and approximately 0.5-3.5%, calculated on the total compositon, of a propylene oxide adduct on a polyalcohol selected from the group consisting of pentaerythritol, dipentaerythritol and poly-glycerol of an OH value of substantially 900 to 1200, said adduct having a cloud point of 10 to 50 C.; the balance of said agent being selected from the group consisting of soda, potash, sodium silicate and sodium sulfate.
• a process for washing bottles which comprises subjecting said bottles to a stream of a 0.1 to 0.2% aqueous solution at substantially 60 to 80 C., said solution consisting essentially of approximately 50 to 95%, calculated on the total composition, of finely grained caustic alkali having a grain size of less than 3 mm., and approximate- UNITED STATES PATENTS 2,454,541 11/1948 Bock et a1. 25289 2,463,680 3/1949 Corrigan 252-156 2,554,667 5/1 951 De Groote.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=25980218

Family Applications (2)

Family Applications After (1)

Country Status (8)

Cited By (13)

Families Citing this family (6)

Citations (9)

Family Cites Families (5)

• 1964
  • 1964-10-24 DE DEH54128A patent/DE1289597B/de active Pending
  • 1964-10-24 DE DEH54129A patent/DE1280455B/de active Pending
• 1965
  • 1965-09-15 NL NL656512024A patent/NL145280B/xx unknown
  • 1965-09-15 NL NL656512025A patent/NL144984B/xx not_active IP Right Cessation
  • 1965-10-12 US US495350A patent/US3491029A/en not_active Expired - Lifetime
  • 1965-10-21 DK DK539365AA patent/DK124083B/da unknown
  • 1965-10-22 CH CH1459065A patent/CH478914A/de not_active IP Right Cessation
  • 1965-10-22 GB GB44717/65A patent/GB1056590A/en not_active Expired
  • 1965-10-22 DK DK543765AA patent/DK124412B/da unknown
  • 1965-10-22 BE BE671276D patent/BE671276A/xx unknown
  • 1965-10-22 GB GB44716/65A patent/GB1074218A/en not_active Expired
  • 1965-10-23 ES ES0318856A patent/ES318856A1/es not_active Expired
• 1968
  • 1968-09-19 US US775567*A patent/US3463737A/en not_active Expired - Lifetime

Patent Citations (9)

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