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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
• • 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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/08—Silicates

Definitions

• the invention relates to detergents with 5 to 50% by weight, preferably 1o to 3o% by weight, at least one surfactant, 0.5 to 60% by weight of a builder and conventional washing aids.
• Sodium silicates have long been used as builders in detergents, especially in conjunction with soda, but in the course of modern detergent development they have been used with substances with better builder properties, e.g. condensed phosphates, detached.
• zeolite 4A in combination with polycarboxylates is the basic builder for many detergent products.
• amorphous sodium disilicate in the form of water glass or as a powder in an amount of 5% by weight is still common today in the majority of the detergents manufactured.
• the task assigned to sodium disilicate is not limited to its corrosion-inhibiting effect. It also serves as a builder with good absorption properties for liquid components and improves the dirt-carrying capacity of the wash liquor due to its dispersing effect. It also binds some of the hardness constituents in the wash water and thereby also favors the washing result.
• amorphous sodium disilicate with water contents of 0.3 to 6% by weight, preferably from 0.5 to 2% by weight, e.g. the powdery amorphous sodium disilicate with a water content of 15 to 23% by weight in a tilted rotary furnace equipped with devices for moving solid matter, in which it is treated with flue gas at temperatures of 25o to 500 ° C for 1 to 6o minutes in countercurrent , wherein the rotary kiln is insulated so that the temperature of its outer wall is less than 60 ° C.
• the amorphous sodium disilicate emerging from the rotary kiln can be crushed to a particle size of 0.1 to 12 mm using a mechanical crusher.
• the comminuted sodium disilicate is preferably milled to a grain size of 2 to 400 ⁇ m, the mill being operated at a peripheral speed of 0.5 to 60 ⁇ m / s.
• the detergent of the present invention is now characterized in that it contains an amorphous, low-water sodium disilicate with a water content of 0.3 to 6% by weight as a builder.
• Detergents were produced according to the basic formulation below using the individual sodium disilicate species (NaDS; Examples I-VI):
• the ash value as a measure of the tissue incrustation, was determined after 25 washes by determining the percentage of the residue on ignition at 800 ° C.
• Table 2 summarizes the washing results obtained with the detergents (type A) based on the Na disilicate in accordance with Examples I-VI.
• the detergents (type A) equipped with partially dewatered Na disilicate show a clear superiority over the detergent formulation based on the starting product (Example I, Na disilicate with 18% H 2 O).
• the detergents (type A) produced on the basis of Examples I-VI were also subjected to a test for determining the storage stability.
• the individual detergent samples were sealed in closed cardboard boxes (wax cardboard, water vapor permeability: approx. 10 gm -2 day -1 ) in a climatic cabinet at 37 ° C and 70% rel. Humidity stored for 4 weeks.
• the flowability was assessed in accordance with Table 3.
• Table 3 the detergents (type A) based on the partially dewatered products according to the invention (Examples 11-VI) are clearly superior in that they more or less retain their free-flowing properties, while the commercially available Na disilicate (Example I) below the selected storage conditions completely hardened.
• Nonionic surfactants are understood to mean those compounds which have an organic, hydrophobic group and a hydrophilic radical, for example the condensation products of alkylphenols or higher fatty alcohols with ethylene oxide (fatty alcohol ethoxylates), the condensation products of polypropylene glycol with ethylene oxide or propylene oxide, the condensation products of ethylene oxide with the Reaction product from ethylenediamine and propylene oxide, as well as long-chain tertiary amine oxides
• surfactants with a zwitterionic (ampholytic) character include the following compounds: derivatives of aliphatic, secondary and tertiary amines or quaternary ammonium compounds with 8 to 18 carbon atoms and a hydrophilic group in the aliphatic radical, e.g.
• Suitable washing auxiliaries according to the invention are weakly acidic, neutral or alkaline inorganic or organic salts, in particular inorganic or organic complexing agents.
• Useful, weakly acidic, neutral or alkaline-reacting salts are, for example, the bicarbonates or carbonates of the alkalis, and also the alkali salts of organic, non-capillary-active sulfonic acids, carboxylic acids and sulfocarboxylic acids containing 1 to 8 carbon atoms.
• the organic complexing agents include, for example, nitrilotriacetic acid, ethylenediaminetetraacetic acid, N-hydroxyethylethylenediaminetriacetic acid or polyalkylene-polyamine-N-polycarboxylic acids.
• Washing aids according to the invention further include products such as the alkali or ammonium salts of sulfuric acid, boric acid, alkylene, hydroxyalkylene or aminoalkylenephosphonic acid, as well as bleaching agents, stabilizers for peroxide compounds (bleaching agents) and water-soluble organic complexing agents.
• products such as the alkali or ammonium salts of sulfuric acid, boric acid, alkylene, hydroxyalkylene or aminoalkylenephosphonic acid, as well as bleaching agents, stabilizers for peroxide compounds (bleaching agents) and water-soluble organic complexing agents.
• the bleaching agents include sodium perborate or tetrahydrate, sodium percarbonate, the alkali metal salts of peroxomono- or peroxodisulfuric acid, the alkali metal salts of peroxodiphosphoric acid (H 4 P 2 0 8 ), and alkali metal salts of peroxocarboxylic acids, such as diperoxododecanedioic acid.
• water-soluble, precipitated magnesium silicate, organic complexing agents such as the alkali metal salts of iminodiacetic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid, methylenediphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid and nitrilotrismethylenephosphonic acid act as stabilizers for these bleaching agents.
• Washing aids that increase the dirt-carrying capacity of washing liquors, such as carboxymethyl cellulose, carboxymethyl starch, methyl cellulose or copolymers of maleic anhydride with methyl vinyl ether or acrylic acid, foam regulators, such as mono- and dialkyl phosphoric acid esters with 16 to 20 C atoms in the alkyl radical, and optical brighteners, disinfectants and enzymes, such as proteas , Amylases, lipases can also be additional components of the detergent of the invention.
• foam regulators such as mono- and dialkyl phosphoric acid esters with 16 to 20 C atoms in the alkyl radical
• optical brighteners disinfectants and enzymes, such as proteas , Amylases, lipases can also be additional components of the detergent of the invention.

Landscapes

• 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 (2)

Family

ID=6400169

Family Applications (1)

Country Status (21)

Cited By (7)

Families Citing this family (16)

Citations (5)

Family Cites Families (5)

• 1990
  • 1990-02-15 DE DE4004626A patent/DE4004626A1/de not_active Withdrawn
• 1991
  • 1991-01-23 ES ES91100795T patent/ES2072456T3/es not_active Expired - Lifetime
  • 1991-01-23 AT AT91100795T patent/ATE122092T1/de active
  • 1991-01-23 CA CA002034835A patent/CA2034835A1/fr not_active Abandoned
  • 1991-01-23 DK DK91100795.3T patent/DK0444415T3/da active
  • 1991-01-23 DE DE59105345T patent/DE59105345D1/de not_active Expired - Fee Related
  • 1991-01-23 EP EP91100795A patent/EP0444415B1/fr not_active Expired - Lifetime
  • 1991-02-01 US US07/649,451 patent/US5096609A/en not_active Expired - Fee Related
  • 1991-02-13 TR TR91/0155A patent/TR25396A/xx unknown
  • 1991-02-13 KR KR1019910002501A patent/KR910015694A/ko not_active Withdrawn
  • 1991-02-13 FI FI910712A patent/FI97237C/fi active IP Right Grant
  • 1991-02-13 AR AR91319052A patent/AR245495A1/es active
  • 1991-02-14 JP JP3021008A patent/JPH0726290A/ja active Pending
  • 1991-02-14 PT PT96767A patent/PT96767B/pt not_active IP Right Cessation
  • 1991-02-14 BR BR919100594A patent/BR9100594A/pt not_active IP Right Cessation
  • 1991-02-14 NO NO910598A patent/NO176326C/no unknown
  • 1991-02-14 RU SU914894525A patent/RU2024609C1/ru active
  • 1991-02-15 YU YU26991A patent/YU26991A/sh unknown
  • 1991-02-15 SI SI9110269A patent/SI9110269A/sl unknown
• 1992
  • 1992-11-25 HR HRP-269/91A patent/HRP921352A2/xx not_active Application Discontinuation
• 1993
  • 1993-05-04 LV LVP-93-279A patent/LV10482B/lv unknown
  • 1993-11-05 LT LTIP1444A patent/LTIP1444A/xx not_active Application Discontinuation

Patent Citations (5)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events