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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
• • 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
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38672—Granulated or coated enzymes

Definitions

• the enzyme containing granulate described in Danish patent application No. 4368/88 comprises a core surrounded by a coating comprising cellulose fibres or artificial fibres in an amount of 1.5 to 40% by weight, based on the dry weight of the granulate except for the core, a binder in an amount of 0 to 15% by weight, based on the dry weight of the granulate, except for the core, a filler, and one or more granulating agents, whereby the core and/or the coating contains an enzyme.
• the invention is a further development of the special embodiment of the invention described in Danish patent application No. 4368/88, which comprises an enzyme in either the core or the shell.
• the shell or the core in the detergent additive granulate according to the invention does not necessarily contain an enzyme; but the core contains one detergent additive (which may be an enzyme, here identified as the primary detergent additive) , and the shell contains another detergent additive (which may be another enzyme, here identified as the secondary detergent additive) .
• the primary detergent additive should be protected against the secondary detergent additive and/or environmental factors ,- ⁇ e.g. in cases where an enzyme is degraded by a bleaching agent and humidity in the atmosphere, or vice versa
• there is a need for an effective separation between the primary and secondary detergent additives during storage there is a need for a granulate with high physical strength, and for a. corresponding method of production, which is easily controllable and adapted for an industrial scale.
• the filler consists of or comprises inorganic salts.
• the shell is surrounded by a final dust suppressing coating. This is advantageous in those cases where the shell tends to produce an unacceptable amount of dust.
• This final dust suppressing coating can also in certain cases serve as a further protective coating.
• Example 1 is granulated in a Lodige mixer FM 50 with pure water as granulating agent as described in US patent No. 4.106.991, Example 1.
• the granulate is dried on a fluid bed to a water content below 1% and finally siftet to get a product with particle range 300 ⁇ m to 900 ⁇ m.
• Example 7 kg of a granulate produced as described in Example 1 with particle size between 300-900 ⁇ m is coated with a layer of glyceryl stearate/palmitate Grindtek MSP 90 (melting point 68°C) and bentonite ASB 350 ECC in the following manner.
• the granulate is heated to 75-80°C in a 20 1 heat jacketed Lodige mixer which temperature is kept during the whole coating process.
• the heated granulate is mixed and sprayed with 700 g melted MSP90 followed by a powdering with 1000 g bentonite followed by spraying with 210 g* * MSP90 followed by powdering with 1000 g MSP90 followed by spraying with 210 g MSP90.
• the granulate is finally cooled to room temperature on a fluid bed and siftet between 300 and 1000 ⁇ m.
• a granulate with an inner core containing an optical brightener and an outer shell containing a proteolytic enzyme with the core and the shell separated by a protective layer is produced in the following manner.
• the granulate is finally dried to a water content below 1% and siftet between 300 and 1000 ⁇ m.
• Example 3 7 kg of granulate as produced as described in Example 3 is coated with a layer of sodium thiosulphate and kaolin by a conventionel fluid bed coating process.
• 280 g sodium thiosulphate and 280 g kaolin SPESWHITE ECC are dissolved/dispersed in 1000 g of water and sprayed onto the 7 kg of granulate in a Glatt WSG 5 fluid bed with continuous layering and drying.
• the granulate has a proteolytic activity of 5.2 KNPU/g.
• the stability test is made at a temperature of 37°C and a humidity of 70%.
• a granulate with an inner core containing TAED and 5 an outer shell containing a proteolytic enzyme with the core and the shell separated by a protective layer was produced in the following manner.
• the shell was supplied with a continuous self- regulating loss-in-weight powder dosing system with a powder dosing rate of 20 kg/h and with a total of 2.6 kg of an

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)
• Detergent Compositions (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=8097473

Family Applications (1)

Country Status (7)

Cited By (20)

Families Citing this family (110)

Family Cites Families (5)

• 1989
  • 1989-02-20 DK DK078089A patent/DK78089D0/da not_active Application Discontinuation
• 1990
  • 1990-02-16 DK DK90903319.3T patent/DK0458845T3/da active
  • 1990-02-16 JP JP2503460A patent/JP2801395B2/ja not_active Expired - Fee Related
  • 1990-02-16 ES ES199090903319T patent/ES2036904T3/es not_active Expired - Lifetime
  • 1990-02-16 EP EP90903319A patent/EP0458845B1/de not_active Expired
  • 1990-02-16 AT AT90903319T patent/ATE83797T1/de not_active IP Right Cessation
  • 1990-02-16 WO PCT/DK1990/000043 patent/WO1990009428A1/en not_active Ceased
  • 1990-02-16 DE DE9090903319T patent/DE69000662T2/de not_active Expired - Fee Related

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events