USRE39139EExpiredUtility

Process for preparing household detergent or cleaner shapes

45
Assignee: HENKEL KGAAPriority: Mar 13, 1997Filed: Apr 16, 2003Granted: Jun 20, 2006
Est. expiryMar 13, 2017(expired)· nominal 20-yr term from priority
Inventors:Gerhard BlaseyDieter JungHans-Friedrich KruseFred Schambill
C11D 17/0047C11D 17/0073
45
PatentIndex Score
0
Cited by
116
References
32
Claims

Abstract

A process for making a detergent tablet by forming a disintegrating agent by compacting cellulose or a cellulose derivative, forming disintegrating agent particles comprising the disintegrating agent, dry mixing a washing- or cleaning-active substance and an amount of the disintegrating agent particles effective to rapidly dissolve or disperse the composition in water, and shaping the resulting mixture into a tablet. The disintegrating agent particles have a particle size distribution of less than 10% by weight smaller than about 0.2 mm particle size and no more than 1% by weight of dust-fine particles.

Claims

exact text as granted — not AI-modified
1. A process for making a solid, shaped composition, said process comprising the steps of forming a disintegrating agent by compacting cellulose or a cellulose derivative, forming disintegrating agent particles comprising the disintegrating agent, dry mixing a washing- or cleaning-active substance and an amount of the disintegrating agent particles effective to rapidly dissolve or disperse the composition in water, said disintegrating agent particles having a particle size distribution of less than 10% by weight smaller than about 0.2 mm particle size and no more than 1% by weight of dust-free particles, and shaping the resulting mixture into a tablet. 
     
     
       2. A process according to  claim 1 , wherein the tablet is shaped by compression. 
     
     
       3. A process according to  claim 1 , wherein the disintegrating agent particles are formed by spray drying, granulation, agglomeration, compacting, pelleting, or extrusion. 
     
     
       4. A process according to  claim 1 , wherein at least about 951  95% by weight of said disintegrating agent particles have a particle size of at least 0.2 mm and at most 3 mm. 
     
     
       5. A process according to  claim 1 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.2 mm and at most 3 mm. 
     
     
       6. A process according to  claim 1 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.2 mm and at most 1.6 mm. 
     
     
       7. A process according to  claim 1 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.3 mm and at most 3 mm. 
     
     
       8. A process according to  claim 1 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.3 mm and at most 2 mm. 
     
     
       9. A process according to  claim 1 , wherein said tablet comprises about 1% to about 20% by weight of said disintegrating agent particles. 
     
     
       10. A process according to  claim 9 , wherein said tablet comprises about 2% to about 15% by weight of said disintegrating agent particles. 
     
     
       11. A process according to  claim 10 , wherein said tablet comprises about 2% to about 10% by weight of said disintegrating agent particles. 
     
     
       12. A process according to  claim 1 , wherein said disintegrating agent particles comprise at least about 20% by weight of said disintegrating agent. 
     
     
       13. A process according to  claim 12 , wherein said disintegrating agent particles comprise at least about 50% by weight of said disintegrating agent. 
     
     
       14. A process according to  claim 13 , wherein said disintegrating agent particles comprise at least about 70% by weight of said disintegrating agent. 
     
     
       15. A process according to  claim 14 , wherein said disintegrating agent particles comprise at least about 80% by weight of said disintegrating agent. 
     
     
       16. A process according to  claim 15 , wherein said disintegrating agent particles comprise at least about 90% by weight of said disintegrating agent. 
     
     
       17. A process according to  claim 16 , wherein said disintegrating agent particles comprise at least about 97% by weight of said disintegrating agent. 
     
     
       18. A process according to  claim 1 , wherein said cellulose or cellulose derivative is selected from the group consisting of thermomechanical pulp and chemothermomechanical pulp. 
     
     
       19. A process according to  claim 1 , wherein said cellulose or cellulose derivative is selected from the group consisting of beech cellulose, beech sulfite cellulose, cotton cellulose, spruce cellulose and combinations thereof. 
     
     
       20. A process for making a solid, shaped composition, said process comprising the steps of forming disintegrating agent particles by compacting cellulose or a cellulose derivative, dry mixing a washing- or cleaning-active substance and an amount of the disintegrating agent particles effective to rapidly dissolve or disperse the composition in water, said disintegrating agent particles having a particle size distribution of less than 10% by weight smaller than about 0.2 mm particle size and no more than 1% by weight of dust-fine particles, and shaping the resulting mixture into a tablet. 
     
     
       21. A process according to  claim 20 , wherein the tablet is shaped by compression. 
     
     
       22. A process according to  claim 20 , wherein at least about 95% by weight of said disintegrating agent particles have a particle size of at least 0.2 mm and at most 3 mm. 
     
     
       23. A process according to  claim 20 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.2 mm and at most 3 mm. 
     
     
       24. A process according to  claim 20 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.2 mm and at most 1.6 mm. 
     
     
       25. A process according to  claim 20 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.3 mm and at most 3 mm. 
     
     
       26. A process according to  claim 20 , wherein at least about 90% by weight of said disintegrating agent particles have a particle size of at least 0.3 mm and at most 2 mm. 
     
     
       27. A process according to  claim 20 , wherein said tablet comprises about 1% to about 20% by weight of said disintegrating agent particles. 
     
     
       28. A process according to  claim 27 , wherein said tablet comprises about 2% to about 15% by weight of said disintegrating agent particles. 
     
     
       29. A process according to  claim 28 , wherein said tablet comprises about 2% to about 10% by weight of said disintegrating agent particles. 
     
     
       30. A process according to  claim 20 , wherein said cellulose or cellulose derivative is selected from the group consisting of thermomechanical pulp and chemothermomechanical pulp. 
     
     
       31. A process according to  claim 20 , wherein said cellulose or cellulose derivative is selected from the group consisting of beach cellulose, beach sulfite cellulose, cotton cellulose, spruce cellulose and combinations thereof. 
     
     
       32. A process according to  claim 26 , wherein said tablet comprises about  2 %  to about  10   %  by weight of said disintegrating agent particles.

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