Method for granulating cationic surfactant
US4510073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Jul 1, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/62
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for granulating a cationic surfactant having good water dispersibility and good storage stability comprising the steps of: PA1 (i) mixing 100 parts by weight of a powdered di (long-chain alkyl) quaternary ammonium salt having an average particle diameter of 150 .mu.m or less with 10 to 30 parts by weight of finely divided silica having an average primary particle diameter of 0.1 .mu.m or less; PA1 (ii) adding 20 to 80 parts by weight of a self-adhesive substance to the resultant mixture in the step (i), followed by granulation; and PA1 (iii) adding 30 to 150 parts by weight of at least one member selected from the group consisting of finely divided zeolite having an average primary particle diameter of 0.1 to 10 .mu.m, finely divided calcium carbonate having an average primary particle diameter of 0.01 to 10 .mu.m, and a mixture thereof, followed by granulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.