Title:
PRODUCTION OF CRYSTALLINE ALKALI METAL SILICATE GRANULE AND HIGH-BULK-DENSITY GRANULAR DETERGENT COMPOSITION FOR CLOTHING
Document Type and Number:
Japanese Patent JP3008266
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain crystalline alkali metal silicate granules having a high bulk density, showing excellent flow properties even after stored under high temperature high humidity conditions and retaining suppressed hygroscopicity and easy solubility by mixing a crystalline alkali metal silicate having specified properties with a specified surfactant and the obtained mixture under specified conditions.
SOLUTION: A crystalline alkali metal silicate essentially consisting of SiO2 and M2O, having an SiO2/M2O molar ratio of 1.5-2.6, having a maximum pH of above 11.0 when measured in a 0.1wt.% dispersion at 20°C and having an ion exchange capacity of 100CaCO3 mg/g or above is mixed with a nonionic surfactant (e.g. polyoxyethylene dodecyl ether) and an acid precursor (e.g. palmitic acid) of an anionic surfactant capable of taking a lamellar orientation. The obtained mixture is granulated while it is being tumbled with an agitation mixer to obtain granules having a heightened bulk density of 0.6-1.2g/ml.
Inventors:
Hiroyuki Yamashita
Osamu Yamaguchi
Teruo Kubota
Katsuhiko Kasai
Sei Tamura
Masaki Maidori
Osamu Yamaguchi
Teruo Kubota
Katsuhiko Kasai
Sei Tamura
Masaki Maidori
Application Number:
JP31133996A
Publication Date:
February 14, 2000
Filing Date:
November 06, 1996
Export Citation:
Assignee:
Kao Corporation
International Classes:
C01B33/26; C11D1/83; C11D3/08; C11D3/12; C11D17/06; (IPC1-7): C11D1/83; C01B33/26; C11D3/08; C11D3/12; C11D17/06
Domestic Patent References:
| JP6502445A |
Attorney, Agent or Firm:
Yoshinori Hosoda