Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for making nanoporous granular material and detergent composition

A kind of detergent and nanopore technology, which is applied in the preparation of detergent mixture compositions, detergent compositions, organic detergent compositions, etc., and can solve the problems of not providing and the like

Inactive Publication Date: 2002-01-09
PROCTER & GAMBLE CO
View PDF23 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent does not provide a method of making a granular material with nanopore size that can significantly improve solubility, activity and liquid carrying capacity, especially nanoporous particulate materials for detergent applications

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0064] A

Embodiment II

[0066] A

[0067] The following examples illustrate the advantages of nanoporous particulate raw materials for the manufacture of detergents among other products.

Embodiment III

[0069] Heat the aqueous solution containing the ingredients listed in Table A to 91°C and pass it through an ultrasonic nebulizer (Sono-Tek  ) into the sample tray (Sample tray) filled with liquid nitrogen at a flow rate of 75.3 g / min and a work rate of 2.5 watts for 12 seconds. The frozen liquid droplets were then freeze-dried in a vacuum chamber (commercially produced by APSI Inc., model D) at a pressure of 200 mT for 2 hours.

[0070] Table A

[0071] Composition % (weight)

[0072] MgSO 4 27.8

[0073] Micronized sodium carbonate 32.7

[0074] Distilled water 49.5

[0075] The prepared particles are spherical with a surface area of ​​about 25m 2 / gm, with a porosity of about 28%, showing excellent liquid-carrying properties.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
porosityaaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

A process for producing a starting material in a granular form and in a nanoporous anhydrous state, a process for improving the water-solubility and controlled release characteristics of a detergent material, and a detergent composition are disclosed. In one aspect, a process for producing a starting material in a granular form and in a nanoporous anhydrous state includes obtaining a starting material in a form of a dispersion or solution in a sublimable solvent or mixtures of sublimable solvents, forming graded droplets by atomization, freezing the graded droplets in a freezing medium at a controlled freezing rate of a least 100 DEG C. per second to form frozen droplets and drying the frozen droplets by vacuum sublimation to obtain freeze-dried granules of the starting material in a nanoporous anhydrous state. The starting material in dispersion or solution form has a viscosity suitable for atomization and formation of graded droplets.

Description

technical field [0001] The invention relates to nanoporous granular raw materials, especially a method for producing granular and nanoporous anhydrous raw materials, a method for improving the water solubility and controlled release of detergent raw materials, and a detergent composition. Background of the invention [0002] Granular materials such as those used to prepare detergent compositions suffer from various disadvantages related to lack of particle size and inconsistent particle pore size. A major disadvantage arising from the non-uniform pore size, low porosity and non-uniform size distribution of granular materials is that the solubility of detergent compositions in water is adversely affected. Detergent formulators are often faced with the challenge of preventing active ingredients from diffusing onto the fabric or dishes being cleaned. For example, new low-dosage or "compact" detergent products experience dissolution problems, especially...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/06B01J2/02B01J2/06C11D3/04C11D3/37C11D3/382C11D11/00
CPCC11D11/0088C11D11/0082B01J2/02C11D3/505
Inventor S·阿钱塔P·A·弗兰斯
Owner PROCTER & GAMBLE CO