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EP0257458A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Scrubbing agent and process for producing the same

Assignee: Ozaki Yukio
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Filing: 1987-08-12
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Granted: —
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Expires: 2007-08-12
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Abstract

Abstract This invention provides a scrubbing agent comprising granulated calcite extracted from glacial limestone. A process for producing a scrubbing agent containing calcite as the main component, comprises the crushing step of crushing glacial limestone and the fractionating step of subjecting the thus-crushed glacial limestone to air fractionation to extract a fractionated portion containing calcite as the main component. In addition, another process for producing a scrubbing agent containing calcite as the main component, comprising: the crushing step of crushing glacial limestone; the suspending step of suspending the thus-crushed glacial limestone in water; the fractionating step of placing the thus-obtained suspension in a stationary manner to collect supernatant liquid; and the drying step of drying the supernatant liquid. Fig. 1 is a chart showing the result of powder X-ray diffraction of a scrubbing agent used in a cleansing preparation in accordance with the present invention.

Inventors

  • 👤 Akira Matsuzaki

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 13:35
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/022; A61K8/0225; A61K8/18; A61K8/19; A61Q; A61Q19/00; A61Q19/10; C; C01; C01F; C01F11/00; C01F11/18; C01F11/185; A61K2800/00; A61K2800/20; A61K2800/28; A61K2800/40; A61K2800/41; A61K2800/412; C01P; C01P2004/00; C01P2004/50

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 10 words
A scrubbing agent comprising granulated calcite extracted from glacial limestone.
Claim 2
Dependent Claim 10 words
A scrubbing agent comprising granulated calcite extracted from glacial limestone.
Claim 3
Dependent Claim 23 words
A scrubbing agent according to Claim 1, wherein said granulated calcite essentially contains particles having a particle size of 10 µm or less.
Claim 4
Dependent Claim 75 words
A scrubbing agent according to Claim 1 or 2, wherein said granulated calcite comprises the following particle size composition: 32 - 42      ; Me 0.0 - 15.0% 42 - 60 Me      ; 0.0 - 15.0% 60 - 80 Me      ; 0.0 - 20.0% 80 - 100 Me      ; 10.0 - 60.0% 100 - 150 Me      ; 15.0 - 35.0% 150 - 200 Me      ; 5.0 - 40.0% 200 Me or more      ; 5.0 - 30.0%
Claim 5
Dependent Claim 39 words
A scrubbing agent according to Claim 1 or 2, wherein said scrubbing agent has a pH which is adjusted in the range of from neutrality to weak acidity with the use of one of organic acid and fatty acid.
Claim 6
Dependent Claim 37 words
A scrubbing agent according to Claim 3, wherein said scrubbing agent has a pH which is adjusted in the range of from neutrality to weak acidity with the use of one of organic acid and fatty acid.
Claim 7
Dependent Claim 48 words
A process for producing a scrubbing agent containing calcite as the main component, comprising: the crushing step of crushing glacial limestone; and the fractionating step of subjecting said glacial limestone in said crushing step to air fractionation to extract a fractionated portion containing calcite as the main component.
Claim 8
Dependent Claim 48 words
A process for producing a scrubbing agent containing calcite as the main component, comprising: the crushing step of crushing glacial limestone; and the fractionating step of subjecting said glacial limestone in said crushing step to air fractionation to extract a fractionated portion containing calcite as the main component.
Claim 9
Dependent Claim 67 words
A process for producing a scrubbing agent containing calcite as the main component, comprising: the crushing step of crushing glacial limestone; the suspending step of suspending in water said glacial limestone crushed in said crushing step; the fractionating step of placing a suspension obtained in said suspending step in a stationary manner to collect supernatant liquid thus produced; and the drying step of drying said supernatant liquid.
Claim 10
Dependent Claim 67 words
A process for producing a scrubbing agent containing calcite as the main component, comprising: the crushing step of crushing glacial limestone; the suspending step of suspending in water said glacial limestone crushed in said crushing step; the fractionating step of placing a suspension obtained in said suspending step in a stationary manner to collect supernatant liquid thus produced; and the drying step of drying said supernatant liquid.
Claim 11
Dependent Claim 19 words
The process according to Claim 7, wherein stirring is performed in said suspending step for thirty to forty minutes.
Claim 12
Dependent Claim 26 words
The process according to Claim 7 or 8, wherein said suspension is placed in a stationary manner in said fractionating step for twenty to forty minutes.
Claim 13
Dependent Claim 22 words
The process according to Claim 7 or 8, wherein said suspending step and said fractionating step are repeated a plurality of times.
Claim 14
Dependent Claim 20 words
The process according to Claim 9, wherein said suspending step and said fractionating step are repeated a plurality of times.

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