EP0278601A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Absorbent composite
Assignee: Kao Corp
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Filing: 1988-01-19
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Granted: —
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Expires: 2008-01-19
Abstract
Abstract A liquid-absorbent composite comprises (a) a water-absorbent polymer, (b) a water-insoluble inorganic material and (c) a water-insoluble hydrophilic fibrous material at a weight ratio between (a), (b) and (c) in the range of 100 : 5-1200 : 5-1200. It is very useful as the absorbent component for a sanitary napkin and a medical pad.
Inventors
- 👤 Takatoshi Kobayashi
- 👤 Yukihiro Nakano
- 👤 Zeiwa Meiwa
- 👤 Minoru Nakanishi
- 👤 Tadashi Matsui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 15:02
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61L; A61L15/00; A61L15/16; A61L15/18; A61L15/42; A61L15/60; A61F2013/530481; A61F2013/530671; A61F2013/5307; A61F13/84; A61F13/8405; A61F2013/8408; A61F2013/8423; A61F2013/8488; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2905; Y10T428/2907; Y10T428/2913; Y10T428/2927; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2973; Y10T428/2978; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/673
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
38 words
A liquid-absorbent composite which comprises (a) a water-absorbent polymer, (b) a water-insoluble inorganic material and (c) a water-insoluble hydrophilic fibrous material at a weight ratio (a) : (b) : (c) in the range 100 : 5-1200 : 5-1200.
Claim 2
Dependent Claim
38 words
A liquid-absorbent composite which comprises (a) a water-absorbent polymer, (b) a water-insoluble inorganic material and (c) a water-insoluble hydrophilic fibrous material at a weight ratio (a) : (b) : (c) in the range 100 : 5-1200 : 5-1200.
Claim 3
Dependent Claim
18 words
A composite as claimed in Claim 1, which has a bulk specific gravity of 0.03 to 0.7 g/cc.
Claim 4
Dependent Claim
39 words
A composite as claimed in Claim 1, in which the polymer (a) is a polymer of a water-soluble, ethylenically unsaturated monomer or a crosslinked product thereof, including acrylic acid or a salt of acrylic acid as the major component.
Claim 5
Dependent Claim
36 words
A composite as claimed in Claim 1, in which the inorganic material (b) is selected from the group consisting of alumina, silica, zeolite, a clay of the montmorillonite group and a clay of the kaolinite group.
Claim 6
Dependent Claim
18 words
A composite as claimed in Claim 1, in which the fibrous material (c) is cellulose, natural or artificial.
Claim 7
Dependent Claim
13 words
An absorbent article which comprises the absorbent composite as defined in Claim 1.
Claim 8
Dependent Claim
45 words
A process for manufacturing the absorbent composite as defined in Claim 1, which comprises the step of mixing (a), (b) and (c) with one another in the presence of 70 to 3000 parts by weight, based on 100 parts by weight of (a), of water.
Claim 9
Dependent Claim
16 words
A process as claimed in Claim 7, which further comprises the step of drying the mixture.
References Cited (Backward Citations)
No citation records indexed.
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