JPH0367712B2 - - Google Patents
Info
- Publication number
- JPH0367712B2 JPH0367712B2 JP56501802A JP50180281A JPH0367712B2 JP H0367712 B2 JPH0367712 B2 JP H0367712B2 JP 56501802 A JP56501802 A JP 56501802A JP 50180281 A JP50180281 A JP 50180281A JP H0367712 B2 JPH0367712 B2 JP H0367712B2
- Authority
- JP
- Japan
- Prior art keywords
- absorbent
- web
- polymer
- aqueous solution
- fibrous substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920000642 polymer Polymers 0.000 description 27
- 239000000758 substrate Substances 0.000 description 26
- 239000002250 absorbent Substances 0.000 description 25
- 230000002745 absorbent Effects 0.000 description 25
- 239000007864 aqueous solution Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 19
- 239000000243 solution Substances 0.000 description 15
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 14
- 229940047670 sodium acrylate Drugs 0.000 description 14
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical class COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 12
- 229910052783 alkali metal Inorganic materials 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 11
- -1 alkali metal salts Chemical class 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 8
- 150000003863 ammonium salts Chemical class 0.000 description 8
- 239000004744 fabric Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 230000005865 ionizing radiation Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 8
- 239000000203 mixture Chemical class 0.000 description 7
- 239000004745 nonwoven fabric Substances 0.000 description 7
- 229920000247 superabsorbent polymer Polymers 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 6
- 206010021639 Incontinence Diseases 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 5
- HCLJOFJIQIJXHS-UHFFFAOYSA-N 2-[2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOCCOC(=O)C=C HCLJOFJIQIJXHS-UHFFFAOYSA-N 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 3
- 229940048053 acrylate Drugs 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000002964 rayon Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 125000004386 diacrylate group Chemical group 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000007759 kiss coating Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- ZUBIJGNKOJGGCI-UHFFFAOYSA-M potassium;prop-2-enoate Chemical class [K+].[O-]C(=O)C=C ZUBIJGNKOJGGCI-UHFFFAOYSA-M 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/20—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
- A61F2013/530583—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form
- A61F2013/530635—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form in thin film
- A61F2013/530642—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form in thin film being cross-linked or polymerised in situ
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14921580A | 1980-05-12 | 1980-05-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57500546A JPS57500546A (US07875362-20110125-C00021.png) | 1982-04-01 |
| JPH0367712B2 true JPH0367712B2 (US07875362-20110125-C00021.png) | 1991-10-23 |
Family
ID=22529269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56501802A Expired - Lifetime JPH0367712B2 (US07875362-20110125-C00021.png) | 1980-05-12 | 1981-05-06 |
Country Status (10)
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4340057A (en) * | 1980-12-24 | 1982-07-20 | S. C. Johnson & Son, Inc. | Radiation induced graft polymerization |
| US4461621A (en) * | 1981-10-19 | 1984-07-24 | Colgate-Palmolive Company | Disposable diaper with polymer coating |
| US4443492A (en) * | 1983-04-18 | 1984-04-17 | Personal Products Company | Rate of absorbency of substrates containing in-situ polymerized monomers |
| JPS62170246A (ja) * | 1986-01-20 | 1987-07-27 | ユニ・チヤ−ム株式会社 | 吸収性衛生物品の吸収体 |
| JPS62170247A (ja) * | 1986-01-20 | 1987-07-27 | ユニ・チヤ−ム株式会社 | 吸収性衛生物品の吸収体 |
| JPS63260907A (ja) * | 1987-04-17 | 1988-10-27 | Mitsubishi Petrochem Co Ltd | 高吸水性ポリマ−の製造法 |
| JPH0764896B2 (ja) * | 1987-04-17 | 1995-07-12 | 三菱化学株式会社 | 吸水性複合材料の製造法 |
| US4808637A (en) * | 1987-05-14 | 1989-02-28 | Johnson & Johnson Patient Care, Inc. | Superabsorbent composition and process |
| WO1991013919A1 (en) * | 1990-03-08 | 1991-09-19 | Dsm N.V. | Radiation-curable liquid composition |
| AU697229B2 (en) * | 1993-11-17 | 1998-10-01 | Procter & Gamble Company, The | Corrugated capillary substrate having selectively disposed discrete parts of osmotic absorbent material |
| TW264430B (US07875362-20110125-C00021.png) | 1993-11-18 | 1995-12-01 | Procter & Gamble | |
| US6022610A (en) * | 1993-11-18 | 2000-02-08 | The Procter & Gamble Company | Deposition of osmotic absorbent onto a capillary substrate without deleterious interfiber penetration and absorbent structures produced thereby |
| WO1996023024A1 (en) * | 1995-01-23 | 1996-08-01 | Blydenstein-Willink N.V. | Substrate with super-absorbent material, method for manufacture thereof and use |
| NL1000572C2 (en) * | 1995-01-23 | 1996-07-23 | Willink Blydenstein Nv | Super-absorbent material on or in a substrate for cable sheathing |
| US5853867A (en) * | 1995-09-14 | 1998-12-29 | Nippon Shokubai Co., Ltd. | Absorbent composite, method for production thereof, and absorbent article |
| US5840403A (en) * | 1996-06-14 | 1998-11-24 | The Procter & Gamble Company | Multi-elevational tissue paper containing selectively disposed chemical papermaking additive |
| US6417425B1 (en) | 2000-02-01 | 2002-07-09 | Basf Corporation | Absorbent article and process for preparing an absorbent article |
| US7189888B2 (en) | 2001-12-21 | 2007-03-13 | Kimberly-Clark Worldwide, Inc. | Nonabsorbent surge layer having discrete regions of superabsorbent and method for making |
| JP4077204B2 (ja) * | 2002-01-25 | 2008-04-16 | 大王製紙株式会社 | 吸水性複合体の製造方法および吸水性複合体 |
| US7355091B2 (en) | 2002-09-18 | 2008-04-08 | Kimberly-Clark Worldwide, Inc. | Elastomeric nonwoven with attached superabsorbent polymer |
| US7338625B2 (en) | 2002-09-18 | 2008-03-04 | Kimberly-Clark Worldwide, Inc. | Methods of restoring elasticity after stiffening treatments |
| US20040054342A1 (en) * | 2002-09-18 | 2004-03-18 | Newbill Vincent B. | Absorbent articles having a superabsorbent retention web |
| US6939492B2 (en) | 2002-12-26 | 2005-09-06 | Kimberly-Clark Worldwide, Inc. | Method for making fibrous web materials |
| JP4545448B2 (ja) * | 2003-01-27 | 2010-09-15 | 株式会社日本触媒 | 吸水性成形体の製造方法 |
| EP1504772A1 (en) | 2003-08-06 | 2005-02-09 | The Procter & Gamble Company | Superabsorbent polymers having radiation activable surface cross-linkers and method of making them |
| US8080705B2 (en) | 2004-07-28 | 2011-12-20 | The Procter & Gamble Company | Superabsorbent polymers comprising direct covalent bonds between polymer chain segments and method of making them |
| EP1669394A1 (en) | 2004-12-10 | 2006-06-14 | The Procter & Gamble Company | Superabsorbent polymer particles with improved surface cross-linking and hydrophilicity and method of making them |
| US7745507B2 (en) | 2006-04-10 | 2010-06-29 | The Procter & Gamble Company | Absorbent member comprising a modified water absorbent resin |
| WO2008102322A2 (en) | 2007-02-22 | 2008-08-28 | The Procter & Gamble Company | Method of surface treating particulate material using electromagnetic radiation |
| JP5263752B2 (ja) * | 2007-09-13 | 2013-08-14 | 独立行政法人産業技術総合研究所 | 繊維又は繊維製品の改質方法とその装置 |
| DE102013003755A1 (de) * | 2013-03-06 | 2014-09-11 | Carl Freudenberg Kg | Belüftungseinsatz |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3090736A (en) * | 1960-01-27 | 1963-05-21 | Dow Chemical Co | Insoluble polyacrylic acid salts and method of preparing the same |
| US3686024A (en) * | 1970-02-24 | 1972-08-22 | Dow Chemical Co | Process of making a water-absorbent coated article and resultant product |
| FR2140323A1 (en) * | 1971-06-10 | 1973-01-19 | Vyzk Ustav Kozedelny | Modified wadding for surgical dressings - consisting of cotton and/or viscose fibres contg hydrophilising polymer |
| US3764502A (en) * | 1971-08-12 | 1973-10-09 | Ici America Inc | Water soluble sodium acrylate polymers of high molecular weight |
| US3948740A (en) * | 1973-05-04 | 1976-04-06 | Hercules Incorporated | Polymerization of water soluble monomers with radiation and chemical initiator |
| US4024040A (en) * | 1974-02-26 | 1977-05-17 | Hercules Incorporated | Polymerization of unsaturated monomers with radiation in the presence of salts |
| US4008353A (en) * | 1974-03-13 | 1977-02-15 | The Dow Chemical Company | Water swellable articles |
| US3901236A (en) * | 1974-07-29 | 1975-08-26 | Union Carbide Corp | Disposable absorbent articles containing hydrogel composites having improved fluid absorption efficiencies and processes for preparation |
| GB1563697A (en) * | 1975-08-22 | 1980-03-26 | Unilever Ltd | Liquid absorption devices |
| US4036588A (en) * | 1976-03-09 | 1977-07-19 | Research Corporation | Method of increasing the water absorption of cellulose-containing materials |
| US4192727A (en) * | 1976-08-24 | 1980-03-11 | Union Carbide Corporation | Polyelectrolyte hydrogels and methods of their preparation |
| JPS5355260A (en) * | 1976-10-26 | 1978-05-19 | Kao Corp | Absorber |
-
1981
- 1981-05-06 WO PCT/US1981/000601 patent/WO1981003274A1/en unknown
- 1981-05-06 JP JP56501802A patent/JPH0367712B2/ja not_active Expired - Lifetime
- 1981-05-06 BR BR8108591A patent/BR8108591A/pt not_active IP Right Cessation
- 1981-05-06 AU AU71759/81A patent/AU543970B2/en not_active Expired
- 1981-05-08 CA CA000377193A patent/CA1163599A/en not_active Expired
- 1981-05-11 EP EP81302086A patent/EP0040087B1/en not_active Expired
- 1981-05-11 ZA ZA00813131A patent/ZA813131B/xx unknown
- 1981-05-11 DE DE8181302086T patent/DE3165831D1/de not_active Expired
-
1984
- 1984-12-28 SG SG928/84A patent/SG92884G/en unknown
-
1985
- 1985-04-11 HK HK291/85A patent/HK29185A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU543970B2 (en) | 1985-05-09 |
| EP0040087A3 (en) | 1982-03-31 |
| EP0040087A2 (en) | 1981-11-18 |
| SG92884G (en) | 1985-06-14 |
| ZA813131B (en) | 1982-12-29 |
| AU7175981A (en) | 1981-12-07 |
| DE3165831D1 (en) | 1984-10-11 |
| HK29185A (en) | 1985-04-19 |
| CA1163599A (en) | 1984-03-13 |
| WO1981003274A1 (en) | 1981-11-26 |
| JPS57500546A (US07875362-20110125-C00021.png) | 1982-04-01 |
| BR8108591A (pt) | 1982-04-06 |
| EP0040087B1 (en) | 1984-09-05 |
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