ABSORBENT SHEET MANUFACTURE; METHOD AND APPARATUS FOR MAKING COHESIVE SHEET FROM PARTICULATE SUBSTANTIALLY WATER INSOLUBLE ABSORBENT HYDROGEL FORMING POLYMER MATERIALS
A method and apparatus (1) for making a cohesive sheet from particulate substantially water insoluble, absorbent hydrogel-forming polymer materials. The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid m...
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| creator | BENSON, DOUGLAS HERRIN REZAI, EBRAHIM IWASAKI, TOSHIAKI LAHRMAN, FRANK HENRY KOLODESH, MICHAEL SULYA |
| description | A method and apparatus (1) for making a cohesive sheet from particulate substantially water insoluble, absorbent hydrogel-forming polymer materials. The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid mixture, which is a solution of water and a cross-linking agent for the polymers in the particulate material. The amount sprayed is sufficient to cause effective surface cross-linking of the particulate material after the sheet is cured. The layering and spraying steps can then be repeated a number of times if desired. Pressure is then applied to the particulate material by passing it through a pair of compaction rolls. The apparatus (1) comprises a conveyor (3), one or more feeders (5) for layering the dry absorbent gelling particles onto the conveyor, one or more sprayers (4) for spraying the particles on the conveyor with the liquid mixture and a pair of compaction rolls (6). |
| format | Patent |
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The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid mixture, which is a solution of water and a cross-linking agent for the polymers in the particulate material. The amount sprayed is sufficient to cause effective surface cross-linking of the particulate material after the sheet is cured. The layering and spraying steps can then be repeated a number of times if desired. Pressure is then applied to the particulate material by passing it through a pair of compaction rolls. The apparatus (1) comprises a conveyor (3), one or more feeders (5) for layering the dry absorbent gelling particles onto the conveyor, one or more sprayers (4) for spraying the particles on the conveyor with the liquid mixture and a pair of compaction rolls (6).</description><edition>6</edition><language>eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; BANDAGES, DRESSINGS OR ABSORBENT PADS ; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES ; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS ; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ; FILTERS IMPLANTABLE INTO BLOOD VESSELS ; FIRST-AID KITS ; FOMENTATION ; HUMAN NECESSITIES ; HYGIENE ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES ; MEDICAL OR VETERINARY SCIENCE ; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES ; PERFORMING OPERATIONS ; PROSTHESES ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; TREATMENT OR PROTECTION OF EYES OR EARS ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>1997</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970224&DB=EPODOC&CC=NZ&NR=256593A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970224&DB=EPODOC&CC=NZ&NR=256593A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BENSON, DOUGLAS HERRIN</creatorcontrib><creatorcontrib>REZAI, EBRAHIM</creatorcontrib><creatorcontrib>IWASAKI, TOSHIAKI</creatorcontrib><creatorcontrib>LAHRMAN, FRANK HENRY</creatorcontrib><creatorcontrib>KOLODESH, MICHAEL SULYA</creatorcontrib><title>ABSORBENT SHEET MANUFACTURE; METHOD AND APPARATUS FOR MAKING COHESIVE SHEET FROM PARTICULATE SUBSTANTIALLY WATER INSOLUBLE ABSORBENT HYDROGEL FORMING POLYMER MATERIALS</title><description>A method and apparatus (1) for making a cohesive sheet from particulate substantially water insoluble, absorbent hydrogel-forming polymer materials. The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid mixture, which is a solution of water and a cross-linking agent for the polymers in the particulate material. The amount sprayed is sufficient to cause effective surface cross-linking of the particulate material after the sheet is cured. The layering and spraying steps can then be repeated a number of times if desired. Pressure is then applied to the particulate material by passing it through a pair of compaction rolls. The apparatus (1) comprises a conveyor (3), one or more feeders (5) for layering the dry absorbent gelling particles onto the conveyor, one or more sprayers (4) for spraying the particles on the conveyor with the liquid mixture and a pair of compaction rolls (6).</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>BANDAGES, DRESSINGS OR ABSORBENT PADS</subject><subject>CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES</subject><subject>DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS</subject><subject>DISINFECTION, STERILISATION, OR DEODORISATION OF AIR</subject><subject>FILTERS IMPLANTABLE INTO BLOOD VESSELS</subject><subject>FIRST-AID KITS</subject><subject>FOMENTATION</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL</subject><subject>ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES</subject><subject>PERFORMING OPERATIONS</subject><subject>PROSTHESES</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OR PROTECTION OF EYES OR EARS</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFjU0KwjAQhbtxIeoVZC7gxlJBXE3r1ATzU5KJUjciEleihXonr2kKgksXw8Dj-94bZ28svXUlGQYviBg0mlBjxcHRBjSxsFtAk65p0CEHD7V1idpLs4PKCvLyQF-3dlZDwlhWQSGnOJSe0bBEpVo4psiBNN6qUCqC37Rot87uSA3deihurGo1DTtJSbafZqPb5d7H2fdPsnlNXIlF7J7n2HeXa3zE19mclsWqWOeY_wU-LltGng</recordid><startdate>19970224</startdate><enddate>19970224</enddate><creator>BENSON, DOUGLAS HERRIN</creator><creator>REZAI, EBRAHIM</creator><creator>IWASAKI, TOSHIAKI</creator><creator>LAHRMAN, FRANK HENRY</creator><creator>KOLODESH, MICHAEL SULYA</creator><scope>EVB</scope></search><sort><creationdate>19970224</creationdate><title>ABSORBENT SHEET MANUFACTURE; METHOD AND APPARATUS FOR MAKING COHESIVE SHEET FROM PARTICULATE SUBSTANTIALLY WATER INSOLUBLE ABSORBENT HYDROGEL FORMING POLYMER MATERIALS</title><author>BENSON, DOUGLAS HERRIN ; REZAI, EBRAHIM ; IWASAKI, TOSHIAKI ; LAHRMAN, FRANK HENRY ; KOLODESH, MICHAEL SULYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_NZ256593A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>BANDAGES, DRESSINGS OR ABSORBENT PADS</topic><topic>CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES</topic><topic>DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS</topic><topic>DISINFECTION, STERILISATION, OR DEODORISATION OF AIR</topic><topic>FILTERS IMPLANTABLE INTO BLOOD VESSELS</topic><topic>FIRST-AID KITS</topic><topic>FOMENTATION</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL</topic><topic>ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES</topic><topic>PERFORMING OPERATIONS</topic><topic>PROSTHESES</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OR PROTECTION OF EYES OR EARS</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>BENSON, DOUGLAS HERRIN</creatorcontrib><creatorcontrib>REZAI, EBRAHIM</creatorcontrib><creatorcontrib>IWASAKI, TOSHIAKI</creatorcontrib><creatorcontrib>LAHRMAN, FRANK HENRY</creatorcontrib><creatorcontrib>KOLODESH, MICHAEL SULYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BENSON, DOUGLAS HERRIN</au><au>REZAI, EBRAHIM</au><au>IWASAKI, TOSHIAKI</au><au>LAHRMAN, FRANK HENRY</au><au>KOLODESH, MICHAEL SULYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ABSORBENT SHEET MANUFACTURE; METHOD AND APPARATUS FOR MAKING COHESIVE SHEET FROM PARTICULATE SUBSTANTIALLY WATER INSOLUBLE ABSORBENT HYDROGEL FORMING POLYMER MATERIALS</title><date>1997-02-24</date><risdate>1997</risdate><abstract>A method and apparatus (1) for making a cohesive sheet from particulate substantially water insoluble, absorbent hydrogel-forming polymer materials. The method comprises the steps of continuously layering dry absorbent gelling particles onto a conveyor. The particles are then sprayed with a liquid mixture, which is a solution of water and a cross-linking agent for the polymers in the particulate material. The amount sprayed is sufficient to cause effective surface cross-linking of the particulate material after the sheet is cured. The layering and spraying steps can then be repeated a number of times if desired. Pressure is then applied to the particulate material by passing it through a pair of compaction rolls. The apparatus (1) comprises a conveyor (3), one or more feeders (5) for layering the dry absorbent gelling particles onto the conveyor, one or more sprayers (4) for spraying the particles on the conveyor with the liquid mixture and a pair of compaction rolls (6).</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PROSTHESES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | ABSORBENT SHEET MANUFACTURE; METHOD AND APPARATUS FOR MAKING COHESIVE SHEET FROM PARTICULATE SUBSTANTIALLY WATER INSOLUBLE ABSORBENT HYDROGEL FORMING POLYMER MATERIALS |
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