GB2273296A - Polyurethane foams - Google Patents

Polyurethane foams

Info

Publication number
GB2273296A
GB2273296A GB9400982A GB9400982A GB2273296A GB 2273296 A GB2273296 A GB 2273296A GB 9400982 A GB9400982 A GB 9400982A GB 9400982 A GB9400982 A GB 9400982A GB 2273296 A GB2273296 A GB 2273296A
Authority
GB
United Kingdom
Prior art keywords
hydrophilic polyurethane
polyurethane foams
isocyanate prepolymer
polyurethane foam
devices
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.)
Granted
Application number
GB9400982A
Other versions
GB2273296B (en
GB9400982D0 (en
Inventor
Reilly Angela Noeleen O
Michael Francis Shelvey
Richard Milner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith and Nephew PLC
Original Assignee
Smith and Nephew PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Smith and Nephew PLC filed Critical Smith and Nephew PLC
Publication of GB9400982D0 publication Critical patent/GB9400982D0/en
Publication of GB2273296A publication Critical patent/GB2273296A/en
Application granted granted Critical
Publication of GB2273296B publication Critical patent/GB2273296B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
    • 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
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • 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
    • A61L15/425—Porous materials, e.g. foams or sponges
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805—Compounds having only one group containing active hydrogen
    • C08G18/2815—Monohydroxy compounds
    • C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene end groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Abstract

A hydrophilic polyurethane foam for use in first aid dressings which comprises residues from an aromatic isocyanate prepolymer and an aliphatic isocyanate prepolymer and in which at least one of said prepolymers contains residues from polyether polyol. A process for the formation of the hydrophilic polyurethane and absorptive devices of hydrophilic polyurethane foam such as wound dressings and sanitary devices.
GB9400982A 1991-08-20 1992-08-19 Polyurethane foams Expired - Fee Related GB2273296B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919117913A GB9117913D0 (en) 1991-08-20 1991-08-20 Polyurethane foams
PCT/GB1992/001527 WO1993004101A1 (en) 1991-08-20 1992-08-19 Polyurethane foams

Publications (3)

Publication Number Publication Date
GB9400982D0 GB9400982D0 (en) 1994-03-16
GB2273296A true GB2273296A (en) 1994-06-15
GB2273296B GB2273296B (en) 1995-05-24

Family

ID=10700213

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919117913A Pending GB9117913D0 (en) 1991-08-20 1991-08-20 Polyurethane foams
GB9400982A Expired - Fee Related GB2273296B (en) 1991-08-20 1992-08-19 Polyurethane foams

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919117913A Pending GB9117913D0 (en) 1991-08-20 1991-08-20 Polyurethane foams

Country Status (8)

Country Link
EP (1) EP0599932A1 (en)
JP (1) JPH06510312A (en)
AU (1) AU656997B2 (en)
CA (1) CA2114411A1 (en)
GB (2) GB9117913D0 (en)
MX (1) MX9204833A (en)
WO (1) WO1993004101A1 (en)
ZA (1) ZA926233B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328190A1 (en) * 1993-08-23 1995-03-02 Beiersdorf Ag Wound care articles with selective absorbency
MXPA03010562A (en) 2001-05-21 2004-03-02 Huntsman Intenat Llc Very soft polyurethane elastomer.
GB2459817B (en) 2007-03-13 2011-10-05 Avery Dennison Corp Foam compositions and articles including cyclodextrin crosslinked with polyurethane prepolymer and preparation thereof
EP2289959A1 (en) * 2009-08-29 2011-03-02 Bayer Material Science AG Hydrophilic aliphatic polyurethane foams
CN102574975A (en) * 2009-09-18 2012-07-11 旭硝子株式会社 Process for production of flexible polyurethane foam
FR2974004B1 (en) 2011-04-15 2014-05-02 Urgo Lab HYDROCELLULAR ABSORBENT DRESSING, ITS USES FOR THE TREATMENT OF CHRONIC AND ACUTE WOUNDS
FR2974005B1 (en) 2011-04-15 2014-05-02 Urgo Lab THIN ABSORBENT THIN ADHESIVE DRESSING, ITS USES FOR THE TREATMENT OF CHRONIC WOUNDS
BR112014000775A2 (en) 2011-07-14 2017-02-14 Smith & Nephew wound dressing and treatment method
FR3003463B1 (en) 2013-03-20 2015-04-10 Urgo Lab DRESSING HAVING AN ADHESIVE PERIPHERAL EDGE WITH AN INUTED ROUND
US9422394B2 (en) 2013-06-28 2016-08-23 Sabic Global Technologies B.V. Thermoplastic polyurethane and associated method and article
US9169368B2 (en) 2013-07-30 2015-10-27 Sabic Global Technologies B.V. Rigid foam and associated article
US9266997B2 (en) 2013-09-20 2016-02-23 Sabic Global Technologies B.V. Polyurethane foam and associated method and article
FR3056100B1 (en) 2016-09-20 2019-07-05 Urgo Recherche Innovation Et Developpement ABSORBENT DRESSING COMPRISING A HYDRODELITABLE SUPERABSORBENT NON-WOVEN
GB201818829D0 (en) 2018-11-19 2019-01-02 Smith & Nephew Absorbent component
GB201818824D0 (en) 2018-11-19 2019-01-02 Smith & Nephew Absorbent yarn
GB201912071D0 (en) 2019-08-22 2019-10-09 Smith & Nephew Wound dressing
GB201912076D0 (en) 2019-08-22 2019-10-09 Smith & Nephew Absorbent component
FR3133122B1 (en) 2022-03-03 2024-03-01 Urgo Rech Innovation Et Developpement Modular dressing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457203A (en) * 1966-04-25 1969-07-22 Olin Mathieson Hydrophilic polyurethane foams and a process for preparing them
US4292412A (en) * 1980-01-16 1981-09-29 W. R. Grace & Co. Hydrophilic, fabric softener foam compositions and method of making
US4439553A (en) * 1983-01-17 1984-03-27 W. R. Grace & Co. High molecular weight aromatic amine scavengers and method of use
EP0299112A1 (en) * 1987-07-15 1989-01-18 Proni Creations Inc. A force concentrating unitary fitting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH433740A (en) * 1964-10-14 1967-04-15 Elekal Societe Anonyme Process for manufacturing a hydrophilic polyurethane foam
EP0299122B1 (en) * 1987-07-17 1991-07-24 SMITH & NEPHEW plc Hydrophilic polyurethane foams

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457203A (en) * 1966-04-25 1969-07-22 Olin Mathieson Hydrophilic polyurethane foams and a process for preparing them
US4292412A (en) * 1980-01-16 1981-09-29 W. R. Grace & Co. Hydrophilic, fabric softener foam compositions and method of making
US4439553A (en) * 1983-01-17 1984-03-27 W. R. Grace & Co. High molecular weight aromatic amine scavengers and method of use
EP0299112A1 (en) * 1987-07-15 1989-01-18 Proni Creations Inc. A force concentrating unitary fitting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BE0670906 *

Also Published As

Publication number Publication date
EP0599932A1 (en) 1994-06-08
JPH06510312A (en) 1994-11-17
CA2114411A1 (en) 1993-03-04
GB2273296B (en) 1995-05-24
GB9400982D0 (en) 1994-03-16
MX9204833A (en) 1993-03-01
WO1993004101A1 (en) 1993-03-04
AU656997B2 (en) 1995-02-23
ZA926233B (en) 1994-03-18
GB9117913D0 (en) 1991-10-09
AU2440492A (en) 1993-03-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970819