GB2223025B - Polyurethane plug and method of making the same - Google Patents

Polyurethane plug and method of making the same

Info

Publication number
GB2223025B
GB2223025B GB8822653A GB8822653A GB2223025B GB 2223025 B GB2223025 B GB 2223025B GB 8822653 A GB8822653 A GB 8822653A GB 8822653 A GB8822653 A GB 8822653A GB 2223025 B GB2223025 B GB 2223025B
Authority
GB
United Kingdom
Prior art keywords
making
same
polyurethane plug
polyurethane
plug
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
Application number
GB8822653A
Other versions
GB8822653D0 (en
GB2223025A (en
Inventor
Shengcai Zhao
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8822653A priority Critical patent/GB2223025B/en
Publication of GB8822653D0 publication Critical patent/GB8822653D0/en
Publication of GB2223025A publication Critical patent/GB2223025A/en
Application granted granted Critical
Publication of GB2223025B publication Critical patent/GB2223025B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C08G18/28—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
    • C08G18/4825—Polyethers containing two hydroxy groups
    • 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
    • A61F6/00—Contraceptive devices; Pessaries; Applicators therefor
    • A61F6/20—Vas deferens occluders; Fallopian occluders
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/04—Macromolecular materials
    • A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/166—Catalysts not provided for in the groups C08G18/18 - C08G18/26
    • C08G18/168—Organic compounds

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • Reproductive Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Polyurethanes Or Polyureas (AREA)
GB8822653A 1988-09-27 1988-09-27 Polyurethane plug and method of making the same Expired - Lifetime GB2223025B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8822653A GB2223025B (en) 1988-09-27 1988-09-27 Polyurethane plug and method of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8822653A GB2223025B (en) 1988-09-27 1988-09-27 Polyurethane plug and method of making the same

Publications (3)

Publication Number Publication Date
GB8822653D0 GB8822653D0 (en) 1988-11-02
GB2223025A GB2223025A (en) 1990-03-28
GB2223025B true GB2223025B (en) 1992-02-12

Family

ID=10644308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8822653A Expired - Lifetime GB2223025B (en) 1988-09-27 1988-09-27 Polyurethane plug and method of making the same

Country Status (1)

Country Link
GB (1) GB2223025B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5665822A (en) 1991-10-07 1997-09-09 Landec Corporation Thermoplastic Elastomers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5469867A (en) * 1992-09-02 1995-11-28 Landec Corporation Cast-in place thermoplastic channel occluder

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB894924A (en) * 1959-01-30 1962-04-26 Du Pont Improvements in or relating to curable polyurethane compositions
GB946360A (en) * 1960-11-08 1964-01-15 Us Rubber Co Paper making machines
GB1030080A (en) * 1964-12-23 1966-05-18 Du Pont Improvements in or relating to die arrangements
GB1031017A (en) * 1962-08-07 1966-05-25 Mobay Chemical Corp Polyurethane plastics
GB1044040A (en) * 1962-10-15 1966-09-28 Du Pont Improvements relating to polyurethane elastomers
GB1087366A (en) * 1964-10-28 1967-10-18 Kuhlmann Ets Elastomers suitable for application by spraying
GB1350243A (en) * 1970-07-06 1974-04-18 Firestone Tire & Rubber Co Tyres free from reinforcing elements
GB1436591A (en) * 1973-02-28 1976-05-19 Dunlop Ltd Curing of polyurethane prepolymers
GB1546595A (en) * 1976-04-07 1979-05-23 Firestone Tire & Rubber Co Polyurethane-urea elastomers
EP0153628A1 (en) * 1984-02-08 1985-09-04 Air Products And Chemicals, Inc. Process for producing polyurethane compositions having low hysteresis
EP0164523A1 (en) * 1984-05-14 1985-12-18 Air Products And Chemicals, Inc. Tires and wheels from low heat buildup polyurethane compositions

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB894924A (en) * 1959-01-30 1962-04-26 Du Pont Improvements in or relating to curable polyurethane compositions
GB946360A (en) * 1960-11-08 1964-01-15 Us Rubber Co Paper making machines
GB1031017A (en) * 1962-08-07 1966-05-25 Mobay Chemical Corp Polyurethane plastics
GB1044040A (en) * 1962-10-15 1966-09-28 Du Pont Improvements relating to polyurethane elastomers
GB1087366A (en) * 1964-10-28 1967-10-18 Kuhlmann Ets Elastomers suitable for application by spraying
GB1030080A (en) * 1964-12-23 1966-05-18 Du Pont Improvements in or relating to die arrangements
GB1350243A (en) * 1970-07-06 1974-04-18 Firestone Tire & Rubber Co Tyres free from reinforcing elements
GB1436591A (en) * 1973-02-28 1976-05-19 Dunlop Ltd Curing of polyurethane prepolymers
GB1546595A (en) * 1976-04-07 1979-05-23 Firestone Tire & Rubber Co Polyurethane-urea elastomers
EP0153628A1 (en) * 1984-02-08 1985-09-04 Air Products And Chemicals, Inc. Process for producing polyurethane compositions having low hysteresis
EP0164523A1 (en) * 1984-05-14 1985-12-18 Air Products And Chemicals, Inc. Tires and wheels from low heat buildup polyurethane compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783302A (en) 1990-12-07 1998-07-21 Landec Corporation Thermoplastic elastomers
US5665822A (en) 1991-10-07 1997-09-09 Landec Corporation Thermoplastic Elastomers

Also Published As

Publication number Publication date
GB8822653D0 (en) 1988-11-02
GB2223025A (en) 1990-03-28

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Legal Events

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

Effective date: 19920927