GB1401215A - Process for solid polyamino acid containing repeating aspartic and glutamic acid units - Google Patents

Process for solid polyamino acid containing repeating aspartic and glutamic acid units

Info

Publication number
GB1401215A
GB1401215A GB3147372A GB3147372A GB1401215A GB 1401215 A GB1401215 A GB 1401215A GB 3147372 A GB3147372 A GB 3147372A GB 3147372 A GB3147372 A GB 3147372A GB 1401215 A GB1401215 A GB 1401215A
Authority
GB
United Kingdom
Prior art keywords
membranes
glutamic acid
polymer
units
solid
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
Application number
GB3147372A
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.)
Ajinomoto Co Inc
Original Assignee
Ajinomoto Co Inc
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 Ajinomoto Co Inc filed Critical Ajinomoto Co Inc
Publication of GB1401215A publication Critical patent/GB1401215A/en
Expired 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
    • C08G18/71—Monoisocyanates or monoisothiocyanates
    • 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
    • A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
    • A61L17/06—At least partially resorbable materials
    • A61L17/10—At least partially resorbable materials containing macromolecular materials
    • 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
    • C08G18/60—Polyamides or polyester-amides
    • C08G18/603—Polyamides

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Veterinary Medicine (AREA)
  • Polymers & Plastics (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Surgery (AREA)
  • Hematology (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyamides (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • External Artificial Organs (AREA)
  • Materials For Medical Uses (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1401215 Semi permeable membrane AJINOMOTO CO INC 5 July 1972 [5 July 1971] 31473/72 Heading B1X [Also in Division C3] Solid poly(aminoacids) containing repeating aspatic or glutamic acid units are modified by treatment with a compound containing at least one isocyanate group. The poly(aminoacid) may be obtained by saponifying a polyaminoacid containing aspatic or glutamic acid omega-ester units and may be a homopolymer, a copolymer of the acid with its omega-ester or other amino acid units or a mixture of such homo- or co-polymer with a different polyamino acid. Various possible other acids are specified. The isocyanate may be aliphatic, aromatic or cycloaliphatic and may be a methane prepolymer. The solid polymer may be in the form of a film, tube, hollow filament, fibre, woven or knitted fabric, chip, flake, capsule or powder. The polymer may be blended with various other condensation, addition or natural polymers and may contain plasticisers, fillers or colouring agents. The treated polymers are stated to be useful for surgical membranes, artificial skin, artificial kidney membranes, surgical sutures, gauze and membranes for reverse osmosis or ultrafiltration. Ex-4 illustrates dialysis of egg albumen.
GB3147372A 1971-07-05 1972-07-05 Process for solid polyamino acid containing repeating aspartic and glutamic acid units Expired GB1401215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46049421A JPS5031905B1 (en) 1971-07-05 1971-07-05

Publications (1)

Publication Number Publication Date
GB1401215A true GB1401215A (en) 1975-07-16

Family

ID=12830598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3147372A Expired GB1401215A (en) 1971-07-05 1972-07-05 Process for solid polyamino acid containing repeating aspartic and glutamic acid units

Country Status (5)

Country Link
JP (1) JPS5031905B1 (en)
CH (1) CH569753A5 (en)
DE (1) DE2232972A1 (en)
FR (1) FR2150695B1 (en)
GB (1) GB1401215A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174097A (en) * 1985-03-22 1986-10-29 Ceskoslovenska Akademie Ved Polymeric stabilizer of water-in-oil emulsions

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH625702A5 (en) * 1977-01-18 1981-10-15 Delalande Sa
AU2698684A (en) * 1983-07-01 1985-02-07 Battelle Memorial Institute Polypeptide biodegradable et son utilisation pour le relargage progressif de medicaments
DE3406951A1 (en) * 1984-02-25 1985-08-29 Chemische Werke Hüls AG, 4370 Marl MOLDS BASED ON HIGH MOLECULAR POLY (ETHERESTERAMIDES)
JPS60226530A (en) * 1984-04-02 1985-11-11 バテル　メモリアル　インステイチユート Film forming polymerizable material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174097A (en) * 1985-03-22 1986-10-29 Ceskoslovenska Akademie Ved Polymeric stabilizer of water-in-oil emulsions

Also Published As

Publication number Publication date
FR2150695B1 (en) 1975-10-17
DE2232972A1 (en) 1973-01-18
JPS5031905B1 (en) 1975-10-16
CH569753A5 (en) 1975-11-28
FR2150695A1 (en) 1973-04-13

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Legal Events

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