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 unitsInfo
- 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
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.
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)
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)
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 |
-
1971
- 1971-07-05 JP JP46049421A patent/JPS5031905B1/ja active Pending
-
1972
- 1972-07-04 CH CH1002672A patent/CH569753A5/xx not_active IP Right Cessation
- 1972-07-05 DE DE19722232972 patent/DE2232972A1/en active Pending
- 1972-07-05 GB GB3147372A patent/GB1401215A/en not_active Expired
- 1972-07-05 FR FR7224331A patent/FR2150695B1/fr not_active Expired
Cited By (1)
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 |