GB1234358A - - Google Patents
Info
- Publication number
- GB1234358A GB1234358A GB1234358DA GB1234358A GB 1234358 A GB1234358 A GB 1234358A GB 1234358D A GB1234358D A GB 1234358DA GB 1234358 A GB1234358 A GB 1234358A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collagen
- film
- dispersion
- bobbin
- solvent
- 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
- 102000008186 Collagen Human genes 0.000 abstract 12
- 108010035532 Collagen Proteins 0.000 abstract 12
- 229920001436 collagen Polymers 0.000 abstract 12
- 239000006185 dispersion Substances 0.000 abstract 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000004744 fabric Substances 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 238000001035 drying Methods 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- 239000004743 Polypropylene Substances 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 239000002612 dispersion medium Substances 0.000 abstract 1
- 239000000499 gel Substances 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 235000014655 lactic acid Nutrition 0.000 abstract 1
- 239000004310 lactic acid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- -1 polypropylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 1
Classifications
-
- 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
- A61L15/32—Proteins, polypeptides; Degradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
- A61L15/325—Collagen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/74—Natural macromolecular material or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0018—Collagen fibres or collagen on fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Treatment Of Fiber Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
1,234,358. Making flat collagen films continuously. CENTRE TECHNIQUE DU CUIR. 17 Oct., 1969 [27 Nov., 1968], No. 51076/69. Heading B5B. [Also in Division B2] As shown in Fig. 1, an apparatus for making a flat collagen film in a continuous manner comprises a dispersion reactor 1 adapted for the production of solutions, dispersions or gels of collagen having a concentration of 1 to 5% in an aqueous medium or 1 to 15% in an organic solvent and for the aerating or deaerating of the dispersions or solutions formed. The dispersions or solutions may be matured for several hours alternately in vessels 2 from which they are metered by a gear pump 3 (driven by a constant speed motor provided with means for adjusting its speed to any desired constant value) through a wire gauze filter 4 to the extrusion die 5 having a straight slot extrusion orifice. The collagen dispersion or solution is extruded through the slot die 5 to form a thin layer on a travelling endless belt 7 of hydrophobic material such as polypropylene or polyvinyl chloride. The layer of collagen is carried by the band 7 through drying tunnels 11 and 11a when the solvent or the dispersion medium (whether water or a volatile organic solvent) is evaporated at a temperature within the range 30 to 40 C. The collagen of the film is coagulated in the form of fibrils or of fibres by neutralization with an alkali or by treatment with a saline solution, or a solution of an alkali in a solvent having a strong affinity for water. The coagulation of the collagen is preferably effected by directing a stream of gaseous ammonia on to the film by means of a nozzle 6 having a slot-shaped aperture. Alternatively, the collagen film may be neutralized and coagulated by passing the travelling band 7 through a low boiling point dehydration solvent such as acetone or methanol containing an organic or inorganic alkaline compound. The apparatus may advantageously comprise a device for the impregnation or coating of webs of woven and non-woven textile fabrics with a collagen film. The fabric web is supplied from a feed bobbin 9a or 9b and when the bobbin 9a is used, the collagen film may be drawn into the fabric web by means of a vacuum chamber 10. After leaving the drying tunnel 11a, the collagen film or the collagen-impregnated fabric web is stripped from the travelling band 7 and wound up at constant tension on the bobbin 27 by the device 13. In an example, a suspension of 300 grams of dry collagen fibres in 10 litres of water is deaerated in the reactor 1 by stirring under reduced pressure, a solution of 75 grams of lactic acid and 90 grams of glycerol in 4¢ litres of water is added and the mixture stirred under reduced pressure for 10 minutes. The air-free dispersion thus obtained is filtered and stored for 24 hours in one of the vessels 2. The dispersion is then metered by the gear pump 3 to the slot die 5 and delivered on to the travelling belt 7 to form a film web which is coagulated by gaseous ammonia delivered by the nozzle 6 and is thereafter passed through the drying tunnels 11 and 11a, stripped from the belt 7 and wound up on the bobbin 27. The film thereby formed is translucent and 0À03 mm. thick.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR69050673 | 1968-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1234358A true GB1234358A (en) | 1971-06-03 |
Family
ID=9695785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1234358D Expired GB1234358A (en) | 1968-11-27 | 1969-10-17 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS50751B1 (en) |
| CA (1) | CA932113A (en) |
| CH (1) | CH503772A (en) |
| CS (1) | CS169795B2 (en) |
| FR (1) | FR1596790A (en) |
| GB (1) | GB1234358A (en) |
| NL (1) | NL6915027A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0470399A2 (en) * | 1990-08-08 | 1992-02-12 | Showa Denko Kabushiki Kaisha | Process for producing collagen powder |
| US7429349B2 (en) | 2001-08-21 | 2008-09-30 | Naturin Gmbh And Co. | Method of perforating a flat film based on collagen |
| EP3167910A1 (en) * | 2015-11-10 | 2017-05-17 | MedSkin Solutions Dr. Suwelack AG | Method for producing a biocompatible matrix with targeted biomechanical properties |
| EP3167912A1 (en) * | 2015-11-10 | 2017-05-17 | MedSkin Solutions Dr. Suwelack AG | Method for producing a biocompatible matrix with targeted structural design |
| WO2018067532A1 (en) * | 2016-10-06 | 2018-04-12 | 3M Innovative Properties Company | Methods of making fibrin compositions and articles |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1602340A (en) * | 1977-06-09 | 1981-11-11 | Pikok Ind Trading Co | Skin dressings |
| AT371723B (en) * | 1978-11-15 | 1983-07-25 | Max Planck Gesellschaft | TRANSPARENT LIQUID BANDAGE MATERIAL, AND METHOD FOR THE PRODUCTION THEREOF |
| FR2526314A1 (en) * | 1982-05-07 | 1983-11-10 | Sanofi Sa | PREPARATION BASED ON LYOPHILIZED-BORN COLLAGEN AND ITS USE IN THE COSMETIC FIELD |
| FR2559780B1 (en) | 1984-02-21 | 1990-05-04 | Tech Cuir Centre | IMPLANTABLE BIOCOMPATIBLE COLLAGEN-BASED SYSTEMS FOR CELL STORAGE AND / OR CULTURE AND / OR CONTROLLED RELEASE OF ACTIVE INGREDIENTS |
| NL8802225A (en) * | 1988-09-09 | 1990-04-02 | Stork Friesland Bv | MEMBRANE ASSEMBLY. |
| US5433859A (en) * | 1993-07-12 | 1995-07-18 | Pall Corporation | Supported microporous filtration membrane and method of using same |
-
1968
- 1968-11-27 FR FR69050673A patent/FR1596790A/fr not_active Expired
-
1969
- 1969-08-21 CH CH1268369A patent/CH503772A/en not_active IP Right Cessation
- 1969-10-03 NL NL6915027A patent/NL6915027A/xx unknown
- 1969-10-17 GB GB1234358D patent/GB1234358A/en not_active Expired
- 1969-10-31 CA CA066405A patent/CA932113A/en not_active Expired
- 1969-11-03 CS CS7243A patent/CS169795B2/cs unknown
- 1969-11-27 JP JP44094709A patent/JPS50751B1/ja active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0470399A2 (en) * | 1990-08-08 | 1992-02-12 | Showa Denko Kabushiki Kaisha | Process for producing collagen powder |
| EP0470399A3 (en) * | 1990-08-08 | 1992-04-22 | Showa Denko Kabushiki Kaisha | Process for producing collagen powder |
| US7429349B2 (en) | 2001-08-21 | 2008-09-30 | Naturin Gmbh And Co. | Method of perforating a flat film based on collagen |
| EP3167910A1 (en) * | 2015-11-10 | 2017-05-17 | MedSkin Solutions Dr. Suwelack AG | Method for producing a biocompatible matrix with targeted biomechanical properties |
| EP3167912A1 (en) * | 2015-11-10 | 2017-05-17 | MedSkin Solutions Dr. Suwelack AG | Method for producing a biocompatible matrix with targeted structural design |
| WO2017081070A1 (en) * | 2015-11-10 | 2017-05-18 | Medskin Solutions Dr. Suwelack Ag | Method for producing a biocompatible matrix with targeted biomechanical properties |
| WO2017081067A1 (en) * | 2015-11-10 | 2017-05-18 | Medskin Solutions Dr. Suwelack Ag | Method for producing a biocompatible matrix with targeted structural design |
| CN108367101A (en) * | 2015-11-10 | 2018-08-03 | 医疗美容解决方案祖韦拉克医生公司 | Method for producing the biocompatible matrix with targeting structure design |
| US11369715B2 (en) | 2015-11-10 | 2022-06-28 | Medskin Solutions Dr. Suwelack Ag | Method for producing a biocompatible matrix with targeted structural design |
| WO2018067532A1 (en) * | 2016-10-06 | 2018-04-12 | 3M Innovative Properties Company | Methods of making fibrin compositions and articles |
Also Published As
| Publication number | Publication date |
|---|---|
| CA932113A (en) | 1973-08-21 |
| FR1596790A (en) | 1970-06-22 |
| JPS50751B1 (en) | 1975-01-11 |
| DE1945527B2 (en) | 1977-05-12 |
| CS169795B2 (en) | 1976-07-29 |
| CH503772A (en) | 1971-02-28 |
| DE1945527A1 (en) | 1970-06-18 |
| NL6915027A (en) | 1970-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |