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GB1292326A - Method and apparatus for the preparation of collagen dispersions with a view to their applications - Google Patents

Method and apparatus for the preparation of collagen dispersions with a view to their applications

Info

Publication number
GB1292326A
GB1292326A GB5107569A GB5107569A GB1292326A GB 1292326 A GB1292326 A GB 1292326A GB 5107569 A GB5107569 A GB 5107569A GB 5107569 A GB5107569 A GB 5107569A GB 1292326 A GB1292326 A GB 1292326A
Authority
GB
United Kingdom
Prior art keywords
atmospheric pressure
dispersion
collagen
sub
suspension
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
GB5107569A
Inventor
Jean Gerard Pichon
Alexandre Bruno Piat
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.)
Centre Technique Cuir Chaussure Maroquinerie
Original Assignee
Centre Technique Cuir Chaussure Maroquinerie
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 Centre Technique Cuir Chaussure Maroquinerie filed Critical Centre Technique Cuir Chaussure Maroquinerie
Publication of GB1292326A publication Critical patent/GB1292326A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C13/0013—Chemical composition of synthetic sausage casings
    • A22C13/0016—Chemical composition of synthetic sausage casings based on proteins, e.g. collagen
    • 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
    • A61L17/08—At least partially resorbable materials of animal origin, e.g. catgut, collagen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09H—PREPARATION OF GLUE OR GELATINE
    • C09H5/00—Stabilisation of solutions of glue or gelatine
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2389/00—Characterised by the use of proteins; Derivatives thereof
    • C08J2389/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08J2389/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Vascular Medicine (AREA)
  • Food Science & Technology (AREA)
  • Dermatology (AREA)
  • Surgery (AREA)
  • Wood Science & Technology (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Artificial Filaments (AREA)

Abstract

1292326 Collagen CENTRE TECHNIQUE DU CUIR SA 17 Oct 1969 [27 Nov 1968] 51075/69 Heading C3H [Also in Division B1] A method for the preparation of a dispersion of collagen (i.e. a normal or colloidal solution or gel) which may be air-free or aerated, comprises preparing a suspension of collagen fibres in water or in an organic medium, creating a subatmospheric pressure in a treatment chamber of a dispersion apparatus having stirring means, the suspension being introduced into the treatment chamber by means of the pressure difference between the sub-atmospheric pressure created and atmospheric pressure, maintaining the sub-atmospheric pressure or providing a different pressure within the treatment chamber, and transforming the suspension into a dispersion by stirring and controlled acidification by means of a mineral or organic acid. If the transformation is effected under sub-atmospheric pressure, a substantially air-free dispersion is obtained, if it is effected under super-atmospheric pressure, an aerated dispersion is obtained. The examples describe the preparation of air-free or aerated dispersions from collagen fibres derived from cowhide. In Fig. 2, which shows a reactor suitable for effecting the above method, sub-atmospheric pressure is created in chamber 1 by applying a vacuum through tube 15, collagen fibre suspension and acid are introduced through tube 14, and pressurized air, if required, is supplied through tube 16. Stirrer 7 is rotated by electric motor 12. Cover 4 is clamped to reactor 1 by device 6.
GB5107569A 1968-11-27 1969-10-17 Method and apparatus for the preparation of collagen dispersions with a view to their applications Expired GB1292326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69050672 1968-11-27

Publications (1)

Publication Number Publication Date
GB1292326A true GB1292326A (en) 1972-10-11

Family

ID=9695784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5107569A Expired GB1292326A (en) 1968-11-27 1969-10-17 Method and apparatus for the preparation of collagen dispersions with a view to their applications

Country Status (6)

Country Link
CH (1) CH501032A (en)
CS (1) CS171207B2 (en)
DE (1) DE1945072A1 (en)
FR (1) FR1596789A (en)
GB (1) GB1292326A (en)
NL (1) NL6914861A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002070594A2 (en) * 2001-01-25 2002-09-12 Nycomed Pharma As A method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge
US7052713B2 (en) 2001-02-13 2006-05-30 Nycomed Pharma As Carrier with solid fibrinogen and solid thrombin
US7098315B2 (en) 2001-01-25 2006-08-29 Nycomed Pharma As Method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
IT1249315B (en) * 1991-05-23 1995-02-22 Euroresearch Srl NON-POROUS COLLAGEN PLATE FOR THERAPEUTIC USE, METHOD AND EQUIPMENT TO OBTAIN IT

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002070594A2 (en) * 2001-01-25 2002-09-12 Nycomed Pharma As A method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge
WO2002070594A3 (en) * 2001-01-25 2003-01-03 Nycomed Pharma As A method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge
US7098315B2 (en) 2001-01-25 2006-08-29 Nycomed Pharma As Method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge
AU2002249528B2 (en) * 2001-01-25 2007-03-29 Topaz Investment As A method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge
KR100847417B1 (en) 2001-01-25 2008-07-18 니코메드 파르마 에이에스 A method of preparing a collagen sponge, a device for extracting a part of a collagen foam, and an elongated collagen sponge
CZ305120B6 (en) * 2001-01-25 2015-05-13 Takeda Nycomed As Process for preparing collagen sponge
US7052713B2 (en) 2001-02-13 2006-05-30 Nycomed Pharma As Carrier with solid fibrinogen and solid thrombin
US7399483B2 (en) 2001-02-13 2008-07-15 Nycomed Pharma As Carrier with solid fibrinogen and solid thrombin

Also Published As

Publication number Publication date
NL6914861A (en) 1970-05-29
CH501032A (en) 1970-12-31
FR1596789A (en) 1970-06-22
CS171207B2 (en) 1976-10-29
DE1945072A1 (en) 1970-06-11

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years