GB1121770A - New leather substitute - Google Patents

New leather substitute

Info

Publication number
GB1121770A
GB1121770A GB41543/66A GB4154366A GB1121770A GB 1121770 A GB1121770 A GB 1121770A GB 41543/66 A GB41543/66 A GB 41543/66A GB 4154366 A GB4154366 A GB 4154366A GB 1121770 A GB1121770 A GB 1121770A
Authority
GB
United Kingdom
Prior art keywords
layer
polyurethane
film
impregnated
knitted
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
GB41543/66A
Inventor
Robert Bolliand
Claude Saligny
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
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 Rhodiaceta SA filed Critical Rhodiaceta SA
Publication of GB1121770A publication Critical patent/GB1121770A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • 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
    • 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
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
    • 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
    • D06N3/0025—Rubber threads; Elastomeric fibres; Stretchable, bulked or crimped fibres; Retractable, crimpable fibres; Shrinking or stretching of fibres during manufacture; Obliquely threaded fabrics
    • D06N3/0031—Retractable fibres; Shrinking of fibres during manufacture
    • 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
    • D06N3/0088—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 directly applying the resin
    • D06N3/0093—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 directly applying the resin by applying resin powders; by sintering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

A leather substitute comprises (a) a microporous block polyurethane film 0.1-1 mm. thick, adherent on one face, directly or indirectly, to (b) a shrunk, knitted textile layer made from a yarn containing both shrinkable fibres and fibres of shrinkage at least 5% less than that of the shrinkable fibres, impregnated with an elastomer of low modulus of elasticity. The shrinkable fibres make up 20-80% by weight of the knitted layer and have a shrinkage greater than 20%. The less shrinkable fibres have a shrinkage less than 10%. The shrinkable fibres may be of polyvinyl chloride, polyethylene terephthalate or isotactic polypropylene, and the less shrinkable fibres may be of a polyamide, polyacrylonitrile, or polyvinyl alcohol. The elastomer with which the knitted layer is impregnated is preferably the same block polyurethane as that of which the film is made, and the layer is impregnated with 20-60% of its weight of elastomer. In examples: (1) the knitted layer is raised and cropped and immersed in a solution of the block polyurethane which is precipitated out and the layer dried; the raised faces are then sprayed with a solution of polyurethane elastomer and the film placed on the sprayed face; the film is prepared by coating by a doctor a cotton fabric with a layer of powdered polyurethane, passing through an oven and between two heated rollers, the polyurethane layer being subsequently stripped from the fabric: (2) Example 1 is followed except that the film is formed of a woven textile layer of polyamide-viscose fibre yarn and the combination of film and woven textile layer is laminated to the shrunk knitted layer: (3) the knitted layer is raised and cropped and a fabric of polyamide and rayon fibre is stuck to the cropped face: the combination is impregnated with a solution of polyurethane and excess liquid removed between rollers: the impregnated combination is curtain coated with a stronger solution of polyurethane, the polyurethane precipitated and the combination dried.
GB41543/66A 1965-09-17 1966-09-16 New leather substitute Expired GB1121770A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR31820A FR1456929A (en) 1965-09-17 1965-09-17 New leather substitute
FR44078A FR90012E (en) 1965-09-17 1965-12-28 New leather substitute

Publications (1)

Publication Number Publication Date
GB1121770A true GB1121770A (en) 1968-07-31

Family

ID=26166209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41543/66A Expired GB1121770A (en) 1965-09-17 1966-09-16 New leather substitute

Country Status (7)

Country Link
BE (1) BE687006A (en)
CH (1) CH469135A (en)
DE (1) DE1954937U (en)
ES (1) ES331338A1 (en)
FR (2) FR1456929A (en)
GB (1) GB1121770A (en)
NL (1) NL6612755A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399272A2 (en) * 1989-05-24 1990-11-28 BASF Aktiengesellschaft Process for preparing soft elastic polyurethane foils
DE4203307C1 (en) * 1992-02-06 1992-12-03 Fa. Carl Freudenberg, 6940 Weinheim, De

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775528A (en) * 1970-07-23 1973-11-27 Firestone Tire & Rubber Co Process of making a pneumatic tire
CA1018753A (en) * 1974-02-08 1977-10-11 Takeshi Nishida Suede-like artificial leathers or a method for manufacturing same
DE102009051867A1 (en) 2009-11-04 2011-05-05 H.R. Rathgeber Gmbh & Co. Kg Covering, in particular for sitting or lying furniture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399272A2 (en) * 1989-05-24 1990-11-28 BASF Aktiengesellschaft Process for preparing soft elastic polyurethane foils
EP0399272A3 (en) * 1989-05-24 1991-03-20 BASF Aktiengesellschaft Process for preparing soft elastic polyurethane foils
US5218058A (en) * 1989-05-24 1993-06-08 Basf Aktiengesellschaft Flexible elastic polyurethane films a process for their preparation and their use
DE4203307C1 (en) * 1992-02-06 1992-12-03 Fa. Carl Freudenberg, 6940 Weinheim, De
US5541277A (en) * 1992-02-06 1996-07-30 Firma Carl Freudenberg Thermoplastic polyurethane molding compound for manufacturing grained, sintered, plastic sheet

Also Published As

Publication number Publication date
NL6612755A (en) 1967-03-20
FR90012E (en) 1967-09-29
BE687006A (en) 1967-03-16
DE1954937U (en) 1967-02-09
CH469135A (en) 1969-02-28
ES331338A1 (en) 1967-07-01
FR1456929A (en) 1966-07-08

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