GB1275773A - Process for finishing leather and synthetic leather substitutes - Google Patents

Process for finishing leather and synthetic leather substitutes

Info

Publication number
GB1275773A
GB1275773A GB4753869A GB4753869A GB1275773A GB 1275773 A GB1275773 A GB 1275773A GB 4753869 A GB4753869 A GB 4753869A GB 4753869 A GB4753869 A GB 4753869A GB 1275773 A GB1275773 A GB 1275773A
Authority
GB
United Kingdom
Prior art keywords
groups
comonomers
weight
polyol
polyisocyanate
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
GB4753869A
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.)
BASF SE
Original Assignee
Badische Anilin and Sodafabrik AG
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 Badische Anilin and Sodafabrik AG filed Critical Badische Anilin and Sodafabrik AG
Publication of GB1275773A publication Critical patent/GB1275773A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C11/00—Surface finishing of leather
    • C14C11/003—Surface finishing of leather using macromolecular compounds
    • C14C11/006—Surface finishing of leather using macromolecular compounds using polymeric products of isocyanates (or isothiocyanates) with compounds having active hydrogen
    • 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
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
    • C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
    • C08G18/6225—Polymers of esters of acrylic or methacrylic acid
    • 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
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6283—Polymers of nitrogen containing compounds having carbon-to-carbon double bonds
    • 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
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6287—Polymers of sulfur containing compounds having carbon-to-carbon double bonds
    • 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
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/794—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aromatic isocyanates or isothiocyanates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1275773 Finishing leather BADISCHE ANILIN-& SODA-FABRIK AG 26 Sept 1969 [28 Sept 1968] 47538/69 Heading B2E [Also in Division C3] Leather or synthetic leather substitute is finished with polyurethanes by applying a solution of polyol (1) and polyisocyanate (2) in an organic solvent which is inert to isocyanate groups, and cross linking the polyols and polyisocyanates during and after evaporation of the solvent, the polyol (1) being a copolymer containing hydroxy groups comprising as comonomers a) 4-20% by weight with reference to all comonomers of units of an ethylenically unsaturated copolymerizable compound bearing at least one hydroxy group, b) 8.0-96% by weight of units of an ethylenically unsaturated copolymerizable compound which bears groups which do not react with isocyanate groups, and the polyisocyanate (2) being a high molecular weight polyisocyanate which is derived from 2, 4-toluylene diisocyanate and contains cyanurate groups and toluylene groups. The polyol (1) may further comprise as comonomers up to 13% by weight of units of dyes bearing at least one ethylenically unsaturated copolymerizable group e.g. azo, anthraquinone, azo metal complex dyes. Many examples of dyes are given. Suitable comonomers (a) are monoacrylates of ethyleneglycol, propanediol and butanediol-1, 4- monomethacrylates of ethyleneglycol, propanediol and butanediol-1, 4, vinyl-thioglycol and monovinyl ether of butanediol-1, 4. Suitable comonomers (b) are 1-8C alkyl esters of acrylic acid and methacrylic acid, acrylonitrile, methacrylonitrile, styrene, methyl vinyl ether, isobutyl vinyl ether, vinyl chloride and vinylidene chloride. The copolymers may be obtained by conventional solution polymerization. The polyisocyanates may contain 8-18% by weight of free isocyanate groups, and may be added to a solution of the copolymer (1) in the form of an organic solvent solution. The polyol may be present in stoichiometric or in excess amount with reference to the free isocyanate groups in the polyisocyanate. Plasticizers, pigments, flow improvers, delustrants, and binders e.g. phenoplast resins, aminoplast resins, alkyd, epoxide resins may be added to the solutions. The finishes are applied by spraying, brushing or padding.
GB4753869A 1968-09-28 1969-09-26 Process for finishing leather and synthetic leather substitutes Expired GB1275773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681794263 DE1794263B2 (en) 1968-09-28 1968-09-28 METHOD OF FINISHING LEATHER OR SYNTHETIC LEATHER REPLACEMENT MATERIALS

Publications (1)

Publication Number Publication Date
GB1275773A true GB1275773A (en) 1972-05-24

Family

ID=5707930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4753869A Expired GB1275773A (en) 1968-09-28 1969-09-26 Process for finishing leather and synthetic leather substitutes

Country Status (5)

Country Link
BR (1) BR6912737D0 (en)
DE (1) DE1794263B2 (en)
ES (1) ES371962A1 (en)
FR (1) FR2020544A1 (en)
GB (1) GB1275773A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9406225U1 (en) * 1994-04-14 1994-08-11 Schaefer, Philipp, 30519 Hannover Full-grain natural leather
DE202006011724U1 (en) * 2006-07-31 2007-12-06 Schaefer, Philipp vehicle seat

Also Published As

Publication number Publication date
BR6912737D0 (en) 1973-03-13
DE1794263A1 (en) 1971-10-07
ES371962A1 (en) 1971-11-16
DE1794263B2 (en) 1973-09-06
FR2020544A1 (en) 1970-07-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees