FR2126932A1 - Polyurethane coatings - for use in making artificial leathers - Google Patents

Polyurethane coatings - for use in making artificial leathers

Info

Publication number
FR2126932A1
FR2126932A1 FR7102757A FR7102757A FR2126932A1 FR 2126932 A1 FR2126932 A1 FR 2126932A1 FR 7102757 A FR7102757 A FR 7102757A FR 7102757 A FR7102757 A FR 7102757A FR 2126932 A1 FR2126932 A1 FR 2126932A1
Authority
FR
France
Prior art keywords
prepolymer
pref
reacting
coating
artificial leathers
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.)
Granted
Application number
FR7102757A
Other languages
French (fr)
Other versions
FR2126932B1 (en
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.)
Naphtachimie SA
Original Assignee
Naphtachimie 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 Naphtachimie SA filed Critical Naphtachimie SA
Priority to FR7102757A priority Critical patent/FR2126932A1/en
Publication of FR2126932A1 publication Critical patent/FR2126932A1/en
Application granted granted Critical
Publication of FR2126932B1 publication Critical patent/FR2126932B1/fr
Granted legal-status Critical Current

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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane

Landscapes

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

Abstract

Coating compsns. are prepd. from polyurethane prepolymers, with isocyanate end gps., made by first reacting org. polyisocyanates with polyhydroxyl cpds., pref. bi- or tri-hydroxy polyols, polyethers or polyesters with a mean m.wt. 62-6000, to give an intermediate prepolymer, and then reacting this with a monohydroxy cpd. of m.wt. 200-6000. The wt. ratio of free isocyanate functions in the final prepolymer should be 2-10%, pref. about 6%. Artificial leathers are made by depositing a finishing varnish on a transfer support, such as a silicone-treated paper, coating the varnish film with the prepolymer and covering this with a textile support moistened with a hardener-catalyst for the prepolymer, and putting into a space contg. steam. A small amt. of water or porophore may be added to the prepolymer to cause a small amt. of expansion during hardening. The artificial leather obtd. has good flexibility and elasticity and is used in making clothing and automobile seats.
FR7102757A 1971-01-28 1971-01-28 Polyurethane coatings - for use in making artificial leathers Granted FR2126932A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7102757A FR2126932A1 (en) 1971-01-28 1971-01-28 Polyurethane coatings - for use in making artificial leathers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7102757A FR2126932A1 (en) 1971-01-28 1971-01-28 Polyurethane coatings - for use in making artificial leathers

Publications (2)

Publication Number Publication Date
FR2126932A1 true FR2126932A1 (en) 1972-10-13
FR2126932B1 FR2126932B1 (en) 1975-01-17

Family

ID=9070999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7102757A Granted FR2126932A1 (en) 1971-01-28 1971-01-28 Polyurethane coatings - for use in making artificial leathers

Country Status (1)

Country Link
FR (1) FR2126932A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1237936A (en) * 1958-10-28 1960-08-05 Du Pont Polyurethane sealant
GB1122077A (en) * 1965-08-24 1968-07-31 Wyandotte Chemicals Corp Polyurethane latices and their preparation
NL6910606A (en) * 1968-07-13 1970-01-15

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1237936A (en) * 1958-10-28 1960-08-05 Du Pont Polyurethane sealant
GB1122077A (en) * 1965-08-24 1968-07-31 Wyandotte Chemicals Corp Polyurethane latices and their preparation
NL6910606A (en) * 1968-07-13 1970-01-15

Also Published As

Publication number Publication date
FR2126932B1 (en) 1975-01-17

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse