GB1214773A - Process for treating sheet structures with aqueous polyurethane dispersions and colloidal solutions - Google Patents

Process for treating sheet structures with aqueous polyurethane dispersions and colloidal solutions

Info

Publication number
GB1214773A
GB1214773A GB1993569A GB1993569A GB1214773A GB 1214773 A GB1214773 A GB 1214773A GB 1993569 A GB1993569 A GB 1993569A GB 1993569 A GB1993569 A GB 1993569A GB 1214773 A GB1214773 A GB 1214773A
Authority
GB
United Kingdom
Prior art keywords
polyurethane
hardener
parts
methylol
coating
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
GB1993569A
Inventor
Bruno Zorn
Dieter Dieterich
Karl Heinz Kowalewlki
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1214773A publication Critical patent/GB1214773A/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
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
    • C08G18/0814—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups containing ammonium groups or groups forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Textile Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

1,214,773. Cationic polyurethane coatings. FARBENFABRIKEN BAYER A.G. 18 April, 1969 [3 May, 1968], No. 19935/69. Heading B2E. [Also in Division C3] Substrates such as leather or synthetic leather are coated by doctor blade application, spraying, pouring or printing with an aqueous dispersion of a cationic polyurethane and a hardener which comprises an aqueous solution of either a methylol melamine or etherified methylol melamine having an average of 3 methylol or methylol alkyl ether groups, the polyurethane hardener ratio being between 4:1 to 1:1 by wt. The polyurethane is hardened under acidic conditions and the coating may be dried at 80-160‹C. The polyurethane dispersion may contain 30-65% wt. of solids, the particles being between 50 and 1000 mÁ in size. The cationic polyurethane may contain 0.1-1.5% quaternary ammonium groups. The hardener may be tri-, tetra-, penta- or hexamethylol melamine or mixtures thereof which may be etherified with at least 3 mols of a lower, monohydric aliphatic alcohol, such as ethanol or methanol. The acidic conditions may be produced by the addition of acids or compounds which are acid in solution and examples of both type are specified. In an embodiment, a first coating comprising 30-40 parts hardener per 100 parts of polyurethane is followed by a second coating comprising 40-60 parts of hardener per 100 parts of polyurethane. The coatings may be finished by ironing, pressing, rolling or embossing.
GB1993569A 1968-05-03 1969-04-18 Process for treating sheet structures with aqueous polyurethane dispersions and colloidal solutions Expired GB1214773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681769302 DE1769302A1 (en) 1968-05-03 1968-05-03 Process for treating flat structures with aqueous polyurethane dispersions

Publications (1)

Publication Number Publication Date
GB1214773A true GB1214773A (en) 1970-12-02

Family

ID=5700082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1993569A Expired GB1214773A (en) 1968-05-03 1969-04-18 Process for treating sheet structures with aqueous polyurethane dispersions and colloidal solutions

Country Status (6)

Country Link
AT (1) AT291185B (en)
BE (1) BE732449A (en)
DE (1) DE1769302A1 (en)
FR (1) FR2007794A1 (en)
GB (1) GB1214773A (en)
NL (1) NL6906684A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601951A (en) * 1981-05-04 1986-07-22 Steon Company Impregnation of leather with polyurethane dispersions
WO2010012400A2 (en) * 2008-07-29 2010-02-04 Bayer Materialscience Ag Cationic polyurethane dispersion adhesives
CN110591044A (en) * 2019-08-28 2019-12-20 浙江华峰合成树脂有限公司 High-physical-property low-fogging waterborne surface layer polyurethane resin and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1510953A (en) * 1976-02-28 1978-05-17 Bayer Ag Process for priming leather
DE3313237A1 (en) * 1983-04-13 1984-10-18 Bayer Ag, 5090 Leverkusen AQUEOUS, CROSSLINKABLE POLYURETHANE PREPARATIONS AND THEIR USE FOR THERMOACTIVE-FLOOR REVERSE COATING
CN100334296C (en) 2002-12-20 2007-08-29 陶氏环球技术公司 Process to make synthetic leather and synthetic leather made therefrom

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601951A (en) * 1981-05-04 1986-07-22 Steon Company Impregnation of leather with polyurethane dispersions
WO2010012400A2 (en) * 2008-07-29 2010-02-04 Bayer Materialscience Ag Cationic polyurethane dispersion adhesives
WO2010012400A3 (en) * 2008-07-29 2010-03-25 Bayer Materialscience Ag Cationic polyurethane dispersion adhesives
CN110591044A (en) * 2019-08-28 2019-12-20 浙江华峰合成树脂有限公司 High-physical-property low-fogging waterborne surface layer polyurethane resin and preparation method thereof
CN110591044B (en) * 2019-08-28 2022-01-14 浙江华峰合成树脂有限公司 High-physical-property low-fogging waterborne surface layer polyurethane resin and preparation method thereof

Also Published As

Publication number Publication date
BE732449A (en) 1969-10-16
DE1769302A1 (en) 1971-06-09
NL6906684A (en) 1969-11-05
AT291185B (en) 1971-07-12
FR2007794A1 (en) 1970-01-09

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Legal Events

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