GB1145200A - Microporous polyurethane sheet structures - Google Patents

Microporous polyurethane sheet structures

Info

Publication number
GB1145200A
GB1145200A GB2887867A GB2887867A GB1145200A GB 1145200 A GB1145200 A GB 1145200A GB 2887867 A GB2887867 A GB 2887867A GB 2887867 A GB2887867 A GB 2887867A GB 1145200 A GB1145200 A GB 1145200A
Authority
GB
United Kingdom
Prior art keywords
polyurethane
weight
microporous
solution
water
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
GB2887867A
Inventor
Bruno Zorn
Harald Oertel
Dieter Dieterich
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 GB1145200A publication Critical patent/GB1145200A/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
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • 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
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Abstract

1,145,200. Microporous polyurethane laminates. FARBENFABRIKEN BAYER A.G. 22 June, 1967 [22 June, 1966], No. 28878/67. Heading B5N. [Also in Divisions B2 and C3] Laminates may be produced by bonding a microporous polyurethane sheet material to various porous substrates such as leather and fabrics. The microporous polyurethane sheet material is produced by first forming a solution comprising (a) 90 to 70 parts by weight based on the dry substance of one or more polyurethane ureas which are free from NCO groups, suitably contained in a polar, water-soluble solvent and (b) 10 to 30 parts by weight of one or more high M.W. substantially linear cationic polyurethanes free from NCO groups and which contain 8 to 35% by weight of urethane groups and, if desired, also urea groups, and 0À5 to 2À0% by weight of quaternary ammonium nitrogen atoms, the cationic polyurethane being present in the form of an aqueous dispersion or colloidal solution which has a concentration such that the quantity of water introduced by it into the mixture so formed is less than 7% by weight added to (c) 200 to 2000 parts by weight of a water-soluble, polar solvent for (a) having a b.p. above 100‹ C., the viscosity of which solution is 1 to 30 minutes when measured in a Ford viscosimeter with 6 mm. outflow nozzle at 20‹ C., (d) coating the solution on to a non- porous substrate and allowing it to gel in moist air, dipping the whole into water to extract the solvent, drying and stripping the foil from the substrate. In an Example (la) a microporous polyurethane foil prepared by the above process was glued on to a piece of perforated leather and also on to a velveteen fabric using a mixture of polyurethane and polyisocyanate in ethyl acetate as adhesive. The top surface of the foil was dressed with several applications of a pigmented aqueous dispersion of a cationic polyurethane and was dried and pressed between each application. A product similar to leather in appearance and feel was obtained. The microporous layers may also be applied to wood, paper, cardboard, woven and non-woven textiles, metal and brickwork.
GB2887867A 1966-06-22 1967-06-22 Microporous polyurethane sheet structures Expired GB1145200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0049531 1966-06-22

Publications (1)

Publication Number Publication Date
GB1145200A true GB1145200A (en) 1969-03-12

Family

ID=7103094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2887867A Expired GB1145200A (en) 1966-06-22 1967-06-22 Microporous polyurethane sheet structures

Country Status (6)

Country Link
AT (1) AT285960B (en)
BE (1) BE700304A (en)
CH (1) CH482768A (en)
GB (1) GB1145200A (en)
NL (1) NL157034B (en)
SE (1) SE329724B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728542A (en) * 1985-06-19 1988-03-01 Bayer Aktiengesellschaft Ionically modified pur spreading pastes and their use
US4743470A (en) * 1985-03-02 1988-05-10 Bayer Aktiengesellschaft Spreading pastes containing polyurethane plastics and a process for the production of polyurethane coatings permeable to water vapor
US5177141A (en) * 1988-10-22 1993-01-05 Bayer Aktiengesellschaft Coating materials containing pur dispersions and solvents and their use for the preparation of water vapor permeable pur coatings
RU2443722C2 (en) * 2006-04-08 2012-02-27 Байер Матириальсайенс Аг Polyurethane-polyurea based microporous coating
WO2020010168A1 (en) * 2018-07-06 2020-01-09 The Lycra Company Llc Acid-dyeable spandex from cationic polyurethane

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4743470A (en) * 1985-03-02 1988-05-10 Bayer Aktiengesellschaft Spreading pastes containing polyurethane plastics and a process for the production of polyurethane coatings permeable to water vapor
US4728542A (en) * 1985-06-19 1988-03-01 Bayer Aktiengesellschaft Ionically modified pur spreading pastes and their use
US5177141A (en) * 1988-10-22 1993-01-05 Bayer Aktiengesellschaft Coating materials containing pur dispersions and solvents and their use for the preparation of water vapor permeable pur coatings
RU2443722C2 (en) * 2006-04-08 2012-02-27 Байер Матириальсайенс Аг Polyurethane-polyurea based microporous coating
WO2020010168A1 (en) * 2018-07-06 2020-01-09 The Lycra Company Llc Acid-dyeable spandex from cationic polyurethane
CN112352067A (en) * 2018-07-06 2021-02-09 莱卡英国有限公司 Acid-dyeable elastic fibers from cationic polyurethanes
US20210246578A1 (en) * 2018-07-06 2021-08-12 The Lycra Company Llc Acid-dyeable spandex from cationic polyurethane
TWI825116B (en) * 2018-07-06 2023-12-11 英商萊卡英國有限公司 Acid-dyeable spandex from cationic polyurethane

Also Published As

Publication number Publication date
NL6708653A (en) 1967-12-27
BE700304A (en) 1967-12-01
CH482768A (en) 1969-12-15
AT285960B (en) 1970-11-25
SE329724B (en) 1970-10-19
NL157034B (en) 1978-06-15

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