GB1216925A - Process for the production of microporous polyurethane (urea) sheet structures that are permeable to water vapour - Google Patents

Process for the production of microporous polyurethane (urea) sheet structures that are permeable to water vapour

Info

Publication number
GB1216925A
GB1216925A GB1997268A GB1997268A GB1216925A GB 1216925 A GB1216925 A GB 1216925A GB 1997268 A GB1997268 A GB 1997268A GB 1997268 A GB1997268 A GB 1997268A GB 1216925 A GB1216925 A GB 1216925A
Authority
GB
United Kingdom
Prior art keywords
urea
microporous polyurethane
water vapour
dispersion
permeable
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
GB1997268A
Inventor
Artur Reischl
Dieter Dieterich
Harro Witt
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 GB1216925A publication Critical patent/GB1216925A/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
    • D06N3/0086—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
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1,216,925. Microporous polyurethane sheets. FARBENFABRIKEN BAYER A.G. 26 April, 1968 [28 April, 1967], No. 19972/68. Heading B5B. [Also in Divisions B2 and C3] A microporous polyurethane sheet is formed from an aqueous dispersion of a polyurethane (urea) which has salt-type groups, an average M.W. above 20,000, and in homogeneous, solid form, a Shore A hardness of 30-98, the dispersion having a particle size above 5Á, by forming a sheet structure of the dispersion, e.g. by casting, followed by melt-sintering at 80- 220‹ C. Casting may be on a smooth surface from which the sintered film is removed, or may be on, e.g. a clay tablet, cotton cloth or a fleece, whereby a porous coated structure is obtained. The preparation of the polyurethanes and their dispersions is described (see Division C3). The films have high water vapour permeability.
GB1997268A 1967-04-28 1968-04-26 Process for the production of microporous polyurethane (urea) sheet structures that are permeable to water vapour Expired GB1216925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0052275 1967-04-28

Publications (1)

Publication Number Publication Date
GB1216925A true GB1216925A (en) 1970-12-23

Family

ID=7105332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1997268A Expired GB1216925A (en) 1967-04-28 1968-04-26 Process for the production of microporous polyurethane (urea) sheet structures that are permeable to water vapour

Country Status (9)

Country Link
JP (1) JPS4930509B1 (en)
AT (1) AT282975B (en)
BE (1) BE714304A (en)
CH (1) CH494258A (en)
DE (1) DE1694147C3 (en)
FR (1) FR1576476A (en)
GB (1) GB1216925A (en)
NL (1) NL6805896A (en)
SE (1) SE329917B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014092986A2 (en) * 2012-12-14 2014-06-19 Dow Global Technologies Llc Solid, self-bondable organic polymers and methods for using same
WO2014092985A3 (en) * 2012-12-14 2014-08-07 Dow Global Technologies Llc Solid, self-bondable isocyantate-containing organic polymers and methods for using same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035730A1 (en) * 1970-07-18 1972-01-27 Bayer Process for the preparation of aqueous suspensions or pastes of fibrous, crosslinked particles and their use
US4160065A (en) * 1976-12-14 1979-07-03 Witco Chemical Corporation Polyurethane latexes from NCO prepolymers chain extended with polyepoxides, polyanhydrides or polyaldehydes, and layered products
DE2734576A1 (en) * 1977-07-30 1979-02-08 Bayer Ag PROCESS FOR THE PREPARATION OF Aqueous DISPERSIONS OR SOLUTIONS OF ISOCYANATE POLYADDITION PRODUCTS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014092986A2 (en) * 2012-12-14 2014-06-19 Dow Global Technologies Llc Solid, self-bondable organic polymers and methods for using same
WO2014092986A3 (en) * 2012-12-14 2014-08-07 Dow Global Technologies Llc Solid, self-bondable organic polymers and methods for using same
WO2014092985A3 (en) * 2012-12-14 2014-08-07 Dow Global Technologies Llc Solid, self-bondable isocyantate-containing organic polymers and methods for using same
CN104837941A (en) * 2012-12-14 2015-08-12 陶氏环球技术有限责任公司 Solid, self-bondable isocyantate-containing organic polymers and methods for using same
CN104837941B (en) * 2012-12-14 2017-12-05 陶氏环球技术有限责任公司 Solid can self-adhesion organic polymer containing isocyanates and its application method
US9840576B2 (en) 2012-12-14 2017-12-12 Dow Global Technologies Llc Solid, self-bondable isocyanate-containing organic polymers and methods for using same

Also Published As

Publication number Publication date
BE714304A (en) 1968-09-16
SE329917B (en) 1970-10-26
AT282975B (en) 1970-07-27
NL6805896A (en) 1968-10-29
DE1694147A1 (en) 1971-06-09
DE1694147B2 (en) 1974-03-28
JPS4930509B1 (en) 1974-08-13
CH494258A (en) 1970-07-31
FR1576476A (en) 1969-08-01
DE1694147C3 (en) 1974-11-07

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