GB1286389A - Linear segmented polyurethanes - Google Patents

Linear segmented polyurethanes

Info

Publication number
GB1286389A
GB1286389A GB48770/70A GB4877070A GB1286389A GB 1286389 A GB1286389 A GB 1286389A GB 48770/70 A GB48770/70 A GB 48770/70A GB 4877070 A GB4877070 A GB 4877070A GB 1286389 A GB1286389 A GB 1286389A
Authority
GB
United Kingdom
Prior art keywords
urea
acid hydrazide
formula
diphenyl
segmented polyurethanes
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
GB48770/70A
Inventor
Wilhelm Thoma
Harald Oertel
Heinrich Rinke
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 GB1286389A publication Critical patent/GB1286389A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/04—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms
    • C07C275/06—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton
    • C07C275/16—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton being further substituted by carboxyl groups
    • 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
    • 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
    • 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
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Artificial Filaments (AREA)

Abstract

1286389 Linear segmented polyurethanes FARBENFABRIKEN BAYER AG 14 Oct 1970 [17 Oct 1969] 48770/70 Heading C3R [Also in Division C2] Linear segmented polyurethanes contain at least 5 mol. per cent, based on the chain extension segment present, of a chain extension segment of the formula in which R represents a radical of the formula -(CH 2 ) x -, wherein x is 1 or 2 or of the formula wherein y is 0, 1 or 2, and may be prepared by reacting an isocyanate preadduct obtained from a dihydroxy compound with a molecular weight of 500 to 6000, optionally a diol having a M.W. of 62 to 300 and containing optionally one or more tertiary aliphatic amino groups, and a molar excess of a diisocyanate with a substantially equivalent quantity of a bifunctional chain extending agent, at least 5 mol. per cent of which is a monourea hydrazide of the formula wherein R is as above, in the presence of a highly polar organic solvent, and then removing the solvent. The isocyanate preadduct is suitably prepared from a polyester, polycarbonate or polyether and an aromatic diisocyanate. In specific examples, the chain extending agent is urea-N,N<SP>1</SP>-diacetic acid hydrazide, urea-N,N<SP>1</SP>- dipropionic acid hydrazide, urea -N,N<SP>1</SP>-diphenyl- 4,4<SP>1</SP>-carboxylic acid hydrazide, urea-N,N<SP>1</SP>-diphenyl-4,4<SP>1</SP>-diacetic acid hydrazide or urea- N,N<SP>1</SP> - diphenyl - 4,4<SP>1 </SP>- propionic acid hydrazide. Filaments or films may be produced from the polymer solutions.
GB48770/70A 1969-10-17 1970-10-14 Linear segmented polyurethanes Expired GB1286389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691952394 DE1952394A1 (en) 1969-10-17 1969-10-17 Polyurethane elastomers

Publications (1)

Publication Number Publication Date
GB1286389A true GB1286389A (en) 1972-08-23

Family

ID=5748481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48770/70A Expired GB1286389A (en) 1969-10-17 1970-10-14 Linear segmented polyurethanes

Country Status (7)

Country Link
US (1) US3708453A (en)
JP (1) JPS4843199B1 (en)
BE (1) BE757621A (en)
DE (1) DE1952394A1 (en)
FR (1) FR2066131A5 (en)
GB (1) GB1286389A (en)
NL (1) NL7015241A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29224E (en) * 1972-05-04 1977-05-17 Bayer Aktiengesellschaft Polyurethane urea elastomers based on polycarbonate macrodiols
DE2221751C3 (en) * 1972-05-04 1978-08-10 Bayer Ag, 5090 Leverkusen Polyurethane urea elastomers
US4286014A (en) * 1978-01-31 1981-08-25 Toray Industries, Incorporated Composite sheet material
US5183614A (en) * 1989-01-26 1993-02-02 E. I. Du Pont De Nemours And Company Method for producing x-ray detectable spandex fibers

Also Published As

Publication number Publication date
DE1952394A1 (en) 1971-04-29
JPS4843199B1 (en) 1973-12-17
BE757621A (en) 1971-04-01
US3708453A (en) 1973-01-02
NL7015241A (en) 1971-04-20
FR2066131A5 (en) 1971-08-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees