GB1219671A - Linear polyurethanes and process for their preparation - Google Patents

Linear polyurethanes and process for their preparation

Info

Publication number
GB1219671A
GB1219671A GB3990568A GB3990568A GB1219671A GB 1219671 A GB1219671 A GB 1219671A GB 3990568 A GB3990568 A GB 3990568A GB 3990568 A GB3990568 A GB 3990568A GB 1219671 A GB1219671 A GB 1219671A
Authority
GB
United Kingdom
Prior art keywords
iii
polyurethanes
aug
bis
organic solvent
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
GB3990568A
Inventor
Heinrich Krimm
Hermann Schnell
Gunther Lenz
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 GB1219671A publication Critical patent/GB1219671A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,219,671. Polyurethanes. FARBENFABRIKEN BAYER A.G. 21 Aug., 1968 [26 Aug., 1967], No. 39905/68. Heading C3R. Linear high M.W. polyurethanes are prepared by condensing: (I) binuclear N,N<SP>1</SP>-dialkyldiamines, which have the nitrogen atoms aromatically linked and in which any bridge carbon atoms present are not derived from aldehydes, with (II) aromatic diols, and (III) bifunctional carbonic acid derivatives. In modifications of the invention, I and III may be prereacted before condensation with II or alternatively II and III are prereacted before condensation with I. The reaction may be carried out in an organic solvent, e.g. benzene, toluene, methylene chloride, ethylene chloride, chloroform or chlorobenzene or in a two-phase medium of organic solvent and water. The process may be carried out in the melt, e.g. at 180-320‹ C., this is particularly applicable to the two modifications set out above. A catalyst, e.g. a tertiary amine or an alkali metal compound, e.g. a hydroxide, alkoxide or phenate, may be employed. Suitable I are bis-(4,4<SP>1</SP>- methylaminophenyl) alkanes and II may be a bis-(4,4<SP>1</SP>-hydroxyphenyl) alkane. Examples of III are phosgene, dialkyl or diaryl carbonates, e.g. diphenyl carbonate or biscarbamic acid chlorides or alkyl or aryl esters thereof.
GB3990568A 1967-08-26 1968-08-21 Linear polyurethanes and process for their preparation Expired GB1219671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967F0053340 DE1720706C3 (en) 1967-08-26 1967-08-26 Thermoplastic, non-linear "1 <> lekl> la ™ polyurethanes and processes for their manufacture

Publications (1)

Publication Number Publication Date
GB1219671A true GB1219671A (en) 1971-01-20

Family

ID=7106220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3990568A Expired GB1219671A (en) 1967-08-26 1968-08-21 Linear polyurethanes and process for their preparation

Country Status (5)

Country Link
BE (1) BE719972A (en)
DE (1) DE1720706C3 (en)
FR (1) FR1577783A (en)
GB (1) GB1219671A (en)
NL (1) NL6811999A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680149B2 (en) 2000-10-02 2004-01-20 Hanyang Hak Won Co., Ltd. Solid polymer electrolytes using polyether poly (N-substituted urethane)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680149B2 (en) 2000-10-02 2004-01-20 Hanyang Hak Won Co., Ltd. Solid polymer electrolytes using polyether poly (N-substituted urethane)
US6864328B2 (en) 2000-10-02 2005-03-08 Hanyank Hak Won Co., Ltd. Process for preparing polyether poly(N-substituted urethane)

Also Published As

Publication number Publication date
DE1720706A1 (en) 1971-07-08
NL6811999A (en) 1969-02-28
DE1720706C3 (en) 1979-12-20
DE1720706B2 (en) 1979-05-03
BE719972A (en) 1969-02-03
FR1577783A (en) 1969-08-08

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