GB1054215A - - Google Patents

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Publication number
GB1054215A
GB1054215A GB1054215DA GB1054215A GB 1054215 A GB1054215 A GB 1054215A GB 1054215D A GB1054215D A GB 1054215DA GB 1054215 A GB1054215 A GB 1054215A
Authority
GB
United Kingdom
Prior art keywords
reacting
prepolymer
nco
dimethyl formamide
dimethyl
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.)
Active
Application number
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.)
Publication of GB1054215A publication Critical patent/GB1054215A/en
Active legal-status Critical Current

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Classifications

    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes

Landscapes

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

Abstract

1,054,215. Polyurethane filaments. ASAHI KASEI KOGYO KABUSHIKI KAISHA. April 14, 1964 [April 20, 1963], No. 15390/64. Heading B5B. [Also in Division C3] Polyurethane elastic yarn having a creep recovery above 90% and an intrinsic viscosity between 0À8 and 1À2 c.c./gm. measured in dimethyl formamide at 25‹ C. is produced by reacting a linear bifunctional hydroxyl terminated polymer of M.W. 800-2500 and of melting point below 50‹ C. with an organic diisocyanate in a ratio of NCO/OH of 1À0-2À0: 1À0 to produce an isocyanate terminated prepolymer, adding an organic solvent to prepare a prepolymer solution and reacting with an amino alcohol in an amount equivalent to the -NCO content of the prepolymer to produce a low M.W. hydroxyl terminated polymer and reacting with an organic diisocyanate in amount to provide an NCO/OH ratio of 0À85- 1À00 : 1 and shaping to a yarn by extruding through an orifice into a coagulation bath. Solvents may be: dioxane, acetone, methyl ethylketone, benzene, toluene, dimethyl formamide, dimethyl acetamide or dimethyl sulfoxide. Amino alcohols may be: ethanolamine, propanol amine, isopropanol amine and nbutanolamine. In Example (1) 4,41-diphenylmethane diisocyanate was reacted with polyvaleroacetone of M.W. 1700 terminated with propylene oxide. Dimethyl formamide was added followed by ethanolamine and more 4,41-diphenylmethane diisocyanate. The solution was extruded through nozzles 0À1 mm. in diameter into a bath of aqueous Na 2 CO 3 at 60‹ C. with spinning velocity of 20 m./min.
GB1054215D 1963-04-20 Active GB1054215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005163 1963-04-20

Publications (1)

Publication Number Publication Date
GB1054215A true GB1054215A (en)

Family

ID=12016248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1054215D Active GB1054215A (en) 1963-04-20

Country Status (2)

Country Link
US (1) US3331887A (en)
GB (1) GB1054215A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467626A (en) * 1964-11-02 1969-09-16 Teijin Ltd Process for preparing a highly elastic linear polymer and an elastic article produced therefrom from isocyanate terminated prepolymers reacted with an aminohydrazide
DE2539104C3 (en) * 1975-09-03 1986-07-10 Basf Ag, 6700 Ludwigshafen Low-solvent stoving enamels

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048408B (en) * 1957-09-13 1959-01-08 Farbenfabriken Bayer Aktien gesellschaft, Leverkusen Baverwerk Process for the production of crosslinked plastics based on isocyanate-modified polyethers and polythioethers
US3148173A (en) * 1959-01-26 1964-09-08 Wyandotte Chemicals Corp Polyurethane-ureas containing urealinked nu-(2-hydroxypropyl) alkylene diamines
DE1278687B (en) * 1959-04-17 1968-09-26 Bayer Ag Process for the production of highly elastic threads or fibers from isocyanate polyaddition products
US3149998A (en) * 1962-08-01 1964-09-22 Du Pont Color stabilized articles and process for preparing same

Also Published As

Publication number Publication date
US3331887A (en) 1967-07-18
DE1494541A1 (en) 1969-07-03

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