GB1334792A - Aqueous dispersions of polyurethanes - Google Patents

Aqueous dispersions of polyurethanes

Info

Publication number
GB1334792A
GB1334792A GB1334792DA GB1334792A GB 1334792 A GB1334792 A GB 1334792A GB 1334792D A GB1334792D A GB 1334792DA GB 1334792 A GB1334792 A GB 1334792A
Authority
GB
United Kingdom
Prior art keywords
water
dispersion
sept
solubility
iii
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
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.)
UCB SA
Original Assignee
UCB SA
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 UCB SA filed Critical UCB SA
Publication of GB1334792A publication Critical patent/GB1334792A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
    • 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)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

1334792 Polyurethane dispersions UCB 17 Sept 1971 [21 Sept 1970] 44785/70 Heading C3R Water dilutable, oil-in-water, dispersions are prepared by first dissolving a linear or slightly branched thermoplastic polyurethane (I) which contains <0À2% free NCO groups in an organic medium (II) having a solubility in water at ambient temperature which is <25% by wt. The solution is then dispersed in water in the presence of at least one surfactant (III). I may be prepared by reacting a polyether, polyester or polyolefin glycol with an organic diisocyanate, optionally with conventional chain extenders. II may be at least one of isophorone, hexane, toluene, benzene, xylene, pentane, octane, decane, dodecane, cumene, cyclopentanone, cyclohexanone, benzophenone, methyl isobutyl ketone, ethylene chloride, nitropropane, amyl acetate, isopropyl ether, isobutyl ether, cyclohexanol, dimethyl phthalate or dibutyl phthalate. Other solvents may be used in conjunction with the above providing that the total solvent mixture has a solubility in water of <25% by wt. Examples are dimethylformamide, dimethylsulphoxide, methanol, ethanol, propanol, methylamine, ethylamine, ethylenediamine, aniline or methyl ethyl ketone. III, which may be anionic, cationic, non-ionic or amphoteric, may comprise 0À01-10% by wt. of the total dispersion. A protective colloid, e.g. casein, polyvinyl alcohol, polyvinylpyrrolidone, carboxyl containing vinyl polymer, a cellulose derivative, an alginate or a natural gum may additionally be present at up to 10% by wt. of the total dispersion. Dispersion may take place at 30-150‹ C. Uses.-Coating and impregnation.
GB1334792D 1970-09-21 1970-09-21 Aqueous dispersions of polyurethanes Expired GB1334792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4478570 1970-09-21

Publications (1)

Publication Number Publication Date
GB1334792A true GB1334792A (en) 1973-10-24

Family

ID=10434726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1334792D Expired GB1334792A (en) 1970-09-21 1970-09-21 Aqueous dispersions of polyurethanes

Country Status (10)

Country Link
AT (1) AT318917B (en)
BE (1) BE772797A (en)
CH (1) CH544134A (en)
DE (1) DE2146888A1 (en)
ES (1) ES395224A1 (en)
FR (1) FR2107828B1 (en)
GB (1) GB1334792A (en)
HU (1) HU163647B (en)
IT (1) IT944710B (en)
NL (1) NL7112679A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406657A1 (en) * 1977-10-22 1979-05-18 Wiedeking Chem Fab LACQUER AND FUSION RESIN FOR ELECTRICAL INSULATION
US5077330A (en) * 1988-08-29 1991-12-31 Armstrong World Industries, Inc. Conductive polyurethane-urea/polyethylene oxide
CN113549187A (en) * 2021-08-06 2021-10-26 扬州工业职业技术学院 Waterborne polyurethane for microfiber leather and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406657A1 (en) * 1977-10-22 1979-05-18 Wiedeking Chem Fab LACQUER AND FUSION RESIN FOR ELECTRICAL INSULATION
US5077330A (en) * 1988-08-29 1991-12-31 Armstrong World Industries, Inc. Conductive polyurethane-urea/polyethylene oxide
CN113549187A (en) * 2021-08-06 2021-10-26 扬州工业职业技术学院 Waterborne polyurethane for microfiber leather and preparation method thereof

Also Published As

Publication number Publication date
IT944710B (en) 1973-04-20
BE772797A (en) 1972-03-20
FR2107828B1 (en) 1974-06-21
HU163647B (en) 1973-09-27
AT318917B (en) 1974-11-25
DE2146888A1 (en) 1972-03-23
ES395224A1 (en) 1973-11-16
CH544134A (en) 1973-11-15
NL7112679A (en) 1972-03-23
FR2107828A1 (en) 1972-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees