GB1498616A - Process for the production of stable dispersions - Google Patents

Process for the production of stable dispersions

Info

Publication number
GB1498616A
GB1498616A GB4720376A GB4720376A GB1498616A GB 1498616 A GB1498616 A GB 1498616A GB 4720376 A GB4720376 A GB 4720376A GB 4720376 A GB4720376 A GB 4720376A GB 1498616 A GB1498616 A GB 1498616A
Authority
GB
United Kingdom
Prior art keywords
hydroxyl
components
flow mixer
dispersants
molecular weight
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
GB4720376A
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
Priority claimed from DE19752550833 external-priority patent/DE2550833C2/en
Priority claimed from DE19752550862 external-priority patent/DE2550862C2/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1498616A publication Critical patent/GB1498616A/en
Expired legal-status Critical Current

Links

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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
    • 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
    • C08G18/0838—Manufacture of polymers in the presence of non-reactive compounds
    • C08G18/0842—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
    • C08G18/0861—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers
    • C08G18/0871—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers the dispersing or dispersed phase being organic
    • C08G18/0876—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers the dispersing or dispersed phase being organic the dispersing or dispersed phase being a polyol
    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/409—Dispersions of polymers of C08G in organic compounds having active hydrogen

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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Stable dispersions of polyureas and/or polyhydrazodicarboxamides in hydroxyl-containing compounds are obtained by reacting 1) organic polyisocyanates with 2) primary and/or secondary amino group-containing polyamines and/or hydrazines and/or hydrazides, in 3) compounds containing at least one hydroxyl group as dispersants, where components 1, 2 and 3 are fed continuously to a through-flow mixer in such an amount that the mean residence time in the mixing unit is less than 10 minutes and the equivalent ratio of components 1 and 2 is between 0.8 and 1.05, and where either all three components separately or component 1 and combined components 2 and 3 are fed to the through-flow mixer, and where the reaction product leaving the through-flow mixer is subsequently collected in a receiver, if component 3 contains hydroxyl-containing polyesters, polyester-amides and/or polycarbonates having a molecular weight of between 400 and 16 000 and/or polyols having a molecular weight of between 62 and 400 and optionally additionally hydroxyl-containing, relatively high-molecular-weight polyethers. The dispersions of polyisocyanate polyaddition products in hydroxyl-containing dispersants which are accessible according to the invention can be used, for example, for the preparation of polyurethane plastics, in particular foams, having improved mechanical properties.
GB4720376A 1975-11-12 1976-11-12 Process for the production of stable dispersions Expired GB1498616A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752550833 DE2550833C2 (en) 1975-11-12 1975-11-12 Process for the production of stable dispersions
DE19752550862 DE2550862C2 (en) 1975-11-12 1975-11-12 Process for the production of stable dispersions

Publications (1)

Publication Number Publication Date
GB1498616A true GB1498616A (en) 1978-01-25

Family

ID=25769609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4720376A Expired GB1498616A (en) 1975-11-12 1976-11-12 Process for the production of stable dispersions

Country Status (12)

Country Link
JP (1) JPS5260896A (en)
AT (1) AT347688B (en)
AU (1) AU506304B2 (en)
BR (1) BR7607553A (en)
CA (1) CA1068841A (en)
CH (1) CH626102A5 (en)
ES (1) ES453204A2 (en)
FR (1) FR2331579A2 (en)
GB (1) GB1498616A (en)
IT (1) IT1066662B (en)
NL (1) NL181201C (en)
SE (2) SE432771B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504671A1 (en) * 1985-02-12 1986-08-14 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING MATTER, NON-BLOCKING, THIN-WALLED MOLDED BODIES FROM LINEAR, THERMOPLASTIC, POLYADUCTIVE-CONTAINING POLYURETHANE ELASTOMERS AND THEIR USE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1719325B2 (en) * 1967-08-23 1975-06-12 Wacker-Chemie Gmbh, 8000 Muenchen Process for achieving the weldability of elastic polyurethane foams
DK132501C (en) * 1972-08-07 1976-05-17 Balling Engelsen K PROCEDURE FOR PREPARING POLYURETHANE FOAM CONTAINING POLYURETHANE SCRAP

Also Published As

Publication number Publication date
SE8202977L (en) 1982-05-12
FR2331579A2 (en) 1977-06-10
NL181201B (en) 1987-02-02
JPS5260896A (en) 1977-05-19
AU1960576A (en) 1978-05-18
BR7607553A (en) 1977-09-27
JPS5546654B2 (en) 1980-11-25
ATA833876A (en) 1978-05-15
AT347688B (en) 1979-01-10
AU506304B2 (en) 1979-12-20
NL7612445A (en) 1977-05-16
CA1068841A (en) 1979-12-25
FR2331579B2 (en) 1983-02-04
SE432771B (en) 1984-04-16
CH626102A5 (en) 1981-10-30
SE7612594L (en) 1977-05-13
IT1066662B (en) 1985-03-12
NL181201C (en) 1987-07-01
ES453204A2 (en) 1977-12-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940514