GB1462562A - Production of polyurethane powder - Google Patents

Production of polyurethane powder

Info

Publication number
GB1462562A
GB1462562A GB431275A GB431275A GB1462562A GB 1462562 A GB1462562 A GB 1462562A GB 431275 A GB431275 A GB 431275A GB 431275 A GB431275 A GB 431275A GB 1462562 A GB1462562 A GB 1462562A
Authority
GB
United Kingdom
Prior art keywords
amine
particles
jan
preferred
gaseous
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
GB431275A
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 GB1462562A publication Critical patent/GB1462562A/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
    • C08J3/12—Powdering or granulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/16—Interfacial polymerisation
    • 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
    • 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
    • C08G18/28—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
    • C08G18/3228—Polyamines acyclic
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

1462562 Polyurethane and polyurea powders BAYER AG 31 Jan 1975 [31 Jan 1974] 4312/75 Heading C3R Powder form polyurethanes and polyureas are prepared by converting a polyisocyanate or an isocyanate prepolymer into small particles in the liquid state, contacting the particles with a gaseous diamine or polyamine until they have been converted into the solid state and then separating the solid particles from the gaseous amine. The amine is preferably diluted with an inert gas. Aliphatic diamines and polyalkylene polyamines are preferred. It is preferred to introduce the isocyanate component into a tubular reactor which contains the amine component at a temperature above the boiling or thaw point of the amine. Other substances may be enclosed in the polymer particles.
GB431275A 1974-01-31 1975-01-31 Production of polyurethane powder Expired GB1462562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742404538 DE2404538C2 (en) 1974-01-31 1974-01-31 Manufacture of polyurea powder

Publications (1)

Publication Number Publication Date
GB1462562A true GB1462562A (en) 1977-01-26

Family

ID=5906170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB431275A Expired GB1462562A (en) 1974-01-31 1975-01-31 Production of polyurethane powder

Country Status (9)

Country Link
JP (1) JPS50109292A (en)
BE (1) BE824875A (en)
DE (1) DE2404538C2 (en)
DK (1) DK32875A (en)
FR (1) FR2259857B1 (en)
GB (1) GB1462562A (en)
IT (1) IT1029382B (en)
LU (1) LU71750A1 (en)
NL (1) NL7501047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005120695A1 (en) * 2004-06-14 2005-12-22 Tema Technopolymers S.R.L. Plant for manufacturing polyurethane goods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757017C3 (en) * 1977-12-21 1986-07-31 Hoechst Ag, 6230 Frankfurt Process for the production of pressure-resistant polyurethane-polyurea capsules with a structured inner mass
DE3333654A1 (en) * 1983-09-17 1985-03-28 Cassella Ag, 6000 Frankfurt ENCLOSED, SLOWLY SOLUBLE IN WATER, THEIR PRODUCTION AND THEIR USE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005120695A1 (en) * 2004-06-14 2005-12-22 Tema Technopolymers S.R.L. Plant for manufacturing polyurethane goods
EP1609525A1 (en) * 2004-06-14 2005-12-28 Tema Technopolymers S.r.l. Plant for manufacturing polyurethane goods.

Also Published As

Publication number Publication date
LU71750A1 (en) 1975-12-09
DK32875A (en) 1975-09-29
JPS50109292A (en) 1975-08-28
IT1029382B (en) 1979-03-10
DE2404538C2 (en) 1982-04-29
FR2259857B1 (en) 1978-04-21
DE2404538A1 (en) 1975-08-07
NL7501047A (en) 1975-08-04
BE824875A (en) 1975-07-28
FR2259857A1 (en) 1975-08-29

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Legal Events

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