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CH362846A - Process for the production of artificial sponges, the gliding power, pores and color of which largely correspond to those of natural sponges - Google Patents

Process for the production of artificial sponges, the gliding power, pores and color of which largely correspond to those of natural sponges

Info

Publication number
CH362846A
CH362846A CH3755556A CH3755556A CH362846A CH 362846 A CH362846 A CH 362846A CH 3755556 A CH3755556 A CH 3755556A CH 3755556 A CH3755556 A CH 3755556A CH 362846 A CH362846 A CH 362846A
Authority
CH
Switzerland
Prior art keywords
sponges
pores
color
production
those
Prior art date
Application number
CH3755556A
Other languages
German (de)
Inventor
Walter Dr-Ing Koenig
Original Assignee
Koepp & Co Chem Fab 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 Koepp & Co Chem Fab Ag filed Critical Koepp & Co Chem Fab Ag
Publication of CH362846A publication Critical patent/CH362846A/en

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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
    • C08G18/1841—Catalysts containing secondary or tertiary amines or salts thereof having carbonyl groups which may be linked to one or more nitrogen or oxygen atoms
    • 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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CH3755556A 1955-09-22 1956-09-18 Process for the production of artificial sponges, the gliding power, pores and color of which largely correspond to those of natural sponges CH362846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK26927A DE1017783B (en) 1955-09-22 1955-09-22 Process for the production of sponges with improved properties from polyurethane foams

Publications (1)

Publication Number Publication Date
CH362846A true CH362846A (en) 1962-06-30

Family

ID=7217750

Family Applications (1)

Application Number Title Priority Date Filing Date
CH3755556A CH362846A (en) 1955-09-22 1956-09-18 Process for the production of artificial sponges, the gliding power, pores and color of which largely correspond to those of natural sponges

Country Status (4)

Country Link
CH (1) CH362846A (en)
DE (1) DE1017783B (en)
FR (1) FR1156774A (en)
GB (1) GB822446A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117940A (en) * 1960-11-14 1964-01-14 Mobay Chemical Corp Method of dissolving polyurethanes
US3109824A (en) * 1960-11-14 1963-11-05 Mobay Chemical Corp Method of dissolving polyurethanes and polyureas using tall oil
US4451583A (en) * 1982-01-26 1984-05-29 Olin Corporation Recycling of flexible polyurethane foam scrap

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913474C (en) * 1941-04-20 1954-06-14 Bayer Ag Process for the production of highly porous, solid or elastic plastic bodies
BE516512A (en) * 1951-12-24
DE926880C (en) * 1952-01-30 1955-04-25 Bayer Ag Process for the production of foams with a very low specific weight
DE955993C (en) * 1953-08-19 1957-01-10 Bayer Ag Process for the production of, in particular, elastic foams from linear or branched polyesters and diisocyanates in the presence of water

Also Published As

Publication number Publication date
DE1017783B (en) 1957-10-17
GB822446A (en) 1959-10-28
FR1156774A (en) 1958-05-21

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