ES393748A1 - Procedure for the impregnation of foamed materials. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the impregnation of foamed materials. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES393748A1
ES393748A1 ES393748A ES393748A ES393748A1 ES 393748 A1 ES393748 A1 ES 393748A1 ES 393748 A ES393748 A ES 393748A ES 393748 A ES393748 A ES 393748A ES 393748 A1 ES393748 A1 ES 393748A1
Authority
ES
Spain
Prior art keywords
foamed materials
impregnation
translation
machine
legally binding
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
ES393748A
Other languages
Spanish (es)
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 DE19702037613 external-priority patent/DE2037613C3/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES393748A1 publication Critical patent/ES393748A1/en
Expired legal-status Critical Current

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    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/727—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80 comprising distillation residues or non-distilled raw phosgenation products
    • C—CHEMISTRY; METALLURGY
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
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    • C—CHEMISTRY; METALLURGY
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    • C08G18/163—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
    • C08G18/165—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22 covered by C08G18/18 and C08G18/24
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    • C08G18/425—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids the polyols containing one or two ether groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/004—Permanent magnet actuating reed switches push-button-operated, e.g. for keyboards
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Process for the impregnation of foamed materials, by means of isocyanate reactions on interface surfaces of foamed materials, characterized in that residual, non-distillable isocyanates, obtained in the industrial manufacture of aliphatic, araliphatic, cycloaliphatic and aromatic polyisocyanates, and/or products of addition, which carry nco groups up to an average molecular weight of 12,000, of these residual isocyanates with compounds having reactive hydrogen atoms, being contained in the residual isocyanates and/or addition products, which carry nco groups, at least 2% by weight of mono- and/or monomeric, distillable polyisocyanates are reacted, either with one another or with compounds with reactable hydrogen atoms, optionally in the presence of catalysts, on the interface surfaces of foamed materials, largely with cells open, preferably foamed materials showing urethane, and/or urea groups, and/or isocyanurate. (Machine-translation by Google Translate, not legally binding)
ES393748A 1970-07-29 1971-07-29 Procedure for the impregnation of foamed materials. (Machine-translation by Google Translate, not legally binding) Expired ES393748A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702037613 DE2037613C3 (en) 1970-07-29 Process for treating foams

Publications (1)

Publication Number Publication Date
ES393748A1 true ES393748A1 (en) 1974-07-01

Family

ID=5778240

Family Applications (1)

Application Number Title Priority Date Filing Date
ES393748A Expired ES393748A1 (en) 1970-07-29 1971-07-29 Procedure for the impregnation of foamed materials. (Machine-translation by Google Translate, not legally binding)

Country Status (7)

Country Link
AT (1) AT312302B (en)
AU (1) AU456173B2 (en)
BE (1) BE770664A (en)
ES (1) ES393748A1 (en)
FR (1) FR2099673B1 (en)
GB (1) GB1353388A (en)
NL (1) NL7110494A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846809A1 (en) * 1978-10-27 1980-05-08 Bayer Ag METHOD FOR PRODUCING POLYURETHANE PLASTICS
CN116462886A (en) * 2023-04-26 2023-07-21 西北工业大学 Preparation method of multifunctional melamine flexible composite wave-absorbing foam

Also Published As

Publication number Publication date
DE2037613B2 (en) 1975-12-18
AU456173B2 (en) 1974-12-12
GB1353388A (en) 1974-05-15
DE2037613A1 (en) 1972-02-03
BE770664A (en) 1971-12-01
FR2099673A1 (en) 1972-03-17
FR2099673B1 (en) 1976-03-26
AU3158471A (en) 1973-01-25
AT312302B (en) 1973-11-15
NL7110494A (en) 1972-02-01

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