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ES449816A1 - Procedimiento para la obtencion de objetos espumados a par- tir de materiales sinteticos termoplasticos. - Google Patents

Procedimiento para la obtencion de objetos espumados a par- tir de materiales sinteticos termoplasticos.

Info

Publication number
ES449816A1
ES449816A1 ES449816A ES449816A ES449816A1 ES 449816 A1 ES449816 A1 ES 449816A1 ES 449816 A ES449816 A ES 449816A ES 449816 A ES449816 A ES 449816A ES 449816 A1 ES449816 A1 ES 449816A1
Authority
ES
Spain
Prior art keywords
urea
acid anhydride
base material
foaming agent
thermoplastic synthetic
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
ES449816A
Other languages
English (en)
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 ES449816A1 publication Critical patent/ES449816A1/es
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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
ES449816A 1975-07-15 1976-07-14 Procedimiento para la obtencion de objetos espumados a par- tir de materiales sinteticos termoplasticos. Expired ES449816A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752531630 DE2531630A1 (de) 1975-07-15 1975-07-15 Treibmittelkombination auf basis harnstoff und saeureanhydriden

Publications (1)

Publication Number Publication Date
ES449816A1 true ES449816A1 (es) 1977-08-01

Family

ID=5951574

Family Applications (1)

Application Number Title Priority Date Filing Date
ES449816A Expired ES449816A1 (es) 1975-07-15 1976-07-14 Procedimiento para la obtencion de objetos espumados a par- tir de materiales sinteticos termoplasticos.

Country Status (7)

Country Link
JP (1) JPS5212276A (es)
BE (1) BE844032A (es)
BR (1) BR7604584A (es)
DE (1) DE2531630A1 (es)
ES (1) ES449816A1 (es)
FR (1) FR2318196A1 (es)
NL (1) NL7607790A (es)

Also Published As

Publication number Publication date
JPS5212276A (en) 1977-01-29
NL7607790A (nl) 1977-01-18
FR2318196A1 (fr) 1977-02-11
FR2318196B3 (es) 1979-04-06
DE2531630A1 (de) 1977-02-03
BE844032A (fr) 1977-01-12
BR7604584A (pt) 1977-08-02

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