GB433251A - Improvements in and relating to the production of porous heat and sound insulating substances - Google Patents

Improvements in and relating to the production of porous heat and sound insulating substances

Info

Publication number
GB433251A
GB433251A GB32065/34A GB3206534A GB433251A GB 433251 A GB433251 A GB 433251A GB 32065/34 A GB32065/34 A GB 32065/34A GB 3206534 A GB3206534 A GB 3206534A GB 433251 A GB433251 A GB 433251A
Authority
GB
United Kingdom
Prior art keywords
sound insulating
porous heat
relating
production
insulating substances
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
GB32065/34A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB433251A publication Critical patent/GB433251A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • 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
    • 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
    • C08J2357/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)

Abstract

In the preparation of porous heat and sound insulating substances from polymerization products of a vinyl compound by the addition of a volatile solvent and subsequent heating, or by the addition of decomposable substances evolving gases on heating, as described in the parent Specification, the operation is effected under vacuum. In an example, a vacuum of 3-0,2 mm. of mercury was applied in the preparation of porous polystyrol, a product of specific gravity 0,1-0,02 being obtained.
GB32065/34A 1933-11-08 1934-11-07 Improvements in and relating to the production of porous heat and sound insulating substances Expired GB433251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED66897D DE644102C (en) 1933-11-08 1933-11-08 Process for the production of porous objects from polyvinyl compounds

Publications (1)

Publication Number Publication Date
GB433251A true GB433251A (en) 1935-08-12

Family

ID=7059581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32065/34A Expired GB433251A (en) 1933-11-08 1934-11-07 Improvements in and relating to the production of porous heat and sound insulating substances

Country Status (2)

Country Link
DE (1) DE644102C (en)
GB (1) GB433251A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973900C (en) * 1949-07-27 1960-07-14 Chemische Fabriken Ag Process for the production of cell bodies with closed cells
DE963623C (en) * 1950-03-10 1957-05-09 Sueddeutsche Kabelwerke Zweign Cables or electrical lines whose insulation is made of foam strips
DE941389C (en) * 1951-04-19 1956-04-12 Basf Ag Process for the production of porous moldings from thermoplastics
DE976493C (en) * 1951-07-20 1963-10-03 Norddeutsche Seekabelwerke Ag Porous thermoplastic films, tapes, threads or the like for insulating electrical conductors
CH327828A (en) * 1955-01-20 1958-02-15 Zwick Franz Device for the production of moldings with protruding parts made of foamable plastics
DE1127067B (en) * 1955-08-12 1962-04-05 Basf Ag Process for the production of porous masses from small, blowing agent-containing thermoplastics
DE1204389B (en) * 1958-05-30 1965-11-04 Franz Zwick Use of a porous, permeable mold in the process of manufacturing permeable, porous molded bodies by sintering the cores of a thermoplastic material

Also Published As

Publication number Publication date
DE644102C (en) 1937-04-24

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