FI81819B - Laett tvaerbundna skum framstaellda av en lineaer poluolefin eller polystyren samt foerfarande foer framstaellning av dessa. - Google Patents

Laett tvaerbundna skum framstaellda av en lineaer poluolefin eller polystyren samt foerfarande foer framstaellning av dessa. Download PDF

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Publication number
FI81819B
FI81819B FI854509A FI854509A FI81819B FI 81819 B FI81819 B FI 81819B FI 854509 A FI854509 A FI 854509A FI 854509 A FI854509 A FI 854509A FI 81819 B FI81819 B FI 81819B
Authority
FI
Finland
Prior art keywords
foam
polymer
polystyrene
parts
agent
Prior art date
Application number
FI854509A
Other languages
English (en)
Finnish (fi)
Other versions
FI854509A0 (fi
FI854509A (fi
FI81819C (sv
Inventor
Chung Poo Park
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of FI854509A0 publication Critical patent/FI854509A0/fi
Publication of FI854509A publication Critical patent/FI854509A/fi
Publication of FI81819B publication Critical patent/FI81819B/fi
Application granted granted Critical
Publication of FI81819C publication Critical patent/FI81819C/sv

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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
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08J9/0014—Use of organic additives

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Materials For Medical Uses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Insulating Materials (AREA)
  • Molding Of Porous Articles (AREA)

Claims (9)

1. Förfarande för framställning av ett lätt tvär-bundet skum, som bestär av en lineär polyolefin eller po-5 lystyren och som har en struktur bestäende väsentligen av slutna celler, kännetecknat därav, att (a) minst en lineär polyolefin, som utgörs av LLDPE, HDPE eller PP, eller polystyren i smält form under tryck blandas samman med ett cellformningsmedel och med 10 en tillräcklig mängd av ett tvärbindningsmedel, som utgörs av azidfunktionella silaner, vinylfunktionella sila-ner, organiska peroxider, polyfunktionella vinylmonomerer eller syre, för bildande av en flytande komposition, och (b) nämnda komposition pressas genom ett munstycke 15 vid ett tryck av minst 2758 kPa (400 psig), tili en zon med en lägre tryck, varvid nämnda cellformningsmedel ak-tiveras för att expandera nämnda ätminstone en lineär polyolefin eller polystyren, varvid bildas nämnda lätt tvärbundna skum. 20
2. Förfarande enligt patentkravet 1, känne tecknat därav, att nämnda tvärbindningsmedel är 2-(trimetoxisilyl)etylfenylsulfonylazid och med tvärbind-ningsmedlet tillsätts en katalysator, som katalyserar kondensation av silanoler. 25
3. Förfarande enligt patentkravet 1, känne tecknat därav, att nämnda tvärbindningsmedel är dikumylperoxid, trimetylolpropantriakrylat eller vinyl-trimetoxisilan.
4. Förfarande enligt patentkravet 1, k ä n n e -30 t e c k n a t därav, att i steget (a) tillsätts nämnda tvärbindningsmedel efter bildandet av den flytande bland-ningen av nämnda ätminstone en lineär polyolefin eller polystyren och nämnda cellformningsmedel i en sädan mängd, som är tillräcklig att initiera tvärbindandet av 35 nämnda ätminstone en lineär polyolefin eller polystyren 81 819 och höja trycket hos nämnda blandning till minst 2758 kPa (400 psig).
5. Förfarande enligt patentkravet 1, känne-t e c k n a t därav, att som nämnda tvärbindningsmedel 5 används 0,01-2,0 delar av en azidfunktionell siian per 100 delar polymer och en katalysator tillsätts, som kata-lyserar kondensation av silanoler.
6. Förfarande enligt patentkravet 1, känne-t e c k n a t därav, att som nämnda tvärbindningsmedel 10 används 0,001-0,5 delar av en organisk peroxid per 100 delar polymer.
7. Förfarande enligt patentkravet 1, känne-t e c k n a t därav, att som nämnda tvärbindningsmedel används 0,01-2,0 delar av en polyfunktionell vinylmonomer 15 per 100 delar polymer.
8. Lätt tvärbundet skum, som framställts av en li-neär polyolefin eller polystyren och som har en struktur bestäende väsentligen av slutna celler, känne- t e c k n a t därav, att det framställts medelst ett 20 förfarande enligt patentkravet 1 eller 4.
9. Polymerkompositiön av lineära polyolefiner eller polystyren, vilken kan expanderas medelst ett förfarande enligt patentkravet 1, kännetecknad därav, att den innehäller ätminstone en lineär polyolefin, 25 som utgörs av LLDPE, HDPE eller PP, eller polystyren, ett cellformningsmedel och ett tvärbindningsmedel, som utgörs av azidfunktionella silaner, vinylfunktionella silaner, organiska peroxider, polyfunktionella vinylmonomerer eller syre. Il
FI854509A 1984-11-16 1985-11-15 Lätt tvärbundna skum framställda av en lineär polyolefin eller polysty ren samt förfarande för framställning av dessa FI81819C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/672,001 US4714716A (en) 1984-11-16 1984-11-16 Lightly crosslinked linear olefinic polymer foams and process for making
US67200184 1984-11-16

Publications (4)

Publication Number Publication Date
FI854509A0 FI854509A0 (fi) 1985-11-15
FI854509A FI854509A (fi) 1986-05-17
FI81819B true FI81819B (fi) 1990-08-31
FI81819C FI81819C (sv) 1990-12-10

Family

ID=24696749

Family Applications (1)

Application Number Title Priority Date Filing Date
FI854509A FI81819C (sv) 1984-11-16 1985-11-15 Lätt tvärbundna skum framställda av en lineär polyolefin eller polysty ren samt förfarande för framställning av dessa

Country Status (11)

Country Link
US (1) US4714716A (sv)
EP (1) EP0181637B1 (sv)
JP (2) JPS61126701A (sv)
AT (1) ATE71640T1 (sv)
BR (1) BR8505760A (sv)
CA (1) CA1247816A (sv)
DE (1) DE3585207D1 (sv)
DK (1) DK526285A (sv)
ES (1) ES8706176A1 (sv)
FI (1) FI81819C (sv)
NO (1) NO166234C (sv)

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Also Published As

Publication number Publication date
EP0181637B1 (en) 1992-01-15
CA1247816A (en) 1989-01-03
FI854509A0 (fi) 1985-11-15
US4714716A (en) 1987-12-22
JPS61126701A (ja) 1986-06-14
FI854509A (fi) 1986-05-17
EP0181637A2 (en) 1986-05-21
JPS6390544A (ja) 1988-04-21
DK526285D0 (da) 1985-11-14
NO854575L (no) 1986-05-20
NO166234B (no) 1991-03-11
DK526285A (da) 1986-05-17
EP0181637A3 (en) 1988-05-25
BR8505760A (pt) 1986-08-12
NO166234C (no) 1991-06-19
FI81819C (sv) 1990-12-10
ATE71640T1 (de) 1992-02-15
ES8706176A1 (es) 1987-06-01
DE3585207D1 (de) 1992-02-27
ES548924A0 (es) 1987-06-01

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