IE35447B1 - Foamable thermoplastic compositions - Google Patents

Foamable thermoplastic compositions

Info

Publication number
IE35447B1
IE35447B1 IE876/71A IE87671A IE35447B1 IE 35447 B1 IE35447 B1 IE 35447B1 IE 876/71 A IE876/71 A IE 876/71A IE 87671 A IE87671 A IE 87671A IE 35447 B1 IE35447 B1 IE 35447B1
Authority
IE
Ireland
Prior art keywords
compositions
foamable thermoplastic
azodicarbonamide
aug
july
Prior art date
Application number
IE876/71A
Other versions
IE35447L (en
Original Assignee
Fisons Ltd
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 Fisons Ltd filed Critical Fisons Ltd
Publication of IE35447L publication Critical patent/IE35447L/en
Publication of IE35447B1 publication Critical patent/IE35447B1/en

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
    • C08J9/0066—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
    • C08J9/04—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
    • C08J9/10—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 developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1360392 Foamable thermoplastic compositions and foams thereof FISONS Ltd 5 July 1971 [31 July 1970 5 Aug 1970 20 Aug 1970] 37047/70 37779/70 and 41006/70 Heading C3C [Also in Division B5] A foamed plastics material is made by heating a foamable thermoplastic composition comprising a thermoplastic material selected from olefin polymers and copolymers, styrene polymers and copolymers, and rigid polyvinyl chloride; azodicarbonamide; and at least one finely divided material having a BET surface area of 200-350 m.<SP>2</SP>/g. The latter material is preferably one that contains water (free or combined) that can be released at temperatures below 250‹ C., particularly fume and colloidal silicas, gypsum, CaCO 3 .6H 2 O, CaO.6H 2 O, hydrated potassium carbonate, copper, ferric, and magnesium sulphates, hydrated magnesium benzoate and cerous acetate and nitrate. The compositions may also contain dyes, pigments, stabilizers, dispersants, fillers, extenders, other blowing agents, e.g. benzene sulphon hydrazide, and kickers, the latter including compounds of Zn, Cd Sn, Pb, urea, ethanolamine, glycols. Preferred additives are Mg, Zn or Ba stearates, and also oxamide (as nucleating agent). The composition may be fused, prior to foaming, by heating at 100-150‹ C. for 2À5-0À5 min., as is normally foamed at 150-280‹ C. It may be formed into a sheet by extrusion, casting, calendering or spreading as a powder blend; also applied to a backing member optionally overcoated with a plastics layer, or it may be moulded by conventional techniques. Examples detail compositions prepared from polyethylene, azodicarbonamide and either silica, optionally with magnesium stearate, MgSO 4 .7H 2 O or CaSO 4 .2H 2 O. [GB1360392A]
IE876/71A 1970-07-31 1971-07-09 Foamable thermoplastic compositions IE35447B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3704770A GB1360392A (en) 1970-07-31 1970-07-31 Foamable thermoplastic compositions
GB3777970 1970-08-05
GB4100670 1970-08-26

Publications (2)

Publication Number Publication Date
IE35447L IE35447L (en) 1972-01-31
IE35447B1 true IE35447B1 (en) 1976-02-18

Family

ID=27259408

Family Applications (1)

Application Number Title Priority Date Filing Date
IE876/71A IE35447B1 (en) 1970-07-31 1971-07-09 Foamable thermoplastic compositions

Country Status (13)

Country Link
JP (1) JPS5540621B1 (en)
AU (1) AU450619B2 (en)
BE (1) BE770503A (en)
CA (1) CA980050A (en)
CH (1) CH536330A (en)
DE (1) DE2138173B2 (en)
DK (1) DK129051B (en)
ES (1) ES393703A1 (en)
FR (1) FR2103766A5 (en)
GB (1) GB1360392A (en)
IE (1) IE35447B1 (en)
NL (1) NL171166C (en)
SE (1) SE400983B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2560539C2 (en) * 1975-05-07 1990-02-08 Deutsche Solvay-Werke Gmbh, 5650 Solingen, De
DE2520229A1 (en) * 1975-05-07 1976-11-18 Solvay Werke Gmbh Frosted translucent PVC containers by blow extrusion - using PVC mix having low filler content and no plasticiser
WO1990003997A1 (en) * 1988-10-07 1990-04-19 Pacific Dunlop Limited Effect of using chemical modifiers in the curing of polyurethane foams
AU642131B2 (en) * 1988-10-07 1993-10-14 Pacific Dunlop Limited Effect of using chemical modifiers in the curing of polyurethane foams
PL212057B1 (en) * 2006-05-09 2012-08-31 Termo Organika Społka Z Ograniczoną Odpowiedzialnością Modified foaming and foamed materials and the manner of obtaining it
WO2020229416A1 (en) * 2019-05-14 2020-11-19 Nouryon Chemicals International B.V. Pvc foams

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783269A (en) * 1953-10-14 1957-09-18 Genatosan Ltd Production of organic plastic materials in expanded or cellular form
GB964291A (en) * 1962-04-13 1964-07-22 Monsanto Chemicals Production of shaped toughened polystyrene articles of low density
GB1052803A (en) * 1963-02-11
FR1372052A (en) * 1963-05-21 1964-09-11 Siegle & Co Gmbh G Activators for the pressureless production of polyvinyl chloride foams and its copolymers
DE1258082B (en) * 1964-10-16 1968-01-04 Huels Chemische Werke Ag Process for the production of open-cell soft polyvinyl chloride foams
US3696059A (en) * 1968-06-13 1972-10-03 Furukawa Electric Co Ltd Process for preparing olefin polymer foams

Also Published As

Publication number Publication date
GB1360392A (en) 1974-07-17
DK129051B (en) 1974-08-12
CA980050A (en) 1975-12-16
NL7110547A (en) 1972-02-02
FR2103766A5 (en) 1972-04-14
CH536330A (en) 1973-04-30
IE35447L (en) 1972-01-31
ES393703A1 (en) 1974-06-01
BE770503A (en) 1972-01-26
SE400983B (en) 1978-04-17
DE2138173B2 (en) 1981-04-02
AU3132171A (en) 1973-01-18
AU450619B2 (en) 1974-07-18
DE2138173C3 (en) 1989-01-12
JPS5540621B1 (en) 1980-10-18
DE2138173A1 (en) 1972-02-10
NL171166C (en) 1983-02-16
NL171166B (en) 1982-09-16

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