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GB1537421A - Styrene polymer foam and preparation thereof - Google Patents

Styrene polymer foam and preparation thereof

Info

Publication number
GB1537421A
GB1537421A GB3907/77A GB390777A GB1537421A GB 1537421 A GB1537421 A GB 1537421A GB 3907/77 A GB3907/77 A GB 3907/77A GB 390777 A GB390777 A GB 390777A GB 1537421 A GB1537421 A GB 1537421A
Authority
GB
United Kingdom
Prior art keywords
foam articles
low
cells
permeability
cross sectional
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
GB3907/77A
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.)
Dow Chemical Co
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 GB1537421A publication Critical patent/GB1537421A/en
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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers

Landscapes

  • 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)

Abstract

Thermoplastic synthetic resin foam articles are described which, in accordance with machine production, are elongated principally in the longitudinal direction and have a cross sectional dimension of at least 6.35 mm and a cross sectional area of at least 51.6 cm<2>, where the cells have a mean cell size in the range from 0.1 to 1.2 mm. These cells contain at least one low-permeability halogenated blowing agent. The blowing agent remains in the cells during use of the foam articles, for example for insulation purposes, and there is no significant release thereof into the atmosphere. On the one hand, this prevents readily volatile halogenated blowing agents entering the ozone layer around the earth, where they can have a damaging effect, and on the other hand very low thermal conductivity of the foam articles is achieved, significantly lower than that of the corresponding foam articles containing air instead of the low-permeability blowing agents.
GB3907/77A 1976-02-03 1977-01-31 Styrene polymer foam and preparation thereof Expired GB1537421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65469076A 1976-02-03 1976-02-03

Publications (1)

Publication Number Publication Date
GB1537421A true GB1537421A (en) 1978-12-29

Family

ID=24625864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3907/77A Expired GB1537421A (en) 1976-02-03 1977-01-31 Styrene polymer foam and preparation thereof

Country Status (15)

Country Link
JP (1) JPS5295773A (en)
AU (1) AU507080B2 (en)
BE (1) BE850971A (en)
BR (1) BR7700611A (en)
CA (1) CA1086450A (en)
CH (1) CH633816A5 (en)
DE (1) DE2704278C2 (en)
DK (1) DK154776C (en)
ES (1) ES455332A1 (en)
FR (1) FR2340342A1 (en)
GB (1) GB1537421A (en)
IT (1) IT1112146B (en)
NL (1) NL170297C (en)
NO (1) NO147989C (en)
SE (1) SE426072B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125796A (en) * 1982-08-23 1984-03-14 Cosden Technology Flame retarding extruded plastics foam compositions
US5324458A (en) * 1990-01-18 1994-06-28 Amoco Corporation Method of molding a styrenic foam by extrusion

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738719A1 (en) * 1977-08-27 1979-03-08 Bayer Ag Process for the production of foamed plastics
US4528300A (en) * 1984-01-31 1985-07-09 The Dow Chemical Company Process for producing dimensionally stable polyolefin foams using environmentally acceptable blowing agent systems
BR8807460A (en) * 1987-04-15 1990-04-10 Dow Chemical Co METHOD OF EXTRUSION OF A SYNTHETIC AROMATIC RESIN FOAM BODY WITH ALKENYLES WITH CLOSED CELLS
JPH01247434A (en) * 1988-03-30 1989-10-03 Sekisui Plastics Co Ltd Production of flame-retarding styrene resin foam
JP2835726B2 (en) * 1988-05-16 1998-12-14 株式会社 ジェイエスピー Method for producing plate-like polystyrene resin foam
DE3829633A1 (en) * 1988-09-01 1990-03-15 Basf Ag METHOD FOR PRODUCING FOAM PANELS WITH HIGH PRESSURE RESISTANCE AND HIGH THERMAL INSULATION
US4912140A (en) * 1988-09-21 1990-03-27 The Dow Chemical Company Expandable and expanded alkenyl aromatic polymer particles
US4916166A (en) * 1988-10-17 1990-04-10 The Dow Chemical Company Insulating alkenyl aromatic polymer foam
RU2073693C1 (en) * 1988-10-17 1997-02-20 Дзе Дау Кемикал Компани Method for production of frothed polystyrene
ES2083978T3 (en) * 1989-02-01 1996-05-01 Asahi Glass Co Ltd AZEOTROPIC MIXTURE OR SIMILAR TO AN AZEOTROPIC MIXTURE BASED ON HYDROGENATED, CHLORINATED AND FLUORATED HYDROCARBONS.
US5320683A (en) * 1989-02-06 1994-06-14 Asahi Glass Company Ltd. Azeotropic or azeotropic-like composition of hydrochlorofluoropropane
US5120481A (en) * 1989-02-28 1992-06-09 U.C. Industries, Inc. Process for preparing extruded foam bodies
DE3930594A1 (en) * 1989-09-13 1991-03-14 Gefinex Jackon Gmbh Moulded foam prods., esp. of polystyrene foam - by extrusion, using mixt. of above 30 wt. per cent 1,1-di:fluoro-1-chloro-ethane and water and-or nitrogen as blowing agent
US5011866A (en) * 1989-11-08 1991-04-30 The Dow Chemical Company Insulating alkenyl aromatic polymer foam
DE3939986A1 (en) * 1989-12-02 1991-06-06 Gefinex Gmbh Prodn. of foams of polystyrene or polyethylene - using chloro:di:fluoro:methane contg. ammonium bi:carbonate or other ammonium cpd. as blowing agent
US6121337A (en) * 1990-03-23 2000-09-19 E. I. Du Pont De Nemours And Company Compositions containing 1,1,2,2-tetrafluoroethane (HFC-134) for closed-cell polymer foam production
US5106882A (en) * 1991-05-28 1992-04-21 The Dow Chemical Company Insulating alkenyl aromatic polymer foam
JPH0553140U (en) * 1991-12-20 1993-07-13 星和電機株式会社 Waterproof retainer for cable connection
WO1999031170A1 (en) 1997-12-18 1999-06-24 The Dow Chemical Company Foams comprising hfc-134 and a low solubility co-blowing agent and a process for making

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886811A (en) * 1957-11-29 1962-01-10 Dow Chemical Co Method of making a latent-foaming polymeric composition
US3287477A (en) * 1964-11-12 1966-11-22 Koppers Co Inc Process and apparatus for extruding a foamed plastic
CA975500A (en) * 1969-02-06 1975-09-30 Joseph G. Spitzer Structures such as applicator pads for cleaning and other purposes, propellant compositions for forming the same, and process
CH572269A5 (en) * 1972-07-20 1976-01-30 Bbc Brown Boveri & Cie

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125796A (en) * 1982-08-23 1984-03-14 Cosden Technology Flame retarding extruded plastics foam compositions
US5324458A (en) * 1990-01-18 1994-06-28 Amoco Corporation Method of molding a styrenic foam by extrusion

Also Published As

Publication number Publication date
NO147989C (en) 1983-07-20
NO770347L (en) 1977-08-04
JPS577175B2 (en) 1982-02-09
DK154776B (en) 1988-12-19
IT1112146B (en) 1986-01-13
CH633816A5 (en) 1982-12-31
ES455332A1 (en) 1978-05-16
SE7701144L (en) 1977-08-04
AU2187677A (en) 1978-08-10
DK154776C (en) 1989-05-16
NO147989B (en) 1983-04-11
CA1086450A (en) 1980-09-23
DE2704278C2 (en) 1983-08-04
BR7700611A (en) 1977-08-16
FR2340342A1 (en) 1977-09-02
DE2704278A1 (en) 1977-08-04
NL170297C (en) 1982-10-18
JPS5295773A (en) 1977-08-11
NL170297B (en) 1982-05-17
AU507080B2 (en) 1980-01-31
FR2340342B1 (en) 1983-07-01
NL7700842A (en) 1977-08-05
DK44477A (en) 1977-08-04
BE850971A (en) 1977-08-01
SE426072B (en) 1982-12-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
476H Application made for correction of error (sect. 76/1949)
476 Application for correction of clerical errors now open to opposition (sect. 76/1949)
771 Application made for declaration of non-infringement (sect. 71/1977)
476D Proceeding under section 76 patents act 1949
771D Case decided by the comptroller ** application withdrawn (sect. 71/1977)
476G Case decided by the comptroller ** correction allowed (sect. 76/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
476A Correction allowed (sect. 76/1949)
SP Amendment (slips) printed
PE20 Patent expired after termination of 20 years

Effective date: 19970130