GB1537421A - Styrene polymer foam and preparation thereof - Google Patents
Styrene polymer foam and preparation thereofInfo
- 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
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.
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)
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)
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 |
AU1712088A (en) * | 1987-04-15 | 1988-11-04 | Dow Chemical Company, The | A method of extruding an alkenyl aromatic synthetic resin foamed body having 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 |
JP2922953B2 (en) * | 1988-10-17 | 1999-07-26 | ザ ダウ ケミカル カンパニー | Insulated alkenyl aromatic polymer foam |
US4916166A (en) * | 1988-10-17 | 1990-04-10 | The Dow Chemical Company | Insulating alkenyl aromatic polymer foam |
WO1990008814A1 (en) * | 1989-02-01 | 1990-08-09 | Asahi Glass Company Ltd. | Hydrochlorofluorocarbon azeotropic or azeotropic-like mixture |
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 |
CA2315229A1 (en) | 1997-12-18 | 1999-06-24 | Andrew N. Paquet | Foams comprising hfc-134 and a low solubility co-blowing agent and a process for making |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1229722B (en) * | 1957-11-29 | 1966-12-01 | Dow Chemical Co | Process for the production of foamable molding compounds from aromatic vinyl polymers |
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 |
-
1977
- 1977-01-14 CA CA269,739A patent/CA1086450A/en not_active Expired
- 1977-01-25 ES ES455332A patent/ES455332A1/en not_active Expired
- 1977-01-27 NL NLAANVRAGE7700842,A patent/NL170297C/en not_active IP Right Cessation
- 1977-01-31 GB GB3907/77A patent/GB1537421A/en not_active Expired
- 1977-01-31 IT IT47858/77A patent/IT1112146B/en active
- 1977-02-01 BE BE174560A patent/BE850971A/en not_active IP Right Cessation
- 1977-02-01 BR BR7700611A patent/BR7700611A/en unknown
- 1977-02-01 CH CH120377A patent/CH633816A5/en not_active IP Right Cessation
- 1977-02-02 FR FR7702924A patent/FR2340342A1/en active Granted
- 1977-02-02 SE SE7701144A patent/SE426072B/en not_active IP Right Cessation
- 1977-02-02 AU AU21876/77A patent/AU507080B2/en not_active Expired
- 1977-02-02 NO NO770347A patent/NO147989C/en unknown
- 1977-02-02 DK DK044477A patent/DK154776C/en active
- 1977-02-02 DE DE2704278A patent/DE2704278C2/en not_active Expired
- 1977-02-02 JP JP1058877A patent/JPS5295773A/en active Granted
Cited By (2)
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 |
---|---|
SE426072B (en) | 1982-12-06 |
DK44477A (en) | 1977-08-04 |
AU2187677A (en) | 1978-08-10 |
IT1112146B (en) | 1986-01-13 |
BE850971A (en) | 1977-08-01 |
ES455332A1 (en) | 1978-05-16 |
BR7700611A (en) | 1977-08-16 |
FR2340342B1 (en) | 1983-07-01 |
CA1086450A (en) | 1980-09-23 |
FR2340342A1 (en) | 1977-09-02 |
NO147989C (en) | 1983-07-20 |
JPS5295773A (en) | 1977-08-11 |
NL7700842A (en) | 1977-08-05 |
NL170297B (en) | 1982-05-17 |
CH633816A5 (en) | 1982-12-31 |
AU507080B2 (en) | 1980-01-31 |
DK154776C (en) | 1989-05-16 |
NO147989B (en) | 1983-04-11 |
JPS577175B2 (en) | 1982-02-09 |
SE7701144L (en) | 1977-08-04 |
DE2704278C2 (en) | 1983-08-04 |
DK154776B (en) | 1988-12-19 |
NL170297C (en) | 1982-10-18 |
DE2704278A1 (en) | 1977-08-04 |
NO770347L (en) | 1977-08-04 |
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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 |