SE9404309D0 - Blowing agents - Google Patents
Blowing agentsInfo
- Publication number
- SE9404309D0 SE9404309D0 SE9404309A SE9404309A SE9404309D0 SE 9404309 D0 SE9404309 D0 SE 9404309D0 SE 9404309 A SE9404309 A SE 9404309A SE 9404309 A SE9404309 A SE 9404309A SE 9404309 D0 SE9404309 D0 SE 9404309D0
- Authority
- SE
- Sweden
- Prior art keywords
- pref
- blowing agent
- blowing agents
- depressurising
- prepn
- Prior art date
Links
- 239000004604 Blowing Agent Substances 0.000 title abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- -1 HFC cpd.) Chemical class 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 150000008282 halocarbons Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- C08J9/149—Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143
-
- 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
- C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
-
- 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
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/03—Extrusion of the foamable blend
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
-
- 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
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
-
- 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
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
-
- 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
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Process for the prepn. of highly insulating polystyrene (copolymer) cellular plastic by (1) melting the polymer, pref. in an extruder, (2) adding and blending a blowing agent, pref. under pressure and (3) extruding the material through a mouthpiece whilst depressurising and cooling, uses a blowing agent comprising a chlorine-free halogenated hydrocarbon (e.g. HFC cpd.), low mol. wt. alcohol and water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9404309A SE504632C2 (en) | 1994-12-12 | 1994-12-12 | Prepn. of styrene polymer cellular plastics, useful as insulation materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9404309A SE504632C2 (en) | 1994-12-12 | 1994-12-12 | Prepn. of styrene polymer cellular plastics, useful as insulation materials |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9404309D0 true SE9404309D0 (en) | 1994-12-12 |
SE9404309L SE9404309L (en) | 1996-06-13 |
SE504632C2 SE504632C2 (en) | 1997-03-17 |
Family
ID=20396295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9404309A SE504632C2 (en) | 1994-12-12 | 1994-12-12 | Prepn. of styrene polymer cellular plastics, useful as insulation materials |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE504632C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19955146A1 (en) * | 1999-11-17 | 2001-05-23 | Basf Ag | Process for the production of foam sheets |
US6274640B1 (en) * | 2000-08-17 | 2001-08-14 | Owens Corning Fiberglas Technology, Inc. | Extruded foam product with 134a and alcohol blowing agent |
-
1994
- 1994-12-12 SE SE9404309A patent/SE504632C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE504632C2 (en) | 1997-03-17 |
SE9404309L (en) | 1996-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |