GB1048999A - Thermoplastic resin foams - Google Patents
Thermoplastic resin foamsInfo
- Publication number
- GB1048999A GB1048999A GB43151/63A GB4315163A GB1048999A GB 1048999 A GB1048999 A GB 1048999A GB 43151/63 A GB43151/63 A GB 43151/63A GB 4315163 A GB4315163 A GB 4315163A GB 1048999 A GB1048999 A GB 1048999A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copolymers
- thermoplastic resin
- extruding
- rate
- blowing agent
- 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
- C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
-
- 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
-
- 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
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)
- General Chemical & Material Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A process for producing foamed articles comprises mixing a blowing agent with molten thermoplastic resin and extruding the resultant solution from a superatmospheric pressure zone into an atmospheric pressure zone, the rate of extruding being at least as high as the rate at which the resin fractures when extruded without dissolved blowing agent. Suitable resins are polyethylene, polypropylene, polybutene, polystyrene, ethylene copolymers, styrene copolymers, polyhexamethylene adipamide, polycaprolactam, polymethylmethacrylate, methylmethacrylate copolymers, polyoxymethylene, polyvinyl chloride, polyvinylidene chloride, polychlorotrifluoroethylene, copolymers of tetrafluoroethylene and hexafluoropropylene, polycarbonate resins and cellulose resins.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP0032921 | 1963-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1048999A true GB1048999A (en) | 1966-11-23 |
Family
ID=7372980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB43151/63A Expired GB1048999A (en) | 1963-11-05 | 1963-11-01 | Thermoplastic resin foams |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE639972A (en) |
DE (1) | DE1569257B2 (en) |
GB (1) | GB1048999A (en) |
NL (1) | NL300591A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1778630B1 (en) * | 1967-05-26 | 1974-03-28 | Ugine Kuhlmann | PROCESS FOR MANUFACTURING UNPLACED POLYMERS OR COPOLYMERIC FOAMS |
GB2143237A (en) * | 1983-07-12 | 1985-02-06 | Raychem Corp | Electrically insulating foamed polymers |
DE19740058C2 (en) * | 1997-09-12 | 2001-10-31 | Mannesmann Vdo Ag | Process for the manufacture of a float, fuel-resistant float and use of particles pressed together and produced by extrusion |
EP3162531A1 (en) * | 2015-10-30 | 2017-05-03 | Technoform Tailored Solutions Holding GmbH | Method for manufacturing foamed profiles and foamed profiles obtainable by the method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2929829A1 (en) * | 1979-07-23 | 1981-02-26 | Basf Ag | Quickly dissolving foamed lacquer resin prepn. - by extruding lacquer resin melt contg. distributed inert gas into lower pressure zone |
JPS57109834A (en) * | 1980-12-27 | 1982-07-08 | Sekisui Plastics Co Ltd | Foamed polystyrene sheet |
-
0
- NL NL300591D patent/NL300591A/xx unknown
- BE BE639972D patent/BE639972A/xx unknown
-
1963
- 1963-11-01 GB GB43151/63A patent/GB1048999A/en not_active Expired
- 1963-11-05 DE DE19631569257 patent/DE1569257B2/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1778630B1 (en) * | 1967-05-26 | 1974-03-28 | Ugine Kuhlmann | PROCESS FOR MANUFACTURING UNPLACED POLYMERS OR COPOLYMERIC FOAMS |
GB2143237A (en) * | 1983-07-12 | 1985-02-06 | Raychem Corp | Electrically insulating foamed polymers |
DE19740058C2 (en) * | 1997-09-12 | 2001-10-31 | Mannesmann Vdo Ag | Process for the manufacture of a float, fuel-resistant float and use of particles pressed together and produced by extrusion |
EP3162531A1 (en) * | 2015-10-30 | 2017-05-03 | Technoform Tailored Solutions Holding GmbH | Method for manufacturing foamed profiles and foamed profiles obtainable by the method |
Also Published As
Publication number | Publication date |
---|---|
BE639972A (en) | |
NL300591A (en) | |
DE1569257A1 (en) | 1969-04-10 |
DE1569257B2 (en) | 1972-09-07 |
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