GB1517219A - Process for production of cellular thermoplastics bodies - Google Patents
Process for production of cellular thermoplastics bodiesInfo
- Publication number
- GB1517219A GB1517219A GB37485/75A GB3748575A GB1517219A GB 1517219 A GB1517219 A GB 1517219A GB 37485/75 A GB37485/75 A GB 37485/75A GB 3748575 A GB3748575 A GB 3748575A GB 1517219 A GB1517219 A GB 1517219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- ethylene
- orifice
- polymer
- density polyethylene
- 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
-
- 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
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
- B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
-
- 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
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/05—Use of one or more blowing agents together
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/13—Cell size and distribution control while molding a foam
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50527474A | 1974-09-12 | 1974-09-12 | |
US05/583,663 US3975473A (en) | 1974-09-12 | 1975-06-04 | Process for production of cellular thermoplastic bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1517219A true GB1517219A (en) | 1978-07-12 |
Family
ID=27055082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37485/75A Expired GB1517219A (en) | 1974-09-12 | 1975-09-11 | Process for production of cellular thermoplastics bodies |
Country Status (14)
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4043715A (en) * | 1975-06-02 | 1977-08-23 | Ex-Cell-O Corporation | Pumped injection of gas for making foamed plastic |
US4059466A (en) * | 1976-08-02 | 1977-11-22 | Nordson Corporation | Hot melt thermoplastic adhesive foam system |
US4200207A (en) * | 1978-02-01 | 1980-04-29 | Nordson Corporation | Hot melt adhesive foam pump system |
JPS54122892A (en) * | 1978-02-28 | 1979-09-22 | Furukawa Electric Co Ltd:The | Method of and apparatus for manufacturing foam insulation electric cable |
JPS54178779U (US06818201-20041116-C00086.png) * | 1978-06-06 | 1979-12-17 | ||
US4343755A (en) * | 1978-09-06 | 1982-08-10 | Union Carbide Corporation | Process for extruding ethylene polymers |
US4211523A (en) * | 1978-11-29 | 1980-07-08 | Hoover Universal, Inc. | Gas-flow control apparatus for equipment for producing foamed plastic |
DE2945275C2 (de) * | 1979-11-09 | 1984-02-02 | Wieland-Werke Ag, 7900 Ulm | Verfahren zum Ummanteln eines Metallrohres mit einer wärmeisolierenden Schaumstoffschicht |
JPS56167201A (en) * | 1980-05-26 | 1981-12-22 | Hitachi Cable | Foamable polyolefin insulated wire |
US4679710A (en) * | 1981-06-22 | 1987-07-14 | Nordson Corporation | Hot melt foam adhesive system |
JPS5981857U (ja) * | 1982-11-24 | 1984-06-02 | 矢野技研株式会社 | 管断水用の弁体 |
WO1989000918A2 (en) * | 1987-07-29 | 1989-02-09 | Massachusetts Institute Of Technology | A method of producing microcellular foams and microcellular foams of semi-crystalline polymeric materials |
US5160674A (en) * | 1987-07-29 | 1992-11-03 | Massachusetts Institute Of Technology | Microcellular foams of semi-crystaline polymeric materials |
US5124095A (en) * | 1990-10-30 | 1992-06-23 | Quantum Plastics, Inc. | Process of injection molding thermoplastic foams |
US5483020A (en) * | 1994-04-12 | 1996-01-09 | W. L. Gore & Associates, Inc. | Twin-ax cable |
US5574250A (en) * | 1995-02-03 | 1996-11-12 | W. L. Gore & Associates, Inc. | Multiple differential pair cable |
US6335490B1 (en) * | 1995-06-07 | 2002-01-01 | Mitsubishi Cable Industries, Ltd. | Insulating material for coaxial cable, coaxial cable and method for producing coaxial cable |
US5821273A (en) * | 1996-05-22 | 1998-10-13 | E. I. Du Pont De Nemours And Company | Extrusion foaming of fluoropolymers |
US6884823B1 (en) | 1997-01-16 | 2005-04-26 | Trexel, Inc. | Injection molding of polymeric material |
US5932691A (en) * | 1997-12-05 | 1999-08-03 | Union Carbide Chemicals & Plastics Technology Corporation | Process for devolatilization |
US6599626B1 (en) | 1998-05-26 | 2003-07-29 | Union Carbide Chemicals & Plastics Technology Corporation | Coaxial cable |
US6616434B1 (en) * | 2000-08-10 | 2003-09-09 | Trexel, Inc. | Blowing agent metering system |
EP2504384B1 (en) * | 2009-11-25 | 2018-03-21 | Dow Global Technologies LLC | Nanoporous polymeric foam having high porosity |
US20190118432A1 (en) * | 2017-10-23 | 2019-04-25 | Trexel, Inc. | Blowing agent introduction in polymer foam processing |
CN109627482A (zh) * | 2018-10-24 | 2019-04-16 | 佛山市高明科力机械有限公司 | 超临界二氧化碳物理发泡pe环保密封垫产品的生产线以及生产工艺 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948020A (en) * | 1953-11-06 | 1960-08-09 | Anaconda Wire & Cable Co | Method of making high frequency cable |
US2928130A (en) * | 1955-09-08 | 1960-03-15 | Western Electric Co | Methods for making cellular plastic products |
US3068532A (en) * | 1958-12-09 | 1962-12-18 | Union Carbide Corp | Method of preparing insulated electrical conductors |
US3072584A (en) * | 1959-12-21 | 1963-01-08 | Dow Chemical Co | Method of production of multi-celled extruded foamed polystyrene, polyethylene and polypropylene |
US3120377A (en) * | 1960-01-07 | 1964-02-04 | Emulsol Egg Products Corp | Apparatus for producing dressing |
US3071809A (en) * | 1960-05-09 | 1963-01-08 | Western Electric Co | Methods of and apparatus for extruding plastic materials |
NL291716A (US06818201-20041116-C00086.png) * | 1962-04-21 | |||
US3268636A (en) * | 1963-07-01 | 1966-08-23 | Union Carbide Corp | Method and apparatus for injection molding foamed plastic articles |
US3436446A (en) * | 1966-06-08 | 1969-04-01 | Union Carbide Corp | Molding of foamed thermoplastic articles |
US3663668A (en) * | 1968-02-28 | 1972-05-16 | Fmc Corp | Sonic nucleation in foam extrusion |
GB1485587A (en) * | 1974-01-22 | 1977-09-14 | Furukawa Electric Co Ltd | Process of producing a foamed thermoplastics resin articl |
-
1975
- 1975-06-04 US US05/583,663 patent/US3975473A/en not_active Expired - Lifetime
- 1975-07-25 DE DE2533218A patent/DE2533218C3/de not_active Expired
- 1975-08-18 CA CA233,684A patent/CA1069662A/en not_active Expired
- 1975-09-09 AU AU84642/75A patent/AU501089B2/en not_active Expired
- 1975-09-10 CH CH1173275A patent/CH605098A5/xx not_active IP Right Cessation
- 1975-09-11 BR BR7505829*A patent/BR7505829A/pt unknown
- 1975-09-11 DK DK405675A patent/DK145449C/da not_active IP Right Cessation
- 1975-09-11 NL NLAANVRAGE7510712,A patent/NL186301C/xx not_active IP Right Cessation
- 1975-09-11 ES ES440868A patent/ES440868A1/es not_active Expired
- 1975-09-11 IT IT27165/75A patent/IT1042490B/it active
- 1975-09-11 JP JP10952775A patent/JPS5545019B2/ja not_active Expired
- 1975-09-11 FR FR7527914A patent/FR2284432A1/fr active Granted
- 1975-09-11 SE SE7510152A patent/SE415009B/xx not_active IP Right Cessation
- 1975-09-11 GB GB37485/75A patent/GB1517219A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE415009B (sv) | 1980-09-01 |
ES440868A1 (es) | 1977-06-01 |
DE2533218C3 (de) | 1978-10-26 |
DE2533218B2 (de) | 1978-03-02 |
NL186301B (nl) | 1990-06-01 |
AU8464275A (en) | 1977-03-17 |
NL186301C (nl) | 1990-11-01 |
AU501089B2 (en) | 1979-06-07 |
FR2284432A1 (fr) | 1976-04-09 |
DK405675A (da) | 1976-03-13 |
CH605098A5 (US06818201-20041116-C00086.png) | 1978-09-29 |
SE7510152L (sv) | 1976-03-15 |
NL7510712A (nl) | 1976-03-16 |
DK145449B (da) | 1982-11-22 |
DE2533218A1 (de) | 1976-04-01 |
JPS5545019B2 (US06818201-20041116-C00086.png) | 1980-11-15 |
BR7505829A (pt) | 1976-08-03 |
US3975473A (en) | 1976-08-17 |
FR2284432B1 (US06818201-20041116-C00086.png) | 1979-06-22 |
CA1069662A (en) | 1980-01-15 |
DK145449C (da) | 1983-04-25 |
IT1042490B (it) | 1980-01-30 |
JPS5153569A (US06818201-20041116-C00086.png) | 1976-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940911 |