GB1131890A - Improvements in and relating to machine and process for continuous manufacture of foamed products of polymeric thermoplastic composition - Google Patents
Improvements in and relating to machine and process for continuous manufacture of foamed products of polymeric thermoplastic compositionInfo
- Publication number
- GB1131890A GB1131890A GB4640166A GB4640166A GB1131890A GB 1131890 A GB1131890 A GB 1131890A GB 4640166 A GB4640166 A GB 4640166A GB 4640166 A GB4640166 A GB 4640166A GB 1131890 A GB1131890 A GB 1131890A
- Authority
- GB
- United Kingdom
- Prior art keywords
- belts
- foamed
- sheets
- adjusted
- unfoamed
- 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
- B29C44/30—Expanding the moulding material between endless belts or rollers
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/44—Compression means for making articles of indefinite length
- B29C43/48—Endless belts
- B29C2043/483—Endless belts cooperating with a second endless belt, i.e. double band presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Laminated Bodies (AREA)
Abstract
1,131,890. Rigid plastics foams; foamed plastics laminates. HERCULES Inc. 17 Oct., 1966 [15 Oct., 1965], No. 46401/66. Headings B5A and B5N. [Also in Division C3] Rigid sheets of foamed cross-linked thermoplastic polymers are prepared in an apparatus comprising two parallel belts and side pieces to form a cavity, the inlet and outlet ends being adjusted to correspond to the depth of the unfoamed and foamed sheets respectively. Two substantially parallel steel belts 16, 28 run over wheels 17 and 18 on a lower frame and 29 and 30 on an upper frame respectively. The upper frame is pivoted at 25 and the separation between the belt is adjusted by shims 71 and screw thread 73 operated by handle 82. The belts are backed by platens 59, 63 which also contain heating elements at the feed end and optional cooling tubes at the discharge end. Belts 50 running on tensioned pulley 52 and pulley 53 provide the side of the cavity. The unfoamed mixture, e.g. a thermoplastic polymer, blowing agent and cross-linking agent is fed in at the right hand end, the gap between rollers being adjusted to the depth of the sheet. The outlet end is set to the calculated depth of the foamed sheet, and the rate of motion of the belts to allow the material time to polymerize fully. Laminated foams may be prepared by passing in the unfoamed material between sheets of the material to be laminated or the side sheets of the laminate may be bonded to a preformed foam in the same apparatus.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49639165A | 1965-10-15 | 1965-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1131890A true GB1131890A (en) | 1968-10-30 |
Family
ID=23972424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4640166A Expired GB1131890A (en) | 1965-10-15 | 1966-10-17 | Improvements in and relating to machine and process for continuous manufacture of foamed products of polymeric thermoplastic composition |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1131890A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332754A (en) | 1976-05-12 | 1982-06-01 | Saint-Gobain Industries | Method for the continuous fabrication of cellular products of thermohardenable resin |
| CN108943555A (en) * | 2018-08-29 | 2018-12-07 | 福建海源自动化机械股份有限公司 | A kind of cooling feeding automatic production line of the foaming of foamed board |
| CN109049479A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | Vehicle boot lid board assembly line |
| CN117954700A (en) * | 2024-03-27 | 2024-04-30 | 厦门宝龙新能源发展有限公司 | Steel belt hot press |
-
1966
- 1966-10-17 GB GB4640166A patent/GB1131890A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332754A (en) | 1976-05-12 | 1982-06-01 | Saint-Gobain Industries | Method for the continuous fabrication of cellular products of thermohardenable resin |
| CN108943555A (en) * | 2018-08-29 | 2018-12-07 | 福建海源自动化机械股份有限公司 | A kind of cooling feeding automatic production line of the foaming of foamed board |
| CN108943555B (en) * | 2018-08-29 | 2023-10-20 | 江西海源复合材料科技股份有限公司 | Foaming cooling and material taking automatic production line for foaming plate |
| CN109049479A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | Vehicle boot lid board assembly line |
| CN109049479B (en) * | 2018-09-17 | 2024-03-15 | 张家港力勤机械有限公司 | Automobile trunk cover plate production line |
| CN117954700A (en) * | 2024-03-27 | 2024-04-30 | 厦门宝龙新能源发展有限公司 | Steel belt hot press |
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