DE2327512A1 - Verfahren zum strangpressen von schaeumfaehigen thermoplastischen polymerisaten - Google Patents
Verfahren zum strangpressen von schaeumfaehigen thermoplastischen polymerisatenInfo
- Publication number
- DE2327512A1 DE2327512A1 DE2327512A DE2327512A DE2327512A1 DE 2327512 A1 DE2327512 A1 DE 2327512A1 DE 2327512 A DE2327512 A DE 2327512A DE 2327512 A DE2327512 A DE 2327512A DE 2327512 A1 DE2327512 A1 DE 2327512A1
- Authority
- DE
- Germany
- Prior art keywords
- calibration device
- temperature
- injection mold
- polymer
- density
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 24
- 229920001169 thermoplastic Polymers 0.000 title claims description 10
- 238000001125 extrusion Methods 0.000 title claims description 9
- 239000004416 thermosoftening plastic Substances 0.000 title description 3
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 239000006260 foam Substances 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 16
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 10
- 239000004793 Polystyrene Substances 0.000 claims description 9
- 229920002223 polystyrene Polymers 0.000 claims description 9
- 239000004604 Blowing Agent Substances 0.000 claims description 8
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 239000002667 nucleating agent Substances 0.000 claims description 3
- 239000003380 propellant Substances 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 229940050176 methyl chloride Drugs 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000000047 product Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 229960004543 anhydrous citric acid Drugs 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229940067573 brown iron oxide Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 241001233037 catfish Species 0.000 description 1
- 239000002666 chemical blowing agent Substances 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- 229960004106 citric acid Drugs 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- -1 dinitrosopentamethylene diamine Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910001872 inorganic gas Inorganic materials 0.000 description 1
- 239000001034 iron oxide pigment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002983 wood substitute Substances 0.000 description 1
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
- B29C44/34—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
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/642,991 US3986390A (en) | 1973-07-27 | 1975-12-22 | Apparatus for ultrasonic testing of marginal portions of metallic sheets or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2559972 | 1972-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2327512A1 true DE2327512A1 (de) | 1973-12-13 |
Family
ID=10230305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2327512A Pending DE2327512A1 (de) | 1972-06-01 | 1973-07-27 | Verfahren zum strangpressen von schaeumfaehigen thermoplastischen polymerisaten |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2327512A1 (enExample) |
| FR (1) | FR2186349A1 (enExample) |
| IT (1) | IT988826B (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD819236S1 (en) | 2016-08-24 | 2018-05-29 | Tangent Technologies Llc | Wood-grained polymer board |
| USD819235S1 (en) | 2016-08-24 | 2018-05-29 | Tangent Technologies Llc | Wood-grained polymer board |
| USD827869S1 (en) | 2016-08-24 | 2018-09-04 | Tangent Technologies Llc | Wood-grained polymer board |
| US10981350B1 (en) | 2015-08-24 | 2021-04-20 | Tangent Technologies Llc | Wood-grained polymer substrate |
-
1973
- 1973-05-30 FR FR7319631A patent/FR2186349A1/fr active Granted
- 1973-05-30 IT IT24858/73A patent/IT988826B/it active
- 1973-07-27 DE DE2327512A patent/DE2327512A1/de active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10981350B1 (en) | 2015-08-24 | 2021-04-20 | Tangent Technologies Llc | Wood-grained polymer substrate |
| USD819236S1 (en) | 2016-08-24 | 2018-05-29 | Tangent Technologies Llc | Wood-grained polymer board |
| USD819235S1 (en) | 2016-08-24 | 2018-05-29 | Tangent Technologies Llc | Wood-grained polymer board |
| USD827869S1 (en) | 2016-08-24 | 2018-09-04 | Tangent Technologies Llc | Wood-grained polymer board |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2186349A1 (en) | 1974-01-11 |
| FR2186349B3 (enExample) | 1976-05-21 |
| IT988826B (it) | 1975-04-30 |
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