DE1253913B - Verfahren zum Faerben von Polystyrolkoernern - Google Patents
Verfahren zum Faerben von PolystyrolkoernernInfo
- Publication number
- DE1253913B DE1253913B DEK54263A DEK0054263A DE1253913B DE 1253913 B DE1253913 B DE 1253913B DE K54263 A DEK54263 A DE K54263A DE K0054263 A DEK0054263 A DE K0054263A DE 1253913 B DE1253913 B DE 1253913B
- Authority
- DE
- Germany
- Prior art keywords
- grains
- polymer
- dye
- weight
- pressure
- 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 19
- 238000004040 coloring Methods 0.000 title claims description 6
- 239000004793 Polystyrene Substances 0.000 title description 11
- 229920002223 polystyrene Polymers 0.000 title description 11
- 229920000642 polymer Polymers 0.000 claims description 38
- 239000000975 dye Substances 0.000 claims description 34
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 22
- 239000003960 organic solvent Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000004580 weight loss Effects 0.000 claims description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 239000008187 granular material Substances 0.000 description 17
- 239000006260 foam Substances 0.000 description 16
- 239000012736 aqueous medium Substances 0.000 description 15
- 239000011324 bead Substances 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 239000002245 particle Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000002609 medium Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000000375 suspending agent Substances 0.000 description 9
- 238000004043 dyeing Methods 0.000 description 7
- 239000004604 Blowing Agent Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000001045 blue dye Substances 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 239000001506 calcium phosphate Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 4
- 229940078499 tricalcium phosphate Drugs 0.000 description 4
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 4
- 235000019731 tricalcium phosphate Nutrition 0.000 description 4
- JUUJTYPMICHIEM-UHFFFAOYSA-N 1,4-bis(ethylamino)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(NCC)=CC=C2NCC JUUJTYPMICHIEM-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000001273 butane Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 229920001213 Polysorbate 20 Polymers 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 239000010685 fatty oil Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- 235000019239 indanthrene blue RS Nutrition 0.000 description 2
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- ULYZAYCEDJDHCC-UHFFFAOYSA-N isopropyl chloride Chemical compound CC(C)Cl ULYZAYCEDJDHCC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 2
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- TVRGPOFMYCMNRB-UHFFFAOYSA-N quinizarine green ss Chemical compound C1=CC(C)=CC=C1NC(C=1C(=O)C2=CC=CC=C2C(=O)C=11)=CC=C1NC1=CC=C(C)C=C1 TVRGPOFMYCMNRB-UHFFFAOYSA-N 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010557 suspension polymerization reaction Methods 0.000 description 2
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 2
- 229940029284 trichlorofluoromethane Drugs 0.000 description 2
- BLFZMXOCPASACY-UHFFFAOYSA-N 1,4-bis(propan-2-ylamino)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(NC(C)C)=CC=C2NC(C)C BLFZMXOCPASACY-UHFFFAOYSA-N 0.000 description 1
- UEJJHQNACJXSKW-UHFFFAOYSA-N 2-(2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)-dione Chemical compound O=C1C2=CC=CC=C2C(=O)N1C1CCC(=O)NC1=O UEJJHQNACJXSKW-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- BTOVVHWKPVSLBI-UHFFFAOYSA-N 2-methylprop-1-enylbenzene Chemical class CC(C)=CC1=CC=CC=C1 BTOVVHWKPVSLBI-UHFFFAOYSA-N 0.000 description 1
- CEBRPXLXYCFYGU-UHFFFAOYSA-N 3-methylbut-1-enylbenzene Chemical compound CC(C)C=CC1=CC=CC=C1 CEBRPXLXYCFYGU-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000589614 Pseudomonas stutzeri Species 0.000 description 1
- 206010037867 Rash macular Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- UPIWXMRIPODGLE-UHFFFAOYSA-N butyl benzenecarboperoxoate Chemical compound CCCCOOC(=O)C1=CC=CC=C1 UPIWXMRIPODGLE-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- BQFCCCIRTOLPEF-UHFFFAOYSA-N chembl1976978 Chemical compound CC1=CC=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 BQFCCCIRTOLPEF-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- -1 fatty acid esters Chemical class 0.000 description 1
- 235000004426 flaxseed Nutrition 0.000 description 1
- 239000001046 green dye Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- SNMVRZFUUCLYTO-UHFFFAOYSA-N n-propyl chloride Chemical compound CCCCl SNMVRZFUUCLYTO-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- LJFWQNJLLOFIJK-UHFFFAOYSA-N solvent violet 13 Chemical compound C1=CC(C)=CC=C1NC1=CC=C(O)C2=C1C(=O)C1=CC=CC=C1C2=O LJFWQNJLLOFIJK-UHFFFAOYSA-N 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 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
- C08J9/22—After-treatment of expandable particles; Forming foamed products
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Coloring (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US385416A US3399025A (en) | 1964-07-27 | 1964-07-27 | Process for dyeing thermoplastic styrene polymer granules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1253913B true DE1253913B (de) | 1967-11-09 |
Family
ID=23521293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK54263A Pending DE1253913B (de) | 1964-07-27 | 1964-10-15 | Verfahren zum Faerben von Polystyrolkoernern |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3399025A (en, 2012) |
| JP (1) | JPS525532B1 (en, 2012) |
| BE (1) | BE654382A (en, 2012) |
| CH (1) | CH442740A (en, 2012) |
| DE (1) | DE1253913B (en, 2012) |
| ES (1) | ES305965A1 (en, 2012) |
| GB (1) | GB1064490A (en, 2012) |
| NL (1) | NL144964B (en, 2012) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3477799A (en) * | 1966-07-19 | 1969-11-11 | Charles S Garnett | Treatment of plastic surfaces |
| US3632288A (en) * | 1969-05-08 | 1972-01-04 | Foster Grant Co Inc | Process for dyeing styrene polymers |
| US4018946A (en) * | 1971-01-15 | 1977-04-19 | Sealed Air Corporation | Production of heat-expandable styrene-polymer bit-pieces |
| JPS541620A (en) * | 1977-06-06 | 1979-01-08 | Gakken Co Ltd | Projector capable of projecting two kinds of images |
| EP0014280A1 (en) * | 1979-02-07 | 1980-08-20 | Foley Packaging Limited | Improvements relating to the production of coloured expandable polystyrene |
| US4546134A (en) * | 1983-03-25 | 1985-10-08 | Day Star Concepts | Coated, heat shrinkable expanded polystyrene |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020247A (en) * | 1960-06-06 | 1962-02-06 | Koppers Co Inc | Dyeing of expandable polystyrene |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2485160A (en) * | 1948-10-23 | 1949-10-18 | Rohm & Haas | Process for the epoxidation of esters of oleic and linoleic acids |
| BE571896A (en, 2012) * | 1957-10-09 | |||
| US3059987A (en) * | 1960-05-12 | 1962-10-23 | Koppers Co Inc | Dyeing expanded polystyrene articles with disperse dyes |
| DE1163024B (de) * | 1962-06-06 | 1964-02-13 | Basf Ag | Verfahren zur Herstellung von Suspensionspolymerisaten |
-
1964
- 1964-07-27 US US385416A patent/US3399025A/en not_active Expired - Lifetime
- 1964-10-14 NL NL646411937A patent/NL144964B/xx unknown
- 1964-10-14 BE BE654382D patent/BE654382A/xx unknown
- 1964-10-15 DE DEK54263A patent/DE1253913B/de active Pending
- 1964-10-28 CH CH1395964A patent/CH442740A/de unknown
- 1964-11-12 ES ES0305965A patent/ES305965A1/es not_active Expired
- 1964-11-17 GB GB46852/64A patent/GB1064490A/en not_active Expired
- 1964-12-28 JP JP39073940A patent/JPS525532B1/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020247A (en) * | 1960-06-06 | 1962-02-06 | Koppers Co Inc | Dyeing of expandable polystyrene |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1064490A (en) | 1967-04-05 |
| ES305965A1 (es) | 1965-03-16 |
| US3399025A (en) | 1968-08-27 |
| BE654382A (en, 2012) | 1965-02-01 |
| NL144964B (nl) | 1975-02-17 |
| NL6411937A (en, 2012) | 1966-01-28 |
| CH442740A (de) | 1967-08-31 |
| JPS525532B1 (en, 2012) | 1977-02-15 |
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