JPS5844091B2 - 樹脂発泡体の製造方法 - Google Patents
樹脂発泡体の製造方法Info
- Publication number
- JPS5844091B2 JPS5844091B2 JP52019751A JP1975177A JPS5844091B2 JP S5844091 B2 JPS5844091 B2 JP S5844091B2 JP 52019751 A JP52019751 A JP 52019751A JP 1975177 A JP1975177 A JP 1975177A JP S5844091 B2 JPS5844091 B2 JP S5844091B2
- Authority
- JP
- Japan
- Prior art keywords
- blowing agent
- foam
- fluorinated carbon
- ethylene
- volume
- 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
- 239000006260 foam Substances 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229920005989 resin Polymers 0.000 title description 22
- 239000011347 resin Substances 0.000 title description 22
- 239000004604 Blowing Agent Substances 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 27
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 20
- 239000005977 Ethylene Substances 0.000 claims description 20
- 229920001577 copolymer Polymers 0.000 claims description 19
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 claims description 17
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 239000002952 polymeric resin Substances 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 8
- RFCAUADVODFSLZ-UHFFFAOYSA-N 1-Chloro-1,1,2,2,2-pentafluoroethane Chemical group FC(F)(F)C(F)(F)Cl RFCAUADVODFSLZ-UHFFFAOYSA-N 0.000 claims description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 230000009969 flowable effect Effects 0.000 claims description 6
- 239000004340 Chloropentafluoroethane Substances 0.000 claims description 3
- 235000019406 chloropentafluoroethane Nutrition 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 17
- 238000001125 extrusion Methods 0.000 description 17
- 238000012360 testing method Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 9
- 238000002156 mixing Methods 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000001413 cellular effect Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- DDMOUSALMHHKOS-UHFFFAOYSA-N 1,2-dichloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)(Cl)C(F)(F)Cl DDMOUSALMHHKOS-UHFFFAOYSA-N 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 210000000497 foam cell Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229920001567 vinyl ester resin Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- COQIQRBKEGPRSG-UHFFFAOYSA-N 1,1,1,2,3,3,3-heptafluoro-2-(trifluoromethyl)propane Chemical compound FC(F)(F)C(F)(C(F)(F)F)C(F)(F)F COQIQRBKEGPRSG-UHFFFAOYSA-N 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 150000001733 carboxylic acid esters Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 2
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- BCCOBQSFUDVTJQ-UHFFFAOYSA-N octafluorocyclobutane Chemical compound FC1(F)C(F)(F)C(F)(F)C1(F)F BCCOBQSFUDVTJQ-UHFFFAOYSA-N 0.000 description 2
- 235000019407 octafluorocyclobutane Nutrition 0.000 description 2
- QYSGYZVSCZSLHT-UHFFFAOYSA-N octafluoropropane Chemical compound FC(F)(F)C(F)(F)C(F)(F)F QYSGYZVSCZSLHT-UHFFFAOYSA-N 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- FFTOUVYEKNGDCM-OWOJBTEDSA-N (e)-1,3,3-trifluoroprop-1-ene Chemical compound F\C=C\C(F)F FFTOUVYEKNGDCM-OWOJBTEDSA-N 0.000 description 1
- MKIWPODDHGBZRV-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoro-2-methylpropane Chemical compound FC(F)(F)C(C)C(F)(F)F MKIWPODDHGBZRV-UHFFFAOYSA-N 0.000 description 1
- GQUXQQYWQKRCPL-UHFFFAOYSA-N 1,1,2,2,3,3-hexafluorocyclopropane Chemical compound FC1(F)C(F)(F)C1(F)F GQUXQQYWQKRCPL-UHFFFAOYSA-N 0.000 description 1
- WXGNWUVNYMJENI-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)F WXGNWUVNYMJENI-UHFFFAOYSA-N 0.000 description 1
- BHNZEZWIUMJCGF-UHFFFAOYSA-N 1-chloro-1,1-difluoroethane Chemical compound CC(F)(F)Cl BHNZEZWIUMJCGF-UHFFFAOYSA-N 0.000 description 1
- CYXIKYKBLDZZNW-UHFFFAOYSA-N 2-Chloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)CCl CYXIKYKBLDZZNW-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- MUZDXNQOSGWMJJ-UHFFFAOYSA-N 2-methylprop-2-enoic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=C)C(O)=O MUZDXNQOSGWMJJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000288673 Chiroptera Species 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004341 Octafluorocyclobutane Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- YOALFLHFSFEMLP-UHFFFAOYSA-N azane;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid Chemical compound [NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YOALFLHFSFEMLP-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 150000005827 chlorofluoro hydrocarbons Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- LDCRTTXIJACKKU-ARJAWSKDSA-N dimethyl maleate Chemical compound COC(=O)\C=C/C(=O)OC LDCRTTXIJACKKU-ARJAWSKDSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012216 imaging agent Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical class [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 239000004620 low density foam Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- KAVGMUDTWQVPDF-UHFFFAOYSA-N perflubutane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)F KAVGMUDTWQVPDF-UHFFFAOYSA-N 0.000 description 1
- 229960004065 perflutren Drugs 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000034563 regulation of cell size Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical class FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000004711 α-olefin 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
- C08J9/04—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
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- 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
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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66191176A | 1976-02-27 | 1976-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52110774A JPS52110774A (en) | 1977-09-17 |
| JPS5844091B2 true JPS5844091B2 (ja) | 1983-09-30 |
Family
ID=24655613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52019751A Expired JPS5844091B2 (ja) | 1976-02-27 | 1977-02-24 | 樹脂発泡体の製造方法 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4101467A (enExample) |
| JP (1) | JPS5844091B2 (enExample) |
| AU (1) | AU507018B2 (enExample) |
| BE (1) | BE851820A (enExample) |
| BR (1) | BR7701176A (enExample) |
| CA (1) | CA1079450A (enExample) |
| CH (1) | CH629516A5 (enExample) |
| DE (1) | DE2708122A1 (enExample) |
| DK (1) | DK85577A (enExample) |
| ES (1) | ES456084A1 (enExample) |
| FR (1) | FR2342314A1 (enExample) |
| GB (1) | GB1541964A (enExample) |
| IT (1) | IT1113268B (enExample) |
| NL (1) | NL7701616A (enExample) |
| NO (1) | NO146541C (enExample) |
| SE (1) | SE417978B (enExample) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215202A (en) * | 1979-02-22 | 1980-07-29 | The Dow Chemical Company | Soft ethylenic polymer blend foams |
| JPS55125128A (en) * | 1979-03-15 | 1980-09-26 | Dow Chemical Co | Low density extrusion foam of ethylenic polymer |
| DE2965605D1 (en) * | 1979-05-16 | 1983-07-14 | Dow Chemical Co | Process for continuously manufacturing polyolefin resin foam |
| US4407982A (en) * | 1981-02-06 | 1983-10-04 | Du Pont Canada Inc. | Process for the manufacture of foamed structures |
| US4528300A (en) * | 1984-01-31 | 1985-07-09 | The Dow Chemical Company | Process for producing dimensionally stable polyolefin foams using environmentally acceptable blowing agent systems |
| US4694026A (en) * | 1985-05-24 | 1987-09-15 | The Dow Chemical Company | Polyolefin foam compositions having improved dimensional stability utilizing certain unsaturated nitrogen-containing compounds and process for making same |
| US4894395A (en) * | 1986-01-22 | 1990-01-16 | The Dow Chemical Company | Expandable polyolefin compositions and polyolefin foam preparation process |
| US5277515A (en) * | 1988-10-13 | 1994-01-11 | Applied Extrusion Technologies, Inc. | Extruded ethylenic polymer foam containing both open and closed cells |
| US5098782A (en) * | 1988-10-13 | 1992-03-24 | Applied Extrusion Technologies, Inc. | Extruded ethylenic polymer foam containing both open and closed cells |
| GB2226030A (en) * | 1988-12-13 | 1990-06-20 | Ici Plc | Blowing agent |
| FR2662944B2 (fr) * | 1989-11-10 | 1992-09-04 | Atochem | Nouveau melange azeotropique a bas point d'ebullition a base de fluoroalcanes et ses applications. |
| US6121337A (en) * | 1990-03-23 | 2000-09-19 | E. I. Du Pont De Nemours And Company | Compositions containing 1,1,2,2-tetrafluoroethane (HFC-134) for closed-cell polymer foam production |
| US5147896A (en) * | 1991-05-20 | 1992-09-15 | E. I. Du Pont De Nemours And Company | Foam blowing agent composition and process for producing foams |
| US5290822A (en) * | 1992-08-27 | 1994-03-01 | Astro-Valcour, Inc. | Ultra low density polyolefin foam, foamable polyolefin compositions and process for making same |
| US5225451A (en) * | 1992-08-27 | 1993-07-06 | Astro-Valcour, Inc. | Ultra low density polyolefin foam, foamable polyolefin compositions and process for making same |
| CA2179844A1 (en) * | 1995-06-26 | 1996-12-27 | Hitoshi Shirato | Resin foamed product, production method and laminated structure thereof |
| US6090479A (en) * | 1995-06-26 | 2000-07-18 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Shape-recoverable resin foamed product |
| US5895614A (en) * | 1995-08-22 | 1999-04-20 | Tenneco Protective Packaging Inc. | Method of forming a microcellular foam plank |
| US6323245B1 (en) | 2000-08-24 | 2001-11-27 | Sealed Air Corporation (Us) | Blowing agent, polyolefin foam, and process for producing polyolefin foam |
| US7166248B2 (en) * | 2003-01-03 | 2007-01-23 | Pactiv Corporation | Reduced VOC emission alkenyl aromatic polymer foams and processes |
| US6726577B1 (en) * | 2003-01-21 | 2004-04-27 | Almost Golf, Inc. | Golf ball of unitary molded construction |
| CN105001440A (zh) | 2007-03-29 | 2015-10-28 | 阿科玛股份有限公司 | 氢氯氟烯烃类的发泡剂组合物 |
| US8226906B2 (en) | 2008-09-08 | 2012-07-24 | Zygem Corporation Limited | Sample collection device suitable for low-volume extraction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491032A (en) | 1964-09-02 | 1970-01-20 | Dow Chemical Co | High density polyolefin foams |
| US3379802A (en) | 1964-11-04 | 1968-04-23 | Dow Chemical Co | Foamed olefin copolymer blends |
| US3449268A (en) * | 1966-05-31 | 1969-06-10 | Dow Chemical Co | Process for making foamable isotactic polystyrene |
| US3657165A (en) * | 1968-10-11 | 1972-04-18 | Sekisui Chemical Co Ltd | Process for preparation of ethylenic resin foam |
| FR2211943A5 (en) | 1972-12-26 | 1974-07-19 | Dow Chemical Co | Expandable alpha-olefin copolymer granules - having improved shelf life |
-
1977
- 1977-01-27 US US05/763,374 patent/US4101467A/en not_active Expired - Lifetime
- 1977-02-16 NL NL7701616A patent/NL7701616A/xx not_active Application Discontinuation
- 1977-02-18 ES ES456084A patent/ES456084A1/es not_active Expired
- 1977-02-21 IT IT48138/77A patent/IT1113268B/it active
- 1977-02-21 CA CA272,167A patent/CA1079450A/en not_active Expired
- 1977-02-22 AU AU22543/77A patent/AU507018B2/en not_active Expired
- 1977-02-23 NO NO770611A patent/NO146541C/no unknown
- 1977-02-24 FR FR7705351A patent/FR2342314A1/fr active Granted
- 1977-02-24 JP JP52019751A patent/JPS5844091B2/ja not_active Expired
- 1977-02-25 BE BE175250A patent/BE851820A/xx not_active IP Right Cessation
- 1977-02-25 DK DK85577A patent/DK85577A/da not_active Application Discontinuation
- 1977-02-25 CH CH241277A patent/CH629516A5/de not_active IP Right Cessation
- 1977-02-25 GB GB778212A patent/GB1541964A/en not_active Expired
- 1977-02-25 BR BR7701176A patent/BR7701176A/pt unknown
- 1977-02-25 DE DE19772708122 patent/DE2708122A1/de not_active Ceased
- 1977-02-25 SE SE7702140A patent/SE417978B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2342314B1 (enExample) | 1978-10-20 |
| US4101467A (en) | 1978-07-18 |
| BE851820A (fr) | 1977-08-25 |
| SE7702140L (sv) | 1977-08-28 |
| NO146541C (no) | 1982-10-27 |
| CH629516A5 (de) | 1982-04-30 |
| BR7701176A (pt) | 1977-10-18 |
| DE2708122A1 (de) | 1977-09-08 |
| FR2342314A1 (fr) | 1977-09-23 |
| GB1541964A (en) | 1979-03-14 |
| ES456084A1 (es) | 1978-06-16 |
| IT1113268B (it) | 1986-01-20 |
| AU507018B2 (en) | 1980-01-31 |
| JPS52110774A (en) | 1977-09-17 |
| NL7701616A (nl) | 1977-08-30 |
| NO770611L (no) | 1977-08-30 |
| SE417978B (sv) | 1981-04-27 |
| CA1079450A (en) | 1980-06-10 |
| AU2254377A (en) | 1978-08-31 |
| DK85577A (da) | 1977-08-28 |
| NO146541B (no) | 1982-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
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