NO134554B - - Google Patents
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- Publication number
- NO134554B NO134554B NO2954/73A NO295473A NO134554B NO 134554 B NO134554 B NO 134554B NO 2954/73 A NO2954/73 A NO 2954/73A NO 295473 A NO295473 A NO 295473A NO 134554 B NO134554 B NO 134554B
- Authority
- NO
- Norway
- Prior art keywords
- diol
- reaction
- dicarboxylic acid
- monoacylate
- aromatic dicarboxylic
- Prior art date
Links
- 150000002009 diols Chemical class 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 27
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 22
- 125000003118 aryl group Chemical group 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000007790 solid phase Substances 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 125000000732 arylene group Chemical group 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- 229920001281 polyalkylene Polymers 0.000 claims description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 28
- 238000002844 melting Methods 0.000 description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 230000008018 melting Effects 0.000 description 10
- 150000002148 esters Chemical class 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 238000006068 polycondensation reaction Methods 0.000 description 8
- 229920000728 polyester Polymers 0.000 description 8
- -1 Aromatic dicarboxylic acids Chemical class 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 6
- 238000005886 esterification reaction Methods 0.000 description 5
- 125000003827 glycol group Chemical group 0.000 description 5
- 230000032050 esterification Effects 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- MNZAKDODWSQONA-UHFFFAOYSA-N 1-dibutylphosphorylbutane Chemical compound CCCCP(=O)(CCCC)CCCC MNZAKDODWSQONA-UHFFFAOYSA-N 0.000 description 1
- HXDLWJWIAHWIKI-UHFFFAOYSA-N 2-hydroxyethyl acetate Chemical compound CC(=O)OCCO HXDLWJWIAHWIKI-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- SBBQDUFLZGOASY-OWOJBTEDSA-N 4-[(e)-2-(4-carboxyphenyl)ethenyl]benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1\C=C\C1=CC=C(C(O)=O)C=C1 SBBQDUFLZGOASY-OWOJBTEDSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 230000034659 glycolysis Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/87—Non-metals or inter-compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/40—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
- C08G63/42—Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3420272A GB1387335A (en) | 1972-07-21 | 1972-07-21 | Manufacture of polyesters |
| GB5255172 | 1972-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO134554B true NO134554B (xx) | 1976-07-26 |
| NO134554C NO134554C (xx) | 1976-11-03 |
Family
ID=26262199
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2953/73A NO134555C (xx) | 1972-07-21 | 1973-07-20 | |
| NO2954/73A NO134554C (xx) | 1972-07-21 | 1973-07-20 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2953/73A NO134555C (xx) | 1972-07-21 | 1973-07-20 |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US3842040A (xx) |
| JP (2) | JPS5236553B2 (xx) |
| AR (2) | AR204815A1 (xx) |
| AT (1) | AT339609B (xx) |
| CA (2) | CA1026042A (xx) |
| CH (2) | CH585237A5 (xx) |
| DD (2) | DD107472A5 (xx) |
| DE (2) | DE2337287C3 (xx) |
| ES (2) | ES417135A1 (xx) |
| FR (2) | FR2193841B1 (xx) |
| GB (1) | GB1387335A (xx) |
| IE (2) | IE37880B1 (xx) |
| IL (2) | IL42732A (xx) |
| IN (1) | IN140336B (xx) |
| IT (2) | IT994993B (xx) |
| LU (2) | LU68047A1 (xx) |
| NL (2) | NL7309795A (xx) |
| NO (2) | NO134555C (xx) |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1469032A (en) * | 1975-01-13 | 1977-03-30 | Ici Ltd | Polyester manufacture |
| US4266046A (en) * | 1976-09-17 | 1981-05-05 | Phillips Petroleum Company | Esterification process |
| JPS5450666U (xx) * | 1977-09-10 | 1979-04-07 | ||
| US4154920A (en) * | 1978-03-13 | 1979-05-15 | Owens-Illinois, Inc. | Methods for producing improved stable polyethylene terephthalate |
| US4248998A (en) * | 1979-08-20 | 1981-02-03 | Standard Oil Company (Indiana) | 2,3-Di-(carboxyphenyl)oxirane compounds and polymers |
| US4613678A (en) * | 1980-01-14 | 1986-09-23 | The Dow Chemical Company | Esterification of aromatic dicarboxylic acids with cyclic alkylene carbonates |
| US4260735A (en) * | 1980-02-12 | 1981-04-07 | Allied Chemical Corporation | Catalytic process for preparation of polyesters |
| US4414382A (en) * | 1982-09-30 | 1983-11-08 | Eastman Kodak Company | Copolyesters derived from 2,6-naphthalenedicarboxylic acid, trans-4,4'-stilbenedicarboxylic acid and ethylene glycol |
| US4420607A (en) * | 1983-03-15 | 1983-12-13 | Eastman Kodak Company | Polyesters of trans-4,4-stilbenedicarboxylic acid, terephthalic acid or 2,6-naphthalenedicarboxylic acid, and 1,2-propanediol |
| US4459402A (en) * | 1983-03-15 | 1984-07-10 | Eastman Kodak Company | Copolyesters comprising repeating units from trans-4,4'-stilbenedicarboxylic acid, terephthalic acid and/or 2,6-naphthalenedicarboxylic acid, and 1,4-butanediol |
| US4468510A (en) * | 1983-03-15 | 1984-08-28 | Eastman Kodak Company | Polyesters of trans-4,4'-stilbenedicarboxylic acid, terephthalic acid or 2,6-naphthalenedicarboxylic acid, 1,2-propanediol and 1,3-propanediol |
| US4824931A (en) * | 1988-02-16 | 1989-04-25 | Eastman Kodak Company | Polyesters from trans-4,4'-stilbenedicarboxylic acid and 1,6-hexanediol |
| US4916205A (en) * | 1988-12-23 | 1990-04-10 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,6-hexanediol and 1,4-butanediol |
| US5057595A (en) * | 1988-12-23 | 1991-10-15 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol and ethylene glycol |
| US4904747A (en) * | 1988-12-23 | 1990-02-27 | Eastman Kodak Company | Blends of polycarbonates with polyesters from 4,4'-biphenyldicarboxylic acid and 1,6-hexanediol |
| US4959450A (en) * | 1988-12-23 | 1990-09-25 | Eastman Kodak Company | Copolyesters from 4,4'biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol and 1,6-hexanediol |
| US5037947A (en) * | 1988-12-23 | 1991-08-06 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,6-hexanediol and 1,4-butanediol |
| US4956448A (en) * | 1988-12-23 | 1990-09-11 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol, and 1,4-butanediol |
| US5011877A (en) * | 1988-12-23 | 1991-04-30 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol and 1,6-hexanediol |
| US5011878A (en) * | 1988-12-23 | 1991-04-30 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol, and 1,4-butanediol |
| US4914179A (en) * | 1988-12-23 | 1990-04-03 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol and ethylene glycol |
| US5037946A (en) * | 1988-12-23 | 1991-08-06 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,6-hexanediol and ethylene glycol |
| US4906709A (en) * | 1988-12-23 | 1990-03-06 | Eastman Kodak Company | Blends of polycarbonates with polyesters from trans-4,4'-stilbenedicarboxylic acid and 1,6-hexanediol |
| US4973654A (en) * | 1988-12-23 | 1990-11-27 | Eastman Kodak Company | Copolyesters from 4,4'-biphenyldicarboxylic acid, 1,6-hexanediol and ethylene glycol |
| US5003041A (en) * | 1988-12-23 | 1991-03-26 | Eastman Kodak Company | Blends of poly(ethylene terephthalate) and trans-4,4'-stilbenedicarboxylic acid polyesters |
| US5221719A (en) * | 1988-12-23 | 1993-06-22 | Eastman Kodak Company | Blends of poly (ethylene terephthalate) and trans-4,4'-stilbenedicarboxylic acid polyesters |
| US5013820A (en) * | 1989-04-12 | 1991-05-07 | Eastman Kodak Company | Preparation of poly(ethlene-2,6-naphthalene dicarboxylate) from dimethyl-2,6-naphthalene dicarboxylate and methyl hydrogen 2,6-naphthalene dicarboxylate |
| US6020420A (en) * | 1999-03-10 | 2000-02-01 | Eastman Chemical Company | Water-dispersible polyesters |
| US9534104B2 (en) | 2013-01-28 | 2017-01-03 | Exxonmobil Chemical Patents Inc. | Plasticizer blends and use thereof |
| US9464166B2 (en) | 2013-01-28 | 2016-10-11 | Exxonmobil Chemical Patents Inc. | Production and use of 3,4' and 4,4'-dimethylbiphenyl isomers |
| CN105008314B (zh) | 2013-03-14 | 2018-03-16 | 埃克森美孚化学专利公司 | 甲基取代的联苯化合物，它们的制备和它们在制造增塑剂中的用途 |
| US9725377B2 (en) | 2013-03-14 | 2017-08-08 | Exxonmobil Chemical Patents Inc. | Hydroalkylation catalyst and process for use thereof |
| WO2014159094A1 (en) | 2013-03-14 | 2014-10-02 | Exxonmobil Chemical Patents Inc. | Methyl-substituted biphenyl compounds, their production and their use in the manufacture of plasticizers |
| RU2015143691A (ru) | 2013-03-14 | 2017-04-17 | Эксонмобил Кемикэл Пейтентс Инк. | Смеси изомеров (метилциклогексил)толуола, их получение и их применение для получения пластификаторов |
| WO2014159106A1 (en) | 2013-03-14 | 2014-10-02 | Exxonmobil Chemical Patents Inc. | Methyl-substituted biphenyl compounds, their production and their use in the manufacture of plasticizers |
| US9328053B2 (en) | 2013-03-14 | 2016-05-03 | Exxonmobil Chemical Patents Inc. | Methyl-substituted biphenyl compounds, their production and their use in the manufacture of plasticizers |
| US9896393B2 (en) | 2014-06-13 | 2018-02-20 | Exxonmobil Chemical Patents Inc. | Process for preparing dialkylbiphenyl isomer mixtures |
| US9758447B2 (en) | 2014-10-24 | 2017-09-12 | Exxonmobil Chemical Patents Inc. | Activation of dehydrogenation catalysts |
| US9856186B2 (en) | 2014-12-19 | 2018-01-02 | Exxonmobil Chemical Patents Inc. | Production and use of dialkylbiphenyl isomer mixtures |
| WO2016099893A1 (en) | 2014-12-19 | 2016-06-23 | Exxonmobil Chemical Patents Inc. | Production and use of dialkylbiphenyl isomer mixtures |
| US10287402B2 (en) | 2016-04-29 | 2019-05-14 | Exxonmobil Chemical Patents Inc. | Polycarbonate-polyolefin block copolymers and methods of making them |
| WO2019143495A1 (en) | 2018-01-22 | 2019-07-25 | Exxonmobil Chemical Patents Inc. | Production and use of 3,4' and 4,4'-dimethylbiphenyl isomers |
-
1972
- 1972-07-21 GB GB3420272A patent/GB1387335A/en not_active Expired
-
1973
- 1973-01-01 AR AR249134A patent/AR204815A1/es active
- 1973-01-01 AR AR249116A patent/AR207216A1/es active
- 1973-07-05 IE IE1133/73A patent/IE37880B1/xx unknown
- 1973-07-09 US US00377184A patent/US3842040A/en not_active Expired - Lifetime
- 1973-07-10 IE IE1163/73A patent/IE37897B1/xx unknown
- 1973-07-11 CA CA176,192A patent/CA1026042A/en not_active Expired
- 1973-07-11 CA CA176,139A patent/CA1027290A/en not_active Expired
- 1973-07-13 NL NL7309795A patent/NL7309795A/xx not_active Application Discontinuation
- 1973-07-13 IL IL42732A patent/IL42732A/en unknown
- 1973-07-13 NL NL7309797A patent/NL7309797A/xx not_active Application Discontinuation
- 1973-07-16 IN IN1659/CAL/73A patent/IN140336B/en unknown
- 1973-07-18 IL IL42785A patent/IL42785A/en unknown
- 1973-07-19 LU LU68047A patent/LU68047A1/xx unknown
- 1973-07-19 LU LU68046A patent/LU68046A1/xx unknown
- 1973-07-20 JP JP48082461A patent/JPS5236553B2/ja not_active Expired
- 1973-07-20 NO NO2953/73A patent/NO134555C/no unknown
- 1973-07-20 NO NO2954/73A patent/NO134554C/no unknown
- 1973-07-20 IT IT26875/73A patent/IT994993B/it active
- 1973-07-20 FR FR7326743A patent/FR2193841B1/fr not_active Expired
- 1973-07-20 DD DD172406A patent/DD107472A5/xx unknown
- 1973-07-20 JP JP48082460A patent/JPS5236552B2/ja not_active Expired
- 1973-07-20 FR FR7326744A patent/FR2193842B1/fr not_active Expired
- 1973-07-20 DD DD172405A patent/DD106049A5/xx unknown
- 1973-07-20 IT IT26876/73A patent/IT998269B/it active
- 1973-07-21 ES ES417135A patent/ES417135A1/es not_active Expired
- 1973-07-21 ES ES417134A patent/ES417134A1/es not_active Expired
- 1973-07-23 DE DE2337287A patent/DE2337287C3/de not_active Expired
- 1973-07-23 AT AT647873A patent/AT339609B/de not_active IP Right Cessation
- 1973-07-23 CH CH1074173A patent/CH585237A5/xx not_active IP Right Cessation
- 1973-07-23 DE DE19732337288 patent/DE2337288A1/de not_active Ceased
- 1973-07-23 CH CH1074073A patent/CH585236A5/xx not_active IP Right Cessation
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