CA1067249A - Polymeres acryliques modifies hydrophiles, notamment hydrodispersibles ou hydrosolubles, et procede pour leur preparation - Google Patents
Polymeres acryliques modifies hydrophiles, notamment hydrodispersibles ou hydrosolubles, et procede pour leur preparationInfo
- Publication number
- CA1067249A CA1067249A CA232,216A CA232216A CA1067249A CA 1067249 A CA1067249 A CA 1067249A CA 232216 A CA232216 A CA 232216A CA 1067249 A CA1067249 A CA 1067249A
- Authority
- CA
- Canada
- Prior art keywords
- acrylic
- alkanolamine
- polymer
- acrylic polymer
- diluent
- 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
- 229920000058 polyacrylate Polymers 0.000 title claims abstract description 39
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 31
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000178 monomer Substances 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract 2
- 229920000642 polymer Polymers 0.000 claims description 32
- 238000006460 hydrolysis reaction Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000007062 hydrolysis Effects 0.000 claims description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 14
- 239000003085 diluting agent Substances 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 11
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 10
- 239000007795 chemical reaction product Substances 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 150000001340 alkali metals Chemical class 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- -1 ethyl radicals Chemical class 0.000 claims description 5
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000008346 aqueous phase Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- 238000005904 alkaline hydrolysis reaction Methods 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 239000012454 non-polar solvent Substances 0.000 claims 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims 2
- 150000001339 alkali metal compounds Chemical class 0.000 claims 2
- 125000005395 methacrylic acid group Chemical group 0.000 claims 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 150000001253 acrylic acids Chemical class 0.000 claims 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 125000003118 aryl group Chemical group 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 239000002798 polar solvent Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 125000004076 pyridyl group Chemical group 0.000 claims 1
- 125000004929 pyrrolidonyl group Chemical group N1(C(CCC1)=O)* 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 abstract description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract description 2
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000012429 reaction media Substances 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 150000007942 carboxylates Chemical group 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 241001136782 Alca Species 0.000 description 1
- 241000356558 Alcanola Species 0.000 description 1
- FBEHFRAORPEGFH-UHFFFAOYSA-N Allyxycarb Chemical compound CNC(=O)OC1=CC(C)=C(N(CC=C)CC=C)C(C)=C1 FBEHFRAORPEGFH-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical compound NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 238000006011 modification reaction Methods 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
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/44—Preparation of metal salts or ammonium salts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7426010A FR2279770A1 (fr) | 1974-07-26 | 1974-07-26 | Polymeres acryliques modifies hydrophiles, notamment hydrodispersibles ou hydrosolubles et procede pour leur preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1067249A true CA1067249A (fr) | 1979-11-27 |
Family
ID=9141744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA232,216A Expired CA1067249A (fr) | 1974-07-26 | 1975-07-25 | Polymeres acryliques modifies hydrophiles, notamment hydrodispersibles ou hydrosolubles, et procede pour leur preparation |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4037035A (instruction) |
| JP (1) | JPS5137181A (instruction) |
| AU (1) | AU497088B2 (instruction) |
| BE (1) | BE831718A (instruction) |
| CA (1) | CA1067249A (instruction) |
| CH (1) | CH609069A5 (instruction) |
| DE (1) | DE2533444A1 (instruction) |
| FR (1) | FR2279770A1 (instruction) |
| GB (1) | GB1503347A (instruction) |
| IT (1) | IT1040081B (instruction) |
| LU (1) | LU73043A1 (instruction) |
| NL (1) | NL7508935A (instruction) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378808A1 (fr) * | 1977-01-28 | 1978-08-25 | Mar Pha Etu Expl Marques | Nouveaux copolymeres hydrophiles a base de n-(tris(hydroxy-methyl)methyl)acrylamide ou de n-(tris (hydroxymethyl)methyl)methacrylamide, leur preparation et leur emploi dans les techniques de separation |
| US4288582A (en) * | 1978-09-27 | 1981-09-08 | Milchem Incorporated | Aqueous drilling fluid additive, composition and process |
| CA2283407A1 (en) * | 1997-03-14 | 1998-09-24 | Exxon Research And Engineering Company | Membranes comprising aminoalcohols in hydrophilic polymers |
| FR2807045B1 (fr) * | 2000-03-31 | 2004-02-27 | Atofina | Copolymeres acryliques hydrosolubles et leur utilisation comme fluidifiants ou dispersants |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE623404C (instruction) * | 1930-05-26 | |||
| US2109877A (en) * | 1935-11-20 | 1938-03-01 | Du Pont | Ester interchange process |
| US2956046A (en) * | 1954-09-21 | 1960-10-11 | Rohm & Haas | Polymerization of acrylic acid salts and the like |
| NL241422A (instruction) * | 1958-07-21 | |||
| US3117108A (en) * | 1958-11-28 | 1964-01-07 | Ici Ltd | Process for producing methacrylate/nu-methylolacrylamide polymers |
| FR1366002A (fr) * | 1965-05-14 | 1964-07-10 | Lansing Bagnall Ltd | Perfectionnements concernant des chariots industriels |
-
1974
- 1974-07-26 FR FR7426010A patent/FR2279770A1/fr active Granted
-
1975
- 1975-07-23 US US05/598,185 patent/US4037035A/en not_active Expired - Lifetime
- 1975-07-24 GB GB30996/75A patent/GB1503347A/en not_active Expired
- 1975-07-24 LU LU73043A patent/LU73043A1/xx unknown
- 1975-07-24 AU AU83361/75A patent/AU497088B2/en not_active Expired
- 1975-07-25 BE BE158593A patent/BE831718A/xx unknown
- 1975-07-25 DE DE19752533444 patent/DE2533444A1/de not_active Withdrawn
- 1975-07-25 CA CA232,216A patent/CA1067249A/fr not_active Expired
- 1975-07-25 JP JP50090329A patent/JPS5137181A/ja active Pending
- 1975-07-25 NL NL7508935A patent/NL7508935A/xx not_active Application Discontinuation
- 1975-07-25 CH CH977175A patent/CH609069A5/xx not_active IP Right Cessation
- 1975-07-25 IT IT25752/75A patent/IT1040081B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1040081B (it) | 1979-12-20 |
| FR2279770B1 (instruction) | 1977-03-18 |
| LU73043A1 (instruction) | 1976-03-02 |
| AU497088B2 (en) | 1978-11-30 |
| JPS5137181A (instruction) | 1976-03-29 |
| AU8336175A (en) | 1977-01-27 |
| BE831718A (fr) | 1975-11-17 |
| NL7508935A (nl) | 1976-01-28 |
| CH609069A5 (instruction) | 1979-02-15 |
| US4037035A (en) | 1977-07-19 |
| DE2533444A1 (de) | 1976-02-12 |
| FR2279770A1 (fr) | 1976-02-20 |
| GB1503347A (en) | 1978-03-08 |
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