BE854560A - Copolymeres ethylene/oxyde de carbone contenant des groupes lateraux epoxyde - Google Patents
Copolymeres ethylene/oxyde de carbone contenant des groupes lateraux epoxydeInfo
- Publication number
- BE854560A BE854560A BE177517A BE177517A BE854560A BE 854560 A BE854560 A BE 854560A BE 177517 A BE177517 A BE 177517A BE 177517 A BE177517 A BE 177517A BE 854560 A BE854560 A BE 854560A
- Authority
- BE
- Belgium
- Prior art keywords
- ethylene
- side groups
- copolymers containing
- carbon oxide
- oxide copolymers
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- 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
- C08G67/00—Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing oxygen or oxygen and carbon, not provided for in groups C08G2/00 - C08G65/00
- C08G67/02—Copolymers of carbon monoxide and aliphatic unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L73/00—Compositions of macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C08L59/00 - C08L71/00; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of 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)
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Resins (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Adhesives Or Adhesive Processes (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/762,826 US4070532A (en) | 1975-05-23 | 1977-01-26 | Ethylene carbon monoxide copolymers containing epoxy side groups |
US05/774,435 US4157428A (en) | 1975-05-23 | 1977-03-04 | Ethylene carbon monoxide copolymers containing epoxy side groups |
CA274,860A CA1099432A (en) | 1975-05-23 | 1977-03-28 | Blends of thermosetting resins with ethylene carbon monoxide copolymers containing epoxy side groups |
GB13261/77A GB1567374A (en) | 1975-05-23 | 1977-03-29 | Ethylene copolymers |
DE19772715684 DE2715684A1 (de) | 1975-05-23 | 1977-04-07 | Aethylen/kohlenmonoxid-copolymere mit epoxy-seitengruppen |
DE2715725A DE2715725C2 (de) | 1975-05-23 | 1977-04-07 | Mischungen von hitzehärtbaren Harzen mit Äthylen/Kohlenmonoxid-Copolymeren mit Epoxy-Seitengruppen |
FR7713705A FR2389653B1 (xx) | 1975-05-23 | 1977-05-05 | |
FR7713706A FR2389650A1 (en) | 1975-05-23 | 1977-05-05 | Ethylene-carbon oxide copolymers contg. lateral epoxide gps. - forming curable mixt. with heat-curable resins |
BE177518A BE854561A (fr) | 1975-05-23 | 1977-05-12 | Melanges de resines thermodurcissables et de copolymeres ethylene/oxyde de carbone contenant des groupes lateraux apoxyde |
BE177517A BE854560A (fr) | 1975-05-23 | 1977-05-12 | Copolymeres ethylene/oxyde de carbone contenant des groupes lateraux epoxyde |
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58051575A | 1975-05-23 | 1975-05-23 | |
US68174176A | 1976-04-29 | 1976-04-29 | |
US05/774,435 US4157428A (en) | 1975-05-23 | 1977-03-04 | Ethylene carbon monoxide copolymers containing epoxy side groups |
CA274,860A CA1099432A (en) | 1975-05-23 | 1977-03-28 | Blends of thermosetting resins with ethylene carbon monoxide copolymers containing epoxy side groups |
GB13261/77A GB1567374A (en) | 1975-05-23 | 1977-03-29 | Ethylene copolymers |
DE19772715684 DE2715684A1 (de) | 1975-05-23 | 1977-04-07 | Aethylen/kohlenmonoxid-copolymere mit epoxy-seitengruppen |
FR7713706A FR2389650A1 (en) | 1975-05-23 | 1977-05-05 | Ethylene-carbon oxide copolymers contg. lateral epoxide gps. - forming curable mixt. with heat-curable resins |
BE177517A BE854560A (fr) | 1975-05-23 | 1977-05-12 | Copolymeres ethylene/oxyde de carbone contenant des groupes lateraux epoxyde |
BE854560 | 1977-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE854560A true BE854560A (fr) | 1977-11-14 |
Family
ID=36951569
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE177517A BE854560A (fr) | 1975-05-23 | 1977-05-12 | Copolymeres ethylene/oxyde de carbone contenant des groupes lateraux epoxyde |
BE177518A BE854561A (fr) | 1975-05-23 | 1977-05-12 | Melanges de resines thermodurcissables et de copolymeres ethylene/oxyde de carbone contenant des groupes lateraux apoxyde |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE177518A BE854561A (fr) | 1975-05-23 | 1977-05-12 | Melanges de resines thermodurcissables et de copolymeres ethylene/oxyde de carbone contenant des groupes lateraux apoxyde |
Country Status (6)
Country | Link |
---|---|
US (2) | US4070532A (xx) |
BE (2) | BE854560A (xx) |
CA (1) | CA1099432A (xx) |
DE (2) | DE2715725C2 (xx) |
FR (2) | FR2389650A1 (xx) |
GB (1) | GB1567374A (xx) |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4798848A (en) * | 1973-10-18 | 1989-01-17 | Ciba-Geigy Corporation | Hot-foamable, thermosetting epoxy resin mixture |
US4143096A (en) * | 1977-12-23 | 1979-03-06 | Atlantic Richfield Company | Ethylene carbon monoxide graft copolymers |
US4370423A (en) * | 1981-09-18 | 1983-01-25 | Bata Limited | Fast-curing foamable composition based on ethylene terpolymers |
US4394459A (en) * | 1981-09-18 | 1983-07-19 | E. I. Du Pont De Nemours & Co. | Fast-curing foamable composition based on ethylene terpolymers |
US4381378A (en) * | 1981-12-28 | 1983-04-26 | E. I. Du Pont De Nemours And Company | Method for vulcanizing ethylene/acrylic or vinyl ester/glycidyl(meth)acrylate copolymer with piperazinium dicarboxylate salt and composition for same |
US4381375A (en) * | 1981-12-28 | 1983-04-26 | E. I. Du Pont De Nemours And Company | Method for vulcanizing ethylene/acrylic or vinyl ester/glycidyl(meth) acrylate copolymer with piperazinium diphenoxide salt of chloro-substituted phenol |
US4434253A (en) | 1982-09-27 | 1984-02-28 | E. I. Du Pont De Nemours And Company | Low density closed-cell foamed articles from ethylene copolymer/vinyl or vinylidene halide blends |
US4391923A (en) * | 1982-09-27 | 1983-07-05 | E. I. Du Pont De Nemours & Co. | Low density closed-cell foamed articles from ethylene copolymer/vinyl or vinylidene halide blends |
EP0135027B1 (en) * | 1983-07-22 | 1989-02-08 | Du Pont-Mitsui Polychemicals Co., Ltd. | Polymer composition |
US4600614A (en) * | 1983-09-12 | 1986-07-15 | The Dow Chemical Company | High-frequency heatable plastics |
US4536542A (en) * | 1983-11-18 | 1985-08-20 | General Electric Company | Method for altering the surface of thermoplastic polymers |
IN166314B (xx) * | 1985-08-29 | 1990-04-07 | Shell Int Research | |
DE3540464A1 (de) * | 1985-11-14 | 1987-05-21 | Polychemie Gmbh | Reaktive bindemittel |
US4786714A (en) * | 1985-11-29 | 1988-11-22 | Shell Oil Company | Catalytic process for polymerizing carbon monoxide and olefin(s) with nitrogen bidentate ligand |
NL8503395A (nl) * | 1985-12-10 | 1987-07-01 | Shell Int Research | Nieuwe katalysatorcomposities. |
IN168306B (xx) * | 1986-03-05 | 1991-03-09 | Shell Int Research | |
CA1324456C (en) * | 1986-03-05 | 1993-11-16 | Johannes A. M. Van Broekhoven | Catalyst compositions |
EP0235866A3 (en) * | 1986-03-05 | 1988-01-27 | Shell Internationale Researchmaatschappij B.V. | Catalyst compositions |
CA1271877A (en) * | 1986-03-24 | 1990-07-17 | Johannes A.M. Van Broekhoven | Polymer preparation |
US4769279A (en) * | 1986-09-22 | 1988-09-06 | Exxon Chemical Patents Inc. | Low viscosity ethylene acrylic copolymers for nonwovens |
US4874819A (en) * | 1987-12-21 | 1989-10-17 | Shell Oil Company | Polymer blend |
US4954570A (en) * | 1988-05-24 | 1990-09-04 | Shell Oil Company | Polyketone polymer blend |
USH886H (en) * | 1987-12-24 | 1991-02-05 | Shell Oil Company | Reinforced polymer |
USH812H (en) | 1987-12-24 | 1990-08-07 | Shell Oil Company | Reinforced polymer |
US4904728A (en) * | 1988-08-31 | 1990-02-27 | Shell Oil Company | Polymer blends |
US4808678A (en) * | 1988-06-13 | 1989-02-28 | Shell Oil Company | Polymer blend of carbon monoxide/olefin copolymer and a hydroxyalkyl ether |
GB8900953D0 (en) | 1989-01-17 | 1989-03-08 | Shell Int Research | Thermosetting resin compositions |
US4970294A (en) * | 1988-12-08 | 1990-11-13 | Shell Oil Company | α-olefin/carbon monoxide copolymers and catalyst and process for making |
WO1991009907A1 (en) * | 1989-12-29 | 1991-07-11 | Chevron Research And Technology Company | Polymer and asphalt reaction process and polymer-linked-asphalt product |
US5057593A (en) * | 1990-06-11 | 1991-10-15 | E. I. Du Pont De Nemours And Company | Free radical copolymerization of ethylene and CO with acetone |
US5219954A (en) * | 1991-08-30 | 1993-06-15 | Shell Oil Company | Miscible polyketone phenolic novolac blends |
JPH05194834A (ja) * | 1991-08-30 | 1993-08-03 | Shell Internatl Res Maatschappij Bv | 一酸化炭素とエチレン型不飽和化合物のポリマーから成る組成物 |
US5405700A (en) * | 1993-12-13 | 1995-04-11 | Shell Oil Company | Epoxy-polyketone polymer composite system |
US5434217A (en) * | 1994-03-04 | 1995-07-18 | E. I. Du Pont De Nemours And Company | Flexible polar thermoplastic polyolefin compositions |
ATE242297T1 (de) * | 1995-03-13 | 2003-06-15 | Mathy Construction Company | Mit säure umgesetzte, polymermodifizierte asphaltzusammensetzungen und deren herstellung |
US5631324A (en) * | 1995-06-07 | 1997-05-20 | Acushnet Company | Golf ball covers |
EP0889088A1 (en) * | 1997-07-01 | 1999-01-07 | Du Pont De Nemours International S.A. | Polyolefin compositions |
US6211291B1 (en) | 1997-07-01 | 2001-04-03 | E. I. Du Pont De Nemours And Company | Polyolefin compositions |
EP1082391B1 (en) * | 1998-03-24 | 2002-06-12 | Resolution Research Nederland B.V. | Thermosetting resinous binder compositions, their preparation and use as coating materials |
US6333115B1 (en) | 1998-08-24 | 2001-12-25 | Premark Rwp Holdings, Inc. | Thin film adhesive, method of making, products made therefrom |
US6361844B1 (en) | 1999-01-27 | 2002-03-26 | David T. Ou-Yang | Release article and adhesive article comprising the release article |
US6333073B1 (en) | 1999-02-25 | 2001-12-25 | Premark Rwp Holdings, Inc. | Adhesive tape and products made therefrom |
EP1209203B1 (en) * | 1999-04-23 | 2006-08-16 | Kaneka Corporation | Processing aid for thermoplastic resin and thermoplastic resin composition containing the same |
EP1088918A1 (en) * | 1999-09-29 | 2001-04-04 | Basf Corporation | Thermoset/thermoplastic fibers and process for producing the same |
US6465091B1 (en) | 2000-03-27 | 2002-10-15 | 3M Innovative Properties Company | Release article and adhesive article containing a polymeric release material |
US6808810B2 (en) * | 2000-12-20 | 2004-10-26 | Sumitomo Chemical Company, Limited | Resin composition, laminate and production of laminate |
US7160935B2 (en) * | 2003-04-04 | 2007-01-09 | E. I. Du Pont De Nemours And Company | Tubular reactor ethylene/alkyl acrylate copolymer as polymeric modifiers for asphalt |
US7157508B2 (en) * | 2003-06-06 | 2007-01-02 | E. I. Du Pont De Nemours And Company | Polymer-linked asphalt compositions |
US20070087179A1 (en) * | 2005-10-17 | 2007-04-19 | Horn Donald R | Solid surface composite |
US20070111009A1 (en) * | 2005-11-16 | 2007-05-17 | Morris Barry A | Multilayer composite structure with epoxide containing adhesive layer |
US8242224B2 (en) * | 2007-08-15 | 2012-08-14 | Isp Investments Inc. | Polyvinylamide polymers containing polymerizable functionalities |
JP5702603B2 (ja) | 2007-08-15 | 2015-04-15 | アイエスピー インヴェストメンツ インコーポレイテッドIsp Investments Inc. | 重合可能な官能基を含むポリビニルアミドポリマー |
US10696771B2 (en) | 2015-03-26 | 2020-06-30 | Performance Materials Na, Inc. | Method of incorporating ethylene copolymers into latex |
US10435560B2 (en) | 2015-07-01 | 2019-10-08 | Performance Materials Na, Inc. | Polymer modified asphalt reaction products |
JP6918772B2 (ja) | 2015-07-23 | 2021-08-11 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーE.I.Du Pont De Nemours And Company | エポキシ官能化エチレンコポリマーアスファルト反応生成物 |
JP6823046B2 (ja) | 2015-08-07 | 2021-01-27 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーE.I.Du Pont De Nemours And Company | 亜リン酸を使用する改質アスファルト |
MX2018007280A (es) | 2015-12-29 | 2018-09-06 | Du Pont | Asfalto modificado usando polimeros que contienen epoxidos. |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2495286A (en) * | 1949-06-08 | 1950-01-24 | Du Pont | Interpolymers of carbon monoxide and method for preparing the same |
US2641590A (en) * | 1950-08-18 | 1953-06-09 | Du Pont | Carbon monoxide copolymers and a catalytic process for their preparation |
US3201497A (en) * | 1961-09-28 | 1965-08-17 | Du Pont | Adhesives comprising epoxy-hydroxy polyether resin and epoxy-containing copolymer |
US3361842A (en) * | 1963-04-25 | 1968-01-02 | Dow Chemical Co | Liquid copolymers of ethylene, another alpha olefin and carboxylic acids and compositions thereof with polyepoxides |
FR1414057A (fr) * | 1963-09-09 | 1965-10-15 | Du Pont | Compositions plastiques à base de copolymères oléfines-acides carboxyliques non saturés et de polymères mélamine formaldéhyde et leur production |
DE1486334A1 (de) * | 1964-11-16 | 1969-04-17 | Eastman Kodak Co | Verwendung von synthetischen Polymeren zur Herstellung von Verpackungen und Verpackungsmaterialien,insbesondere fuer Nahrungsmittel |
US3438931A (en) * | 1964-12-14 | 1969-04-15 | Union Carbide Corp | Phenolic molding compositions |
US3526540A (en) * | 1965-03-31 | 1970-09-01 | Air Reduction | Coating of woven fabrics and the like |
US3530109A (en) * | 1966-12-05 | 1970-09-22 | Union Oil Co | Ethylene-carbon monoxide copolymers |
US3526538A (en) * | 1968-09-23 | 1970-09-01 | Air Reduction | Nonwoven fabric product and the like and preparation thereof |
US3639365A (en) * | 1969-07-22 | 1972-02-01 | Du Pont | Ethylene-vinyl acetate-allyl glycidyl ether terpolymer and plasticized compositions containing same |
US3647520A (en) * | 1970-07-06 | 1972-03-07 | Continental Can Co | Electron beam cross-linking of coating compositions containing ethylene unsaturated carboxylic acid copolymers and a melamine composition |
US3790460A (en) * | 1970-07-13 | 1974-02-05 | Air Prod & Chem | Carbon monoxide copolymers |
CA962398A (en) * | 1971-03-16 | 1975-02-04 | Sumitomo Chemical Company | Process for producing ethylene copolymers |
US3723570A (en) * | 1971-07-29 | 1973-03-27 | Du Pont | Ethylene-vinyl acetate-allyl glycidyl ether terpolymer with polyvinyl chloride |
US3780140A (en) * | 1971-08-06 | 1973-12-18 | Du Pont | Ethylene/carbon monoxide polymer compositions |
US3781380A (en) * | 1971-08-16 | 1973-12-25 | Ford Motor Co | Powder coating compositions containing glycidyl ester copolymers,carboxy terminated polymeric crosslinking agents,and flow control agents |
JPS524027B2 (xx) * | 1971-12-18 | 1977-02-01 | ||
GB1411023A (en) * | 1972-05-13 | 1975-10-22 | Sumitomo Electric Industries | Laminated tape for sheathing cable |
US3948850A (en) * | 1974-08-29 | 1976-04-06 | Atlantic Richfield Company | Stabilized ethylene-carbon monoxide copolymers |
US3948832A (en) * | 1974-09-25 | 1976-04-06 | Atlantic Richfield Company | Stabilized ethylene-carbon monoxide copolymers containing an epoxy compound |
US3948873A (en) * | 1974-10-10 | 1976-04-06 | Atlantic Richfield Company | Process for preparing carbon monoxide-ethylene copolymers |
US3843594A (en) * | 1974-12-17 | 1974-10-22 | Ford Motor Co | Thermoset molding powders employing glycidyl methacrylate-functional prepolymers and diphenol-expoxy resin adducts and molding thereof |
US4172859A (en) * | 1975-05-23 | 1979-10-30 | E. I. Du Pont De Nemours And Company | Tough thermoplastic polyester compositions |
-
1977
- 1977-01-26 US US05/762,826 patent/US4070532A/en not_active Expired - Lifetime
- 1977-03-04 US US05/774,435 patent/US4157428A/en not_active Expired - Lifetime
- 1977-03-28 CA CA274,860A patent/CA1099432A/en not_active Expired
- 1977-03-29 GB GB13261/77A patent/GB1567374A/en not_active Expired
- 1977-04-07 DE DE2715725A patent/DE2715725C2/de not_active Expired
- 1977-04-07 DE DE19772715684 patent/DE2715684A1/de active Granted
- 1977-05-05 FR FR7713706A patent/FR2389650A1/fr active Granted
- 1977-05-05 FR FR7713705A patent/FR2389653B1/fr not_active Expired
- 1977-05-12 BE BE177517A patent/BE854560A/xx not_active IP Right Cessation
- 1977-05-12 BE BE177518A patent/BE854561A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1567374A (en) | 1980-05-14 |
US4157428A (en) | 1979-06-05 |
FR2389650B1 (xx) | 1984-10-12 |
DE2715725C2 (de) | 1986-04-24 |
FR2389653B1 (xx) | 1984-06-22 |
DE2715725A1 (de) | 1978-10-12 |
DE2715684C2 (xx) | 1991-05-29 |
FR2389653A1 (xx) | 1978-12-01 |
DE2715684A1 (de) | 1978-10-12 |
FR2389650A1 (en) | 1978-12-01 |
US4070532A (en) | 1978-01-24 |
CA1099432A (en) | 1981-04-14 |
BE854561A (fr) | 1977-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: E.I. DU PONT DE NEMOURS AND CY Effective date: 19940531 |