GB1493481A - N-cyano-sulphonamide resins and intermediates therefor and products thereof - Google Patents
N-cyano-sulphonamide resins and intermediates therefor and products thereofInfo
- Publication number
- GB1493481A GB1493481A GB475275A GB475275A GB1493481A GB 1493481 A GB1493481 A GB 1493481A GB 475275 A GB475275 A GB 475275A GB 475275 A GB475275 A GB 475275A GB 1493481 A GB1493481 A GB 1493481A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- cyanogen halide
- cyano
- products
- chloride
- 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
- LDABEQINUALFMV-UHFFFAOYSA-N O=S(=O)NC#N Chemical compound O=S(=O)NC#N LDABEQINUALFMV-UHFFFAOYSA-N 0.000 title 1
- 239000000543 intermediate Substances 0.000 title 1
- 229920005989 resin Polymers 0.000 title 1
- 239000011347 resin Substances 0.000 title 1
- -1 cyanogen halide Chemical class 0.000 abstract 4
- JMANVNJQNLATNU-UHFFFAOYSA-N glycolonitrile Natural products N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 abstract 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- 150000001412 amines Chemical class 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 150000004985 diamines Chemical class 0.000 abstract 2
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 abstract 2
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0638—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
- C08G73/065—Preparatory processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0638—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
- C08G73/065—Preparatory processes
- C08G73/0655—Preparatory processes from polycyanurates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/07—Parts immersed or impregnated in a matrix
- B32B2305/076—Prepregs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/72—Cured, e.g. vulcanised, cross-linked
-
- 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
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/901—Printed circuit
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
- Y10T442/2893—Coated or impregnated polyamide fiber fabric
- Y10T442/2902—Aromatic polyamide fiber fabric
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2926—Coated or impregnated inorganic fiber fabric
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2926—Coated or impregnated inorganic fiber fabric
- Y10T442/2984—Coated or impregnated carbon or carbonaceous fiber fabric
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2926—Coated or impregnated inorganic fiber fabric
- Y10T442/2992—Coated or impregnated glass fiber fabric
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)
- Textile Engineering (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/439,487 US3944526A (en) | 1974-02-04 | 1974-02-04 | N-cyanosulfonamide resins and intermediates therefor and products thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1493481A true GB1493481A (en) | 1977-11-30 |
Family
ID=23744898
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB475275A Expired GB1493481A (en) | 1974-02-04 | 1975-02-04 | N-cyano-sulphonamide resins and intermediates therefor and products thereof |
| GB451077A Expired GB1493799A (en) | 1974-02-04 | 1975-02-04 | N-cyanosulphonamide resins and products thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB451077A Expired GB1493799A (en) | 1974-02-04 | 1975-02-04 | N-cyanosulphonamide resins and products thereof |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3944526A (enExample) |
| JP (6) | JPS5848571B2 (enExample) |
| BE (1) | BE825103A (enExample) |
| CA (1) | CA1066719A (enExample) |
| DD (2) | DD122816A5 (enExample) |
| DE (1) | DE2504046A1 (enExample) |
| ES (1) | ES434403A1 (enExample) |
| FR (2) | FR2272988B1 (enExample) |
| GB (2) | GB1493481A (enExample) |
| IT (1) | IT1031425B (enExample) |
| NL (1) | NL7501317A (enExample) |
| SU (1) | SU627751A3 (enExample) |
| ZA (1) | ZA75680B (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075185A (en) * | 1976-02-26 | 1978-02-21 | Ciba-Geigy Corporation | N-cyanosulfonamide resins and intermediates therefor and products thereof |
| CA1082222A (en) * | 1976-10-12 | 1980-07-22 | Raymond J. Kray | N-cyanosulfonamide resins and intermediates therefor and products thereof |
| US4383107A (en) * | 1980-08-28 | 1983-05-10 | Ciba-Geigy Corporation | Mixture containing N-cyanolactam for the preparation of nitrogen-containing polyadducts |
| JPS5879017A (ja) * | 1981-11-04 | 1983-05-12 | Hitachi Ltd | イソメラミン環を有するポリマ |
| JPH07120858B2 (ja) * | 1990-03-30 | 1995-12-20 | 株式会社日立製作所 | 多層プリント回路板およびその製造方法 |
| US5705689A (en) * | 1995-06-19 | 1998-01-06 | Associated Universities, Inc. | Aza compounds as anion receptors |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2531468A (en) * | 1949-04-14 | 1950-11-28 | Eastman Kodak Co | Polyvinyl sulfonates and process for their preparation |
| US2853475A (en) * | 1954-04-30 | 1958-09-23 | Du Pont | Nu-chlorinated polysulfonamides |
| USRE24691E (en) * | 1955-02-21 | 1959-08-25 | Process for forming films and filaments | |
| US3308101A (en) * | 1963-09-24 | 1967-03-07 | Du Pont | Novel polymeric materials |
| DE1595698C3 (de) * | 1966-12-05 | 1974-08-01 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Sulfonsäureamidgruppen enthaltenden Acrylnitril mischpolymeren |
| US3654192A (en) * | 1968-08-19 | 1972-04-04 | Minnesota Mining & Mfg | Poly(arylene s-triazines) |
| GB1320683A (en) * | 1969-09-29 | 1973-06-20 | Ici Ltd | Organic cyanamides |
| US3729453A (en) * | 1970-10-30 | 1973-04-24 | Celanese Corp | Process for the preparation of polyamidoximes and polybenzimidazole (pbi)type polymers derived therefrom |
-
1974
- 1974-02-04 US US05/439,487 patent/US3944526A/en not_active Expired - Lifetime
-
1975
- 1975-01-28 CA CA218,803A patent/CA1066719A/en not_active Expired
- 1975-01-31 DE DE19752504046 patent/DE2504046A1/de not_active Ceased
- 1975-02-03 BE BE152986A patent/BE825103A/xx unknown
- 1975-02-03 FR FR7503226A patent/FR2272988B1/fr not_active Expired
- 1975-02-03 IT IT1990975A patent/IT1031425B/it active
- 1975-02-03 DD DD18396575A patent/DD122816A5/xx unknown
- 1975-02-03 ES ES434403A patent/ES434403A1/es not_active Expired
- 1975-02-03 DD DD18970375A patent/DD125641A5/xx unknown
- 1975-02-03 ZA ZA00750680A patent/ZA75680B/xx unknown
- 1975-02-04 SU SU752104243A patent/SU627751A3/ru active
- 1975-02-04 JP JP50014784A patent/JPS5848571B2/ja not_active Expired
- 1975-02-04 NL NL7501317A patent/NL7501317A/xx not_active Application Discontinuation
- 1975-02-04 GB GB475275A patent/GB1493481A/en not_active Expired
- 1975-02-04 GB GB451077A patent/GB1493799A/en not_active Expired
- 1975-06-26 FR FR7520033A patent/FR2279792A1/fr active Granted
-
1982
- 1982-09-29 JP JP57170778A patent/JPS60343B2/ja not_active Expired
- 1982-09-29 JP JP57170780A patent/JPS5946979B2/ja not_active Expired
- 1982-09-29 JP JP57170779A patent/JPS5946978B2/ja not_active Expired
- 1982-09-29 JP JP57170777A patent/JPS60342B2/ja not_active Expired
-
1983
- 1983-03-07 JP JP58037228A patent/JPS5946980B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5946980B2 (ja) | 1984-11-16 |
| JPS60343B2 (ja) | 1985-01-07 |
| FR2279792B1 (enExample) | 1979-08-03 |
| JPS5915429A (ja) | 1984-01-26 |
| FR2272988B1 (enExample) | 1977-11-18 |
| BE825103A (fr) | 1975-08-04 |
| JPS5946978B2 (ja) | 1984-11-16 |
| AU7689074A (en) | 1976-07-01 |
| DD125641A5 (enExample) | 1977-05-04 |
| NL7501317A (nl) | 1975-08-06 |
| GB1493799A (en) | 1977-11-30 |
| JPS58154727A (ja) | 1983-09-14 |
| JPS58154551A (ja) | 1983-09-14 |
| JPS60342B2 (ja) | 1985-01-07 |
| IT1031425B (it) | 1979-04-30 |
| SU627751A3 (ru) | 1978-10-05 |
| JPS5848571B2 (ja) | 1983-10-29 |
| CA1066719A (en) | 1979-11-20 |
| JPS5946979B2 (ja) | 1984-11-16 |
| DD122816A5 (enExample) | 1976-11-05 |
| JPS58154726A (ja) | 1983-09-14 |
| FR2279792A1 (fr) | 1976-02-20 |
| ES434403A1 (es) | 1976-11-16 |
| FR2272988A1 (enExample) | 1975-12-26 |
| ZA75680B (en) | 1976-01-28 |
| JPS58154552A (ja) | 1983-09-14 |
| US3944526A (en) | 1976-03-16 |
| JPS50116422A (enExample) | 1975-09-11 |
| DE2504046A1 (de) | 1975-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1526450A (en) | Process for the production of highly pure polyfunctional cyanic acid esters | |
| GB1493481A (en) | N-cyano-sulphonamide resins and intermediates therefor and products thereof | |
| GB1386091A (en) | Amino pyridine compounds and compositions | |
| GB1496998A (en) | Polyamines with ether groups | |
| GB1211040A (en) | (beta-CARBAMYL-beta-HYDROXYETHYL)-ALKYLAMMONIUM SALTS | |
| GB1303323A (enExample) | ||
| GB1373549A (en) | 3-halogenopyridazines and their preparation | |
| GB1302248A (enExample) | ||
| GB1370067A (en) | N,n1-dibenzyl-n,n1-bis-2-3,4-disubstituted phenyl ethyl- poly methylenediamines | |
| GB1476748A (en) | Production of poly-n-hydrocarbyliminoalanes | |
| GB1504990A (en) | Adducts of carbamoyl sulphoxides and urea | |
| GB1276254A (en) | Process for the manufacture of oximino-dithiolanes | |
| GB1216399A (en) | Copolymers of diallyl ammonium compounds | |
| GB1416740A (en) | Amino-pyridines | |
| GB1414079A (en) | Production of isocyanates | |
| GB1467194A (en) | Acylurea compounds and their use | |
| GB1389479A (en) | Substituted 2,6-dinitroanilines and herbicidal compositions containing them | |
| GB1236553A (en) | New heterocyclic n,n-diglycidyl compounds, processes for their manufacture and their use | |
| GB1366832A (en) | N-sulphenylated oxime carbamates with insecticidal acaricidal and fungicidal activity | |
| GB1223890A (en) | Substituted ureidophenyl carbamates and herbicides containing same | |
| GB1505868A (en) | I-alkyl-i-cyanohydrazines and their use for the production of 1,2,4-triazole derivatives | |
| GB1478942A (en) | Bis-dihalogeno-s-triazinyl ureas | |
| GB1225225A (enExample) | ||
| GB1409993A (en) | Antitussive | |
| GB1150278A (en) | Improvements in or relating to Quaternary Ammonium Compounds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |