GB701712A - Mono adducts of polyisocyanates and mercaptans - Google Patents
Mono adducts of polyisocyanates and mercaptansInfo
- Publication number
- GB701712A GB701712A GB20365/51A GB2036551A GB701712A GB 701712 A GB701712 A GB 701712A GB 20365/51 A GB20365/51 A GB 20365/51A GB 2036551 A GB2036551 A GB 2036551A GB 701712 A GB701712 A GB 701712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diisocyanate
- mercaptan
- mercaptans
- group
- specified
- 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
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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
- C08G18/3876—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur containing mercapto groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Mono (thiourethane) substituted organic isocyanates obtained by the reaction of approximately equal molecular proportions of a polyisocyanate and a mercaptan, the thiol group of the mercaptan being the only group in either reactant possessing a reactive hydrogen atom, are used as cross-linking agents in diisocyanate-modified polyesters and polyesteramides. Specified adducts are those resulting from the reaction of 4:41-diphenyl diisocyanate, 1-methyl-2:4-phenylene diisocyanate, 1:5- naphthalene diisocyanate and hexamethylene diisocyanate with 2-mercaptobenzothiazole. Many other mercaptans and polyisocyanates are specified (see Group IV (b)).ALSO:The invention comprises mono (thio-urethan) substituted organic isocyanates <FORM:0701712/IV(b)/1> where R is an organic radical and R1 is an organic radical containing at least one -NCO group and their preparation by reacting approximately equimolecular amounts of an organic polyisocyanate and a mercaptan, the thiol group of the mercaptan being the only group on either reactant which possesses a reactive hydrogen atom. Specified polyisocyanates include aliphatic diisocyanates such as hexamethylene diisocyanate, aromatic polyisocyanates such as 4:41-diphenyl, 1-methyl-2:4-phenylene and 1:5-naphthalene diisocyanates. Specified mercaptans include alkyl and aryl mercaptans and mercaptans containing a thiazole ring such as 2-mercaptobenzothiazole. Preferably the reaction is carried out by dissolving the mercaptan and an excess of the polyisocyanate in an inert solvent and allowing to stand. An example describes the preparation of the mono adduct of 2-mercaptobenzothiazole and 4:41-diphenyl diisocyanate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US701712XA | 1950-11-01 | 1950-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB701712A true GB701712A (en) | 1953-12-30 |
Family
ID=22093582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20365/51A Expired GB701712A (en) | 1950-11-01 | 1951-08-29 | Mono adducts of polyisocyanates and mercaptans |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB701712A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2863899A (en) * | 1956-02-20 | 1958-12-09 | Guy H Harris | Substituted thiolcarbanilic esters |
US3446779A (en) * | 1964-09-01 | 1969-05-27 | Goodyear Tire & Rubber | Product of catalyzing polyurethane formation by means of 2-mercapto-benzothiazoles,thiazoles,oxazoles,imidazoles and imidazolines |
US3742006A (en) * | 1970-09-01 | 1973-06-26 | Phillips Petroleum Co | A polymercaptan composition |
WO2021170615A1 (en) * | 2020-02-26 | 2021-09-02 | Basf Se | Additive mixtures for rheology modification of polymers |
CN114664476A (en) * | 2022-03-17 | 2022-06-24 | 西安隆基乐叶光伏科技有限公司 | Antioxidant conductive copper slurry, preparation method and application thereof |
-
1951
- 1951-08-29 GB GB20365/51A patent/GB701712A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2863899A (en) * | 1956-02-20 | 1958-12-09 | Guy H Harris | Substituted thiolcarbanilic esters |
US3446779A (en) * | 1964-09-01 | 1969-05-27 | Goodyear Tire & Rubber | Product of catalyzing polyurethane formation by means of 2-mercapto-benzothiazoles,thiazoles,oxazoles,imidazoles and imidazolines |
US3742006A (en) * | 1970-09-01 | 1973-06-26 | Phillips Petroleum Co | A polymercaptan composition |
WO2021170615A1 (en) * | 2020-02-26 | 2021-09-02 | Basf Se | Additive mixtures for rheology modification of polymers |
CN114664476A (en) * | 2022-03-17 | 2022-06-24 | 西安隆基乐叶光伏科技有限公司 | Antioxidant conductive copper slurry, preparation method and application thereof |
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