http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-903068-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7912cf53cffba0eab4f4d7816adb7013 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-226 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-22 |
| filingDate | 1961-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1962-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-903068-A |
| titleOfInvention | Organotin sulphur compounds |
| abstract | Vinyl chloride polymer and copolymer compositions may be stabilized by the addition of the reaction product obtained by reacting a diorganotin oxide of formula R2SnO where R is a substituted or unsubstituted phenyl group or an alkyl or aralkyl group containing not more than 12 carbon atoms, or the corresponding hydroxide, with a polyester of pentaerythritol and mercaptoacetic acid or b -mercapto propionic acid, or by reacting the corresponding diorganotin dichloride or dibromide with either of said esters in the presence of a hydrogen halide acceptor or with a salt of either of said esters, the reactants being present in a molar ratio of approximately 2 parts of the organotin compound to 1 part of the ester or salt. Preferably the tetra-ester is employed. The vinyl chloride may be copolymerized with vinyl alcohol, vinyl esters of aliphatic carboxylic acids, e.g. vinyl acetate, esters, nitriles and amides of unsaturated carboxylic acids, e.g. acrylic and methacrylic, diene compounds or with unsaturated dicarboxylic acids or their anhydrides. The compositions may also contain plasticizers.ALSO:The invention comprises reaction products obtained by reacting a diorganotin oxide of formula R2SnO wherein R is a substituted or unsubstituted phenyl group or an alkyl or aralkyl group containing not more than 12 carbon atoms, or the corresponding hydroxide, with a polyester of pentaerythritol and mercaptoacetic acid or b -mercaptopropionic acid, or by reacting the corresponding diorganotin dichloride or dibromide with either of said esters in the presence of a hydrogen halide acceptor or with a salt of either of said esters, the reactants being present in a molar ratio of approximately 2 parts of the organotin compound to 1 part of the ester or salt. Preferably the tetra-ester is employed. The reaction is preferably carried out in an inert vehicle such as toluene, xylene, benzene, cyclohexane, acetone, water or chloroform. The product may also be obtained by fusing the reactants in the absence of any vehicle. The compounds of the invention may be used as stabilizers for polyvinyl chloride polymer and copolymer compositions. |
| priorityDate | 1960-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.