http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-970333-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-28 |
| filingDate | 1962-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-970333-A |
| titleOfInvention | A process for the prepartation of resins |
| abstract | Liquid polymers or copolymers of conjugated diolefins of molecular weights from 500 to 8,000 are reacted with cyclic unsaturated acid anhydrides in the absence of free radicals and in the presence of a free radical polymerization inhibitor. The liquid polymers preferably have molecular weights from 700 to 5,000 and more than 25% (more preferably more than 80%) of the units derivatives from diolefins in the 1.4-configuration. Specified polymers are the polybutadienes, polyisoprenes, butadiene-styrene, isoprene-styrene, butadiene-mesityl oxide, isoprene-mesityl oxide, butadiene-limonene, and isoprene-limonene copolymers. Other diolefin comonomers are vinyl cyclohexenes, unsaturated carboxylic acids, halides, alcohols, ethers or ketones. Maleic anhydride is the preferred anhydride but tetrahydrophthalic, itaconic, citraconic, aconitic, dimethyl maleic, diethyl maleic, chloromaleic chloroglutaconic and hydroxyglutaconic anhydrides are also specified. The amount of maleic anhydride used preferably lies within the range 0.1 to 15% based on the polymer. Specified free radical inhibitors are hydroquinone, t-amyl hydroquinone, diphenylamine and 2-6-di-tert-butyl-4-methylphenol. Suitable solvents for the reaction are xylene, toluene and high boiling straight run mineral spirits but solvents are not essential. The products may be used to coat metals.ALSO:Metal surfaces are coated with a layer of a resin prepared by reacting a liquid polymer or copolymer of a conjugated diolefin of molecular weight from 500 to 8000 with a cyclic unsaturated acid anhydride in the absence of free radicals and in the presence of a free radical polymerization inhibitor (see Division C3). Butadiene and isoprene are specified diolefins, styrene, mesityl oxide and limonene their comonomers while maleic anhydride is the preferred anhydride. The products may be spread on metal surfaces in 0,1-2,0 mil thickness and baked at 150-260 DEG C. The coating may be applied by spraying, brushing or doctoring from a solvent. In Examples (11) the reaction product of butadiene-mesityl oxide with varying amounts of maleic anhydride, of isoprenemesityl oxide with varying amounts of maleic anhydride and of the two copolymers with other anhydrides are dissolved in methyl ethyl ketone or xylene and applied to tin plate steel sheets or to steel sheets and baked. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102401567-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102401566-A |
| priorityDate | 1961-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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