http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1458153-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-396 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-396 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-00 |
| filingDate | 1974-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1458153-A |
| titleOfInvention | Water-soluble polymers containing aryl nuclei |
| abstract | 1458153 Polymers containing hydroquinone groups FUJI PHOTO FILM CO Ltd 20 Dec 1974 [21 Dec 1973] 55234/74 Heading C3P Polymers containing recurring units of one or both of the following general formulµ in which X is hydrogen, halogen, alkyl, allyl or aryl, R<SP>1</SP> is hydrogen or alkyl, R<SP>2</SP> is hydrogen, alkyl or aryl, R<SP>3</SP> is a divalent group, and M is a cation (including hydrogen); are prepared by reacting an appropriate polymer containing dicarboxylic acid anhydride units with a hydroquinone compound containing an group, and optionally neutralizing residual carboxylic acid groups. The starting polymers may contain units of other monomers. In Examples, the starting polymer is poly(maleic anhydride), a copolymer of styrene with either citraconic anhydride or phenyl maleic anhydride, or a copolymer of maleic anhydride with methyl vinyl ether, vinyl acetate, ethylene, acrylamide, N,N - dimethylacrylamide or isobutylene; the hydroquinone reactant is 2-(3- aminopropyl)hydroquinone, 2-(2-aminopropyl)- hydroquinone, 2,5 - dihydroxy - 6 - bromobenzylamine, 2,5 - dihydroxy - 6 - t - butylbenzylamine, p-aminophenethyl hydroquinone, 2,5-dihydroxybenzylamine, or a mixture of the latter with 2 - (p - methylaminophenethyl) - 6- methyl hydroquinone; and the neutralizing agent (not used in all cases) is sodium or potassium carbonate, or sodium hydroxide or bicarbonate. In Examples 4 and 11, some of the anhydride units form salts with the hydroquinone reactant, the main reaction still being half-amidation. |
| priorityDate | 1973-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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