http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-486972-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02952b53249649e8f35d68904f49ad0b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G8-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G8-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-28 |
| filingDate | 1936-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1938-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-486972-A |
| titleOfInvention | Process for the manufacture of lacquer resins |
| abstract | Alkylated condensation products are prepared by treating resinous condensation products derived from phenols or cresols and formaldehyde with aliphatic or cycloaliphatic olefines (containing at least three carbon atoms) in the presence of perchloric acid. The products may be hydrogenated. Alkyl radicals that may be introduced include propyl, butyl, isobutyl, diisobutyl, triisobutyl, amyl, heptyl, octyl, decyl, octadecyl, cyclohexyl, butylcyclohexyl, and octylcyclohexyl. The products are generally soluble in benzene, toluene, xylene, methanol, ethanol, propanol, cyclohexanol, dioxane, acetone, amyl acetate, ethyl acetate, tetra- and deca-hydronaphthalene, carbon, tetrachloride, trichlorethylene and fatty oils such as linseed oil stand oil. In examples, a phenol-aldehyde resin obtained by condensing phenol with formaldehyde in the presence of dilute hydrochloric acid is suspended in decahydronaphthalene and perchloric acid and alkylated with (1) isoamylene or (2) butylene, and the product from butylene is hydrogenated in the presence of a mixed catalyst containing nickel. Samples have been furnished under Sect. 2 (5) of products obtained by condensing phenol and formaldehyde (A) in the presence of ammonia and alkylating the product by means of di-iso-butylene, (B) in the presence of ammonium chloride and alkylating by means of cyclohexene. The Provisional Specification refers in general to the introduction of the alkyl groups and to the use of sulphuric acid as a catalyst. Specifications 428,438 and 469,548 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-883649-C |
| priorityDate | 1936-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.