http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1082918-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_634538388f2dd27ea0a8bc2a2032c517 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-136 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D295-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-00 |
| filingDate | 1966-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1967-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1082918-A |
| titleOfInvention | Quaternary leucoauramine compounds |
| abstract | The invention comprises quaternary leucoauramine compounds of formula <FORM:1082918/C4-C5/1> wherein R is an alkyl group <FORM:1082918/C4-C5/2> is a heterocyclic nucleus containing 5 or 6 members, R1 is alkyl, cycloalkyl or aralkyl, R2 is alkyl and A- is an anion; or of formula <FORM:1082918/C4-C5/3> wherein <FORM:1082918/C4-C5/4> is a heterocyclic nucleus containing 5 or 6 members, n is 1-18, R3 is alkyl or R2 and R3 are linked to form with the N+ atom a heterocyclic group; or of formula <FORM:1082918/C4-C5/5> wherein X is H, alkyl, aryl, alkaryl or aralkyl; or of formula <FORM:1082918/C4-C5/6> wherein Y is arylene; or of formula <FORM:1082918/C4-C5/7> wherein Z is a heterocyclic nucleus containing 5 or 6 ring members linked to the indicated N atom through a ring C atom. The compounds are prepared by quaternizing a tertiary amine corresponding to one of the above formulae. The tertiary amines are prepared by condensing a 4,41 - bis (dialkylamino) - benzhydrol with an appropriate secondary amine. The compounds are used in the production of impact-sensitive copy sheets (see Divisions D1-D2). In examples 4,41-bis (dimethylamino)-benzhydrol is refluxed in MeOH with N-methyl-piperazine to yield bis (p-dimethyl-amino-phenyl) - N1 - methyl - piperazinyl - methane which is quaternized with dimethyl or diethyl sulphate or benzyl chloride.ALSO:Lencoausamine compounds of formula <FORM:1082918/D1-D2/1> wherein R is an alkyl group and the N atom is substituted by a group containing a quarternary N atom or is part of a heterocyclic ring containing a quaternary N atom (see Division C4-5) are used as colour precursors in impact-sensitive copy sheets. The compounds are water-soluble and may be applied to paper as a coating in the internal phase of an aqueous wax emulsion (water-in-oil type). The precursors develop blue colours on contact with acid substances such as niccinic acid or bentonite. |
| priorityDate | 1965-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.