# US 4,400,515 A · Quinacridone mixtures, process for their manufacture and their use as pigments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,400,515 A - Document ID: US4400515A - Status: Granted - Kind: A - Application number: 06/237,505 - Filed: 1981-02-23 - Granted: 1983-08-23 - Earliest claimed: 1978-09-29 - Assignees: Hoechst Aktiengesellschaft - Inventors: Otto Fuchs; Adolf Kroh - Web page: https://patentgrep.com/patent/US4400515A ## CPC - C07D 471/04: Ortho-condensed systems - C09B 48/00: Quinacridones - C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08) - C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P) ## Abstract Compositions of linear trans-quinacridones containing at least one component (I) selected from unsubstituted, chloro- and methyl-substituted quinacridone and at least one component (II) selected from bis-(carbamoyl)-quinacridones, the carbamoyl groups of which are unsubstituted, N-mono-alkyl substituted or N,N-dialkyl-substituted, are pigments useful for coloring plastics and especially lacquers. These compositions are preferably prepared by joint ring closure of the corresponding 2,5-dianilino-terephthalic acids or esters. ## Claims ### Claim 1 A composition of matter comprising 30 to 95% of at least one component of the formula (I) ##STR7## wherein R.sup.1 and R.sup.2 are the same or different and each is hydrogen, chlorine or methyl, and 5 to 70% of at least one component of the formula (II) ##STR8## wherein R.sup.3 is --NH--R.sup.4 or --N(R.sup.5).sub.2, R.sup.4 being hydrogen or alkyl of 1 to 6 carbon atoms and R.sup.5 being methyl or ethyl. ### Claim 2 (depends on 1) A composition as claimed in claim 1, containing 30 to 95% by weight of component(s) (I) and 5 to 70% by weight of component(s) (II). ### Claim 3 (depends on 1) A composition as claimed in claim 1, containing 50 to 95% by weight of component(s) (I) and 5 to 50% by weight of component(s) (II). ### Claim 4 (depends on 1) A composition as claimed in claim 1, wherein component (I) is 2,9-dimethyl-quinacridone. ### Claim 5 (depends on 4) A composition as claimed in claim 4, wherein component (II) is a 2,9-bis-carbamoyl-quinacridone, the carbamoyl groups of which are unsubstituted, monosubstituted by ethyl, n-butyl or n-hexyl, or disubstituted by methyl. ### Claim 6 (depends on 4) A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(carbamoyl)-quinacridone. ### Claim 7 (depends on 4) A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N-n-hexyl-carbamoyl)-quinacridone. ### Claim 8 (depends on 4) A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N-n-butyl-carbamoyl)-quinacridone. ### Claim 9 (depends on 4) A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N-ethyl-carbamoyl)-quinacridone. ### Claim 10 (depends on 4) A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N,N-dimethyl-carbamoyl)-quinacridone. ### Claim 11 (depends on 4) A composition as claimed in claim 4, wherein components (II) are a mixture of 3,10-, 1,8- and 1,10-bis-(N-methyl-carbamoyl)-quinacridone as obtained by ring-closure of 2,5-bis-m-(N-methyl-carbamoyl)-anilino terephthalic acid. ### Claim 12 (depends on 6) A composition as claimed in claim 6, consisting of 85% by weight of component (I) and of 15% by weight of component (II). ### Claim 13 (depends on 7) A composition as claimed in claim 7, consisting of about 66.7% by weight of component (I) and about 33.3% by weight of component (II). ### Claim 14 (depends on 8) A composition as claimed in claim 8, consisting of about 59% by weight of component (I) and about 41% by weight of component (II). ### Claim 15 (depends on 9) A composition as claimed in claim 9, consisting of about 66.7% by weight of component (I) and about 33.3% by weight of component (II). ### Claim 16 (depends on 10) A composition as claimed in claim 10, consisting of about 66.7% by weight of component (II) and about 33.3% by weight of component (II). ### Claim 17 (depends on 11) A composition as claimed in claim 11, consisting of about 84.5% by weight of component (I) and of about 15.5% by weight of the mixture of components (II). ### Claim 18 (depends on 6) A composition as claimed in claim 6, consisting of 94% by weight of component (I) and of 6% by weight of component (II).