Invention Grant
- Patent Title: Process for the preparation and conditioning of copper phthalocyanine
- Patent Title (中): 铜酞菁的制备和调理工艺
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Application No.: US672854Application Date: 1976-04-02
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Publication No.: US4077972APublication Date: 1978-03-07
- Inventor: Heinz-Ewald Baurecht , Reinhold Hornle , Rudolf Erdmenger , Gerd Muller , Karlheinz Wolf
- Applicant: Heinz-Ewald Baurecht , Reinhold Hornle , Rudolf Erdmenger , Gerd Muller , Karlheinz Wolf
- Applicant Address: DT Leverkusen
- Assignee: Bayer Aktiengesellschaft
- Current Assignee: Bayer Aktiengesellschaft
- Current Assignee Address: DT Leverkusen
- Priority: DT2432564 19740706; DT2437768 19740806
- Main IPC: B01F7/04
- IPC: B01F7/04 ; B01J19/20 ; C09B47/06 ; C09B67/00 ; C09B47/04
Abstract:
A process and apparatus for conditioning crude copper phthalocyanine pigment prepared in a solvent-free process which comprises kneading at a shear gradient of 300-20,000 sec..sup.-1 for 10 seconds to 15 minutes and with an energy comsumption of 0.4-50 KWH/Kg. of copper phthalocyanine, a mixture of1. 1.0 part crude copper phthalocyanine which has not previously been subjected to extractive boiling;2. 0.1-20 parts of a salt which is soluble in water or in aqueous acids or bases; and3. 0.3-5 parts of an organic or inorganic solvent or mixture thereof which does not have significant amounts of the pigment or the salt.
Public/Granted literature
- US5870321A Method and apparatus to reduce the size of rom used in mathematical computatiions Public/Granted day:1999-02-09
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