Polyhydantoin powder prepn. from reaction solns - by dilution with water-immiscible solvent and spraying with steam
Polyhydantoin powders are prepd. continuously by setting polyhydantoin reaction solns. to solids concn. 2-30(5-15)wt.% with a water-immiscible low-boiling solvent; spraying with steam through a two-component nozzle into a heated tube-system and sepg. solvent-free polyhydantoin powder from gas-phase...
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| Main Authors | , , |
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| Format | Patent |
| Language | English German |
| Published |
19.02.1976
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| Edition | 2 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | Polyhydantoin powders are prepd. continuously by setting polyhydantoin reaction solns. to solids concn. 2-30(5-15)wt.% with a water-immiscible low-boiling solvent; spraying with steam through a two-component nozzle into a heated tube-system and sepg. solvent-free polyhydantoin powder from gas-phase in a cyclone and if necessary removing residual solvent by after-drying. The non-tacky dry powder obtd. can be easily processed into high temp.-resistant mouldings, foils, e.g., for electrical insulation, films, coatings and fibres. |
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| AbstractList | Polyhydantoin powders are prepd. continuously by setting polyhydantoin reaction solns. to solids concn. 2-30(5-15)wt.% with a water-immiscible low-boiling solvent; spraying with steam through a two-component nozzle into a heated tube-system and sepg. solvent-free polyhydantoin powder from gas-phase in a cyclone and if necessary removing residual solvent by after-drying. The non-tacky dry powder obtd. can be easily processed into high temp.-resistant mouldings, foils, e.g., for electrical insulation, films, coatings and fibres. |
| Author | HUCKS, UWE, 4100 DUISBURG JERCHEL, KARL-FRIEDRICH.., 4150 KREFELD VERNALEKEN, HUGO., 4150 KREFELD |
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| Discipline | Medicine Chemistry Sciences |
| DocumentTitleAlternate | VERFAHREN ZUR HERSTELLUNG VON POLYHYDANTOINPULVER |
| Edition | 2 |
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| Notes | Application Number: DE19742437913 |
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| PublicationCentury | 1900 |
| PublicationDate | 19760219 |
| PublicationDateYYYYMMDD | 1976-02-19 |
| PublicationDate_xml | – month: 02 year: 1976 text: 19760219 day: 19 |
| PublicationDecade | 1970 |
| PublicationYear | 1976 |
| RelatedCompanies | BAYER AG, 5090 LEVERKUSEN |
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| Snippet | Polyhydantoin powders are prepd. continuously by setting polyhydantoin reaction solns. to solids concn. 2-30(5-15)wt.% with a water-immiscible low-boiling... |
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| SubjectTerms | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| Title | Polyhydantoin powder prepn. from reaction solns - by dilution with water-immiscible solvent and spraying with steam |
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