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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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22-01-1998 дата публикации

Direct production of pigmented and/or filled optionally modified polycondensation resin batch

Номер: DE0019633445C1
Автор: JAENECKE LUTZ, FLOSBACH CARMEN DIPL CHEM DR, KLOSTERMANN PETER DIPL CHEM DR, PFEIFFER HEINZ-PETER DIPL CHEM, JAENECKE, LUTZ, 42287 WUPPERTAL, DE, FLOSBACH, CARMEN, DIPL.-CHEM. DR., 42115 WUPPERTAL, DE, KLOSTERMANN, PETER, DIPL.-CHEM. DR., 42117 WUPPERTAL, DE, PFEIFFER, HEINZ-PETER, DIPL.-CHEM. DR., 42349 WUPPERTAL, DE
Принадлежит: HERBERTS GMBH, HERBERTS GMBH, 42285 WUPPERTAL, DE

In the production of (modified) polycondensation resins containing pigments and/or fillers, the resins are produced in batches and pigment and/or filler powder is strewn into the reaction system during the polycondensation and/or modification reaction and after conversion of >= 30 wt.% to \} 95 wt.% of the total amount of components needed for synthesis. Polycondensation is carried out in the melt, optionally containing solvent, especially in stages. Modification is carried out after polycondensation. The powder is added during polycondensation or modification, especially to melt cooled below the reaction temperature. After addition, the melt is reheated to the reaction temperature, which is lower than the reaction temperature before addition. The weight ratio of pigment and/or filler to (modified) resin is (1-0.1):1. Suitable resins are polyesters, alkyd resins and/or polycarbonates and (meth)acrylated, styrenated and/or urethanated polyester and alkyd resins.

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Номер записи: 1
10-06-1999 дата публикации

Für witterungsbeständige Beschichtungen geeignete Pulverlackzusammensetzungen

Номер: DE0019754327A1
Автор: PFEIFFER HEINZ-PETER DIPL CHEM, HEINEMANN STEPHAN, WIGGERSHAUS SABINE, BLATTER KARSTEN DIPL CHEM DR, PFEIFFER, HEINZ-PETER, DIPL.-CHEM.DR., 42349 WUPPERTAL, DE, HEINEMANN, STEPHAN, 42111 WUPPERTAL, DE, WIGGERSHAUS, SABINE, 42281 WUPPERTAL, DE, BLATTER, KARSTEN, DIPL.-CHEM.DR., 65817 EPPSTEIN, DE
Принадлежит:

The invention relates to a coating power composition for producing weather resistant coatings on the basis of essentially linear, crystalline polyesters and can be obtained by reacting essentially aliphatic and/or cycloaliphatic dicarboxylic acids or the anhydrides thereof with diols, optionally in a mixture with polyols, whereby the diols are or contain ethylene glycol.

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Номер записи: 2
02-04-1998 дата публикации

Multilayer coating process for automobile parts and bodies

Номер: DE0019716234A1
Автор: SHAFIK AHMED DIPL CHEM DR, STRANGHOENER DIETER DIPL CHEM, FRITZ PAMELA, KLEIN KLAUSJOERG DIPL ING, PFEIFFER HEINZ-PETER DIPL CHEM, SOLBACH ANDREA, SHAFIK, AHMED, DIPL.-CHEM. DR., 42369 WUPPERTAL, DE, STRANGHOENER, DIETER, DIPL.-CHEM. DR., 45549 SPROCKHOEVEL, DE, FRITZ, PAMELA, 42277 WUPPERTAL, DE, KLEIN, KLAUSJOERG, DIPL.-ING., 42289 WUPPERTAL, DE, PFEIFFER, HEINZ-PETER, DIPL.-CHEM. DR., 42349 WUPPERTAL, DE, SOLBACH, ANDREA, 42277 WUPPERTAL, DE
Принадлежит:

A process for the production of a multi-layer coated automobile part or body is claimed. A sheet metal coil is coated on both sides with a primer coat (I) and baked followed by pressing and deep drawing processes and optionally assembly to form a motor vehicle body. A second coat is then applied by electrophoretic deposition followed by further coats. The primer coat (I) contains electrically conductive components that impart a sufficiently low electrical resistivity to the baked primer coat (I) to allow subsequent electrophoretic deposition to be carried out. (I) contains 55-80 wt.% polyester polyol, 2-10 wt.% aromatic epoxy resin, 0-20 wt.% aminoplast resin and 10-30 wt.% of a blocked polyisocyanate such that the sum of the solid resin components add up to 100 wt.%.

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Номер записи: 3