PRODUCTION METHOD OF PROFILED FITTINGS FOR HYDRAULIC CYLINDERS

The process comprises production based on polymer obtained by reaction at 90-120 degrees C of 100g of polyethylene glycol adipate prepolymer and 30-50g of 4.4-dibenzyl diisocyanate, with 5-7g of a mixture of monoethylene glycol and trimethyl propane. The reaction takes place in the presence of 1-100...

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Bibliographic Details
Main Authors CERNEA DUMITRU, TOC VALER, PASCARIU ALEXANDRU NICOLAE
Format Patent
LanguageEnglish
Published 02.12.1991
Edition4
Subjects
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Summary:The process comprises production based on polymer obtained by reaction at 90-120 degrees C of 100g of polyethylene glycol adipate prepolymer and 30-50g of 4.4-dibenzyl diisocyanate, with 5-7g of a mixture of monoethylene glycol and trimethyl propane. The reaction takes place in the presence of 1-1000 ppm relative to the mixture weight of organic dibasic acid dichloride as hardener, gelling agent and viscosity controller. The resulting polymer is poured into dies at 120 degrees.C.
Bibliography:Application Number: RO19880137216