Process for producing hydrogenated rubbers

Process for producing hydrogenated rubbers which allows an easy and effective deactivation of the living polymer before the hydrogenation step. The deactivation of living polymer is carried out using compounds with very good solubility in water of formula R-OH, R-COOH or compound of type R'n-Si...

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Bibliographic Details
Main Authors SORIANO; MARIA JOSE ESPINOSA, FERRER; MARIA DOLORES PARELLADA, CALLE; JUAN ANTONIO BARRIO
Format Patent
LanguageEnglish
Published 16.11.1999
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
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Summary:Process for producing hydrogenated rubbers which allows an easy and effective deactivation of the living polymer before the hydrogenation step. The deactivation of living polymer is carried out using compounds with very good solubility in water of formula R-OH, R-COOH or compound of type R'n-Si-Cl4-n, R'n-Sn-Cl4-n, with n comprised between 0 and 3, extremes included; wherein R is a C2-C20 alkyl group optionally containing one or more polar functional groups selected from C-OH, COOH, and R' is a C1-C20 alkyl or C6-C20 aryl. The catalysts used in the hydrogenation of the deactivated polymer are titanocene compounds, being the most preferred those of formula Cp2 Ti (PhOCH3)2 and Cp2 Ti (CH2PPh2)2.
Bibliography:Application Number: US19970879632