Preparation of tertiary aromatic amines by reductive alkylation of diaryl secondary amines with ketones
申请人:UNIROYAL, INC.
公开号:EP0014998A1
公开(公告)日:1980-09-03
Tertiary aromatic amines are prepared by the reductive alkylation of diaryl secondary amines with ketones in the presence of hydrogen and a heterogenous hydrogenation catalyst.
Silane-mediated enhancement of rubber storage stability
申请人:TRINSEO EUROPE GMBH
公开号:US10787562B2
公开(公告)日:2020-09-29
The present invention relates to a process for preparing a branched elastomeric polymer by polymerization of a conjugated diene in the presence of a specific branching agent and a specific stabilizing compound. The branched elastomeric polymer exhibits improved storage stability, as reflected by a constant, or less variable, polymer viscosity over time and with reduced temperature dependence.