New trimerization catalysts from sterically hindered salts
申请人:Air Products and Chemicals, Inc.
公开号:EP1852448A2
公开(公告)日:2007-11-07
The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.
New trimer catalyst with improved processability and surface cure
申请人:Air Products and Chemicals, Inc.
公开号:EP1852449A2
公开(公告)日:2007-11-07
The present invention provides trimerization catalyst compositions having an α,β-unsaturated carboxylate salt and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.
New trimer catalyst additives for improving foam processability
申请人:Air Products and Chemicals, Inc.
公开号:EP1852450A2
公开(公告)日:2007-11-07
The present invention provides trimerization catalyst compositions and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions. The catalyst composition is the contact product of at least one α,β-unsaturated carboxylate salt and at least one second carboxylate salt.
Provided herein are microbial infection indicator devices, including dressing with indicators, standalone indicator inserts or disks that can be freely placed at a wound site or dressing, and applications thereof for displaying a visible or detectable signal to a user upon detection of an analyte or biomarker indicative of an infection, such as a color change.
Trimerization catalysts from sterically hindered salts and tertiary amines having isocyanate reactive groups
申请人:Evonik Operations GmbH
公开号:US10759892B2
公开(公告)日:2020-09-01
The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt used in combination with a tertiary amine catalysts having isocyanate reactive groups and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.