| Patent application number | Description | Published |
|---|
| 20080214691 | Low-viscosity allophanates containing actinically curable groups - A process for preparing binders containing allophanate groups which contain, at the oxygen atom of the allophanate group that is bonded via two single bonds, organic radicals with activated groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation; the process includes reacting A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and C) optionally further NCO-reactive compounds, and D) in the presence of one or more compounds containing phenoxide groups, as catalysts. The binders can be used in preparing coatings, coating materials, coating compositions, adhesives, printing inks, casting resins, dental compounds, sizes, photoresists, stereolithography systems, resins for composite materials and sealants. | 09-04-2008 |
| 20080262262 | Preparation of polyisocyanates containing uretdione groups using phosphine catalysts - The invention provides a process for isocyanate dimerization (uretdione formation) and a process for preparing polyisocyanates having a high content of uretdione groups, using specific phosphines as catalysts. The phosphines have one or two tertiary alkyl radicals bound directly to phosphorus. | 10-23-2008 |
| 20080311482 | Radiation-crosslinking and thermally crosslinking PU systems comprising iminooxadiazinedione - The present invention relates to polyurethane compositions which cure by radiation and thermal action with crosslinking, and use thereof for the production of holographic media. The polyurethane compositions of the invention comprise A) one or more iminooxadiazinedione-group-containing polyisocyanates, B) one or more polyfunctional, isocyanate-reactive compounds, C) one or more compounds having groups which on exposure to actinic radiation with ethylenically unsaturated compounds with polymerization (radiation-curing groups), D) optionally one or more free radical stabilizers and E) one or more photoinitiators. | 12-18-2008 |
| 20090143558 | Preparation of uretdione polyisocyanates - The invention relates to the use of specific pyridines as catalysts for the dimerization of isocyanates (uretdione formation) and a process for preparing polyisocyanates having a high content of uretdione groups. | 06-04-2009 |
| 20090156778 | Process for producing low-monomer-content organic polyisocyanates - The invention relates to a new industrial process for producing low-monomer-content organic polyisocyanates by oligomerization of organic diisocyanates in a two-phase system. | 06-18-2009 |
| 20110124805 | LOW VISCOSITY ALLOPHANATES CONTAINING ACTINICALLY CURABLE GROUPS - The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures of ≦130° C.
| 05-26-2011 |
| 20110207927 | 1,4,2-DIAZAPHOSPHOLIDINE DERIVATIVES - The present invention relates to novel 1,4,2-diazaphospholidine derivatives, to a process for preparation thereof and to use as catalysts. | 08-25-2011 |
