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Jan Weikard
Jan Weikard, Ordenthal-Erberich DE
| Patent application number | Description | Published |
|---|---|---|
| 20090104395 | Disc-shaped high-density recording mediums - Optical recording mediums comprising a substrate and a recording layer and a light transmitting layer sequentially disposed on the substrate; wherein the substrate comprises one or more parts selected from the group consisting of injection molded parts, injection molded sandwich structures having a molded surface layer and a molded core layer or two injection molded parts which are UV-bonded, and combinations thereof; and wherein the substrate has a Young's modulus E of at least 2.15 GPa and a Q factor of lower than 160 measured at 25° C. at 2000 Hz in accordance to ASTM E 756-05. | 04-23-2009 |
| 20110028754 | PROCESS FOR HETEROGENEOUSLY CATALYZED ESTERIFICATION OF (METH)ACRYLIC ACID WITH OXYALKYLATED POLYOLS - The present invention relates to a process for heterogeneously catalyzed partial esterification of (meth)acrylic acid with oxyalkylated polyols, wherein the oxyalkylated polyols have at least 3 free hydroxyl groups, and wherein the catalyst is selected from the group comprising acidic ion exchange resins and/or acidic zeolites. The invention further relates to (meth)acrylic esters and urethane acrylates, obtained by a process according to the present invention, and to the use thereof as radiation-curable compounds. | 02-03-2011 |
| 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 |
Jan Weikard, Odenthal DE
| 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 |
| 20080312403 | AROMATIC URETHANE ACRYLATES HAVING A HIGH REFRACTIVE INDEX - The invention relates to novel aromatic urethane (meth)acrylates having a high refractive index, a process for the preparation thereof and a process for the production of holographic media. | 12-18-2008 |
| 20100105792 | RADIATION-CURING BINDERS AND A PROCESS FOR THEIR PREPARATION - The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures ≦130° C. | 04-29-2010 |
Jan Weikard, Odenthal-Erberich DE
| Patent application number | Description | Published |
|---|---|---|
| 20090269568 | DEFORMABLE FILM WITH RADIATION-CURING COATING AND SHAPED ARTICLES PRODUCED THEREFROM - The present invention relates to a film, further comprising a radiation-curing coating, wherein the coating comprises a polyurethane polymer which contains (meth)acrylate groups and which is obtainable from the reaction of a reaction mixture comprising (a) polyisocyanates and (b1) compounds which comprise (meth)acrylate groups and are reactive towards isocyanates and wherein the coating further comprises inorganic nanoparticles with an average particle size of ≧1 nm to ≦200 nm. It also relates to a process for the production of such coated films, the use of such films for the production of shaped articles, a process for the production of shaped articles with a radiation-cured coating and shaped articles which can be produced by this process. | 10-29-2009 |
| 20090269589 | BLOCK-RESISTANT, RADIATION-CURABLE COATING SYSTEMS BASED ON HIGH MOLECULAR MASS, AQUEOUS POLYURETHANE DISPERSIONS - The present invention describes block-resistant, radiation-curable coating systems based on high molecular mass, aqueous polyurethane dispersions, a process for preparing them, the use of the coating systems as paints and/or adhesives, and also articles and substrates provided with these paints and/or adhesives. | 10-29-2009 |
Jan Weikard, Odenthal-Eberich DE
| Patent application number | Description | Published |
|---|---|---|
| 20090053530 | Process for producing hard coating systems based on aqueous polyurethane dispersions - The present invention describes the preparation of an aqueous polyurethane dispersion which is cured by radiation, and its use as binder. | 02-26-2009 |