Radiation curable oligomers based on tris(2-hydroxyethyl) isocyanurate
US4183796A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1978 |
| Grant date | Jan 15, 1980 |
| Priority date | — |
| Expiry date | Feb 9, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A radiation curable oligomer which cures to provide a combination of improved elongation and tensile strength is constituted by a selected hydroxy functional polyester having its active hydrogen atoms end-capped by reaction with ethylenically unsaturated monoisocyanate. This polyester is the reaction product of one mole of tris (2-hydroxyethyl) isocyanurate with three moles of saturated dicarboxylic acid and three moles of diol, these proportions being variable within the limits of .+-.20%, the polyester reaction product having an acid value of less than 20, preferably less than 5, and providing hydroxyl-terminated branches having an average length corresponding to a calculated molecular weight of 100-1500.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.