Epoxy resins and process for making the same
This invention relates to controlled conversion epoxy resins, hereinafter referred to as CCR resins, to a process for preparing said resins and to compositions containing these resins. A controlled conversion resin having an epoxy functionality of greater than 2 and comprising moieties derived from...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
29.04.2003
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| Online Access | Get full text |
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| Summary: | This invention relates to controlled conversion epoxy resins, hereinafter referred to as CCR resins, to a process for preparing said resins and to compositions containing these resins.
A controlled conversion resin having an epoxy functionality of greater than 2 and comprising moieties derived from epoxy resin, dihydric phenol, acid anhydride, or amine. The resin is prepared by reacting an epoxy resin with a dihydric phenol, an acid anhydride, or amine or other branching agent in the presence of a catalyst and terminating the reaction at a point such that the reaction product contains both epoxy and terminal hydroxyl groups. |
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