Multi-component adhesive for producing an adhesive hydrogel
US-2016130484-A1 · May 12, 2016 · US
US10544338B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10544338-B2 |
| Application number | US-201615560652-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2016 |
| Priority date | Mar 24, 2015 |
| Publication date | Jan 28, 2020 |
| Grant date | Jan 28, 2020 |
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Tape adhesives suitable for impregnating processes for insulation systems are described. Embodiments of the tape adhesives include solid insulation material such as mica, anhydride-free impregnating resins and accelerators for the anhydride-free impregnating resins. The tape adhesives may be adjusted with respect to the reactivity of the accelerators for the anhydride-free impregnating resins in relation for the storage stability of the overall insulation systems.
Opening claim text (preview).
What is claimed is: 1. An insulation system comprising a solid insulation material, an anhydride-free impregnating resin, an accelerator, and an oxirane group free tape adhesive having a viscosity of about 5 to about 20 Pa*s at about 70° C., wherein the tape adhesive comprises an addition product formed from an A(OH) n segment comprising bisphenols, diols, triols, and/or higher alcohols, with a Cy segment comprising at least one compound selected from the group consisting of a cyclohexene oxide and a cyclohexene oxide derivative. 2. The system of claim 1 , wherein the accelerator comprises a tri-N-methylpiperazine derivative of trimethylolpropane trimethacrylate. 3. The system of claim 1 , wherein the tape adhesive is present together with the accelerator in a blend, wherein the blend comprises from about 50% to about 99.5% tape adhesive by weight. 4. The system of claim 1 , wherein the tape adhesive is present together with the accelerator in a blend, wherein the blend comprises from about 60% to about 95% tape adhesive by weight. 5. The system of claim 1 , wherein the tape adhesive is present together with the accelerator in a blend, wherein the blend comprises from about 70% to about 90% tape adhesive by weight. 6. The system of claim 1 , wherein the solid insulation material comprises mica. 7. An insulation system comprising a solid insulation material comprising mica, an anhydride-free impregnating resin, an accelerator comprising a tri-N-methylpiperazine derivative of trimethylolpropane trimethacrylate, and an oxirane group free tape adhesive having a viscosity of about 5 to about 20 Pa*s at about 70° C., wherein the tape adhesive comprises an addition product formed from an A(OH) n segment comprising bisphenols, diols, triols, and/or higher alcohols, with a Cy segment comprising at least one compound selected from the group consisting of a cyclohexene oxide and a cyclohexene oxide derivative. 8. The system of claim 7 , wherein the tape adhesive is present together with the accelerator in a blend, wherein the blend comprises from about 50% to about 99.5% tape adhesive by weight. 9. The system of claim 7 , wherein the tape adhesive is present together with the accelerator in a blend, wherein the blend comprises from about 60% to about 95% tape adhesive by weight. 10. The system of claim 7 , wherein the tape adhesive is present together with the accelerator in a blend, wherein the blend comprises from about 70% to about 90% tape adhesive by weight.
epoxy resins · CPC title
Polyethers · CPC title
Polyalkylene oxides · CPC title
containing aromatic or arylaliphatic hydroxyl groups · CPC title
containing hydroxyl groups · CPC title
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