| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 02.00 |
| PATENT ASSIGNEE | Ciba Specialty Chemicals |
| PATENT CLAIMS |
Process for increasing MW of polycondensates & at same time stabilizing them, without crosslinking, which comprises heating polyamide, polyester polycarbonate or blend with addition of (A) DiEpoxide comprising terminal epoxide groups & tetra-Me piperidine (sterically hindered amine) radical located centrally between the epoxide groups to T above melting points of polymer in case of crystalline polycondensates or above the Tg in case of amorphous polycondensates |
| PATENT PHOTOCOPY | Available on request |
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