| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 10.99 |
| PATENT ASSIGNEE | USA - NASA |
| PATENT CLAIMS |
In the process for prepn of poly(arylene ethers) by addition-type polymn & step growth type polymn in which procedure monomers are reacted to form a growing polymer chain, the IMPROVEMENT therein which comprises - Employing an effective amount of a trifunctional phenol mo nomer in polymn procedure to form an effective amount of member selected from: branched poly(arylene ethers) & star-shaped poly(arylene ethers) - Providing a mixt of poly(arylene ethers) having lower melt T & lower melt visc than corresponding linear polymer of equiv MW |
| PATENT PHOTOCOPY | Available on request |
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