| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | Sumitomo Bakelite |
| PATENT CLAIMS |
High MW high-ortho novolak type phenolic resin which is a condensate of - Trifunctional phenol compd with - Aldehyde compd Wherein resin is solvent soluble, has MW > 50,000 calculated by polystyrene standard, has CH2 bonds at ortho-ortho position in respect to phenolic -OH in amount > 55% based on total CH2 bonds & has an extraction water electric conductivity < 10 micro.S/cm |
| PATENT PHOTOCOPY | Available on request |
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