PATENT ASSIGNEE'S COUNTRY | Germany |
UPDATE | 06.99 |
PATENT ASSIGNEE | Wolff Walsrode AG |
PATENT CLAIMS |
Watertight & breathable & antistatic film produced without support by extrusion, wherein the film has DIN friction coef. determined according DIN 53 375 < 0.8 & formed from - Hard-segment-terminated TP PU elastomer resins with MFI at 190C under load of 10 kg of < 70 g/min (ISO 1133) - The soft segment of resins consisting of PEO &/or contg ethylene oxide reaction prodts & rel % of soft segment 35-60% Wherein the synthesis of said TP PU elastomer comprises - First reacting polyether soft segment, chain extender & aromatic diisocyanate - Then adding a capping alc. |
PATENT PHOTOCOPY | Available on request |
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