Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1989-06-28
1990-11-13
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
428107, 428109, 428224, 428284, 428288, B32B 512
Patent
active
049701002
ABSTRACT:
The invention concerns a fabric for use in papermaking machines as the forming wire as well as for the basic fabric for the coated, impermeable bands and belts for extended nip presses and for forming roll coatings. A fabric of such a kind will be provided such that its stability in cross direction is increased, its resistance against unravelling even at high service pressures existing in the press nip of extended nip presses is increased and its abrasive resistance is improved. These objects are attained by the fact that at least a part of the longitudinal threads and/or cross threads of the fabric consist of a mixed polymer the main components thereof are a polymer having a high molecular weight corresponding to a viscosity of at least 0.75 as well as a copolymer with a high molecular weight corresponding to a viscosity of at least 0.80, wherein the percentage of the copolymer within the mixed polymer is 2% to 20%.
REFERENCES:
patent: 4490427 (1984-12-01), Grant et al.
patent: 4724183 (1988-02-01), Human
Bell James J.
F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik
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