Shoe press belt

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 3/02 (2006.01)

Patent

CA 2623690

The present invention relates to a shoe press belt for a paper machine, comprising a substrate and a polyurethane resin impregnated to laminate on the surfaces of both the shoe side and the felt side thereof, which is excellent in abrasion resistance, crack resistance and processability. In the present invention, a polyurethane resin is produced by using a combination of two kinds of diisocyanates, that is, tolylene diisocyanate (TDI) and diphenylmethane diisocyanate (MDI) as starting materials.

La présente invention concerne une bande pressante à sabot pour une machine à papier, comprenant un substrat et une résine de polyuréthane imprégnée pour stratifier sur les surfaces tant du côté sabot que du côté feutre de celle-ci, qui est excellente en termes de résistance à l~abrasion, de résistance à la fissure et d~aptitude à la transformation. Dans la présente invention, une résine de polyuréthane est produite en utilisant une combinaison de deux types de diisocyanates, à savoir, le diisocyanate de tolylène (TDI) et le diisocyanate de diphénylméthane (MDI) en tant que produits de départ.

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