Papers containing floc derived from diamino diphenyl sulfone

Details Papers containing floc derived from diamino diphenyl sulfone Papers containing floc derived from diamino diphenyl sulfone

D - Textiles, Paper

21

H

D21H 13/10 (2006.01) D21H 13/20 (2006.01) D21H 13/26 (2006.01) D21H 15/00 (2006.01)

Patent

CA 2710228

This invention relates to papers made with floc containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4'diaminodiphenyl sulfone, 3,3'diaminodiphenyl sulfone, and mixtures thereof. Such papers have higher elongation-at-break and work-to-break (toughness) properties and exhibit less shrinkage at high temperatures than papers made with solely with poly (metaphenylene isophthalamide) floc.

La présente invention concerne des papiers faits de floculats contenant un polymère ou un copolymère dérivé d'un monomère choisi à partir du groupe constitué du 4,4-diaminodiphénylsulfone, du 3,3-diaminodiphénylsulfone, et des mélanges de ceux-ci. De tels papiers présentent des propriétés d'allongement à la rupture et de travail à la rupture (résistance) plus élevées et un rétrécissement en cas de températures élevées inférieur à celui des papiers faits uniquement de floculats de polymères de métaphénylène isophthalamide.

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