Moisture-curable, silane crosslinkable composition

C - Chemistry – Metallurgy – 08 – K

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C08K 5/42 (2006.01) C08F 10/14 (2006.01) C08F 210/14 (2006.01) C08F 210/16 (2006.01) C08F 255/08 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2574515

Silane crosslinkable polymer compositions comprise (i) at least one silane crosslinkable polymer, e.g., ethylene-silane copolymer, and (ii) a catalytic amount of at least one polysubstituted aromatic sulfonic acid (PASA). The PASA catalysts are of the formula: HSO3Ar-R1(Rx)m Where: m is 0 to 3; R1 is (CH2)nCH3, and n is 0 to 3 or greater than 20; Each Rx is the same or different than R1; and Ar is an aromatic moiety.

La présente invention concerne des compositions de polymères de silane réticulables comprenant (i) au moins un polymère de silane réticulable, par exemple le copolymère de silane à base d~éthylène et (ii) une quantité catalytique d~au moins un acide sulfonique aromatique polysubstitué (PASA). Les catalyseurs de la PASA sont représentés par la formule : HSO3Ar-R1(Rx)m dans laquelle: m est compris entre 0 et 3; R1 représente (CH2)nCH3 et n est compris entre 0 et 3 ou supérieur à 20; chaque Rx est le même ou est différent de R1; et Ar représente une fraction aromatique.

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