C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/54 (2006.01) C08F 8/42 (2006.01) C09J 7/02 (2006.01) C09J 123/18 (2006.01) C09J 139/04 (2006.01)
Patent
CA 2094038
A pressure-sensitive adhesive that can adhere aggressively to both polar and nonpolar substrates and has good internal strength at high temperatures is provided by heat or radiation curing a blend of an ethylenically-unsaturated .alpha.-olefin polymer, a crosslinker having at least 2 hydrosilyl groups, and a hydrosilation catalyst. A preferred hydrosilane crosslinker has formula (I), wherein R is an alkyl group having 1-6 carbon atoms, and n' is a number in the range of 2 to 35.
On obtient un adhésif autocollant qui peut adhérer fortement aux substrats polaires et non polaires et qui possède une bonne résistance interne à haute température par durcissement à la chaleur ou par rayonnement d'un mélange d'un polymère d'alpha-oléfine éthyléniquement insaturé, d'un réticulant portant au moins 2 groupes hydrosilyle et d'un catalyseur d'hydrosilylation. Un réticulant à base d'hydrosilane préféré présente la formule (I), où R est un groupe alkyle de 1-6 atomes de carbone et n'est un nombre compris entre 2 et 35.
Babu Gaddam N.
Boardman Larry D.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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