Patent ID: 8772421

Claim:
A crosslinkable polymeric composition comprising at least one crosslinkable polymer having one or more reactive silyl functional groups that are crosslinkable with or without a crosslinker, wherein the composition comprises either: a) a crosslinkable polymer whose polymer backbone includes a first polyether segment comprised of a plurality of polypropylene oxyalkylene units OX 1 and a second polyether segment comprised of a plurality of poly tetrahydrofuran oxyalkylene units OX 2 ; or b) a mixture of crosslinkable polymers comprising crosslinkable polymer a) and at least one first crosslinkable polymer whose polymer backbone includes a polyether segment comprised of a plurality of polypropylene oxyalkylene units OX 1 and a second crosslinkable polymer whose polymer backbone includes a polyether segment comprised of a plurality of poly tetrahydrofuran oxyalkylene units OX 2 ; and the polyether segment comprised of first oxyalkylene units OX 1 and the polyether segment comprised of second oxyalkylene units OX 2 have a weight ratio of 10:90 to 90:10.