Polymers with improved strength comprising mixed oxyalkyl units
The invention relates to compositions that are produced using a mixture from two or more polyols and to a method for producing said compositions. The invention also relates to the use of said compositions as adhesives, sealing compounds, surface-coating agents, fillers or for producing molded parts.
1. 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.
2. 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 oxyalkylene unit OX 1 and a second oxyalkylene unit OX 2 ; or
b) a mixture of crosslinkable polymers comprising crosslinkable polymer a) and at least one first crosslinkable polymer whose polymer backbone includes an oxyalkylene unit OX 1 and a second crosslinkable polymer whose polymer backbone includes an oxyalkylene unit OX 2 ; wherein the oxyalkylene unit OX 1 is a polypropylene and the oxyalkylene unit OX 2 is a poly tetrahydrofuran, and wherein the oxyalkylene unit OX 1 and the oxyalkylene unit OX 2 have a weight ratio of 10:90 to 90:10.
3. The composition of claim 2 wherein the oxyalkylene unit OX 1 has a molecular weight of about 2,000 to about 40,000.