| http://www.w3.org/ns/prov#value | - In another embodiment, especially with polyurethanes, such a block copolymer has at least a first polymerized polymer segment (block) and a second polymerized polymer segment (block), polymerized with one another, whereby preferably the first (soft) segment has a Tg1 of less than 25??? C. or even less than 20??? C., or even less than 0??? C., and the second (hard) segment has a Tg2 of at least 50?
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