C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/08 (2006.01) C08G 18/32 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08G 18/73 (2006.01) C08G 18/75 (2006.01) C08L 75/06 (2006.01)
Patent
CA 2326365
A molding composition comprising thermoplastic polyurethane is disclosed. The polyurethane is characterized in having ultimate tensile strength (UTS) and elongation at break (EAB) values after hot storage which are, each, at least 60% of the corresponding value before hot storage, glass transition temperature equal to or lower than -50°C, UTS and EAB values after hydrolytic storage which are, each, at least 80% of the corresponding value before hydrolytic storage, and Shore A hardness of 70 to 95. The polyurethane is a product of a reaction comprising an aliphatic diisocyanate, a mixture of polyols and a chain extender and contains a UV stabilizer, an antioxidant and an optional anti-hydrolysis agent.
Braeuer Wolfgang
Hoppe Hans-Georg
Kaufhold Wolfgang
Manning Steven C.
Wussow Hans-Georg
Aktiengesellschaft Bayer
Corporation Bayer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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