Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-04-24
2007-04-24
Sanders, Kriellion (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
active
10513663
ABSTRACT:
The invention relates to a polycarbonate composition containing: a) 40–69.5 mass % of aromatic polycarbonate having a limiting viscosity number of 43–52 ml/g, b) 30–50 mass % of sized glass fibres, c) 0.5–5 mass % of at least one partially hydrogenated block copolymer containing at least two terminal polymer blocks A of a monoalkenylarene and at least one intermediate polymer block B of a conjugated diene, and optionally d) 0–25 mass % of other additives, and where the sum of a–d) is 100%. The composition combines improved toughness, for example increased elongation at break and improved environmental stress cracking resistance, and high strength and rigidity. The invention also relates to a process for producing the polycarbonate composition according to the invention, to a moulded part that contains this composition and to an article that contains such a moulded part.
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Bos Martinus L. M.
Van Hartingsveldt Edwin A. A.
DSM IP Assets B.V.
Nixon & Vanderhye P.C.
Sanders Kriellion
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