Abstract: The invention relates to a thermoplastic composition comprising (a) an aromatic polycarbonate and/or a polyester, and (b) an effective amount of a mould release agent containing (b1) a fatty acid ester of an aliphatic polyol having 2-6 hydroxy groups and an aliphatic C10-C36 carboxylic acid; and (b2) a saturated alpha-olefin oligomer of at least one C6-C18 alpha-olefin; the mass ratio of components (b1) and (b2) being from 1/9 to 9/1. With this thermoplastic composition a very regular injection moulding processing is possible, with lower release forces needed during demoulding of parts, and with shorter total moulding cycle-times. The invention further concerns the use of the thermoplastic composition according to the invention for injection moulding of articles and to moulded articles thus obtained.

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.

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.

Abstract: The invention relates to a thermoplastic composition comprising (a) an aromatic polycarbonate and/or a polyester, and (b) an effective amount of a mould release agent containing (b1) a fatty acid ester of an aliphatic polyol having 2-6 hydroxy groups and an aliphatic C10-C36 carboxylic acid; and (b2) a saturated alpha-olefin oligomer of at least one C6-C18 alpha-olefin; the mass ratio of components (b1) and (b2) being from 1/9 to 9/1. With this thermoplastic composition a very regular injection moulding processing is possible, with lower release forces needed during demoulding of parts, and with shorter total moulding cycle-times. The invention further concerns the use of the thermoplastic composition according to the invention for injection moulding of articles and to moulded articles thus obtained.

Abstract: The invention relates to a polymer composition containing a semi-crystalline or glass-forming polymer in a rigid phase and, as impact modifier therein, a rubbery polymer. The polymer composition according to the invention is characterized in that it has no morphological inhomogeneities with a diameter larger than 40, preferably 20 micrometer as visible on a Scanning Electron Microscopy (SEM) picture of the surface of fracture of a test bar broken in a fatigue test. As a result, the elongation at break, the fatigue resistance and the total useful service life of an object manufactured from this composition are much higher.