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    Thermoplastic polyphenylene ether high impact polymer moulding compsn. - contg. vinyl aromatic polymer modified with elastomer, e.g. for sanitary ware
    31.
    发明专利
    Thermoplastic polyphenylene ether high impact polymer moulding compsn. - contg. vinyl aromatic polymer modified with elastomer, e.g. for sanitary ware 未知

    公开(公告)号：DE4100978A1

    公开(公告)日：1992-07-16

    申请号：DE4100978

    申请日：1991-01-15

    Applicant: BASF AG

    Inventor： OSTERMAYER BERTRAM DR ,  ZELTNER DORIS DR ,  BRUESSAU RUDOLF DR ,  STEIERT PETER DR

    IPC: C08L51/04 ,  C08L71/12

    Abstract: Thermoplastic moulding compsn. contains 5-95 (wt.)% polyphenylene ether (I) with Mw = 15000-40000, 5-95% impact-modified polymer (II) based on vinyl-aromatic monomers and modified with 1-4% elastomer (III), and 0-20% other polymers compatible with (I) and (II). Pref., the compsn. contains 20-80% (I) and 20-80% (II). (I) has Mw = 20000-35000. (II) is based on a styrene polymer and (III) is a conjugated diene polymer. (II) is produced by polymerising the monomers of (II) in the presence of (III) or by mixing (III)-free (II) with (II) contg. over 4% (III). The compsn. may also contain up to 1 pt. filler, pref. glass fibres, per pt. mixt. USE/ADVANTAGE - The compsn. is claimed for making mouldings. It has a good total spectrum of the mechanical properties and esp. good reproducibility of the impact strength and tensile strength. Impairment of flow is minimised and smooth mouldings can be made, e.g., by injection moulding or extrusion. The compsn. is esp. suitable for sanitary ware and electronic and electrical components.

    Low-mol.wt. polyphenylene ether] moulding materials - contain PPE with min. 8000-30,000 impact modified polystyrene with specified particle size distribution, and opt. normal additives, etc. e.g. fire retardant and/or pigment
    39.
    发明专利
    Low-mol.wt. polyphenylene ether] moulding materials - contain PPE with min. 8000-30,000 impact modified polystyrene with specified particle size distribution, and opt. normal additives, etc. e.g. fire retardant and/or pigment 未知

    公开(公告)号：DE4209029A1

    公开(公告)日：1993-09-23

    申请号：DE4209029

    申请日：1992-03-20

    Applicant: BASF AG

    Inventor： ZELTNER DORIS DR ,  SEELERT STEFAN DR ,  WEISS ROBERT DR

    IPC: C08L51/04 ,  C08L71/12 ,  C08L85/02

    Abstract: Thermoplastic moulding materials (I) contain (A) 5-90 wt.% polyphenylene ether (PPE) with Mw 8000-30,000, (B) 5-94 wt.% impact-modified vinylaromatic polymer with rubber content 2-30 wt.%, in which the soft component has mean particle dia. 1.5-6.6 microns, with 15-95 wt.% of the particles having mean dia. 0.2-2 microns and 5-85 wt.% having mean dia. 4-7 microns, and (C) 0-60 wt.% normal additives and process aids. Pref. (C) is a fire retardant additive (1-30 wt.%) and/or a pigment (0.1-15 wt.%). (A) has Mw 12,000-25,000. In (B), 50-95 wt.% of the soft component has particle dia. 0.2-2 microns and 5-50 wt.% has dia. 4-7 microns. Pref. (A) is poly-(2,6-dimethyl-1,4-phenylene ether) (PPE) or a homologue thereof. (B) is impact-modified polystyrene (HIPS), prepd. e.g. by polymerisation of styrene in the presence of polybutadiene, polyisoprene etc. Pref. fire retardant is Ph3PO, Ph3PO4, Mobil Antiblaze 19 (RTM), etc. USE/ADVANTAGE - Used for the prodn. of fibres, film and moulded prods. (claimed) Provides modified PPE moulding materials with good processing properties (no delamination, homogeneous pigmentation), balanced mechanical properties (esp. good multiaxial impact strength) and good stress cracking resistance.

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