Patent application number | Description | Published |
20080258338 | POLYCARBONATE MOLDING COMPOSITIONS - The invention relates to talcum-reinforced polycarbonate compositions comprising: A) a polycarbonate, polyester carbonate or a mixture thereof, B) optionally, at least one polymer selected from one of the group consisting of graft polymer produced in an emulsion polymerisation process, graft polymer produced in a bulk polymerisation process, rubber-free vinyl homopolymer and rubber-free vinyl copolymer, C) talcum, D) a Brönstedt acid, and optionally E) at least one polymer additive, and wherein the composition is free of aromatic or partially aromatic polyesters. Compared to the known prior art the inventive compositions have an improved ductility, thermal resistance towards deformation and thermal stability during compounding and processing (molding). The invention also provides for the use of the composition for the production of molded articles and two-component structural parts. | 10-23-2008 |
20090082516 | GLASS FIBER REINFORCED POLYCARBONATE MOLDING COMPOSITIONS - The invention relates to glass fiber reinforced polycarbonate compositions and molding compositions of the present inventor and distinguished by high rigidity, high flowability, high processing stability, good chemical resistance and good aging resistance vis-à-vis the effects of light and heat compared with the prior art. The present invention also relates to the use of the compositions for the production of shaped articles and to shaped articles comprising the compositions according to the invention. | 03-26-2009 |
20090160103 | FLAMEPROOFED IMPACT-MODIFIED POLYCARBONATE COMPOSITION - The present invention relates to a polycarbonate composition comprising
| 06-25-2009 |
20090163629 | FLAMEPROOFED IMPACT-MODIFIED POLYCARBONATE COMPOSITION - The present invention relates to impact-modified polycarbonate compositions comprising
| 06-25-2009 |
20090198010 | FLAMEPROOFED IMPACT-MODIFIED POLYCARBONATE COMPOSITION - The present invention relates to a polycarbonate composition comprising
| 08-06-2009 |
20090215945 | FLAMEPROOFED IMPACT-MODIFIED POLYALKYLENE TEREPHTHALATE/POLYCARBONATE COMPOSITIONS - The present invention relates to an impact-modified polyalkylene terephthalate/polycarbonate composition comprising
| 08-27-2009 |
20090281216 | IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS WITH HIGH HYDROLYSIS RESISTANCE AND A LIGHT NATURAL COLOUR - The present invention relates to polycarbonate compositions comprising: A) an aromatic polycarbonate and/or aromatic polyester carbonate; B) a graft polymer obtainable by co-precipitation of a mixture of at least two graft polymer dispersions B.1 and B.2, wherein the production of the graft polymer component B.1 takes place using at least one redox system as initiator and wherein the production of the graft polymer component B.2 takes place using at least one persulfate compound as initiator; C) optionally a vinyl (co)polymer and/or polyalkylene terephthalate; D) optionally a phosphorus-containing flame retardant; E) at least one phenolic antioxidant; F) optionally a neutral phosphorus- or sulfur-containing co-stabilisers (synergists); and G) optionally additives. Compositions of the present invention are distinguished by an optimum combination of good hydrolysis resistance and a light natural colour. The present invention also relates to the use of polycarbonate compositions for the production of mouldings and mouldings per se as well. | 11-12-2009 |
20090312482 | IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS - The present invention relates to non-aging, impact-modified polycarbonate compositions and moulding compositions comprising: A) from 60 to 86 parts by weight (based on the sum of components A+B+C) of aromatic polycarbonate and/or aromatic polyester carbonate, B) from 4 to 12 parts by weight (based on the sum of components A+B+C) of graft polymer comprising: B.1 from 10 to 50 wt. % (based on the graft polymer B) of a shell of at least one vinyl monomer, and B.2 from 90 to 50 wt. % (based on the graft polymer B) of a graft base of silicone-acrylate composite rubber, C) from 10 to 30 parts by weight (based on the sum of components A+B+C) of a polymer or copolymer based on vinyl monomer, and D) from 0 to 20 parts by weight of polymer additives. Components B and C are present in a ratio of the parts by weight of B:C in the range from 1:1.3 to 1:3.5. A composition of the present invention is generally free of inorganic fillers, and is distinguished by an improved balance of multiaxial low-temperature impact strength and flowability, good dyeability and a high heat distortion resistance. | 12-17-2009 |
20100160508 | FLAME RETARDANT IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS - The present disclosure relates to impact-modified polycarbonate compositions which comprise a graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt. % (based on the graft base), talc having a d | 06-24-2010 |
20100160534 | Impact-modified polycarbonate compositions - Impact-modified polycarbonate compositions are disclosed that comprise a first graft polymer based on silicone-acrylate composite rubber as graft base, wherein the amount of silicone rubber is from 65 to 95 wt. % (based on the graft base), and a second graft polymer containing free copolymer, that is to say copolymer that is not chemically bonded to the rubber, and having a weight-average molecular weight of from 60,000 to 150,000 g/mol. The use of the polycarbonate compositions in the production of moulded articles, and to the moulded articles themselves are also disclosed. The compositions and moulding compositions have an optimum combination of good elongation at tear, good hydrolytic stability and low melt viscosity. | 06-24-2010 |
20100267889 | IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS FOR THE PRODUCTION OF METALLISED MOULDINGS WITH HOMOGENEOUS SURFACE GLOSS - The invention relates to impact-modified polycarbonate compositions which are distinguished by high heat resistance and good melt flow behaviour. In addition, the mouldings produced from the compositions according to the invention in an injection-moulding process can be metallised, the resulting metallised mouldings having a surface with a particularly high and, in particular, homogeneous gloss. The invention thus also provides the metallised mouldings produced from the compositions according to the invention. | 10-21-2010 |
20110003918 | FLAMEPROOFED IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS - The present disclosure relates to an impact-modified polycarbonate composition which comprise a first graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt.% (based on the graft base), a second graft polymer containing a diene rubber, and phosphorus-containing flameproofing agent, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and moulding compositions according to the disclosure have an optimum combination of good flameproofing at thin wall thicknesses, good resistance to chemicals and hydrolysis and low melt viscosity. | 01-06-2011 |
20110135934 | Process For The Production Of Polyurethane Composite Components - The invention relates to a process for the production of a composite component, comprising a) a support of a thermoplastic composition, and b) at least one polyurethane layer in direct contact with the support. The process involves (i) in a first process step the melt of the thermoplastic composition is injected into a first mould cavity and is subsequently cooled, the thermoplastic composition comprising: A) 65.0 to 90.0 parts by wt., based on the sum of components A and B, of at least one polymer chosen from the group of aromatic polycarbonates, aromatic polyester carbonates and aromatic polyesters, B) 10.0 to 35.0 parts by wt., based on the sum of components A and B, of an optionally rubber-modified vinyl (co)polymer and C) 0 to 30.0 parts by wt., based on the sum of components A to C, of at least one commercially available polymer additive, And (ii) in a second process step the cavity of the injection mould is enlarged and a gap is thereby generated, and (iii) in the third process step a reactive polyurethane raw material mixture comprising at least one polyisocyanate component, at least one polyfunctional H-active compound, and optionally at least one polyurethane additive and/or process auxiliary substance is injected into the gap resulting in this way between the thermoplastic component and the mould surface of the enlarged cavity, the polyurethane raw material mixture polymerizing completely in contact with the surface of the thermoplastic support to give a compact polyurethane layer or to give a polyurethane foam layer. And (iv) in a fourth process step the composite component is removed from the mould cavity. Preferably the process steps following one another directly. | 06-09-2011 |
20110213051 | Use Of Mixtures In The Preparation Of Impact-Modified Thermoplastic Compositions - The present invention relates to the use, in a compounding process for the preparation of pigmented impact-modified thermoplastic polymer compositions, of a mixture comprising
| 09-01-2011 |
20120100377 | STRESS CRACKING-RESISTANT AND LOW-WARPAGE TWO-COMPONENT MOLDED PARTS COMPRISING TALCUM - The invention relates to ductile and low-warpage, that is to say dimensionally stable, two-component molded parts which are stress cracking-resistant with respect to the influence of chemicals. | 04-26-2012 |