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 |
20090118394 | PROCESS FOR THE PRODUCTION OF IMPACT-MODIFIED FILLED POLYCARBONATE COMPOSITIONS - The present invention relates to a process for the production of impact-modified filled polycarbonate compositions and molding compositions. A process of the present invention involves: (i) mixing the CNT (component C) with rubber-containing vinyl copolymer (component B) and/or rubber-free vinyl copolymer (component D) on a twin screw extruder, to obtain a CNT masterbatch, (ii) mixing the CNT masterbatch with polycarbonate (component A) and optionally with Component B and/or Component D and optionally with an additive on a twin screw extruder. A polycarbonate composition prepared according to the present invention does not experience degradation of the molecular weight of the polycarbonate during compounding a compared to processes known in the art. | 05-07-2009 |
20090239991 | IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS HAVING A GOOD COMBINATION OF NATURAL COLOR, HYDROLYTIC STABILITY AND MELT STABILITY - The present invention relates to polycarbonate compositions comprising
| 09-24-2009 |
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 |
20090292059 | POLYCARBONATE BLENDS HAVING LOW-TEMPERATURE IMPACT STRENGTH - The present invention relates to a polycarbonate composition comprising polyalkyl(alkyl)acrylate having a specific molecular weight and an impact modifier, as well as to moulded bodies obtainable from these compositions. Compositions according to the present invention exhibit superior properties, in particular with respect of low-temperature strength and melt flowability. | 11-26-2009 |
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 |
20100144938 | IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS WHICH HAVE AN EMULSION GRAFT POLYMER PRECIPITATED UNDER BASIC CONDITIONS AND COMPRISE ACIDIC PHOSPHORUS COMPOUNDS - The disclosure relates to impact-modified polycarbonate compositions and moulding compositions comprising
| 06-10-2010 |
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 |
20100190913 | POLYCARBONATE MOLDING COMPOSITIONS - An impact modified thermoplastic molding composition comprising aromatic polycarbonate and/or polyester carbonate and a rubber-modified graft polymer prepared by the bulk, solution or bulk-suspension polymerization process is disclosed. The composition that is characterized by its low content of lithium ions and its content of sodium and/or potassium ions exceeding a minimum level features improved hydrolytic resistance. | 07-29-2010 |
20100210789 | Compounding method for producing polymer compositions with a reduced content of volatile organic compounds - The present invention relates to a compounding method for producing impact-modified thermoplastic compositions with a low content of volatile organic compounds (hereinafter VOCs), wherein relatively inexpensive polymer raw materials with a comparatively elevated initial VOC content may be used, resulting in lowered production costs for producing such VOC-reduced polymer compositions. | 08-19-2010 |
20100249290 | FLAME-PROTECTED IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS - The present invention relates to flame-protected impact-modified polycarbonate compositions, wherein the compositions are free of rubber-free polyalkyl (alkyl)acrylate. The present invention further relates to the use of the polycarbonate compositions in the production of moulded bodies, and to the moulded bodies themselves. | 09-30-2010 |
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 |
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 |
20110159292 | COMPOSITE COMPONENTS WITH IMPROVED ADHESION OF POLYCARBONATE/POLYESTER COMPOSITIONS AND POLYURETHANE - The present invention relates to a composite component comprising i) a support made of a thermoplastic composition comprising A) at least one polymer selected from the group consisting of aromatic polycarbonates, aromatic polyester carbonates, aromatic polyesters, and mixtures thereof, in an amount of from 20.0 to 85.0 parts by wt., based on the sum of components A and B; B) at least one rubber-modified vinyl (co)polymer in an amount of from 15.0 to 80.0 parts by wt., based on the sum of components A and B, and with a rubber content [R | 06-30-2011 |
20110171459 | TWO-COMPONENT MOULDING PARTS WHICH ARE RESISTANT TO STRESS CRACKING AND WARPING, CONTAINING A PLATELET-LIKE OR FLAKED INORGANIC FILLER WITH THE EXCEPTION OF TALCUM - The invention relates to ductile two-component moulding parts which are resistant to stress cracking and warping under the influence of chemicals, i.e. dimensionally stable two-component moulding parts. | 07-14-2011 |
20110184103 | TWO-COMPONENT MOULDING PARTS WHICH ARE RESISTANT TO STRESS CRACKING AND WARPING, CONTAINING AN ISOTROPIC FILLER - The invention relates to ductile two-component moulding parts which are resistant to stress cracking and warping under the influence of chemicals, i.e. dimensionally stable two-component moulding parts. | 07-28-2011 |
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 |
20120165442 | ANTISTATIC POLYCARBONATE MOULDING COMPOSITIONS - Polymer compositions containing
| 06-28-2012 |
20120279559 | SOLAR MODULES HAVING A POLYCARBONATE BLEND FILM AS THE REAR FACE FILM - The present invention relates to solar modules comprising polycarbonate blend films as rear face films for protection against weathering and mechanical damage. | 11-08-2012 |
20120302694 | 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. | 11-29-2012 |
20130018137 | PROCESS FOR IMPROVING CARBON BLACK DISPERSIONAANM SEIDEL; AndreasAACI DormagenAACO DEAAGP SEIDEL; Andreas Dormagen DEAANM THIEM; Hans-JuergenAACI DormagenAACO DEAAGP THIEM; Hans-Juergen Dormagen DEAANM RUDOLF; ReinerAACI LagenfeldAACO DEAAGP RUDOLF; Reiner Lagenfeld DEAANM REICHENAUER; JoergAACI KrefeldAACO DEAAGP REICHENAUER; Joerg Krefeld DEAANM ECKEL; ThomasAACI DormagenAACO DEAAGP ECKEL; Thomas Dormagen DE - A masterbatch comprising pigment and demoulding agent is provided. The demoulding agent is selected from the group comprising low molecular weight polyolefin oils, low molecular weight polyolefin waxes, montan waxes and aliphatic or aromatic carboxylic acid esters of fatty acids and/or fatty alcohols, wherein the pigment content of the masterbatch is from 3 to 70 wt. %, based on the total weight of the masterbatch. The masterbatch is suitable for preparation of a polymer composition having improved pigment dispersion. | 01-17-2013 |
20130116367 | STABILISED POLYCARBONATE COMPOSITIONS WITH BLENDS OF SILICA AND AN INORGANIC ACID - The present invention relates to polycarbonate compositions having improved processing stability, increased heat stability and a good natural colour, and to their preparation and use, wherein the polycarbonate compositions contain an adsorber or absorber and an acid. | 05-09-2013 |
20130196130 | POLYMER COMPOSITIONS WITH IMPROVED ADHESION - Polymer compositions with improved lacquer adhesion comprising
| 08-01-2013 |
20130253092 | GLASS FIBER REINFORCED POLYCARBONATE MOLDING COMPOSITIONS - The invention relates to glass fiber reinforced polycarbonate compositions and molding compositions of the present investor and distinguished by high rigidity, high flowabillty, 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 shaded articles and to shaped articles comprising the compositions according to the invention. | 09-26-2013 |
20130253114 | POLYCARBONATE MOLDING COMPOSTIONS - A stabilized thermoplastic molding composition is disclosed. The composition contains A) aromatic polycarbonate and/or polyester carbonate, B) a rubber-modified graft polymer or its mixture with a rubber-free (co)polymer and C) a Bronsted acid compound. The inventive composition is characterized in its improved stability under processing conditions. | 09-26-2013 |
20130267635 | IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS FOR SIMPLIFIED PRODUCTION OF COMPONENTS OF LOW TEMPERATURE TOUGHNESS HAVING HIGH GLOSS AND MATT COMPONENT SECTIONS - The present invention relates to impact-modified polycarbonate moulding compositions, the use thereof for producing shaped bodies and mouldings, as well as shaped bodies and moulding produced therefrom themselves. Compositions of the present invention comprise mixtures of graft polymers prepared in the emulsion polymerization process and in the bulk, solution and/or suspension polymerization process having a defined grafted particle size distribution. Compositions of the present invention, on the one hand are suitable for producing, over a wide processing window, (i.e. also at high processing temperatures), non-lacquered components having a high gloss surface, and on the other hand, are also capable of precise imaging of fine-grained or surface-etched mould surfaces. A result of this point is that components of the present invention are capable of having both high gloss and deep matte component sections that can be realized in a mould having different surface textures in a single injection moulding step without further after-treatment of the surface. The moulding compositions have a high heat distortion temperature and ductility at low temperatures and an excellent resistance to stress cracking under the influence of media—which is particularly important with respect to non-lacquered components. | 10-10-2013 |
20130281567 | PROCESS FOR THE PREPARATION OF ABS COMPOSITIONS HAVING AN IMPROVED SURFACE AFTER STORAGE UNDER WARM MOIST CONDITIONS - The present invention relates to a process for the preparation of compositions comprising vinyl aromatic copolymers prepared by the emulsion polymerisation process and having salt inclusions resulting from their preparation, which compositions are distinguished by an improved surface quality after storage under warm moist conditions and in that respect are suitable for the production of moulded bodies having a class A surface. | 10-24-2013 |
20130281595 | ABS COMPOSITIONS WITH IMPROVED SURFACE AFTER HEAT-MOISTURE STORAGE - Described herein are polymer compositions comprising
| 10-24-2013 |
20130289177 | PC/ABS COMPOSITIONS HAVING A GOOD RESISTANCE TO HEAT AND CHEMICALS - The present invention relates to moulding compositions of polycarbonates and graft polymers and optionally further additives and components, which have, in addition to a high resistance to chemicals, a good resistance to heat, in particular a low tendency towards yellowing and a low tendency towards degradation when exposed to heat. | 10-31-2013 |
20130289192 | PC/ABS COMPOSITIONS THAT ARE STABLE TO PROCESSING - The present invention relates to moulding compositions comprising polycarbonate and acrylonitrile-butadiene-styrene polymer (ABS) as well as optionally further additives and components, which moulding compositions are distinguished by high thermal processing stability in respect of gloss level, polycarbonate degradation and content of free bisphenol A and exhibit improved stress cracking resistance. | 10-31-2013 |
20140239532 | PROCESS FOR THE PRODUCTION OF POLYURETHANE COMPOSITE COMPONENTS - A composite and 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. | 08-28-2014 |
20140275339 | METHOD FOR THE PRODUCTION AND STABILIZATION OF IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS USING DILUTED SOLUTIONS OF ACIDIC COMPOUNDS - The present invention relates to a process for the preparation of stabilised impact-modified polycarbonate compositions using dilute aqueous acidic solutions, and to the compositions so prepared themselves. | 09-18-2014 |
20140295160 | MULTI-LAYER BODIES MADE OF POLYCARBONATE WITH A DEEP GLOSS EFFECT - Multi-layer bodies comprising: 1) a base layer comprising at least one thermoplastic; nanoscale carbon black in an amount of from 0.05 to 0.15 wt. %; a demoulding agent based on a fatty acid ester in a concentration of from 0.1 to 0.5 wt. %, 2) at least on one side of the base layer a scratch-resistant coating based on polysiloxane having a thickness of from 2 to 15 μm, comprising at least one UV absorber, wherein the sum of the values of the above-mentioned components of the base layer is 100 wt. %. | 10-02-2014 |
20150065623 | EMULSION POLYMER CONTAINING COMPOUNDS WITH IMPROVED SURFACE AFTER STORAGE UNDER WARM AND HUMID STORAGE - The invention relates to polymer compounds containing A) 0 to 98 parts by weight, based on the sum of A and B, of a thermoplastic polymer, or a mixture of a plurality of thermoplastic polymers differing from B, and B) 2 to I 00 parts by weight, based on the sum of A and B, of B I) at least one graft polymer produced by an emulsion polymerisation process, B2) optionally at least one graft polymer produced in a mass, suspension or solution polymerisation process, B3) optionally at least one rubber-free vinyl (co)polymer and (C) 0 to 30 parts by weight of at least one commercially available polymer additive, wherein the total of parts by weight A and B is 100. | 03-05-2015 |