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公开(公告)号：WO2021032827A1
公开(公告)日：2021-02-25
申请号：PCT/EP2020/073309
申请日：2020-08-20
发明人： NIESSNER, Norbert , MICHELS, Gisbert , MICHAELIS DE VASCONCELLOS, Janna , MADHAV, Shridhar , GEVARIA, Kirit , BHAVSAR, Pratik , AHN, SangJun
摘要： A thermoplastic molding composition comprising (A) 15 to 45 wt.-% graft copolymer (A) obtained by emulsion polymerization of styrene and acrylonitrile in presence of an agglomerated butadiene rubber latex (A1) with D50 of 150 to 800 nm; (B) 40 to 75 wt.-% copolymer (B) of styrene and acrylonitrile having a weight ratio of 80:20 to 65:35 and Mw of 150,000 to 300,000 g/mol, (C) 2.0 to 5.0 wt.-% elastomeric block copolymer (C) made from 15 to 65 wt.-% diene, and 35 to 85% by weight vinylaromatic monomer; (D) 2.0 to 5.0 wt.-% titanium dioxide pigment D comprising at least 95 wt.-% titanium dioxide and 1.7 to 3.3 wt.-% alumina; and (E) 0 to 7.0 wt.-% of at least one additive/processing aid (E) different from (D); having a high chemical resistance, high color and thermal stability and low tendency to delamination. This can be used for sheet extrusion and thermoforming, in particular as inner liner for a cooling apparatus.
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公开(公告)号：WO2021239707A1
公开(公告)日：2021-12-02
申请号：PCT/EP2021/063853
申请日：2021-05-25
摘要： The invention relates to a thermoplastic molding composition comprising 5.0 to 57 wt.-% ABS graft copolymer (A); 30.5 to 80 wt.-% SAN copolymer (B) 1.5 to 9.5 wt.-% copolymer (C) with epoxy, maleic anhydride or maleic imide functions; 5 to 29 wt.-% of hollow glass microspheres (D); 6 to 12 wt.-% of glass fibers (E); 0 to 5 wt.-% additives and/or processing aids (F), having a low density and high strength, and a process for its preparation, shaped arti-cles thereof, and its use in the electronics sector.
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公开(公告)号：WO2018145970A1
公开(公告)日：2018-08-16
申请号：PCT/EP2018/052384
申请日：2018-01-31
摘要： The invention relates to a polymer composition (P), comprising at least one acrylonitrile-butadiene-styrenecopolymer (A) (ABS copolymer(A)), characterized in that the polymer composition (P) has a surface energy of > 38 dyne/cm. The invention further relates to a process for painting a surface of a polymer moulded article comprising the polymer composition (P), wherein no pre-treatment of the surface of the polymer moulded article, such as primer coating, is required prior to the application of the paint.
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公开(公告)号：WO2021122694A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/086352
申请日：2020-12-16
发明人： NIESSNER, Norbert , MICHELS, Gisbert , HONEKER, Roman , MADHAV, Shridhar , GEVARIA, Kirit , BHARADWAJ, Pankaj , SINGH, Prabhat
IPC分类号： C08F279/04 , C08L25/12 , C08L55/02 , C08F6/00 , C08F285/00 , C08F2/001 , C08F6/006
摘要： An emulsion polymerization process for preparation of ABS graft copolymer latex having reduced residual monomer content, wherein a grafting step c) comprises the steps: c1): feeding of 10 to 45 wt.-% of styrene and acrylonitrile in one portion to agglomerated butadiene rubber latex and addition of redox system initiator, then polymerization; c2): feeding remaining monomers in portions or continuously and further addition of redox system initiator; c3): addition of inorganic free radical initiator and continuation of polymerization, leads to ABS graft copolymers and thermoplastic molding compositions which can be used in the automotive industry.
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公开(公告)号：WO2019201784A1
公开(公告)日：2019-10-24
申请号：PCT/EP2019/059461
申请日：2019-04-12
发明人： NIESSNER, Norbert , MICHELS, Gisbert , COCHRAN, Thomas W. , MADHAV, Shridhar , GEVARIA, Kirit , MODI, Mukesh
摘要： ABS molding composition comprising: (a) 50 to 80 wt.-% SAN copolymer (a) (S/AN ratio 78:22 to 65:35, M w 80,000 to 250,000); (b) 8 to 25 wt.-% graft copolymer (b) consisting of 15 to 60 wt.-% graft sheath (b2) and 40 to 85 wt.-% graft substrate - an agglomerated butadiene rubber latex - (b1), obtained by emulsion polymerization of SAN in presence of agglomerated butadiene rubber latex (b1) (D 50 150 to 800 nm); and (c) 8 to 30 wt.-% SBC block copolymer (vinylarene 58 to 68 wt.-%) comprising diene/vinylarene tapered polymer blocks; exhibiting ultra-high flow melt with good mechanical properties, a process for their preparation and their use for the production of bulky and/or thin walled articles.
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公开(公告)号：WO2019201782A1
公开(公告)日：2019-10-24
申请号：PCT/EP2019/059452
申请日：2019-04-12
发明人： NIESSNER, Norbert , MICHELS, Gisbert , COCHRAN, Thomas W. , MADHAV, Shridhar , GEVARIA, Kirit , MODI, Mukesh
摘要： Thermoplastic molding composition comprising (A) 40 to 80 wt.-% SAN copolymer (S/AN-ratio 78:22 to 65:35, Mw 80,000 to 250,000 g/mol); (B) 20 to 60 wt.-% SBC block copolymer (monovinylarene 61 to 64 wt.-%) comprising conjugated diene/monovinylarene tapered polymer blocks; and (C) 0 to 5 wt.-% additives and/or processing aids (C); exhibiting ultra-high melt flow with good mechanical, thermal and optical properties, a process for its preparation and its use for the production of bulky and/or thin walled articles.
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公开(公告)号：WO2019158564A1
公开(公告)日：2019-08-22
申请号：PCT/EP2019/053514
申请日：2019-02-13
发明人： NIESSNER, Norbert , MICHELS, Gisbert , LEE, KwanHee , MADHAV, Shridhar , GEVARIA, Kirit , DEBATA, Nirmalendu
摘要： High heat resistant ABS molding compositions for use in the automotive sector, electronics, and household or healthcare sector comprising: (A) 15 to 35 wt.-% ABS graft copolymer (A); (B) 15 to 35 wt.-% a-methylstyrene/acrylonitrile copolymer (B) (weight ratio 95:5 to 50:50); (C) 20 to 40 wt.-% styrene/acrylonitrile copolymer (C) (weight ratio 95:5 to 50:50; M w 150,000 to 300,000); (D) 10 to 30 wt.-% random terpolymer (D) made from 13 to 27 wt.-% α, β ethylenically unsaturated cyclic anhydride, 60 to 74 wt.-% aromatic vinyl monomer, and 13 to 27 wt.-% maleimide monomer); (E) 0.1 to 5 wt.-%, of at least one elastomeric block copolymer (E) comprising a vinylaromatic monomer block S and an elastomeric random diene/vinylaromatic onomer block B/S; hard phase proportion is 1 to 40 vol.-% and the diene proportion is less than 50 wt.-%; and (F) 0 to 5 wt.-% of further additives and/or processing aids (F).
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公开(公告)号：WO2022268736A1
公开(公告)日：2022-12-29
申请号：PCT/EP2022/066758
申请日：2022-06-20
发明人： NIESSNER, Norbert , RUTHARD, Christian , MADHAV, Shridhar , GEVARIA, Kirit , AK, Manjula , ROHIT, Pankaj , MISHRA, Saurabh
IPC分类号： C08L25/12 , C08L51/04 , C08L23/08 , C08L2201/08 , C08L2205/025 , C08L2205/03 , C08L2205/035 , C08L23/0853
摘要： Weather resistant thermoplastic ASA compositions comprising (A): 20 to 80 wt.-% of a polymer mixture (A) consisting of: 35 to 65 wt.-% graft copolymer GR1 (D50 of 55 to 170 nm), composed of: 40 to 80 wt.-% cross-linked C1 to C8 alkyl acrylate graft base G11 and 20 to 60 wt.-% SAN-copolymer graft shell G12; and 65 to 35 wt.-% SAN copolymer S1 (MVR 50 to 70 ml/10 min); (B): 5 to 35 wt.-% polymer mixture (B) consisting of: 35 to 65 wt.-% graft copolymer GR2 (D50 of 410 to 1000 nm), composed of: 40 to 80 wt.-% cross-linked C1 to C8 alkyl acrylate graft base G21 and 20 to 60 wt.-% SAN-copolymer graft shell G22; and 65 to 35 wt.-% SAN copolymer S2 (MVR 11 to 25 ml/10 min); (C): 10 to 40 wt.-% of at least one SAN copolymer (C) (MVR 11 to 70 ml/10 min); (D): 1 to 15 wt.-% EVA copolymer (D) (VA > 25 wt.-%); are particularly useful e.g. in the automotive industry.
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公开(公告)号：WO2022194814A1
公开(公告)日：2022-09-22
申请号：PCT/EP2022/056606
申请日：2022-03-15
发明人： NIESSNER, Norbert , MICHELS, Gisbert , MADHAV, Shridhar , AK, Manjula , GEVARIA, Kirit , BHARADWAJ, Pankaj
摘要： ABS molding composition with an improved surface quality comprising (A) 15 to 44.975 wt.-% graft copolymer (A) - consisting of 15 to 60 wt.-% graft sheath (A2) and 40 to 85 wt.-% agglomerated butadiene rubber latex (A1) - obtained by emulsion polymerization of styrene and acrylonitrile in the presence of rubber latex (A1) (D50 of 150 to 800 nm), (B) 55 to 84.975 wt.-% copolymer (B) of styrene and acrylonitrile having a molar mass Mw of 85,000 to 190,000 g/mol; (C) 0.015 to 0.40 wt.-% vinylidene fluoride copolymer (C); and (D) 0.01 to 5 wt.-% further additive/processing aid (D) different from (C); can be used in painting or (electro)plating applications of thermoplastics.
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公开(公告)号：WO2019121647A1
公开(公告)日：2019-06-27
申请号：PCT/EP2018/085440
申请日：2018-12-18
发明人： NIESSNER, Norbert , MICHELS, Gisbert , WITTENBERG, Nils , AHN, SangJun , MADHAV, Shridhar , GEVARIA, Kirit , BHAVSAR, Pratik
CPC分类号： C08L25/12 , B60R2019/184 , C08L25/16 , C08L33/068 , C08L55/02 , C08L2205/025 , C08L2205/03 , C08L2205/035 , C08L33/12
摘要： ABS thermoplastic molding compositions for the preparation of blow molded articles in the automotive and household sector comprising (A) 30 to 40 wt.-% ABS graft rubber copolymer, (B) 25 to 35 wt.-% alpha-methylstyrene/acrylonitrile copolymer, (C) 30 to 40 wt.-% styrene/acrylonitrile copolymer, (D) 0.05 to 0.50 wt.-% homo- or copolymer comprising monomer structure units with a C 3 -C 6 -alkyleneoxide side chain having an epoxy terminal group or with a modified, functionalized C 3 -C 6 -alkyleneoxide side chain, and (E) 0 to 5 wt.-% further additives. Component (D) is preferably polyglycidylmethacrylate.
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