公开(公告)号：US5800910A

公开(公告)日：1998-09-01

申请号：US705109

申请日：1996-08-28

申请人： Stefan Harke ,  Stefanie Grathwohl ,  Rudolf Paternoster ,  Thomas Wilhelm ,  Klaus Hock ,  Werner Fenzl

发明人： Stefan Harke ,  Stefanie Grathwohl ,  Rudolf Paternoster ,  Thomas Wilhelm ,  Klaus Hock ,  Werner Fenzl

IPC分类号： B29B15/10 ,  B29C70/64 ,  C08K3/00 ,  B32B5/16

CPC分类号： C08K3/0033 ,  B29C70/64 ,  B29L2031/77 ,  Y10T428/24942 ,  Y10T428/25

摘要： To improve the resistance to scratching of plastic molded articles comprising a polymer matrix filled with inorganic fillers, the filler content being 50 to 90% by weight in relation to the filled matrix, it is suggested that the filler comprise two filler fractions (a) and (b), wherein the filler fraction (a) has a particle size distribution with 98% by weight of the particles having a particle size .ltoreq.150 .mu.m and is distributed essentially uniformly in the polymer matrix, and wherein the filler fraction (b) comprises particles having a particle size of approximately 300 .mu.m to approximately 3000 .mu.m, wherein the proportion of the filler fraction (b) is approximately 1 to 35% by weight of the total filler content, and wherein the proportion of the filler fraction (b) in an outer surface layer of the molded article is enriched to at least 30% by weight in relation to the total mass of the filled matrix.

摘要翻译： 为了提高包含填充有无机填料的聚合物基质的塑料模塑制品的耐擦伤性，填充剂的含量相对于填充的基质为50至90重量％，建议填料包含两个填料部分（a）和 （b）中，其中所述填料部分（a）具有颗粒尺寸分布为98重量％的颗粒，其粒径基本上均匀地分布在聚合物基质中，并且其中填料部分 b）包含粒径为约300μm至约3000μm的颗粒，其中填料部分（b）的比例为总填料含量的约1至35重量％，并且其中填料的比例 相对于填充基质的总质量，成型体的外表层中的馏分（b）富集至少30重量％。

公开(公告)号：US5710204A

公开(公告)日：1998-01-20

申请号：US718212

申请日：1996-09-20

申请人： Stefan Harke ,  Stefanie Grathwohl ,  Rudolf Paternoster ,  Thomas Wilhelm ,  Klaus Hock ,  Werner Fenzl

发明人： Stefan Harke ,  Stefanie Grathwohl ,  Rudolf Paternoster ,  Thomas Wilhelm ,  Klaus Hock ,  Werner Fenzl

IPC分类号： C08F2/44 ,  C08F20/12 ,  C08G64/18

CPC分类号： C08G64/18 ,  C08F20/12

摘要： In a castable, curable composition for producing plastic molded articles, comprising a sirup containing a proportion of acrylic acid monomer and/or derivatives thereof, in order to achieve an improved boiling resistance of the plastic molded articles produced from the composition, it is proposed that a proportion of a further component of the formula (I) ##STR1## which contains an ethylenically unsaturated group of the formula (II) --R.sub.5 --R.sub.6 (II) and/or contains a group of the formula (III) ##STR2## be added. The sirup may also optionally contain a proportion of a prepolymer, in particular PMMA, and, in addition, a particulate, inorganic filler in a proportion of 50 to 90% by weight in relation to the total composition, pigments and a radical initiator system are contained in the sirup. The viscosity of the total composition is .ltoreq.100 Pa.multidot.s, and the ratio of the sum of the weight content of the acrylic acid monomer and its derivatives to the sum of the weight content of the further component and the weight content of PMMA is 99:1 to 30:70, and, in the presence of PMMA, the ratio of the weight content of the further component to the weight content of the PMMA is at least 5:95.

摘要翻译： 在用于生产塑料模塑制品的可浇注的可固化组合物中，包含含有一部分丙烯酸单体和/或其衍生物的浆料，为了获得由该组合物制备的塑料模制品的改进的耐沸腾性，建议 含有式（II）-R5-R6（II）的烯键式不饱和基团和/或含有式（III）的基团的式（I）的另一组分的一部分（I） 含有一定比例的预聚物，特别是PMMA，另外还包含相对于总组合物为50〜90重量％的颗粒状无机填料，颜料和自由基引发剂体系包含在聚合物中。 总组合物的粘度为100个百分含量，丙烯酸单体及其衍生物的重量含量之和与其它组分的重量含量之和与PMMA的重量含量之和为99 ：1〜30:70，并且在PMMA存在下，其他组分的重量含量与PMMA的重量含量之比至少为5:95。