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    • 9. 发明授权
    • Castable, curable composition for producing plastic molded articles
    • 用于生产塑料模塑制品的可浇铸的可固化组合物
    • US5710204A
    • 1998-01-20
    • US718212
    • 1996-09-20
    • Stefan HarkeStefanie GrathwohlRudolf PaternosterThomas WilhelmKlaus HockWerner Fenzl
    • Stefan HarkeStefanie GrathwohlRudolf PaternosterThomas WilhelmKlaus HockWerner Fenzl
    • C08F2/44C08F20/12C08G64/18
    • C08G64/18C08F20/12
    • 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.
    • 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。