(METH)ACRYLIC SYRUP, PROCESS FOR PREPARING THE SAME, AND PROCESS FOR PREPARING MOLDING MATERIAL CONTAINING (METH)ACRYLIC SYRUP
申请人:NIPPON SHOKUBAI CO., LTD.
公开号:EP0796873A1
公开(公告)日:1997-09-24
The present invention provides (meth)acryl syrup which shows excellent storage stability as a molding material, and also provides a method of manufacturing the (meth)acryl syrup in a shorter period of time compared with the conventional method, and a molding material which permits a molded article having excellent heat-resistance, solvent-resistance, weathering resistance, and water-resistance, etc., to be manufactured. The (meth)acryl syrup is manufactured, for example, by polymerizing a monomer component including (meth)acrylic ester and a vinyl monomer having a carboxyl group in a presence of a thiol compound, and subsequently processing the reaction mixture with maleic anhydride and a basic compound. The molding material includes the (meth)acryl syrup, and may also include a thickening agent, derivatives of succinic acid, a reinforcing material, etc.
本发明提供了(甲基)丙烯酸糖浆,它作为模塑材料具有优异的储存稳定性,还提供了一种与传统方法相比可以在更短时间内制造(甲基)丙烯酸糖浆的方法,以及一种可以制造出具有优异耐热性、耐溶剂性、耐候性和耐水性等特性的模塑制品的模塑材料。例如,(甲基)丙烯酸糖浆的制造方法是:在硫醇化合物存在的情况下,聚合单体成分,包括(甲基)丙烯酸酯和具有羧基的乙烯基单体,然后用马来酸酐和碱性化合物处理反应混合物。成型材料包括(甲基)丙烯酸糖浆,还可以包括增稠剂、琥珀酸衍生物、增强材料等。