-
公开(公告)号:US4067827A
公开(公告)日:1978-01-10
申请号:US743434
申请日:1976-11-19
申请人: Yoshinari Takano , Keiji Fujita , Yasuo Teraoka , Masahiro Nishida , Ryoichi Fujitani , Yaichi Kuratomo
发明人: Yoshinari Takano , Keiji Fujita , Yasuo Teraoka , Masahiro Nishida , Ryoichi Fujitani , Yaichi Kuratomo
CPC分类号: C08J9/20 , C08J9/0023 , C08J9/0061 , C08J2333/12
摘要: A process for improving the production of polymethyl methacrylate beads or copolymeric methyl methacrylate and vinyl beads wherein the monomer is polymerized in the presence of a foaming agent and foaming agent stabilizer and within an atmosphere of inert gas, such as nitrogen, at a pressure of at least 4 kg/cm.sup.2.G. The polymerizatin is pressurized after the reaction has proceeded to a conversion ratio of from 30 to 70%. The process essentially eliminates aggregation and "sticking together" of the beads produced thereby.
摘要翻译: 一种用于改进聚甲基丙烯酸甲酯珠或共聚甲基丙烯酸甲酯和乙烯珠的生产方法,其中单体在发泡剂和发泡剂稳定剂的存在下在惰性气体如氮气的气氛中在压力为 至少4公斤/厘米2。 在反应进行到30至70%的转化率之后,聚合物加压。 该方法基本上消除了由此产生的珠的聚集和“粘在一起”。
-
公开(公告)号:US6143840A
公开(公告)日:2000-11-07
申请号:US380497
申请日:1999-09-03
IPC分类号: C08G63/16 , C08L67/00 , C09D167/00 , C08F20/00
CPC分类号: C08L67/00 , C08G63/16 , C09D167/00
摘要: The present invention provides a resin composition containing a polyester resin processing, within its molecular structure, a structural unit represented by the following formula (I), and an amino resin: ##STR1## [wherein, R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom or lower alkyl, with the proviso that R.sup.1 and R.sup.2 do not simultaneously represent hydrogen atoms]. In addition, the present invention provides a cured resin obtained by means of hardening said resin composition, and a paint containing said resin composition. The aforementioned resin composition provides a cured material that exhibits excellent resistance to hydrolysis, resistance to alkali, and resistance to cissing, and thus is suitable for a paint and the like.
摘要翻译: PCT No.PCT / JP98 / 01060 Sec。 371日期1999年9月3日 102(e)1999年9月3日PCT PCT 1998年3月13日PCT公布。 出版物WO98 / 41578 日期:1998年9月24日本发明提供一种含有聚酯树脂加工的树脂组合物,在其分子结构内具有由下式(I)表示的结构单元和氨基树脂:[其中,R 1和R 2相同或 不同且各自表示氢原子或低级烷基,条件是R1和R2不同时表示氢原子]。 此外,本发明提供通过硬化所述树脂组合物获得的固化树脂和含有所述树脂组合物的涂料。 上述树脂组合物提供了表现出优异的耐水解性,耐碱性和抗裂性的固化材料,因此适用于涂料等。
-