A molded article is formed of a thermoplastic or thermosetting resin and has two planes joining each other in a junction portion; at least one of the two planes has an opening portion or a thin wall portion in the vicinity of the junction portion in order to decrease warpage of the molded article.
申请公布号
US5576086(A)
申请公布日期
1996.11.19
申请号
US19940353259
申请日期
1994.12.02
申请人
MITSUBISHI GAS CHEMICAL COMPANY, INC.;ICHIKOH INDUSTRIES, LTD.