发明名称 |
Process for forming hard shaped molded article of a cross-linked liquid polybutadiene or polyisoprene resin and a butadiene or isoprene containing solid polymer and resulting articles |
摘要 |
A forming process for producing a hard shaped molded article that includes subjecting a moldable thermosetting composition to a high temperature cure condition at a temperature greater than about 250 DEG C. and less than the decomposition temperature of the composition to form a crosslinked polymeric network. In particular, the invention features a forming process for producing a hard shaped molded article that includes the steps of (a) providing a moldable thermosetting composition that includes 1) a polybutadiene or polyisoprene resin which is a liquid at room temperature and which has a molecular weight less than 5,000 and a large number of pendent vinyl groups and 2) a solid butadiene- or isoprene-containing polymer (e.g, a thermoplastic elastomer); (b) forming the composition into a shape; and (c) curing the composition to produce the article including subjecting the composition to a high temperature cure condition at a temperature greater than about 250 DEG C. and less than the decomposition temperature of the composition.
|
申请公布号 |
US5223568(A) |
申请公布日期 |
1993.06.29 |
申请号 |
US19890349595 |
申请日期 |
1989.05.09 |
申请人 |
ROGERS CORPORATION |
发明人 |
LANDI, VINCENT R.;MERSEREAU, J. MARK;ROBBINS, WALTER A. |
分类号 |
C08L9/00;C08L53/00;H05K1/03 |
主分类号 |
C08L9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|