抄録
Combination of compounding and an additive of the resin called hybrid processing gives us resin which requires the high pressure and high temperature environment of the oil well tubular market. When performance confirmation of this hybrid processing is tested chemically physically, many cost and time should be required. The performance evaluation method which settled this problem is in the density measurement which aimed at a change's of physical properties being revealed by the undiluted solution density and density measurement after indurating. When analyzing a change in 4 digits of density because indurating volume shrinkage of general resin is about 3 %, the purpose performance evaluation precision is obtained.
