... .It could let the organic group with ability of bonding, the lipophilic group with long chain moleculeand ... polar group,which is agglutinate with the outside of mineral, engraft to the centric atom.So this ... filler, such as, the soft and hard products of PVCPEPP,Calcium carbonate, French chalk, white carbon black, ... oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Boric acid ester coupling agent