Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1997-05-21
1999-11-23
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528483, 528491, 528494, 528495, 528496, 528502R, 528502F, 528503, C08F 602
Patent
active
059902728
ABSTRACT:
A method of treating polyolefin comprises (i) a ligand-decomposition step of contacting polyolefin, which is obtained by the use of a transition metal compound containing ligands having cyclopentadienyl skeleton, with a ligand decomposer, such as water, oxygen, alcohol, alkylene oxide or peroxide, to decompose the ligands contained in the polyolefin, and (ii) a ligand-removal step of heating the polyolefin contacted with the ligand decomposer to remove the decomposed ligands from the polyolefin. According to this method, the residual ligands having cyclopentadienyl skeleton, which are contained in the polyolefin produced by the use of a transition metal compound containing ligands having cyclopentadienyl skeleton, are decomposed and removed from the polyolefin, whereby polyolefin diminished in odor development in the molding process can be obtained.
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Abstract of Japan Laid-Open Pat. Publ. No. 9-52918 (Feb. 25, 1997).
Kojima Teruhisa
Nishikawa Hiroshi
Ohtani Satoru
Yamamoto Ryoichi
Mitsui Chemicals Inc.
Teskin Fred
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