Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1992-09-02
1994-01-11
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526348, 5263481, 5263482, 5263483, 5263484, 5263486, 5263487, C08F 1004, C08F21002, C08F21014
Patent
active
052782727
ABSTRACT:
Elastic substantially linear olefin polymers are disclosed which have very good processability, including processing indices (PI's) less than or equal to 70 percent of those of a comparative linear olefin polymer and a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a traditional linear olefin polymer at about the same I.sub.2 and M.sub.w /M.sub.n. The novel polymers have higher low/zero shear viscosity and lower high shear viscosity than comparative linear olefin polymers.
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Derwent 90-239017/31.
Knight George W.
Lai Shih-Yaw
Stevens James C.
Wilson John R.
Krupp Stephen P.
Schofer Joseph L.
The Dow Chemical Company
White L. Wayne
Wu David
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