Claims
- 1. An oil composition containing a hydrogenated radial polymer comprising a plurality of arms, said arms being of two distinctly different peak molecular weights as measured by gel permeation chromatography with a low angle laser light scattering detector, wherein said arms are homopolymers of polyisoprene, wherein the peak molecular weight of the longer polymer arms is within the range from about 40,000 to about 200,000 and the peak molecular weight of at least a first set of lower molecular weight arms is within the range from about 5,000 to about 80,000, and wherein the weight ratio of said at least two distinctly different molecular weight arms is within the range from about 2.0:1 to about 3.0:1.
- 2. The oil composition of claim 1 wherein the peak molecular weight of the longer polymer arms is within the range from about 60,000 to about 130,000 and the peak molecular weight of the first set of lower molecular weight arms is within the range from about 30,000 to about 80,000.
Parent Case Info
This is a continuation of application Ser. No. 07/938,558, filed Aug. 28, 1992, now abandoned, which is a continuation of applications Ser. No. 07/509,528, filed Apr. 16, 1990, now abandoned.
US Referenced Citations (10)
Non-Patent Literature Citations (1)
Entry |
Anionic Synthesis of Functionalized Heteroarm Star Polymers, by R. P. Quirk, L. E. Schock and B. Lee, Inst. of Poly. Sci., Akron. |
Continuations (2)
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Number |
Date |
Country |
Parent |
938558 |
Aug 1992 |
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Parent |
509528 |
Apr 1990 |
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