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US 6,555,643 B1Granted
Linear, isotactic polymers, process for preparing same, and use thereof
OwnerBernhard Riegerinventor
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Abstract
The invention refers to a linear, isotactic polymer which has a structure of one or several C2 to C20 olefins, of which the isotacticity due to a statistic distribution of stereoscopic errors in the polymer chain, is within the range of from 25 to 60% of [mmmm] pentad concentration, the polymer having a mean molecular weight Mw within the range of from 100,000 to 800,000 g/mol and a Tg of from −50 to 30° C.
Claims13
Linear, isotactic polymer which has:
- (a) a structure of one or several C2 to C20 olefins,
- (b) an isotacticity, due to a statistic distribution of stereoscopic errors in the polymer chain, within the range of from 25 to 60% of [mmmm] pentad concentration,
- (c) a mean weight value molecular weight (Mw) within the range of from 100,000 to 800,000 g/mol,
- (d) a Tg value of from −50 to +30° C.,
- (e) a [rmrm] pentad concentration amounting to a maximum of 2.5% of the entire pentad area, and
- (f) [rrrr] and [mrrr] pentad concentrations that are each greater than the concentration of the [rmrm] pentad.
3 more elements
Dependencies are inferred from the claim text.