Back to results
US 9,040,616 B2Granted
Bleed resistant, oil-extended olefin block copolymer composition with microcrystalline wax
AssigneeDow Global Technologies LLC
InventorsRobert T. Johnston, Ashish Batra, Wenbin Liang
Life of this patent
Estimating the term…
Abstract
Disclosed are oil-extended olefin block copolymer compositions with microcrystalline wax. The microcrystalline wax reduces oil-bleed while maintaining composition softness.
Claims7
An oil-extended olefin block copolymer composition comprising:
- from 30 wt % to 40 wt % of a polymer, wherein the polymer consists of an ethylene/α-olefin multi-block copolymer as the only polymeric component of the composition;
- from 45 wt % to 55 wt % of an oil;
- from 10 wt % to 30 wt % of a microcrystalline wax;
- and
- the composition is halogen-free and has a Shore A hardness from 5 to 50 and a normalized oil bleed index (NOBI) from 1 to 60 after 3 weeks at 23° C.
2 more elements
Dependencies are inferred from the claim text.