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US 2017/0321053 A1Published application
Bleed Resistant, Oil-Extended Olefin Block Copolymer Composition with Surface-Active Agent
AssigneeDow Global Technologies LLC
InventorsRobert T. Johnston, Wenbin Liang, Ashish Batra
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Abstract
The present disclosure provides an oil-extended olefin block copolymer composition. The oil-extended olefin block copolymer composition includes an olefin block copolymer, an oil, and a surface-active agent and may optionally include an olefin-based polymer. The oil- extended olefin block copolymer composition advantageously exhibits reduced, or no, oil-bleed.
Claims15
An oil-extended olefin block copolymer composition comprising:
- an olefin block copolymer that is an ethylene/α-olefin multi-block copolymer;
- an oil;
- and
- a surface-active agent.
1 more element
An oil-extended olefin block copolymer composition comprising:
- an olefin block copolymer that is an ethylene/α-olefin multi-block copolymer;
- from 70 phr to 250 phr of an oil;
- from 0.05 phr to 5 phr of a surface-active agent;
- and
- the composition has a Shore A hardness from 5 to 50 and a normalized oil-bleed index of less than or equal to 30 after three weeks at 23° C.
2 more elements
An oil-extended olefin block copolymer composition comprising:
- an olefin block copolymer that is an ethylene/α-olefin multi-block copolymer;
- an olefin-based polymer;
- an oil;
- and
- a surface-active agent.
2 more elements
Dependencies are inferred from the claim text.