Acoustic barrier with enhanced damping performance
OwnerMark P. Allen, Ian D. Robertson +2inventors
InventorsMark P. Allen, Ian D. Robertson, Hailan Guo, Manoj Thota
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Abstract
Heterophasic thermoplastic compositions can include a polyolefin continuous phase comprising an ethylene/α-olefin interpolymer; and an acrylic discontinuous phase dispersed within the polyolefin continuous phase at a parts per hundred resin (pphr) of less than 20 pphr; wherein the composition has a tan delta of 0.11 or greater at 200 rad/s frequency. Methods may include preparing a heterophasic thermoplastic composition that include combining a polyolefin and acrylic resin to form a blend; and heating the blend to form the polyolefin continuous phase having the acrylic discontinuous phase dispersed therein.
Claims10
A heterophasic thermoplastic composition, comprising:
- a polyolefin continuous phase comprising an ethylene/α-olefin interpolymer;
- and
- an acrylic discontinuous phase dispersed within the polyolefin continuous phase at a parts per hundred parts resin (pphr) of less than 20 pphr;
- wherein the composition has a tan delta of 0.11 or greater at 200 rad/s frequency.
Dependencies are inferred from the claim text.