US 12,486,367 B2
Reinforced polyolefin composition comprising recycled plastic material
Mahdi Abbasi, Linz (AT); Susanne Margarete Kahlen, Linz (AT); Hermann Braun, Linz (AT); Wolfgang Stockreiter, Linz (AT); and Michael Jerabek, Linz (AT)
Assigned to Borealis AG, Vienna (AT)
Appl. No. 17/927,391
Filed by Borealis AG, Vienna (AT)
PCT Filed May 25, 2021, PCT No. PCT/EP2021/063823
§ 371(c)(1), (2) Date Nov. 23, 2022,
PCT Pub. No. WO2021/239694, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 20176790 (EP), filed on May 27, 2020.
Prior Publication US 2023/0242717 A1, Aug. 3, 2023
Int. Cl. C08J 5/04 (2006.01); B29B 9/14 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01); C08K 3/40 (2006.01); C08K 7/14 (2006.01); B29K 23/00 (2006.01); B29K 105/08 (2006.01)
CPC C08J 5/043 (2013.01) [B29B 9/14 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 3/40 (2013.01); C08K 7/14 (2013.01); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29K 2105/08 (2013.01); C08J 2323/06 (2013.01); C08J 2323/12 (2013.01); C08J 2325/06 (2013.01); C08J 2377/02 (2013.01); C08K 2201/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polyolefin composition comprising
a) 7-82.5 wt % of a blend of recycled plastic material comprising polypropylene and polyethylene, which is recovered from a waste plastic material derived from post-consumer and/or post-industrial waste;
b) 10-40 wt % of glass fibres;
c) 5-30 wt % talc;
d) 0.5-3 wt % of at least one coupling agent; and
e) 2-20 wt % of at least one impact modifier,
wherein the polyolefin composition is optionally free of any virgin polyethylene and
wherein the polyolefin composition has
a tensile modulus of at least 4 GPa, and
an impact strength of at least 10 kJ/m2.