US 12,065,566 B2
Impact-resistant polymer composition
Jorgen Jacobus Hendricus Gerardus Kemps, Bergen op Zoom (NL); Priya Garg, Bergen op Zoom (NL); Franciscus Antoinet Maria Huijnen, Geleen (NL); and Wouter Van Den Berg, Geleen (NL)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL); and YPAREX B.V., Enschede (NL)
Appl. No. 17/059,625
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL); and Yparex B.V., Enschede (NL)
PCT Filed Jun. 3, 2019, PCT No. PCT/EP2019/064349
§ 371(c)(1), (2) Date Nov. 30, 2020,
PCT Pub. No. WO2019/233949, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 18175764 (EP), filed on Jun. 4, 2018.
Prior Publication US 2021/0261773 A1, Aug. 26, 2021
Int. Cl. C08L 77/02 (2006.01); C08K 7/14 (2006.01); C08L 23/08 (2006.01)
CPC C08L 77/02 (2013.01) [C08K 7/14 (2013.01); C08L 23/0815 (2013.01); C08L 23/0869 (2013.01); C08L 2203/30 (2013.01); C08L 2205/02 (2013.01); C08L 2205/03 (2013.01); C08L 2207/04 (2013.01)] 16 Claims
 
1. A composition consisting of:
a) 75-85 wt % of a polyamide,
b) 15-25 wt % of a polyethylene elastomer (POE) composition,
c) optionally reinforcing fillers, and
d) 0 to 10 wt % of an additive selected from the group consisting of nucleating agents, stabilisers; lubricants; flame-retardants; mould-release agents; flow improving agents; plasticizers; anti-static agents; and blowing agents,
wherein the amounts of a), b) and d) are with respect to the total composition,
wherein the total of a) and b) is at least 90 wt % with respect to the total composition,
wherein the POE composition consists of:
b1) 20-95 wt % of a non-functionalized polyethylene elastomer and
b2) 5-80 wt % of a functionalized polyethylene elastomer,
wherein the amounts of b1) and b2) are with respect to the POE composition,
wherein the functionalized polyethylene elastomer has a functional group derived from an unsaturated dicarboxylic anhydride or an unsaturated dicarboxylic acid or an ester thereof, and wherein the non-functionalized polyethylene elastomer has a density of 0.850-0.900 g/cm3,
wherein the composition has a Charpy impact strength according to ISO 179-1:2010 at 23° C. of at least 30 kJ/m2.