US 11,939,470 B2
Sinter powder (SP) comprising a first polyamide component (PA1) and a second polyamide component (PA2), where the melting point of the second polyamide component (PA2) is higher than the melting point of the first polyamide component (PA1)
Claus Gabriel, Ludwigshafen am Rhein (DE); Thomas Meier, Ludwigshafen am Rhein (DE); Clemens Gottke, Ludwigshafen am Rhein (DE); and Angelika Zepp, Ludwigshafen am Rhein (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/280,715
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Sep. 25, 2019, PCT No. PCT/EP2019/075840
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/064825, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 18196873 (EP), filed on Sep. 26, 2018.
Prior Publication US 2022/0010133 A1, Jan. 13, 2022
Int. Cl. C08L 77/06 (2006.01); B29C 64/118 (2017.01); B29C 64/153 (2017.01); B29K 77/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C08L 77/02 (2006.01); C09D 5/03 (2006.01); C09D 177/02 (2006.01); C09D 177/06 (2006.01)
CPC C08L 77/06 (2013.01) [B29C 64/118 (2017.08); B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08L 77/02 (2013.01); C09D 5/031 (2013.01); C09D 177/02 (2013.01); C09D 177/06 (2013.01); B29K 2077/00 (2013.01); C08L 2205/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A sinter powder (SP) comprising the following components:
(A) at least one first polyamide component (PA1) comprising, based on the total weight of the first polyamide component (PA1), at least 50% by weight of a first aliphatic polyamide (aPA1), where the first polyamide component (PA1) has a first melting point (TM1) and where the first aliphatic polyamide (aPA1) has been formed from repeat units having a first ratio (V1) per repeat unit of CH2 groups to NHCO groups in the range from 4 to 6,
(B) at least one second polyamide component (PA2) comprising, based on the total weight of the second polyamide component (PA2), at least 50% by weight of a second aliphatic polyamide (aPA2), where the second polyamide component (PA2) has a second melting point (TM2) and where the second aliphatic polyamide (aPA2) has been formed from repeat units having a second ratio (V2) per repeat unit of CH2 groups to NHCO groups in the range from 4 to 6,
wherein the second melting point (TM2) is higher than the first melting point (TM1) and where the quotient (Q) of the numerical value of the second ratio (V2) divided by the numerical value of the first ratio (B1) is in the range of 0.6 to 1.5.