公开(公告)号：US20250011575A1

公开(公告)日：2025-01-09

申请号：US18707331

申请日：2022-09-15

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Karel WILSENS ,  Rajesh CHITTA ,  Luke HERINX ,  Kankan BHAUMIK

IPC: C08K5/526 ,  C08J3/20 ,  C08K5/098 ,  C08L23/06

Abstract: a method for stabilising a material composition containing polyethylene includes: i) providing a material composition containing polyethylene; ii) determining the quantity of vinyl unsaturations in the polyethylene; iii) determining the quantity of secondary antioxidant in the material composition; iv) adding a quantity of secondary antioxidant so that the quantity of secondary antioxidant in the polyethylene is as required for a polyethylene having a quantity of vinyl unsaturations as determined under ii) to obtain a modified material composition. The method allows for obtaining a modified material composition that can be used in the production of articles via thermal shaping processes, such as extrusion or injection moulding processes, without excessive increase of long chain braches as a consequence of the shaping process.

公开(公告)号：US20250066592A1

公开(公告)日：2025-02-27

申请号：US18718832

申请日：2022-12-02

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Kankan BHAUMIK ,  Karel WILSENS ,  Ganesh KANNAN

IPC: C08L23/06 ,  C08K5/053 ,  C08L23/08

Abstract: A polyethylene composition includes at least one of (a) a first ethylene-based polymer and (b) a second ethylene-based polymer; and (c) ≥100 and ≤5000 ppm, preferably ≥500 and ≤2500 ppm, of 2,2-bis(hydroxymethyl)-1,2-propanediol, with regard to the total weight of the polyethylene composition. Such composition allows for providing a high oxidation induction temperature in combination with suppressed occurrence of yellowing of a polyethylene, in particular where a post-consumer recycle polyethylene is used in the composition.

公开(公告)号：US20250011572A1

公开(公告)日：2025-01-09

申请号：US18711927

申请日：2022-11-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Niclasina Siberta Johanna Alberdina GERRITS ,  Bernardus Aldegonda Josephus RAVEN ,  Karel WILSENS ,  Sarah MIERLOO VAN

IPC: C08K5/1545 ,  B32B27/08 ,  B32B27/10 ,  B32B27/18 ,  B32B27/28 ,  B32B27/32 ,  B32B37/18

Abstract: The present invention relates to a composition comprising: a) a polyethylene having a density of ≥940 and ≤970 kg/m3 as determined in accordance with ASTM D792 (2008); and b) ≥10 and ≤100, preferably ≥20 and ≤50, ppm of α-tocopherol, with regard to the total weight of the composition. Such composition contributes, when used in a laminate comprising a paper layer, a layer of the composition and a layer comprising a curable silicone resin formulation, to an improved cross-linking content upon curing of the curable silicone resin formulation, whilst demonstrating appropriate adhesion to the paper layer.