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US 11,299,617 B2Granted
Low speed cross-linking catalyst for silane-grafted plastomers
AssigneeBorealis AG
InventorsOscar Prieto, Jeroen Oderkerk, Jari-Jussi Ruskeeniemi, Stefan Hellström, Tanja Piel, Daniela Mileva
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Abstract
The present invention relates to silane crosslinking catalyst comprising: —75 to 85 wt.-% of an olefin acrylate interpolymer and—15 to 25 wt.-% of a hindered amine light stabilizer (HALS) having a number average molecular weight Mn of 1500 to 4000 g/mol; and—optionally up to 5 wt.-% wax, wherein the silane crosslinking catalyst is free of tin, carboxylic acid(s) and sulphonic acid(s), all weight percentages with respect to the total weight of the silane crosslinking catalyst.
Claims4
A silane crosslinking catalyst comprising
- 75 to 85 wt.-% of an olefin acrylate interpolymer and
- 15 to 25 wt.-% of a hindered amine light stabilizer (HALS) having a number average molecular weight Mn of 1500 to 4000 g/mol;
- and
- optionally up to 5 wt.-% wax,
- wherein said olefin acrylate interpolymer is ethylene butyl acrylate copolymer (EBA) having a content of butyloxy group O—CH2—CH2—CH2—CH3 of 15 to 20 wt.-% with respect to the ethylene butyl acrylate copolymer (EBA), and/or a melt flow rate of 5.0 to 10.0 g/10 min (ISO1133, 2.16 kg load, 190° C.);
- wherein the silane crosslinking catalyst is free of tin, carboxylic acid(s), and sulphonic acid(s), and
- wherein all weight percentages are with respect to the total weight of the silane crosslinking catalyst.
4 more elements
Dependencies are inferred from the claim text.