Patent ID: 11879056
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A multilayer film comprising at least two layers comprising:
a first layer comprising
(A) from 90 wt % to 99 wt % of a first ethylene-based polymer selected from an ethylene homopolymer, an ethylene/α-olefin copolymer consisting of ethylene and a C3-C10 α-olefin, or mixtures thereof;
(B) from 0.5 wt % to 2 wt % of a slip agent blend based on total weight of the first layer, the slip agent blend comprising
(i) from 60 wt % to 90 wt % of a first polydimethylsiloxane having a number average molecular weight (Mn) from 30,000 g/mol to 70,000 g/mol;
(ii) from 10 wt % to 40 wt % of a second polydimethylsiloxane having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol, wherein wt % for (B)(i) and (B)(ii) is based on the total weight of the slip agent blend;

a second layer in contact with the first layer, the second layer comprising a second ethylene-based polymer;
the first layer has a coefficient of friction (COF) from 0.01 to 0.35 as measured according to ISO 8295; and
the first polydimethysiloxane is dimethylhydroxysilyl terminated and the second polydimethylsiloxane is dimethylvinylsilyl terminated.