Claims

[Claim 1] A process comprising: contacting ethylene and octene under polymerization conditions at a temperature greater than 125°C with a catalyst system comprising (i) a first polymerization catalyst having the structure of catalyst 1 catalyst 1

(ii) a second polymerization catalyst having the structure of catalyst 2 catalyst 2

(iii) a first co-catalyst that is a borate-based co-catalyst;

(iv) a second co-catalyst that is an aluminum-based co-catalyst;

(v) a chain shuttling agent; maintaining, during the contacting, an aluminum to hafnium molar ratio from 7.1 to 15.6; and forming an ethylene/octene multi-block copolymer having a normalized 000 triad content greater than 0.25.

[Claim 2] The process of claim 1 comprising contacting the ethylene and octene under polymerization conditions at a temperature from 130°C to 170°C; and forming an ethylene/octene multi-block copolymer having hard segments and soft segments, the soft segments having a soft segment melting temperature (SS-Tm) from -30°C to 30°C, the ethylene/octene multi-block copolymer having a first TGIC peak temperature (T_pi) and

40 a second TGIC peak temperature (T_p2) wherein T_p2 fulfills Equation (A)

T_p2< 0.0068 x (SS-Tm)² + 0.07 x (SS-Tm) + 73.2.

[Claim 3] A composition comprising: an ethylene/octene multi-block copolymer comprising hafnium and aluminum at an aluminum to hafnium molar ratio from 7.1 to 15.6; and the ethylene/octene multi-block copolymer has a normalized OOO triad content greater than 0.25.

[Claim 4] The composition of claim 3 wherein the ethylene/octene multi-block copolymer comprises from 10 mol % to 30 mol % of octene. [Claim 5] The composition of claim 4 wherein the ethylene/octene multi-block copolymer comprises hard segments and soft segments, the soft segments having a soft segment melting temperature (SS-Tm) from -30°C to 30°C, the ethylene/octene multi block copolymer having a first TGIC peak temperature (T_pi) and a second TGIC peak temperature (T_p2) wherein T_p2 fulfills Equation (A)

T_p2< 0.0068 x (SS-Tm)² + 0.07 x (SS-Tm) + 73.2.

[Claim 6] The composition of claim 5 wherein the ethylene/octene multi-block copolymer has T_p[ from 125°C to 150°C and a T_p2from 68°C to 90°C.

[Claim 7] The composition of claim 6 wherein the ethylene/octene multi-block copolymer has a glass transition temperature (Tg) from -70°C to -55°C.

[Claim 8] The composition of claim 7 wherein the ethylene/octene multi-block copolymer has a density from 0.855 to 0.890 grams per cubic centimeter (g/cc).

[Claim 9] The composition of claim 8 wherein the ethylene/octene multi-block copolymer has an unconfined yield strength (UYS) from 0 lb/ft² to less than 200 lb/ft² at 21°C after two months.

[Claim 10] The composition of any of claims 8-9 wherein the ethylene/octene multi-block copolymer has a funnel flow from greater than 150 g/s to 200 g/s after 6 weeks.

[Claim 11] The composition of any of claims 8-10 wherein the ethylene/octene multi-block copolymer has an unconfined yield strength (UYS) from 0 lb/ft² to less than 73 lb/ft² at 0°C after two months.

41