Abstract: It is provided a process for producing an ethylene copolymer comprising compressing ethylene monomer at a certain pressure; adding a fresh comonomer in liquid form and, optionally, a fresh modifier in liquid form at a certain pressure to the compressed ethylene monomer; introducing the resulting compressed mixture into an autoclave reactor having a first reaction zone and at least one more reaction zone, the first reaction zone having a volume that is greater than 50% of the total reactor volume, and, optionally, at least one additional reactor; adding at least one free radical initiator in order to start a polymerization reaction; and separating the ethylene copolymer from the reaction mixture; wherein all the compressed ethylene monomer or the compressed mixture are introduced into the first reaction zone of the autoclave reactor, and wherein the compressed mixture is introduced into the autoclave reactor and, optionally, into the at least one additional reactor at a temperature from ?20° C. to 70° C.

Abstract: A high pressure polymerization to form an ethylene-based polymer, the process comprising the following: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones.

Abstract: A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones, and at least one of the following a) through c), is met: (a) up to 100 wt % of the ethylene stream to the first zone comes from a high pressure recycle, and/or up to 100 wt % of the last ethylene stream to a zone comes from the output from a Primary compressor system; and/or (b) up to 100 wt % of the ethylene stream to first zone comes from the output from a Primary compressor system, and/or up to 100 wt % of the last ethylene stream to a zone comes from a high pressure recycle; and/or (c) the ethylene stream to the first zone, and/or the last ethylene stream to a zone, each comprises a controlled composition; and wherein each ethylene stream to a zone receives an output from two or more cyli

Abstract: A process to form an ethylene-based polymer, as described herein, in a tubular reactor system comprising at least three ethylene-based feeds, and at least four reaction zones, and where the weight ratio of “the ethylene-based feed to the second zone (EBF2)” to “the ethylene-based feed to the first zone (EBF1),” is from 0.50 to 1.10; and the weight ratio of “the ethylene-based feed to the third zone (EBF3)” to “the ethylene-based feed to the first zone (EBF1),” is from 0.40 to 2.50; in each zone, the polymerization takes place at a start temperature?135° C.; and (a) for three or more ethylene based feeds, the peak temperatures in the first and the second zones, are each from 200° C. to 250° C.; and/or (b) for four or more ethylene based feeds, the peak temperatures in the first, the second and the third zones, are each from 200° C. to 250° C.; and the differential in peak temperatures of the first three zones (TP1, TP2, TP3) meets at least one relationship described herein.

Abstract: A process to form an ethylene-based polymer, as described herein, in a tubular reactor system comprising at least three ethylene-based feeds, and at least four reaction zones, and where the weight ratio of “the ethylene-based feed to the second zone (EBF2)” to “the ethylene-based feed to the first zone (EBF1),” is from 0.50 to 1.10; and the weight ratio of “the ethylene-based feed to the third zone (EBF3)” to “the ethylene-based feed to the first zone (EBF1),” is from 0.40 to 2.50; in each zone, the polymerization takes place at a start temperature ?135° C.; and (a) for three or more ethylene based feeds, the peak temperatures in the first and the second zones, are each from 200° C. to 250° C.; and/or (b) for four or more ethylene based feeds, the peak temperatures in the first, the second and the third zones, are each from 200° C. to 250° C.; and the differential in peak temperatures of the first three zones (TP1, TP2, TP3) meets at least one relationship described herein.

Abstract: A process to form an ethylene-based polymer comprising polymerizing a mixture comprising ethylene, in the presence of a free-radical initiator, and in a tubular reactor system comprising at least two ethylene-based feed streams, and a reactor configuration that comprises at least three reaction zones; and the inlet pressure of the first zone is <3200 Bar; and the ethylene conversion >28%, and an m value from 20 mole % to 70 mole %, where m=mol % of ethylene-based feed stream to the first zone, based on total moles of ethylene-based feed streams fed to the reactor configuration; and the ratio (Q) of a “MWDB of a broad polymer polymerized, to a “MWDN of a narrow polymer polymerized, is as follows: {(T)*(?2.3×log(m)+7)}?Q?{(T)*(?13.0×log(m)+29.8)}; at the same melt index; and “T” is the “chain transfer activity ratio” as described herein.

Abstract: A process is provided to form an ethylene-based polymer, in the presence of at least one free-radical, said process comprises at least the following: polymerizing a mixture comprising ethylene, in a reactor configuration comprising at least three reaction zones, and comprising two ethylene feed streams, and wherein the ratio (RLCBf40%), in percent, of the “LCB content of the first 40 wt % of the total polymer formed” to “the total LCB content in the final polymer” is ?22.5%; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone, is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization.

Abstract: A process to form an ethylene-based polymer, in the presence of at least one free-radical, said process comprises at least the following: polymerizing a mixture comprising ethylene in a reactor configuration comprising at least four reaction zones, and comprising at least three ethylene feed streams; and wherein the ratio of (RLCBf40%), in percent, of the LCB content of the “first 40 wt % of the total polymer formed” to the “total LCB content in the final polymer” is ?29%; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone, is from 20 mole % to 70 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization.

Abstract: A process to form an ethylene-based polymer, said process comprising at least the following: polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; and wherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and wherein the average polymerization temperature of the first 40 wt % polymer formed (APT40 wt %) (based on the total amount of polymer formed) is less than, or equal to, 200° C.

Abstract: A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones, and at least one of the following a) through c), is met: (a) up to 100 wt % of the ethylene stream to the first zone comes from a high pressure recycle, and/or up to 100 wt % of the last ethylene stream to a zone comes from the output from a Primary compressor system; and/or (b) up to 100 wt % of the ethylene stream to first zone comes from the output from a Primary compressor system, and/or up to 100 wt % of the last ethylene stream to a zone comes from a high pressure recycle; and/or (c) the ethylene stream to the first zone, and/or the last ethylene stream to a zone, each comprises a controlled composition; and wherein each ethylene stream to a zone receives an output from two or more cyli

Abstract: A process to form an ethylene-based polymer comprising polymerizing a mixture comprising ethylene, in the presence of a free-radical initiator, and in a tubular reactor system comprising at least two ethylene-based feed streams, and a reactor configuration that comprises at least three reaction zones; and the inlet pressure of the first zone is <3200 Bar; and the ethylene conversion >28%, and an m value from 20 mole % to 70 mole %, where m=mol % of ethylene-based feed stream to the first zone, based on total moles of ethylene-based feed streams fed to the reactor configuration; and the ratio (Q) of a “MWDB of a broad polymer polymerized, to a “MWDN of a narrow polymer polymerized, is as follows: {(T)*(?2.3×log(m)+7)}?Q?{(T)*(?13.0×log(m)+29.8)}; at the same melt index; and “T” is the “chain transfer activity ratio” as described herein.

Abstract: A process to form an ethylene-based polymer, in the presence of at least one free-radical, said process comprises at least the following: polymerizing a mixture comprising ethylene in a reactor configuration comprising at least four reaction zones, and comprising at least three ethylene feed streams; and wherein the ratio of (RLCBf40%), in percent, of the LCB content of the “first 40 wt % of the total polymer formed” to the “total LCB content in the final polymer” is ?29%; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone, is from 20 mole % to 70 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization.

Abstract: A process to form an ethylene-based polymer, said process comprising at least the following: polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; and wherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and wherein the average polymerization temperature of the first 40 wt % polymer formed (APT40 wt %) (based on the total amount of polymer formed) is less than, or equal to, 200° C.

Abstract: A process is provided to form an ethylene-based polymer, in the presence of at least one free-radical, said process comprises at least the following: polymerizing a mixture comprising ethylene, in a reactor configuration comprising at least three reaction zones, and comprising two ethylene feed streams, and wherein the ratio (RLCBf40%), in percent, of the “LCB content of the first 40 wt % of the total polymer formed” to “the total LCB content in the final polymer” is ?22.5%; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone, is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization.