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AssigneeList Technology AG
InventorsManuel Steiner, Roland Kunkel, Daniel Witte, Judith Andrea Michelle Günther
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A method for producing a transfer mixture by the direct dissolution method in a thin film evaporator (D) having a feed, a housing and a discharge, wherein the feed introduces a product consisting essentially of cellulose, water and a functional liquid into the housing, wherein an evaporator shaft (5) situated in the housing (4) rotationally wipes the product over the heated interior of the housing (4), wherein the product heats up and some of the water evaporates, so that the transfer mixture is obtained, wherein (a) the transfer mixture is discharged before the product substantially overheats; and (b) all heating surfaces of the thin film evaporator in contact with the product are subjected to a heating temperature, which is at least 20K above the temperature of the product.
Thin film evaporator (D) for processing a starting material into a transfer mixture according to a direct dissolution method, comprising a feed, a housing and a discharge, wherein the feed introduces the product of essentially cellulose, water and a functional liquid into the housing (4), wherein an evaporator shaft (5) situated in the housing (4) rotationally wipes the product over the heated interior of the housing (4), wherein the product heats and some of the water evaporates to form the transfer mixture, wherein all heating surfaces of the thin film evaporator in contact with the product are subjected to a heating temperature that is at least 20K above the temperature of the product, wherein upon reaching the composition of the transfer mixture of
Thin film evaporator (D) for processing a starting material into a transfer mixture according to a direct dissolution method, comprising a feed, a housing and a discharge, wherein the feed introduces the product consisting essentially of cellulose, water and N-Methylmorpholine-N-Oxide (NMMO) into the housing (4), wherein an evaporator shaft (5) situated in the housing (4) rotationally wipes the product over the heated interior of the housing (4), wherein the product heats and some of the water evaporates to form the transfer mixture, wherein upon reaching the composition of the transfer mixture of
Dependencies are inferred from the claim text.