# US 2014/0190644 A1 · Additives with cloud points to improve efficiency of release agents > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190644 A1 - Document ID: US20140190644A1 - Status: Published application - Kind: A1 - Application number: 14/135,440 - Filed: 2013-12-19 - Published: 2014-07-10 - Earliest claimed: 2013-01-04 - Assignees: Georgia-Pacific Chemicals LLC - Applicants: Georgia-Pacific Chemicals LLC - Inventors: David F. Townsend - Web page: https://patentgrep.com/patent/US20140190644A1 ## CPC - B31F 1/126: {including making of the paper to be crêped} - D21H 21/146: {Crêping adhesives} - D21H 27/02: Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) - B31F: MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making layered products not composed wholly of paper or cardboard B32B) - D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR ## Abstract This disclosure relates to papermaking and the use of creping adhesive and release agent compositions used in papermaking. In one aspect, there is provided a new class of release agents and compositions comprising release agents, the release agent comprising: a) a release agent comprising a quaternary imidazoline compound, an imidazoline free base, an oil-based dispersion, or a combination thereof; and b) a polyether component selected from a polypropylene glycol (PPG), a co-polymer of propylene glycol and ethylene glycol (co-PPG-PEG), a blend of polypropylene glycol (PPG) and polyethylene glycol (PEG), and a combination thereof, wherein the release composition has a cloud point in water at standard pressure from about 1° C. to about 98° C. There are also provided creping compositions having a cloud point, comprising an adhesive composition and a release composition as described. ## Claims ### Claim 1 A release composition for use in a creping process, the release composition comprising: a) a release agent comprising a quaternary imidazoline compound, an imidazoline free base, an oil-based dispersion, or a combination thereof; and b) a polyether component selected from a polypropylene glycol (PPG), a co-polymer of propylene glycol and ethylene glycol (co-PPG-PEG), a blend of polypropylene glycol (PPG) and polyethylene glycol (PEG), an alcohol polyether, an alkyl phenol polyether, and a combination thereof; wherein the release composition has a cloud point in water at standard pressure from about 1° C. to about 98° C. ### Claim 2 (depends on 1) The release composition according to claim 1, further comprising: a) a nonionic surfactant; b) a surfactant with a hydrophilic-lipophilic balance (HLB) less than about 15; c) a cationic or anionic emulsifying agent; d) an anti-foaming agent selected from a sulfonated oil, an organic phosphate, a polyether, and a silicone fluid; or e) combinations thereof. ### Claim 3 (depends on 1) The release composition according to claim 1, wherein the release agent comprises a fatty quaternary imidazoline derived from a fatty acid. ### Claim 4 (depends on 1) The release composition according to claim 1, wherein the release agent comprises a methyl sulfate or ethyl sulfate salt of a fatty quaternary imidazoline derived from a fatty acid. ### Claim 5 (depends on 1) The release composition according to claim 1, wherein the release agent comprises a compound having the formula: wherein R1 is selected independently from a C6 to C22 hydrocarbyl moiety, R2 is methyl or ethyl, and X is [R2SO4]−. ### Claim 6 (depends on 1) The release composition according to claim 1, wherein the release agent comprises an oil-based dispersion, an oil-based dispersion comprising a paraffinic oil, a naphthenic oil, a vegetable oil, or a combination thereof. ### Claim 7 (depends on 1) The release composition according to claim 1, wherein the polyether component comprises: a) polypropylene glycol (PPG) having a weight average molecular weight (Mw) from about 400 to about 3,500 Daltons; b) a block copolymer of propylene glycol and ethylene glycol (co-PPG-PEG) having a weight average molecular weight (Mw) from about 300 to about 4,000 Daltons, wherein the ratio of PPG monomer residues to PEG monomer residues is from 20:1 to 1:5; or c) combinations thereof. ### Claim 8 A creping composition having a cloud point and comprising a release composition, wherein: the creping composition clouds at temperatures above its cloud point; the release composition comprises: a) a release agent; and b) a polyether component; the release composition has a cloud point in water at standard pressure from about 1° C. to about 99° C. ### Claim 9 (depends on 8) The creping composition according to claim 8, wherein the creping composition further comprises an adhesive composition. ### Claim 10 (depends on 9) The creping composition according to claim 9, wherein the adhesive composition comprises a polyamidoamine-epihalohydrin polymer composition. ### Claim 11 (depends on 8) The creping composition according to claim 8, wherein the creping composition further comprises a plasticizer selected from water soluble polyols, glycols, glycerol, sobitol, polyglycerin, polyethylene glycols, sugars, oligosaccharides, hydrocarbon oils, and blends thereof. ### Claim 12 (depends on 8) The creping composition according to claim 8, wherein: a) the release agent comprises a quaternary imidazoline compound, an imidazoline free base, an oil-based dispersion, or a combination thereof; b) the polyether component comprises a polypropylene glycol (PPG), a co-polymer of propylene glycol and ethylene glycol (co-PPG-PEG), a blend of polypropylene glycol (PPG) and polyethylene glycol (PEG), an alcohol polyether, an alkyl phenol polyether, or a combination thereof; or c) a combination thereof. ### Claim 13 (depends on 8) The creping composition according to claim 8, wherein the release agent comprises a fatty quaternary imidazoline derived from a fatty acid. ### Claim 14 (depends on 8) The creping composition according to claim 8, wherein the release agent comprises a methyl sulfate or ethyl sulfate salt of a fatty quaternary imidazoline derived from a fatty acid. ### Claim 15 (depends on 8) The creping composition according to claim 8, wherein the release agent comprises a compound having the formula: wherein R1 is selected independently from a C6 to C22 hydrocarbyl moiety, R2 is methyl or ethyl, and X is [R2SO4]−. ### Claim 16 (depends on 8) The creping composition according to claim 8, wherein the release agent comprises an oil-based dispersion, an oil-based dispersion comprising a paraffinic oil, a naphthenic oil, a vegetable oil, or a combination thereof. ### Claim 17 (depends on 8) The creping composition according to claim 8, wherein the polyether component comprises: a) polypropylene glycol (PPG) having a weight average molecular weight (Mw) from about 400 to about 3,500 Daltons; b) a block copolymer of propylene glycol and ethylene glycol (co-PPG-PEG) having a weight average molecular weight (Mw) from about 300 to about 4,000 Daltons, wherein the ratio of PPG monomer residues to PEG monomer residues is from 20:1 to 1:5; or c) combinations thereof. ### Claim 18 (depends on 8) The creping composition according to claim 8, wherein the release composition has a cloud point in water at standard pressure from about 5° C. to about 95° C. ### Claim 19 A method of creping a cellulosic fiber web, the method comprising: a) providing a creping composition having a cloud point, wherein the creping composition clouds at temperatures above its cloud point, the creping composition comprising a release composition, wherein the release composition comprises a release agent and a polyether component; b) applying the creping composition having a first temperature to a drying surface having a second temperature higher than the first temperature; c) contacting a cellulosic fiber web to the drying surface such that the cellulosic fiber web adheres to the drying surface; and d) dislodging the cellulosic fiber web from the drying surface; wherein the cloud point of the creping composition is above the first temperature and below the second temperature. ### Claim 20 (depends on 19) The method according to claim 19, wherein: a) the release agent comprises a quaternary imidazoline compound, an imidazoline free base, an oil-based dispersion, or a combination thereof; and b) the polyether component is selected from a polypropylene glycol (PPG), a co-polymer of propylene glycol and ethylene glycol (co-PPG-PEG), a blend of polypropylene glycol (PPG) and polyethylene glycol (PEG), an alcohol polyether, an alkyl phenol polyether, and a combination thereof.