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The award-winning Phase Change Matters blog tracks the latest news and research on phase change materials and thermal energy storage. E-mail tips and comments to Ben Welter, communications director at Entropy Solutions. Follow the blog on Twitter at @PureTemp. Subscribe to the weekly PCM newsletter. Or join the discussion on LinkedIn.

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Patent application: PCM panel and charging unit for cooling a cabinet of a merchandiser

Ben Welter - Sunday, September 23, 2018

Coca-Cola patent drawing

U.S. patent application 20180266739 (applicant The Coca-Cola Co., Atlanta, Georgia):

"A phase change material panel for cooling a cabinet of a merchandiser is disclosed. The panel may include a refrigerant tube, an outer jacket surrounding the refrigerant tube, and a phase change material positioned between the refrigerant tube and the outer jacket and in contact with the refrigerant tube. ... The panel [shown at right] may be charged at or near the point-of-sale or remotely therefrom, such as at a warehouse, on a truck, at a distribution center, or the like and brought to the merchandiser."

http://www.freepatentsonline.com/20180266739.pdf

Patent application: Core-shell triggered release systems

Ben Welter - Tuesday, September 18, 2018

RTI core shell patent drawingU.S. patent application 20180258340 (applicant Research Triangle Institute, Research Triangle Park, N.C.):

"The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a carrier element forming an outer shell that defines an inner core. The core can include a reactive agent that is adapted to react with the shell, particularly at an inner interface of the shell with the core materials. The reaction can provide an inside-out degradation of the shell and release of one or more materials therein. The reactive agent may be separated from the shell, such as using a phase change material (PCM). Upon reaching specific environmental conditions, the PCM can change so as the release the reactive agent for reaction with the shell. The systems can be used in various methods to deliver a material to various environments, including underground reservoirs."

http://www.freepatentsonline.com/20180258340.pdf

Patent application: Battery cell including phase change material

Ben Welter - Thursday, September 06, 2018

U.S. patent application 20180254533 (applicant LG Chem Ltd., Seoul, South Korea):

"The present invention provides a battery cell of a plate shape, including: an electrode assembly in which a separator is interposed between a positive electrode and a negative electrode, wherein the electrode assembly may be mounted on a receiving part; and sealing parts formed by heat fusion at an external side of the receiving part, wherein lateral sealing parts adjacent to one of the sealing parts at which an electrode terminal is positioned may closely contact an outer surface of the receiving part while being bent toward the receiving part of a battery case, and a phase change material (PCM) that is phase-changed in response to a thermal change may be added to surplus surfaces of the lateral sealing parts or to surplus spaces between the receiving parts and the bent lateral sealing parts."

http://www.freepatentsonline.com/20180254533.pdf

Patent application: Cooling beach blanket

Ben Welter - Thursday, September 06, 2018

U.S. patent application 20180249849 (inventor Christopher Wilkinson, Brooklyn, N.Y.):

Beach cooling blanket patent drawing"A personal cooling system for controlling personal body temperature at the beach comprises a first layer having a first edge region defining a size and a shape of the first layer, the first layer comprising a cooling gel pack, wherein the gel pack has an outer surface and a plurality of compartments for storing a temperature-controlling ingredient therein; a second layer having a second edge region defining a size and a shape of the second layer; and an outside bag, to an inside surface of the outside bag the first layer and the second layer are attached. The second layer in the system further comprises a liquid dispenser that is embedded in the mesh material of the second layer. The actions of the cooling system and the dispenser can be controlled by a remote controller."

http://www.freepatentsonline.com/20180249849.pdf

Patent application: Wall panel with phase change material

Ben Welter - Thursday, September 06, 2018

U.S. patent application 20180251986 (applicant Max Life LLC, Salisbury, N.C.):

Max Life wall panel patent drawing"A wall panel may have a layer made from magnesium oxide, a first insulation layer made from a two-part rigid urethane pour foam, and a second insulation layer made from a phase change material. The first insulation layer maybe chemically bonded to the magnesium oxide layer and may also be bonded to the phase change layer. The first insulation layer may be positioned between the second insulation layer and the magnesium oxide layer. The magnesium oxide layer may be a finished surface or a veneer layer may be applied to the magnesium oxide layer."

http://www.freepatentsonline.com/20180251986.pdf

Patent application: Insulated chamber with packetized phase change material

Ben Welter - Thursday, September 06, 2018

U.S. patent application 20180252466 (applicant Caron Products and Services Inc., Marietta, Georgia):

"An insulated chamber having an interior region for storing items therein includes a phase change material to facilitate controlling the temperature of the interior region and the items. A heating device or cooling device may be used to melt or freeze the phase change material. The phase change material (PCM) may be in various locations such as the walls of the chamber in the form of packets or in the form of containers that serve as shelves and may be removable from the interior region. The packets may have recesses for receiving the items. The phase change material may be within capsules that may be within a liquid or a solid matrix. Controls may be provided to control humidity, oxygen, and carbon dioxide within the interior chamber."

http://www.freepatentsonline.com/20180252466.pdf

Patent application: Moisture wicking and cooling capsules having an outer shell comprising a siloxane

Ben Welter - Thursday, August 30, 2018

U.S. patent application 20180242665 (applicant Microtek Laboratories Inc., Dayton, Ohio):

Microtek cooling capsule patent drawing"Microcapsules or macrocapsules have a core composition that includes a phase changing material (PCM) encapsulated within a polymer wall with an outer shell having a siloxane tethered to an exterior surface of the polymer wall by a surfactant. The siloxane may form a crystalline or a sol-gel outer shell. Methods of making such capsules and textile fabrics and clothing incorporating such capsules include treating pre-formed capsules with a surfactant solution followed by treating with a compound containing a siloxane functional group. The surfactant connects or tethers the siloxane to the exterior surface of the polymer wall and the siloxane forms an outer shell of the capsules."

http://www.freepatentsonline.com/20180242665.pdf

Patent application: Phase change materials and methods of regulating temperature

Ben Welter - Thursday, August 30, 2018

U.S. patent application 20180244971 (applicant Croda International PLC, Yorkshire, Great Britain):

"The present invention provides a phase change material composition comprising an ester of a linear alcohol which has at least 4 carbon atoms and a linear carboxylic acid which has at least 4 carbon atoms, wherein the total number of carbon atoms in the ester is in the range from 13 to 31. The invention also provides products including the phase change material composition and methods of regulating temperature."

http://www.freepatentsonline.com/20180244971.pdf

Patent application: Encapsulation

Ben Welter - Thursday, August 23, 2018

U.S. patent application 20180235893 (Procter & Gamble Co., Cincinnati, Ohio):

"An improved process of making a benefit agent delivery particle and consumer products incorporating such particles are disclosed. The process comprises the steps of providing a first composition of water phase 1, water phase 2 and water phase 3. Water phase 1 comprises water and an initiator; water phase 2 comprises water, a water-soluble or dispersible amine(meth)acrylate or hydroxyl(meth)acrylate and a multifunctional (meth)acrylate. Water phase 3 comprises water, and carboxyalkyl(meth)acrylate and a base or quarternary ammonium acrylate. The first two water phases are combined to prereact the hydroxy- or amine(meth)acrylate and the multifunctional (meth)acrylate to form a multifunctional hydroxyl-amine(meth)acrylate pre-polymer. The pre-polymer is combined with water phase 3; then an emulsion is formed by emulsifying under high shear agitation a second composition into said first composition; said second composition comprising an oil phase comprising an isocyanate and a benefit agent core material thereby forming a wall surrounding the benefit agent core material."

http://www.freepatentsonline.com/20180235893.pdf

Patent application: Thermal device for a fluid, with baffles, and associated circuits

Ben Welter - Thursday, August 23, 2018

Hutchinson thermal device patent drawingU.S. patent application 20180238635 (applicant Hutchinson, Paris, France):

"A thermal device comprising a fluid circulation circuit in which the fluid circulates over time at different temperatures, and a thermal store and heat exchanger arranged on said circuit and enclosing an interior volume in which the fluid circulates, and in which are arranged elements that store and release thermal energy, of PCM type, in contact with the fluid, for heat exchanges. The interior volume of the store and heat exchanger is provided with baffles."

http://www.freepatentsonline.com/20180238635.pdf

Related:

U.S. patent application 20180238636: Unit for storing thermal energy