公开(公告)号：US11692116B2

公开(公告)日：2023-07-04

申请号：US16496955

申请日：2018-03-23

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Qiang Zhu ,  Tao Tang ,  Ying Ying Lesley Low ,  Xiang Yun Debbie Soo ,  Jian Wei Xu

IPC: C09K5/06 ,  F25D3/02 ,  B32B7/027 ,  B65D81/38

CPC classification number: C09K5/063 ,  B32B7/027 ,  B65D81/38 ,  F25D3/02 ,  F25D2303/085 ,  Y02E60/14

Abstract: The present disclosure relates to a phase change material (PCM) composition and a process for preparation thereof, wherein said composition comprising a phase change material, glass fibers and xanthan gum. In a preferred embodiment, the phase change material is water (or ice) and the g lass fibers are glass wool. The disclosure also relates to a stackable and sealable package enclosing the PCM composition. In a particular embodiment, the PCM composition is used to prepare a cold box that may be used in cold chain transportation.

公开(公告)号：US20210130512A1

公开(公告)日：2021-05-06

申请号：US16491783

申请日：2018-03-07

Applicant: Agency for Science, Technology and Research

Inventor： Tao Tang ,  Aung Ko Ko Kyaw ,  Qiang Zhu ,  Jian Wei Xu

IPC: C08F32/08 ,  C08L25/18 ,  B01D71/34 ,  C08F2/18 ,  C08F6/24 ,  C08F4/26

Abstract: A method of synthesizing a water-dispersible conductive polymeric composite comprising mixing an aqueous suspension comprising optionally substituted azulene monomers and a dopant precursor such as polystyrene sulfonic acid with an oxidizing agent and a catalyst to form a doped poly(azulene) suspension wherein the poly(azulene)/dopant molar ratio is 1:1 to 1:6. The doped poly(azulene) suspension is then contacted with acidic and basic resins to remove the oxidizing agent and catalyst. The resulting suspension is then filtered through a membrane such as polyvinylidene fluoride (PVDF) to afford a purified suspension comprising the water-dispersible conductive polymeric composite. A water-dispersible conductive polymeric composite comprising an optionally substituted poly(azulene) doped by a dopant such as polystyrene sulfonate wherein the poly(azulene)/dopant molar ratio is 1:1 to 1:6 is also disclosed.

公开(公告)号：US11320212B2

公开(公告)日：2022-05-03

申请号：US16980946

申请日：2019-03-15

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Qiang Zhu ,  Xiang Yun Debbie Soo ,  Tao Tang ,  Suxi Wang ,  Jianwei Xu

IPC: F28D15/00 ,  F28D20/02 ,  C09K5/06

Abstract: A thermal control system with new phase change material (PCM) formulations that are able to maintain the system interior in a temperature range of, for example, −15 to −40° C., for a tunable working period from several hours to approximately half a day, is provided. The composition includes the inorganic and organic materials. The inorganic materials include the inorganic salts and various functional additives; while the organic materials include fatty acids, hydrocarbons and various nanostructures.