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Title:
REVERSIBLE CROSSLINKED FOAM ARTICLE AND PROCESS
Document Type and Number:
WIPO Patent Application WO/2024/012575
Kind Code:
A1
Abstract:
The present disclosure is directed to a foam article. In an embodiment, the foam article includes a crosslinked foam composition formed from starting materials comprising (i) a polymer selected from the group consisting of an ethylene‐based polymer, a polar ethylene‐based polymer, and combinations thereof, and (ii) 2, 2, 6, 6‐tetramethyl‐4‐piperidyl methacrylate disulfide (BiTEMPS) methacrylate. This yields a foam article that is composed of a crosslinked composition comprising (i) the polymer selected from the group consisting of the ethylene‐based polymer, the polar ethylene‐based polymer, and combinations thereof, and (ii) linkages having a Structure (2) below

Inventors:
LYU BO (CN)
LI PI SHAN COLIN (US)
SUN YABIN (CN)
BROWN HAYLEY A (US)
HALL RYAN (US)
WU GAOXIANG (US)
Application Number:
PCT/CN2023/107514
Publication Date:
January 18, 2024
Filing Date:
July 14, 2023
Export Citation:
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Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
LYU BO (CN)
International Classes:
C08L23/04; C08F293/00; C08K5/372; C08K5/378; C08L23/06; C08L23/08
Domestic Patent References:
WO2021033140A12021-02-25
Foreign References:
US20200199320A12020-06-25
US20220153698A12022-05-19
US20150025165A12015-01-22
US20220025096A12022-01-27
CN113631655A2021-11-09
Other References:
BIN RUSAYYIS MOHAMMED A., TORKELSON JOHN M.: "Reprocessable covalent adaptable networks with excellent elevated-temperature creep resistance: facilitation by dynamic, dissociative bis(hindered amino) disulfide bonds", POLYMER CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, vol. 12, no. 18, 11 May 2021 (2021-05-11), Cambridge , pages 2760 - 2771, XP093127660, ISSN: 1759-9954, DOI: 10.1039/D1PY00187F
FENIMORE LOGAN M., CHEN BORAN, TORKELSON JOHN M.: "Simple upcycling of virgin and waste polyethylene into covalent adaptable networks: catalyst-free, radical-based reactive processing with dialkylamino disulfide bonds", JOURNAL OF MATERIALS CHEMISTRY A, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 10, no. 46, 29 November 2022 (2022-11-29), GB , pages 24726 - 24745, XP093127662, ISSN: 2050-7488, DOI: 10.1039/D2TA06364F
Attorney, Agent or Firm:
WU, FENG & ZHANG (CN)
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