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1. (WO2018222714) SINGLE-PHASE SOLUTION MOLDING

Pub. No.:    WO/2018/222714    International Application No.:    PCT/US2018/035128
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: B29C 44/10
B29C 44/34
Applicants: NIKE INNOVATE C.V.
NIKE, INC.
Inventors: DARLAND, Jeffrey E.
MACE, Ryan Alvin
Title: SINGLE-PHASE SOLUTION MOLDING
Abstract:
Aspects hereof provide methods for molding a single-phase solution comprised of a polymer composition and a gas. The polymer composition and the gas are maintained under pressure during the molding operation to prevent a cellular structure from being formed by the dissolved gas in the polymer composition coming out of solution. The mold cavity in which the single-phase solution is introduced for molding purposes is pressurized to a mold pressure that is sufficient to maintain the single-phase solution as a single-phase solution as the mold cavity is filled. Subsequent to filling the mold cavity with the single-phase solution under pressure, the resulting article may solidify entrapping the compressed gas, or the article may be exposed to a reduction in pressure causing the entrapped gas to form a cellular structure.