公开(公告)号：US20250091267A1

公开(公告)日：2025-03-20

申请号：US18884625

申请日：2024-09-13

Applicant: TSRC Corporation

Inventor： Yuanpang Samuel Ding ,  Chien-Liang Chou ,  Ching-Han Kuo ,  Pang-Hsuan Lin

IPC: B29C45/16 ,  B29K21/00 ,  B29K96/04 ,  B29K101/12 ,  B29K105/00 ,  B29L31/56

Abstract: The present invention provides a manufacturing method for a stopper used in medical containers, the stopper having a septum and a housing supporting the septum, the manufacturing method comprising firstly creating the septum using a first molding process with a thermoplastic elastomer composition; then creating the housing using a second molding process with a plastic composition, by the second molding process the septum being pre-compressed in a radial direction perpendicular to a needle penetration direction of the septum; and subjecting the stopper to a steam sterilization, wherein after the septum experiences the steam sterilization, the septum exhibits a residual pre-compression level of 12% to 30% in the radial direction compared to when the septum is uncompressed, and the residual pre-compression level is measured based on a thickness or average diameter of the septum.

公开(公告)号：US11746226B2

公开(公告)日：2023-09-05

申请号：US16704166

申请日：2019-12-05

Applicant: TSRC Corporation

Inventor： Hsi-Hsin Shih ,  Chia-Hung Hsu ,  Pang-Hsuan Lin ,  Yun-Shiuan Yeh

IPC: C08L53/02 ,  C08J9/00 ,  C08L91/00 ,  C08J9/12

CPC classification number: C08L53/025 ,  C08J9/122 ,  C08L91/00 ,  C08J2201/03 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2205/044 ,  C08J2207/10 ,  C08J2353/02

Abstract: The present invention provides a polymer composition for manufacturing a foam, the polymer composition comprising a vinyl aromatic based copolymer and a processing aid, wherein the amount of the processing aid in the total weight of the polymer composition is equal to or more than 5 wt % and equal to or less than 75 wt %; and the polymer composition does not comprise ethylene-vinyl acetate copolymer, ethylene-butyl acrylate copolymer, ethylene-α-olefin copolymer, homopolymer and copolymer of polyethylene, homopolymer and copolymer of polypropylene, homopolymer and copolymer of polybutene and olefin-based ionic polymer. The present invention also provides the foam and the method for forming the same.

公开(公告)号：US20200224023A1

公开(公告)日：2020-07-16

申请号：US16704166

申请日：2019-12-05

Applicant: TSRC Corporation

Inventor： Hsi-Hsin Shih ,  Chia-Hung Hsu ,  Pang-Hsuan Lin ,  Yun-Shiuan Yeh

IPC: C08L53/02 ,  C08J9/12 ,  C08L91/00

Abstract: The present invention provides a polymer composition for manufacturing a foam, the polymer composition comprising a vinyl aromatic based copolymer and a processing aid, wherein the amount of the processing aid in the total weight of the polymer composition is equal to or more than 5 wt % and equal to or less than 75 wt %; and the polymer composition does not comprise ethylene-vinyl acetate copolymer, ethylene-butyl acrylate copolymer, ethylene-α-olefin copolymer, homopolymer and copolymer of polyethylene, homopolymer and copolymer of polypropylene, homopolymer and copolymer of polybutene and olefin-based ionic polymer. The present invention also provides the foam and the method for forming the same.