Department of Chemical and Materials Engineering , National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan, R.O.C. Cross-linking Reaction of Polyethylene. Wang Wei - Shiang , 王韋翔. 技術簡介.
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Department of Chemical and Materials Engineering , National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan, R.O.C.
Cross-linking Reaction of Polyethylene
Wang Wei - Shiang , 王韋翔
Polyethylene and Cross-linked
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Crosslinkedpolyethylene pipe having a high density polyethylene liner
Backman; Arthur L. (Broadview Heights, OH), Dalal; Girish T. (Avon Lake, OH), Mahabir; Carl M. (Streetsboro, OH)
Noveon IP Holdings Corp. (Cleveland, OH) )
July 10, 2003
August 8, 2006
Crosslinking of polyethylene for low wear using radiation and thermal treatments
Orthopaedic Hospital (Los Angeles, CA) University of Southern California (Los Angeles, CA)
Shen; Fu-Wen (Walnut, CA), McKellop; Harry A. (Los Angeles, CA), Salovey; Ronald (Rancho Palos Verdes, CA)
February 26, 2001
October 5, 2004
High density polyethylene films with improved barrier properties
Eastman Chemical Company (Kingsport, TN)
Klosiewicz; Daniel W. (Wilmington, DE)
June 5, 1998
August 13, 2002
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西川茂雄 SHIGEO NISHIKAWA有本昌司 MASASHI ARIMOTO江里口真男 MICHIO ERIGUCHI
三井化學股份有限公司 MITSUI CHEMICALS, INC.
7,086,421- (Issued Patents)
A multilayer PEX pipe having improved resistance to oxidizing agents in water. The pipe has a thin tubular core (inner layer) of high density polyethylene and an outer layer of crosslinked polyethylene. The pipe may optionally have an oxygen barrier layer, such as poly(ethylene-co-vinyl alcohol) ("EVOH"), contiguously disposed radially outward from the PEX layer. The pipe is suitable for potable water applications and for hot water radiant heating systems.
6,800,670- (Issued Patents)
The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant. 。
6,432,496- (Issued Patents)
This invention relates High Density Polyethylene (HDPE) films having improved barrier properties. More particularly, the invention relates to HDPE films containing hydrocarbon resins having improved moisture barrier. The invention also relates to masterbatches for use in producing High Density Polyethylene films having improved barrier properties.