Patents Assigned to Celanese Advanced Materials, Inc.
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Patent number: 6945153Abstract: A large diameter rope having improved fatigue life on a sheave, pulley, or drum is disclosed. This rope includes a blend of HMPE filaments and liquid crystal polymer filaments selected from the group of lyotropic polymer filaments and thermotropic polymer filaments. The rope may be constructed as a braided rope, a wire-lay rope, or a parallel core rope.Type: GrantFiled: October 15, 2002Date of Patent: September 20, 2005Assignees: Celanese Advanced Materials, Inc., Puget Sound RopeInventors: Robert B. Knudsen, Forrest E. Sloan
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Publication number: 20040235383Abstract: The present invention is a yarn or fabric useful in protective garments. The yarn or fabric is made of flame resistant fibers and microdenier flame resistant fibers. The flame resistant fibers are selected from the group consisting of inherently flame resistant fibers, treated fibers, and combinations thereof. The microdenier flame resistant fibers are selected from the group consisting of microdenier inherently flame resistant fibers, microdenier treated fibers, and combinations thereof. The weight ratio of said flame resistant fibers to said microdenier flame resistant fibers is in the range of 4-9:2-6.Type: ApplicationFiled: May 23, 2003Publication date: November 25, 2004Applicant: Celanese Advanced Materials, Inc.Inventors: Clifton A. Perry, Charles A. Thomas, Diane B. Hess
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Publication number: 20040069132Abstract: A large diameter rope having improved fatigue life on a sheave, pulley, or drum is disclosed. This rope includes a blend of HMPE filaments and liquid crystal polymer filaments selected from the group of lyotropic polymer filaments and thermotropic polymer filaments. The rope may be constructed as a braided rope, a wire-lay rope, or a parallel core rope.Type: ApplicationFiled: October 15, 2002Publication date: April 15, 2004Applicants: Celanese Advanced Materials, Inc., Puget Sound Rope, a/k/a Viking Rope CorporationInventors: Robert B. Knudsen, Forrest E. Sloan
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Publication number: 20030236553Abstract: A sheath/core heterofilament has a core polymer and a sheath polymer. The core polymer and the sheath polymer are different. One of the polymers is a thermotropic polymer. The other polymer is preferably a thermoplastic polymer selected from the group consisting of polyamides, polyesters, polyolefins, fluorocarbons, and combinations thereof. The weight ratio of the core polymer to the sheath polymer ranges from 50:50 to 80:20. When the core polymer is the thermotropic polymer, the sheath polymer is adapted to contain microfibrils formed by the thermotropic polymer core. These heterofilaments may be used as sutures or as orthopedic (or surgical) cords.Type: ApplicationFiled: June 24, 2002Publication date: December 25, 2003Applicant: Celanese Advanced Materials, Inc.Inventor: Robert B. Knudsen
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Publication number: 20030203690Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven or knitted fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of aramid, PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.Type: ApplicationFiled: January 21, 2003Publication date: October 30, 2003Applicant: Celanese Advanced Materials, Inc.Inventors: Diane B. Hess, Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
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Patent number: 6599319Abstract: A prosthetic ligament includes a cord of thermotropic liquid crystal filaments. The cord preferably comprises multi-filament thermotropic liquid crystal filaments. The cord has an eye spliced at each of its ends.Type: GrantFiled: December 14, 2001Date of Patent: July 29, 2003Assignees: Celanese Advanced Materials, Inc., Cortland Cable Company, Inc.Inventors: Robert B. Knudsen, Richard E. Nye
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Publication number: 20030114929Abstract: A prosthetic ligament includes a cord of thermotropic liquid crystal filaments. The cord preferably comprises multi-filament thermotropic liquid crystal filaments. The cord has an eye spliced at each of its ends.Type: ApplicationFiled: December 14, 2001Publication date: June 19, 2003Applicant: Celanese Advanced Materials, Inc.Inventors: Robert B. Knudsen, Richard E. Nye