Patents Assigned to Ticona LLC
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Patent number: 8921471Abstract: A polymeric composition containing a polyacetal resin in conjunction with a formaldehyde inhibiting agent is described. The formaldehyde inhibiting agent comprises an aluminum pigment. The aluminum pigment may comprise elemental aluminum, such as aluminum flakes that cannot only drastically reduce formaldehyde emissions from the composition but can also give the composition a metallic appearance. In one embodiment, the aluminum pigment may be combined with the polyacetal resin in conjunction with an unhindered phenol and/or a polyethylene resin. In order to further reduce formaldehyde emissions, in one embodiment, a formaldehyde scavenger comprising a nitrogen containing compound can also be added.Type: GrantFiled: July 14, 2010Date of Patent: December 30, 2014Assignee: Ticona LLCInventor: Bruce M. Mulholland
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Patent number: 8921513Abstract: Methods for forming a low chlorine content washed polyarylene sulfide are described. Methods include washing a polyarylene sulfide that includes aryl halide endgroups with a solution that includes a disulfide compound. The solution can also include a catalyst and an organic solvent. During the disulfide wash, a nucleophilic substitution reaction occurs between the disulfide compound and aryl halides endgroups of the polyarylene sulfide. The nucleophilic substitution reaction is carried out at conditions to prevent chain scission of the polyarylene sulfide that includes the aryl halide endgroups. Compositions and products formed with the low chlorine content disulfide washed polyarylene sulfide are also described.Type: GrantFiled: September 18, 2012Date of Patent: December 30, 2014Assignee: Ticona LLCInventors: Rong Luo, Xinyu Zhao
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Patent number: 8910669Abstract: An insert, a pipe assembly, and a method for forming a pipe assembly are disclosed. The pipe assembly includes a hollow body and an insert bonded to the hollow body. The insert spans a knit line defined in the hollow body. The insert is formed from a fiber reinforced polymer material. The fibers are generally anisotropic, and preferably unidirectional, and the insert is oriented such that the fibers extend at an angle to the knit line and thus span the knit line. Preferably, the fibers extend perpendicularly to the knit line. The use of an insert having such an orientation reinforces the hollow body, particularly at the knit line. Thus, the use of such an insert bonded to a hollow body according to the present disclosure produces a pipe assembly having increased pressure ratings.Type: GrantFiled: February 22, 2013Date of Patent: December 16, 2014Assignee: Ticona LLCInventor: David Michael Sheridan
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Patent number: 8906259Abstract: A thermoplastic composition that comprises a naphthenic-rich, thermotropic liquid crystalline polymer blended with a flow modifier is provided. The flow modifier is an aromatic carboxylic acid that contains or more carboxyl functional groups. Without intending to be limited by theory, it is believed that the functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. It is also believed that such acids can combine smaller chains of the polymer together after they have been cut during processing. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced. As a result of the present invention, the melt viscosity of the thermoplastic composition is generally low enough so that it can readily flow into the cavity of a mold having small dimensions.Type: GrantFiled: November 13, 2012Date of Patent: December 9, 2014Assignee: Ticona LLCInventor: Young Shin Kim
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Patent number: 8906258Abstract: A thermotropic liquid crystalline polymer composition capable of exhibiting both a low melting temperature and good heat resistance without the use of conventional naphthenic acids is provided. The melting temperature may, for example, range from about 250° C. to about 400° C. Even at such low melting temperatures, the present inventors have surprisingly discovered that the ratio of the deflection temperature under load (“DTUL”), a measure of short term heat resistance, to the melting temperature may remain relatively high. The specific DTUL values may range from about 200° C. to about 300° C. The ability to form a polymer composition with the properties noted above may be achieved, at least in part, by the use of an aromatic amide oligomer.Type: GrantFiled: August 27, 2012Date of Patent: December 9, 2014Assignee: Ticona LLCInventors: Steven D. Gray, Kamlesh P. Nair, Joseph J. Grenci
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Patent number: 8883279Abstract: Fluid-assisted injection molding articles and processes for producing the articles are described. In one embodiment, a fluid-assisted injection molded article is formed from a polymeric composition containing a polyethylene terephthalate homopolymer in combination with a polyethylene terephthalate copolymer. The polyethylene terephthalate copolymer may comprise a copolymer of polyethylene terephthalate with isophthalic acid. The polymeric composition can also contain a reinforcing agent, such as glass fibers. Products made in accordance with the present disclosure have shown dramatically improved surface characteristics. In particular, pitting on the surface of the molded article is minimized.Type: GrantFiled: September 30, 2010Date of Patent: November 11, 2014Assignee: Ticona LLCInventor: Kenneth Leon Price
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Publication number: 20140309354Abstract: Thermoplastic compositions that incorporate a polyarylene sulfide and exhibit reduced volatility are described. Methods for forming the thermoplastic composition are also described as are products that can incorporate the compositions. A formation method can include melt processing the composition and incorporating a molecular sieve in the composition downstream of the addition point for the polyarylene sulfide as well as downstream of additives that could interact with the molecular sieve such as coupling agents.Type: ApplicationFiled: April 4, 2014Publication date: October 16, 2014Applicant: Ticona LLCInventors: Ke Feng, Paul Yung
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Patent number: 8859089Abstract: A hollow lineal profile (16) formed from a continuous fiber reinforced ribbon (“CFRT”) that contains a plurality of continuous fibers embedded within a first thermoplastic polymer matrix (6). To enhance the tensile strength of the profile, the continuous fibers are aligned within the ribbon in a substantially longitudinal direction (e.g., the direction of pultrusion). In addition to continuous fibers, the hollow profile of the present invention also contains a plurality of long fibers that may be optionally embedded within a second thermoplastic matrix to form a long fiber reinforced thermoplastic (“LFRT”) (4). The long fibers may be incorporated into the continuous fiber ribbon or formed as a separate layer of the profile. Regardless, at least a portion of the long fibers are oriented at an angle (e.g., 90°) to the longitudinal direction to provide increased transverse strength to the profile.Type: GrantFiled: June 22, 2011Date of Patent: October 14, 2014Assignee: Ticona LLCInventors: Sherri M. Nelson, David W. Eastep, Timothy A. Regan
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Publication number: 20140299907Abstract: Polymer compositions are described that are well suited for producing reflectors for light-emitting devices, such as light-emitting diodes. In one embodiment, the polymer composition contains a polymer resin and a stabilizer comprising a phosphonate compound and/or a phosphate compound and optionally a white pigment. The polymer resin may comprise, for instance, a poly(1,4-cyclohexanedimethanol terephthalate). The phosphate stabilizer has been found to significantly improve the stability of the polymer composition without interfering with the ability of the composition to bond to other polymer materials, such as silicone resins. Silicone resins, for instance, are typically used as an encapsulant for light-emitting diode assemblies.Type: ApplicationFiled: April 5, 2012Publication date: October 9, 2014Applicant: Ticona LLCInventor: Bing Lu
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Patent number: 8853342Abstract: A crosslinkable liquid crystalline polymer that is formed by polymerizing a precursor monomer in the presence of an aromatic crosslinking agent is provided.Type: GrantFiled: September 17, 2013Date of Patent: October 7, 2014Assignee: Ticona LLCInventor: Kamlesh P. Nair
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Patent number: 8852730Abstract: A melt-extruded substrate that can be readily thermoformed into a shaped, three-dimensional article is provided. The substrate is formed from a polymer composition that contains a thermotropic liquid crystalline polymer and a unique aromatic amide oligomer. The present inventors have discovered that the oligomer can help increase the “low shear” complex viscosity of the resulting polymer. The ability to achieve enhanced low shear viscosity values can lead to polymer compositions with an increased melt strength, which allows the resulting substrate to better maintain its shape during thermoforming without exhibiting a substantial amount of sag. Due to its relatively high degree of melt strength, the polymer composition is particularly well suited for forming thin extruded substrates for use in thermoforming processes.Type: GrantFiled: August 27, 2012Date of Patent: October 7, 2014Assignee: Ticona LLCInventors: Kamlesh P. Nair, Steven D. Gray, Camilo Cano
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Patent number: 8852487Abstract: A method for injection molding a thermoplastic composition that contains a polyarylene sulfide and a boron-containing nucleating agent is provided. By selectively controlling certain aspects of the polyarylene sulfide and nucleating agent, as well as the particular manner in which they are combined, the crystallization properties of the resulting thermoplastic composition can be significantly improved. This allows the “cooling time” during a molding cycle to be substantially reduced while still achieving the same degree of crystallization. The cooling time can be represented by the “normalized cooling ratio”, which is determined by dividing the total cooling time by the average thickness of the molded part.Type: GrantFiled: December 10, 2012Date of Patent: October 7, 2014Assignee: Ticona LLCInventors: Ke Feng, Peter Radden, Michael Schafer
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Patent number: 8853344Abstract: A film formed from a polymer composition containing one or more thermotropic liquid crystalline polymers is provided. The specific nature of the polymer or blend of polymers is selectively controlled so that the resulting polymer composition possesses both a low viscosity and high melt strength. The present inventor has discovered that this unique combination of thermal properties results in a composition that is both highly melt processible and stretchable, which allows the resulting film to be oriented to a degree greater than previously thought possible.Type: GrantFiled: September 20, 2013Date of Patent: October 7, 2014Assignee: Ticona LLCInventors: Young Shin Kim, Xinyu Zhao
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Patent number: 8840976Abstract: VOC or compressed gas containment devices, such as polymer fuel tanks, are made from a polyoxymethylene polymer composition. The polymer composition contains a polyoxymethylene polymer that is directly or indirectly chemically attached to an impact modifier. In one embodiment, for instance, a coupling agent bonds the impact modifier to the polyoxymethylene polymer. In order to preserve the permeability of the polymer material when combined with the impact modifier, a polyoxymethylene polymer is used that contains a low level of low molecular weight constituents.Type: GrantFiled: October 14, 2010Date of Patent: September 23, 2014Assignee: Ticona LLCInventors: Lowell Larson, Ursula Ziegler, Christopher McGrady
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Publication number: 20140272365Abstract: A liquid crystalline polymer composition that contains a conductive filler (e.g., carbon fibers, ionic liquid, etc.) and a plurality of mineral fibers distributed within a liquid crystalline polymer matrix is provided. Through careful selection of the conductive filler and mineral fibers, as well as the manner in which they are dispersed within the polymer matrix, the present inventors have discovered that a composition can be formed that has a reduced tendency to create a static electric charge during a molding operation, but yet also has good surface characteristics and mechanical properties.Type: ApplicationFiled: October 14, 2013Publication date: September 18, 2014Applicant: Ticona LLCInventor: Young Shin Kim
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Publication number: 20140272226Abstract: A compact camera module that contains a generally planar base on which is mounted a lens barrel is provided. The base, barrel, or both are molded from a polymer composition that includes a thermotropic liquid crystalline polymer and a plurality of mineral fibers (also known as “whisker”). The mineral fibers have a median width of from about 1 to about 35 micrometers and constitute from about 5 wt % to about 60 wt. % of the polymer composition.Type: ApplicationFiled: October 14, 2013Publication date: September 18, 2014Applicant: Ticona LLCInventor: Young Shin Kim
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Publication number: 20140264183Abstract: A compact camera module that contains a generally planar base on which is mounted a lens barrel is provided. The base, barrel, or both are molded from a polymer composition that includes a thermotropic liquid crystalline polymer and a plurality of mineral fibers (also known as “whisker”). The mineral fibers have a median width of from about 1 to about 35 micrometers and constitute from about 5 wt % to about 60 wt % of the polymer composition.Type: ApplicationFiled: October 14, 2013Publication date: September 18, 2014Applicant: Ticona LLCInventor: Young Shin Kim
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Patent number: 8822628Abstract: A crosslinkable liquid crystalline polymer that is formed by polymerizing a precursor monomer in the presence of an aromatic crosslinking agent is provided.Type: GrantFiled: September 17, 2013Date of Patent: September 2, 2014Assignee: Ticona LLCInventors: Kamlesh P. Nair, Young Shin Kim
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Publication number: 20140242385Abstract: A fiber formed from a polymer composition that comprises a liquid crystalline polymer and an aromatic amide oligomer is provided. The present inventors have discovered that the oligomer can act as a flow aid for the polymer, which can provide a variety of different benefits. For example, the use of the oligomer during polymerization can lower the melt viscosity of the polymer as it is formed. This enables the formation of high molecular weight polymers that do not solidify within the reactor vessel. The formation of high molecular weight polymers during melt polymerization can, in turn, provide a variety of benefits, such as allowing for higher molecular weight polymers to be formed through additional processing (e.g., solid state polymerization) than conventionally possible, as well as enhancing the melt strength of the polymer composition and thereby aiding in the fiber formation process.Type: ApplicationFiled: February 19, 2014Publication date: August 28, 2014Applicant: Ticona LLCInventors: Kamlesh P. Nair, Joseph J. Grenci, Steven D. Gray
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Publication number: 20140243485Abstract: A polymer composition that contains at least one high performance polymer and at least one aromatic amide oligomer is provided. The oligomer can serve as a flow aid that lowers the overall viscosity of the polymer matrix under shear.Type: ApplicationFiled: February 19, 2014Publication date: August 28, 2014Applicant: Ticona LLCInventors: Kamlesh P. Nair, Joseph J. Grenci, Xinyu Zhao
