Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate
2006-09-19
2006-09-19
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
C264S211150, C264S211170, C264S237000
Reexamination Certificate
active
07108818
ABSTRACT:
A spun polyester fiber, a drawn polyester yarn, and methods for making them. Polyethylene terephthalate yarn is prepared by extruding a molten melt-spinnable polyethylene terephthalate having an intrinsic viscosity of at least about 0.8 through a shaped extrusion orifice having a plurality of openings to form a molten spun yarn; solidifying gradually said molten spun yarn by passing said molten spun yarn through a solidification zone which comprises (i) a retarded cooling zone and (ii) a cooling zone adjacent said retarded cooling zone where, in said cooling zone, said yarn is rapidly cooled and solidified in a gaseous atmosphere; withdrawing at sufficient speed said solidified yarn from said solidification zone to form a crystalline partially oriented yarn; and hot drawing said crystalline partially oriented yarn at a total draw ratio between about 1.5/1 and about 2.5/1 to produce a drawn yarn having an effective crosslink density (N) between about 10×1021and about 20×1021crosslinks per cubic centimeter. The yarns and fibers so prepared may be used to make treated tire cord having high tenacity in combination with improved dimensional stability.
REFERENCES:
patent: 3690362 (1972-09-01), Mago et al.
patent: 4101525 (1978-07-01), Davis et al.
patent: 4195052 (1980-03-01), Davis et al.
patent: 4251481 (1981-02-01), Hamlyn
patent: 4414169 (1983-11-01), McClary
patent: 4491657 (1985-01-01), Saito et al.
patent: 4690866 (1987-09-01), Kumakawa et al.
patent: 4827999 (1989-05-01), Yabuki et al.
patent: 4867936 (1989-09-01), Buyalos et al.
patent: 4975326 (1990-12-01), Buyalos et al.
patent: 5132067 (1992-07-01), Nelson et al.
patent: 5234764 (1993-08-01), Nelson et al.
patent: 5350632 (1994-09-01), Lang
patent: 5630976 (1997-05-01), Nelson et al.
patent: 6403006 (2002-06-01), Nelson et al.
patent: 0080906 (1983-06-01), None
patent: 089912 (1983-09-01), None
patent: 0169415 (1988-10-01), None
patent: 35-3104 (1960-04-01), None
patent: 46-28979 (1971-08-01), None
patent: 51-96521 (1976-08-01), None
patent: 58-203112 (1983-11-01), None
patent: 59-116414 (1984-07-01), None
patent: 19812-1986 (1986-01-01), None
“A Study of Structural Development in the High SpeedSpinning of Poly(ethylene Terephthalate)” by H.H. George, A. Holt, and A. Buckley; Polymer Engineering & Science Mid-Feb., 1983, vol. 23, No. 2, pp. 95-99.
“High Speed Spinning of Polyethylene Terephthalate (PETP) by Pneumatic Take-up. Physical and Mechanical Properties of Filaments” by G. Perez and C. Lecluse, International Chemifasertagung in Dornbirn Conference, Jun. 20-22, 1979, conference pp. 1-37.
International Search Report of PCT/US 89/02781.
Opposition Statement by Rhone-Poulenc, dated Feb. 22, 1993 against European Patent 423,123.
Opposition Statement by Hoechst dated Feb. 26, 1993 against European Patent 423,123.
Decision of European Technical Board of Appeal Maintaining European Patent 423,123 Dated Sep. 23, 1999.
Minutes of European Oral Proceedings dated Apr. 19, 1995 regarding European Patent 423,123.
Korean Patent Invalidation Trial Brief filed Oct. 8, 1998 by Korean Chemical Fiber Association.
Measurements and Analyses of Fibers by Ro-Soo Kim et al. dated 1990.
Korea Science Promotion Foundation Translation Series 53 Physical Polymer Science dated Mar. 1996.
Korean Industry Property Tribunal Decision dated Nov. 30, 1999.
After Appeal, First Korean Brief filed Apr. 21, 2000 by AlliedSignal Inc.
J. Shimizu et al., “High Speed (Melt) Spinning of Polyethylene Terephthalate Fibers and The Effect of Molecular Weight”, Seni Gakkaishi V 34 (1978).
G. W. Davis et al., “Polyester Fibers: Variants”, Fiber Producer, pp. 45-62 (Jun. 1984).
A. Roos, “Melt Spinning of PET Industrial Fibers”, Fiber Formation Symposium, ACS Meeting, Toronto, Canada (Jun. 5-10, 1988).
Richard Dean, “New Polyester Tire Cord Developments”, Polyester Textile, Shirley Pub S51(1988).
Japanese Opposition Statement filed by Korean Synthetic Fiber Association dated Dec. 27, 1999 against Japanese Patent 2914385.
Peter B. Rim, et al., “Dimensionally Stable PET Fibers for Tire Reinforcement”, Rubber World, vol. 204, No. 2, May 1991, pp. 30-37.
P.B. Rim, et al. “Properties of PET Fibres with High Modulus and Low Shrinkage (HMLS) Part II: Treated-Cord Properties”, J. Text. Instr., vol. 83, No. 1, 1992, pp. 78-92.
Peter B. Rim, et al., “Dimensionally Stable PET Tire Cord Fibers”, Presented at the Rubber Division, American Chemical Society, May 21-24, 1991, Paper No. 94 (31 pages).
Public Version of Order No. 61 by Judge Terrill, Order No. 61: Initial Determination Granting in Part and Denying in Part Respondents' Motion for Summary Determination of Non-Infringement and Invalidity of U.S. Patent 5,630,976, Inv. No. 337-TA-457, Feb. 4, 2002.
Public Version of the Commission Opinion, by the International Trade Commission, Inv. No. 337-TA-457.
Bheda Jayendra Hiralal
Nelson Charles Jay
Rim Peter Bryan
Turner James Michael
Butler Patrick
Colaianni Michael P.
Morgan & Lewis & Bockius, LLP
Performance Fibers, Inc.
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