Patent News.

Silica-based aggregates, elastomers reinforced therewith and tire tread thereof U.S. patent: 5,723,529 Issued: March 3, 1998 Inventors: Yvon Andre Bernard, Uwe Ernst Frank, Wolfgang Lauer, Thierry Florent Edme Materne, Friedrich Visel and Rene Jean Zimmer Assigned: Goodyear Tire & Rubber

Blends of a semi-crystalline polymer and elastic [Alpha]-olefin/cyclic olefin copolymers U.S. patent: 5,723,545 Issued: March 3, 1998 Inventors: Brace Allan Harrington, Patrick Brant and Anthony Jay Dias Assigned: Exxon Chemical Patents Inc.

Bulk sulfonation of EPDM rubber U.S. patent: 5,723,550 Issued: March 3, 1998 Inventors: Cruise K. Jones, David B. Acker, Dennis A. Williams, Robert D. Lundberg and Vijay Swamp Assigned: Nalco/Exxon Energy Chemicals, L.P.

Spandex elastomers U.S. patent: 5,723,563 Issued: March 3, 1998 Inventors: Brace D. Lawrey and Stephen D. Seneker Assigned: Arco Chemical Technology

Low profile, flat spring windshield wiper assembly U.S. patent: 5,724,700 Issued: March 10, 1998 Inventor: Joel Steven Marks Assigned: Work Tools, Inc.

Rubber compositions and pneumatic tires using the same US. patent: 5,726,237 Issued: March 10, 1998 Inventors: Hidenori Satoh, Shunji Araki and Franco Cataldo Assigned: Bridgestone Corp

Method of making a shoe sole having co-molded anti-skid insert U.S. patent: 5,725,823 Issued: March 10, 1998 Inventors: Norman H. Finn and Chih-Ming Wu Assigned: AmAsia International Ltd.

Process of bonding aromatic polyamide fibers to rubber compounds U.S. patent: 5,728,245 Issued: March 17, 1998 Inventors: Akinori Fujiwara and Katsuhiko Hata Assigned: Bando Chemical Industries

Heavy duty pneumatic radial tires with deformation-absorbing rubber layer covering turn up portion outer surface U.S. patent: 5,725,702 Issued: March 10, 1998 Inventors: Hiroshi Nakamura, Hiroyuki Iida and Makoto Tsuruta Assigned: Bridgestone Corporation

Tire cure bladders containing polytetrafluoroethylene powder and use thereof U.S. patent: 5,728,311 Issued.: March 17, 1998 Inventors: George Philemon Patitsas, Paul Harry Sandstrom, Samson Samuel Apticar and Bharat Kanchanlal Kansupada Assigned: Goodyear Tire & Rubber

Fluoroelastomer composition with organo-onium and blocked-carbonate compounds U.S. patent: 5,728,773 Issued: March 17, 1998 Inventors: Naiyong Jing and Robert E. Kolb Assigned: Minnesota Mining and Manufacturing Company

Olefin thermoplastic elastomer foamed products and processes for preparing the same U.S. patent: 5,728,744 Issued: March 17, 1998 Inventors: Keiji Okada, Masato Karaiwa and Akira Uchiyama Assigned: Mitsui Petrochemical Industries, Ltd.

Method for recovering carbon black from composites U.S. patent: 5,728,361 Issued: March 17, 1998 Inventor: Carl A. Holley Assigned: Ferro-Tech Tire Reclamation

Zinc salts of citraconamic acid and rubber compounds containing such salts U.S. patent: 5,728,757 Issued: March 17, 1998 Inventors: Richard Michael D'Sidocky, Lawson Gibson Wideman, Bernard Matthew Bezilla, Jr. and Cheng Shaw Assigned: Goodyear Tire & Rubber

Ethylene elastomer compounds having good processability and aging properties U.S. patent: 5,728,766 Issued: March 17, 1998 Inventors: Jean-Roch Hector Schauder and Timothy Arthur Mills Assigned: Exxon Chemical Co.

Heat-resistant high-nitrile polymer compositions and process for preparing same U.S. patent: 5,728,775 Issued: March 17, 1998 Inventors: Hiroaki Narisawa, Masahiro Kaneko, Mitsuo Kawata, Syuichi Yamaguchi, S. Asai and Makoto Someda Assigned: Mitsui Toatsu Chemicals

Sulfur vulcanizable rubber containing sodum thiosulfate pentahydrate U.S. patent: 5,728,778 Issued: March 17, 1998 Inventors: R.M. D'Sidocky, David John Zanzig and Shingo Futamura Assigned: Goodyear Tire & Rubber

Two drum turret for tire assembly U.S. patent: 5,730,829 Issued: March 24, 1998 Inventors: Kenneth Dean Conger and Dean Charles Testa Assigned: Goodyear Tire & Rubber

Thermoplastic elastomeric copolymers used in hair and skin care compositions U.S. patent: 5,730,966 Issued: March 24, 1998 Inventors: Peter Matte Torgerson and Sanjeev Midha Assigned: Procter & Gamble

Snowmobile drive track with noise reducting tread pattern U.S. patent: 5,730,510 Issued: March 24, 1998 Inventor: Denis Courtemanche Assigned: Camoplast Inc.

Reusable, selectively conductive, z-axis, elastomeric composite substrate U.S. patent: 5,731,073 Issued: March 24, 1998 Inventors: Bradley D. Knott, Carmine G. Meola, David L. Murray and Mark Stephen Spencer Assigned: W.L. Gore & Associates

Process for the manufacture of high grade devulcanized robbers from scrap and reject rubber items U.S. patent: 5,731,358 Issued: March 24, 1998 Inventor: Chandrasekaran Ramayya Pillai

Copolymers of polyorganosiloxane, polyisobutylene and alkyl acrylates or methacrylates U.S. patent: 5,731,379 Issued: March 24, 1998 Inventors: Linda Denise Kennan, Peter Yin Kwai Lo, Anil Kumar Saxena and Toshio Suzuki Assigned: Dow Coming Corporation

Tire having good diverse properties U.S. patents: 5,733,393 Issued: March 31, 1998 Inventors: David Ray Hubbell, Marc Christopher Nowacki, John Robert Kullman, Jeffrey Leon Sevart and Piotr Janusz Wesolowski Assigned: Goodyear Tire & Rubber

Wearing surface for fires for winter conditions U.S. patent: 5,733,650 Issued: March 31, 1998 Inventor: Erling Christensen

Silica reinforced rubber composition and tire with tread thereof U.S. patent: 5,733,963 Issued: March 31, 1998 Inventors: Paul Harry Sandstrom and Lawson Gibson Wideman Assigned: Goodyear Tire & Rubber