Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2007-03-13
2007-03-13
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C474S237000, C474S266000
Reexamination Certificate
active
10494308
ABSTRACT:
This invention has an object of enhancing the cold resistance of a heavy duty power transmission V-belt without impairing its durability at high temperatures, ensuring its sufficient power transmission capability and concurrently enhancing its permanent set resistance. To attain the object, the invention employs, for a rubber element of the belt, a rubber composition in which 20 to 40 parts by weight of a metal salt monomer of an organic acid and 5 to 35 parts by weight of short fibers are mixed into 100 parts by weight of a rubber component composed of EPDM and HNBR in their ratio of 55/45 to 75/25, the rubber hardness measured with a durometer Type D is 40 to 60, the value of t5given by a Gehman torsion test is −50° C. to −35° C., and the amount of acetone extract from the rubber component is 9% or less.
REFERENCES:
patent: 5248730 (1993-09-01), Yamao
patent: 5610217 (1997-03-01), Yarnell et al.
patent: 1 300 442 (2003-04-01), None
patent: 2-36246 (1990-02-01), None
patent: 4-279645 (1992-10-01), None
patent: 05-017635 (1993-01-01), None
patent: 5-271475 (1993-10-01), None
patent: 5-272595 (1993-10-01), None
patent: 9-176402 (1997-07-01), None
patent: 2000-26674 (2000-01-01), None
patent: 2002-013594 (2000-01-01), None
patent: 2001-310951 (2001-11-01), None
patent: 2001-330083 (2001-11-01), None
patent: WO 97/22662 (1997-06-01), None
patent: WO 97/22663 (1997-06-01), None
Office Action mailed Sep. 29, 2005 in corresponding German Patent Application No. 103 92 190.7-43 (with full English translation).
Notice of Reasons for Rejectiondated Jan. 10, 2006 in corresponding Japanese Patent Application No. 2002-121201 with English translation.
Rubber Technology Guidebook, 9thEdition, pp. 181, 182 and 193, Feb. 10, 1980, Masayuki Furuya et al., with partial English Translation.
PCT/JP03/05218/International Search Report/Jun. 24, 2003.
Bando Chemical Industries Ltd.
Nixon & Peabody LLP
Raza Saira B.
Seidleck James J.
Studebaker Donald R.
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