Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2005-05-24
2005-05-24
Cameron, Erma (Department: 1762)
Coating processes
With post-treatment of coating or coating material
Heating or drying
C427S412000
Reexamination Certificate
active
06896930
ABSTRACT:
There is provided a method for manufacturing a polyester fiber cord for reinforcing rubber materials that has an excellent adhesive property to rubber materials, and maintains a good adhesive property even after exposed to high temperatures in a state being compounded with rubber materials. Said method is characterized in that a first aqueous processing liquid comprising a blocked polyisocyanate compound is applied to a polyester fiber that has been beforehand provided with an epoxy compound during a yarn manufacturing process or in a state of a twisted cord in an amount of 0.5 to 5.0% based on the fiber weight in terms of solids of the blocked isocyanate compound; the treated yarn is dried at a yarn temperature of ≧(A+20)° C., wherein A° C. is a dissociation temperature of the blocked isocyanate, and then subjected to heat treatment; and a second processing liquid comprising resorcin-formalin-rubber latex is applied to the yarn, followed by heat treatment.
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Cameron Erma
Morrison & Foerster / LLP
Toyo Boseki Kabushiki Kaisha
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