Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1983-04-29
1984-09-25
Czaja, Donald E.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
2642893, 425 90, 427176, 4273899, B29G 500
Patent
active
044735219
ABSTRACT:
A method and apparatus for making a polymeric coated fabric layer is provided, the method comprising the steps of providing a fabric layer having warps and fills initially woven at a certain angle relative to each other, then changing the certain angle to another angle by stretching the fabric layer in one direction thereof whereby the fabric layer is in an altered condition thereof, disposing a liquid polymeric coating on at least one side of the fabric layer while the same is in the altered condition, doctoring the coating, further stretching the fabric layer in the one direction after the step of disposing the coating thereon, and drying the coating with a heating unit to at least a degree thereof that will hold the fabric layer in substantially the altered condition thereof, the step of doctoring the coating taking place after the step of further stretching the fabric layer and the step of further stretching the fabric layer taking place after the heating unit has dried the coating to at least a degree thereof that the further stretching of the fabric layer causes an outward thickening of the coating on the one side of the fabric layer.
REFERENCES:
patent: 1975195 (1934-10-01), Dennison
patent: 3723438 (1973-03-01), Fairbanks
patent: 3784427 (1974-01-01), Griffin
patent: 3844813 (1974-10-01), Leonard et al.
patent: 4062989 (1977-12-01), Long
Czaja Donald E.
Dayco Corporation
Tassone Joseph V.
Thompson Willie
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