Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1991-09-13
1993-02-23
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
118411, 26421111, 264217, 425462, 427128, 427131, 427284, 427420, B29C 4706
Patent
active
051887894
ABSTRACT:
A support for a silver halide photographic material is described as being produced by a process including co-extruding plural dope liquids through a co-flow-extending die having plural manifolds, wherein slits having a comb-like cross section connect at least one of the manifolds to a liquid joining portion of the die. The photographic support can have a magnetic recording layer exhibiting excellent magnetic recording and reproducing characteristics and having excellent flatness.
REFERENCES:
patent: 3032008 (1962-05-01), Land et al.
patent: 4297396 (1981-10-01), Takehara et al.
patent: 4324816 (1982-04-01), Landis et al.
patent: 4469782 (1984-09-01), Ishiwata et al.
patent: 4592885 (1986-06-01), Ichino et al.
Fuji Photo Film Co. , Ltd.
Thurlow Jeffery
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