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US 5,719,092 AGranted
Fiber/polymer composite for use as a photographic support
AssigneeEastman Kodak Company
InventorEric Eugene Arrington
Life of this patent
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Abstract
The present invention is a polymer/fiber matrix used as a photographic support. The fibers are of a specific glass composition and the polymer can be polyethylene, polypropylene, polystyrene, polybutylene and copolymers thereof. The matrix preferably includes between 1% and 79% fibers with the fibers having a diameter of between 0.001 mm and 0.01 mm.
Claims13
A photographic support comprising:
- a polymer/fiber matrix including:
- a thermoplastic polymer;
- continuous glass fibers having a diameter of from 0.001 mm to 0.01 mm comprising:
- from about 52% to about 65% SiO.sub.2 ;
- from about 12% to about 25% Al.sub.2 O.sub.3 ;
- from about 16% to about 25% CaO;
- from about 0% to about 10% MgO;
- from about 8% to about 13% B.sub.2 O.sub.3 ;
- from about 0% to about 3% Na.sub.2 O;
- from about 0% to about 12% TiO.sub.2 ;
- from about 0% to about 0.4% FeO.sub.3 ;
- from about 0% to about 0.5% Fe.sub.2 ;
- and
- a sizing agent.
11 more elements
Dependencies are inferred from the claim text.