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US 4,544,586 AGranted
Laminar structure of polyester
AssigneeGeneral Electric Company
InventorRichard E. Molari, Jr.
Life of this patent
Estimating the term…
Abstract
Laminar structures useful as road signs, markers, informational signs and the like comprised of: (i) a modified thermoplastic polyester core structure; and (ii) a front light reflective layer disposed on and laminated to said core structure.
Claims11
An improved light reflecting sign comprising in combination:
- (i) a core structure having a front face, and
- (ii) a front visible light reflecting layer disposed on the front face of said core structure and bonded thereto by means of a suitable adhesive;
- the improvement comprising said core structure being comprised of at least one ply containing an impact modified thermoplastic polyester composition comprised of at least one thermoplastic polyester resin selected from
- (a) a poly(1,4-butylene terephthalate) resin,
- (b) a blend of poly(1, 4-butylene terephthalate) resin and a poly(ethylene terephthlate) resin,
- (c) a block copolyester of poly(1,4-butylene terephthalate) and an aromatic/aliphatic polyester,
- (d) a blend of (c) and a poly(1,4-butylene terephthalate) resin, and
- (e) a blend of (c) and a poly(ethylene terephthalate) resin.
5 more elements
Dependencies are inferred from the claim text.