Vertical blind louver having transparent grooved side edges

Details Vertical blind louver having transparent grooved side edges Vertical blind louver having transparent grooved side edges

1988-09-23

1989-12-05

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Strip or slat structure

E06B 936

Patent

active

048846163

ABSTRACT:
A slat, suitable for use as a vertical blind louver, having an upper and lower surface, having an opaque central section composed of a first chemical composition having a first melt temperature, and having transparent first and second side edges composed of a second chemical composition having a second melt temperature substantially greater than the first melt temperature, wherein the side edges are integrally fused to the central section, each side edge contains a longitudinal groove open to the central section, and the grooves open to the same surface of the slat. In a preferred embodiment the first composition is a polyvinylchloride and the second composition is a polycarbonate having a melt temperature which is 100.degree. to 150.degree. F. higher than the polyvinylchloride melt temperature. Novel extrusion dies for forming the slat are also disclosed.

REFERENCES:
patent: 4628980 (1986-12-01), LeHouillier

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