Retroreflective sheet material

Details Retroreflective sheet material Retroreflective sheet material

1973-08-01

1976-01-20

Kendall, Ralph S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

40135, 350105, 350109, 428256, 428245, 428402, B44F 100

Patent

active

039340651

ABSTRACT:
A new retroreflective sheet material is taught that comprises a light-transmissive retroreflective open web of filaments that are individually encased by a monolayer of minute retroreflective microspheres, the web being ensheathed within an envelope that comprises two overlaid sheets joined together around the edge of the envelope, at least one of the sheets being transparent.

REFERENCES:
patent: 2586017 (1952-02-01), Freedman
patent: 2624967 (1953-01-01), Phillipi
patent: 2937668 (1960-05-01), Carey, Jr. et al.
patent: 2957444 (1960-10-01), Boettler
patent: 3042561 (1962-07-01), Iwashita
patent: 3297461 (1967-01-01), Siddall
patent: 3790431 (1974-02-01), Tung

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