Delamination-resistant cellular retroreflective sheeting

Details Delamination-resistant cellular retroreflective sheeting Delamination-resistant cellular retroreflective sheeting

1985-05-01

1987-01-20

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428325, 428172, 428910, 428913, 350102, 350103, 350105, B32B 328, G02B 5122

Patent

active

046379509

ABSTRACT:
Cellular retroreflective sheeting, which comprises a base sheet of retroreflective elements and a polymeric cover film disposed in space relation from the base sheet by a network of narrow intersecting bonds that form hermetically sealed cells. The cover layer comprises a continuous polymeric phase and discontinuous polymeric phase and is biaxially oriented such that the discontinuous polymeric phase forms minute disks distributed throughout the film.

REFERENCES:
patent: 3190178 (1965-06-01), McKenzie
patent: 3562235 (1971-02-01), Ryan
patent: 3700305 (1972-10-01), Bingham
patent: 3793402 (1974-02-01), Owens
patent: 3808180 (1974-04-01), Owens
patent: 4025159 (1977-05-01), McGrath
patent: 4075049 (1978-02-01), Wood
patent: 4173600 (1979-11-01), Kishida et al.
European Application 84.306,198.7-2205, Published Apr. 17, 1985, Pub. No. 0137736.

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