Polyurethane laminate of contrasting layers and process therefor

Details Polyurethane laminate of contrasting layers and process therefor Polyurethane laminate of contrasting layers and process therefor

1983-06-09

1986-01-21

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

427402, 428207, 4284233, 428911, 528 83, B32B 2720, B32B 2740

Patent

active

045657297

ABSTRACT:
A plurality of polyurethane layers, some of which have a contrasting color with respect to an adjacent layer is formed into a laminate. During preparation, each layer is separately formed, as by spraying, and the contrasting color ensures that the preceding layer can be fully covered. The laminate can be utilized to cover areas or objects which are otherwise difficult to ensure that it has a continuous or complete coating. The invention is suitable for use as a coating and for the preparation of various in situ articles or enclosures, for example a fuel tank, such as commercial and military aircraft.

REFERENCES:
patent: 2286964 (1969-01-01), Hucks
patent: 3968316 (1976-07-01), Jyo et al.
patent: 4125662 (1978-11-01), Weiner et al.
patent: 4247678 (1981-01-01), Chung
patent: 4331491 (1982-05-01), Shaw et al.

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