Durable edge ceiling board

Details Durable edge ceiling board Durable edge ceiling board

1998-04-17

2000-06-20

Krynski, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

428195, 428206, 428210, 428217, 428339, 428340, 428413, 428480, B32B 2302

Patent

active

060775939

ABSTRACT:
This invention provides a ceiling board having a durable edge portion. The durable edge portion is obtained by applying a latex composition to the edge portion. The latex composition includes a binder and filler particles of two particle size ranges. The first filler particles have a median diameter of about 0.5 micron to about 5 microns. The second filler particles have a median diameter of about 20 microns to about 300 microns. The ratio of first filler particles to second filler particles is about 2:1 to about 1:8 by weight. The binder is preferably an epoxy, a urethane, a polyester, an acrylic, a melamine, or a vinyl based polymer latex. The binder preferably has a Tg of at least 10.degree. C., and the ratio of filler to binder is about 2:1 to about 12:1 by weight.

REFERENCES:
patent: 3404134 (1968-10-01), Rees
patent: 3940528 (1976-02-01), Roberts
patent: 4010134 (1977-03-01), Braunisch et al.
patent: 4351912 (1982-09-01), Jasperson
patent: 4559377 (1985-12-01), Gleason et al.
patent: 5714200 (1998-02-01), Schlachter et al.
Epoxy Resins Chemistry and Technology, 2.sup.nd edition, 1988.

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