Winding – tensioning – or guiding – Bobbin or spool – Cop-tube type
Patent
1979-05-29
1980-11-25
Lusignan, Michael R.
Winding, tensioning, or guiding
Bobbin or spool
Cop-tube type
427393, 4284251, 428541, 428537, B65H 7512, B32B 2740, B05D 302
Patent
active
042353920
ABSTRACT:
An improved wood textile bobbin having a single protective wear resistant coating, the coating when applied having the ability to rapidly form a tack free outer surface and cure to a desirable working surface over woods or wood grains that have been previously unusable, wherein the composition for the coating is made up of from about 40 to 65 percent solids consisting of a ricinoleic acid/diphenylmethane diisocyanate prepolymer (MDI) and a moisture activated, blocked, hydroxyl functional acrylic resin, the balance being a solvent in which the solids are dissolved for the purpose of applying the composition to the outer surface of the bobbin substrate.
REFERENCES:
patent: 3577271 (1971-05-01), Bliven et al.
patent: 3664861 (1972-05-01), Okamura et al.
patent: 3681289 (1972-08-01), Kruse et al.
patent: 4006866 (1977-02-01), Webster et al.
patent: 4054690 (1977-10-01), Webster et al.
Lusignan Michael R.
Rockwell International Corporation
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