Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-07-07
1977-12-27
Anderson, Harold D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106163R, 106203, 106210, 106213, 252316, 252317, 260 17R, 260 18EP, 260 18N, 260 292EP, 260 292N, 260 293, 260 296R, 260 296ME, 260 296NR, 260 296WA, 260 296F, 260 296BE, 260 312R, 260 314R, 260 328R, 260 334R, 260 336UA, 260 47EP, 260 75T, 260830R, 260830TW, C08L 100, C08L 3104, C08L 6302, C08L 7700
Patent
active
040654176
ABSTRACT:
An improved method of coating fibers and particularly glass fibers with a solution of materials containing a reversible shear thinning gel producing agent which causes the coating to be transformed into a shear thinning gel under predetermined conditions. The predetermined conditions may be brought about after the coated fibers are brought together into touching engagement in a package, or may be caused to occur before the coated fibers are brought together in touching engagement in the package. The fibers can be removed from the package and still retain a coating on the fibers, since the shearing action of the fibers through the gel converts the gel to a liquid which adheres to the fibers as they are being pulled through the gel. The predetermined conditions may involve a change in temperature, or a change in concentration of solids. The change in temperature will usually be a cooling of the coating materials to a temperature below the gelation point, and the change in concentration will usually be an evaporation of solvent to form at least a skin of gel on the surface of the coating materials. The change in temperature technique can be used to increase the amount of solids that is applied to the fibers. The uncoated fibers, however, are preferably drawn through the gel to subject the reversible shear thinning gel to shear which causes the materials to flow around and adhere to the fibers, following which the coating reverts to a gel.
REFERENCES:
patent: 3200085 (1965-08-01), Guglielmo
patent: 3405087 (1968-10-01), Fryd
patent: 3438903 (1969-04-01), Prahl
patent: 3463749 (1969-08-01), Taft
Hill Homer G.
Wong Robert
Anderson Harold D.
Cloutier Philip R.
Owens-Corning Fiberglas Corporation
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