Claims
- 1. A method of making a fire resistant and antistatic film comprising the steps of:
- (a) providing a substrate film material;
- (b) preparing a flame retardant antistatic coating by mixing a radiation curable halogenated prepolymer with an effective amount of a quaternary ammonium antistatic compound and an effective amount of an antimony pentoxide fire retardant compound;
- (c) applying said coating to said film material; and
- (d) contacting said coating with electron radiation in an amount sufficient to cure said coating.
- 2. The method of making a fire resistant and antistatic film of claim 1 wherein said antimony pentoxide fire retardant compound further comprises a colloidal dispersion of an antimony pentoxide in a suitable resin vehicle.
- 3. The method of making a fire resistant and antistatic film of claim 2 wherein said resin vehicle is a polyester resin.
- 4. The method of making a fire resistant and antistatic film of claim 3 wherein said colloidal dispersion comprises about 40 parts of said antimony pentoxide in about 60 parts of said polyester resin vehicle.
- 5. The method of making a fire resistant and antistatic film according to claim 2 wherein said antimony pentoxide is particulate in form having a particle size in the range of from about 0.015 microns to about 0.030 microns.
- 6. The method of making a fire resistant and antistatic film according to claim 2 wherein said chlorinated oligomer is a diallyl chlorendate and said brominated oligomer is a diacrylate ester of the diglycidyl ether of tetrabromo bis-phenol A.
- 7. The method of making a fire resistant and antistatic film according to claim 1 wherein said prepolymer is selected from the group of chlorinated oligomer, a brominated oligomer and mixtures thereof.
- 8. The method of making a fire resistant and antistatic film according to claim 1 wherein said prepolymer further comprises the mixture of a chlorinated oligomer and a brominated oligomer.
Parent Case Info
This is a division of U.S. patent application Ser. No. 187,847, filed Apr. 29, 1988, U.S. Pat. No. 4,933,233, entitled "Fire Retardant Film".
Divisions (1)
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Number |
Date |
Country |
Parent |
187847 |
Apr 1988 |
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