Claims
- 1. A method for manufacturing a fiberglass mat in which fiberized glass filaments are bonded together by a heat curable binder and the mat is subsequentially and sequentially passed through a heating zone to cure the binder, a cooling zone including an entrance and means for drawing air through the mat to cool the mat and then through a cutting zone wherein the mat is cut into bats of a predetermined width, the improvement comprising:
- spraying an effective amount of a liquid anti-static composition in atomized form onto the surface of said mat near the entrance of the cooling zone whereby the air drawn through said mat in the cooling zone assists in causing said anti-static composition to penetrate through substantially the entire thickness of said mat.
- 2. A method according to claim 1 wherein the amount of said anti-static composition sprayed onto the surface of said mat is equivalent to at least about 25 parts of said anti-static agent per million parts of said mat.
- 3. A method according to claim 2 wherein the amount of said anti-static composition sprayed onto the surface of said mat is equivalent to about 150 to about 1000 parts of said anti-static agent per million parts of said mat.
- 4. A method according to claim 1 wherein said anti-static composition comprises
- an aqueous solution containing, based on the total weight of said composition, about 2 to about 50 weight % of an active anti-static agent, said active anti-static agent including, based on the total weight of said active anti-static agent,
- about 90 to about 97 weight % of a first water soluble quaternary ammonium compound having the general formula ##STR4## wherein R.sub.1 is a substituted or unsubstituted aliphatic or cyclic group containing 8 to 15 C atoms,
- R.sub.2, R.sub.3 or R.sub.4 is an aliphatic group containing 1 or 2 carbon atoms, and
- X is an inorganic anion;
- about 1 to about 5 weight % of a second water soluble quaternary ammonium compound having the general formula ##STR5## ##STR6## wherein R.sub.5 is a substituted or unsubstituted aliphatic or cyclic group containing 16 to 24 C atoms,
- R.sub.6, R.sub.7 and R.sub.8 is a substituted or unsubstituted aliphatic group containing 1 or 2 C atoms, and
- Y is nitrate or nitrite; and
- about 1 to about 5 weight % of a glycol having humectant properties.
- 5. A method according to claim 4 wherein said anti-static composition includes a sufficient amount of an inorganic acid to adjust the pH of said composition within the range of about 5 to about 7.
- 6. A method according to claim 4 wherein the amount of said anti-static composition sprayed onto the surface of said mat is equivalent to at least about 25 parts of said anti-static agent per million parts of said mat.
- 7. A method according to claim 6 wherein amount of said anti-static composition sprayed onto the surface of said mat is equivalent to about 150 to about 1,000 parts of said anti-static agent per million parts of said mat.
- 8. A method according to claim 4 wherein said glycol is propylene glycol.
- 9. A method according to claim 8 wherein X is Chloride or bromide and Y is nitrate.
- 10. A method according to claim 9 wherein said first quaternary ammonium compound is cocotrimethyl ammonium chloride and said second quaternary ammonium compound is stearamidopropyl dimethyl-.beta.-hydroxyethyl ammonium nitrate.
- 11. An anti-static composition comprising an
- aqueous solution containing, based on the total weight of said composition, about 2 to about 50 weight % of an active anti-static agent active said anti-static agent including, based on the total weight of said active anti-static agent,
- about 90 to about 97 weight % of a first water soluble quaternary ammonium compound having the general formula ##STR7## wherein R.sub.1 is a substituted or unsubstituted aliphatic or cyclic group containing 8 to 15 C atoms,
- R.sub.2, R.sub.3 and R.sub.4 is an aliphatic group containing 1 or 2 carbon atoms, and
- X is an inorganic anion;
- about 1 to about 5 weight % of a second water soluble quaternary ammonium compound having the general formula ##STR8## wherein R.sub.5 is a substituted or unsubstituted aliphatic or cyclic group containing 16 to 24 C atoms,
- R.sub.6, R.sub.7 and R.sub.8 is a substituted or unsubstituted aliphatic group containing 1 or 2 C atoms, and
- Y is nitrate or nitrite; and
- about 1 to about 5 weight % of a glycol having humectant properties.
- 12. An anti-static composition according to claim 11 including a sufficient amount of a compatible dye to impart a discernible coloration to said composition.
- 13. An anti-static composition according to claim 11 including a sufficient amount of a non-corrosive acid to adjust the pH within the range of about 5 to about 7.
- 14. An anti-static composition according to claim 13 wherein said acid is sulfuric acid.
- 15. An anti-static composition according to claim 11 wherein R.sub.1 is a branched or straight chained aliphatic group.
- 16. An anti-static composition according to claim 15 wherein R.sub.1 is a saturated alkyl group.
- 17. An anti-static composition according to claim 11 wherein R.sub.5 is a branched or straight chained group.
- 18. An anti-static composition according to claim 17 wherein at least one of said R.sub.1 and R.sub.5 groups include at least one substituent selected from the group consisting of ##STR9##
- 19. An anti-static composition according to claim 11 wherein X is chloride, bromide, fluoride, iodide, nitrate, sulfate or phosphate.
- 20. An anti-static composition according to claim 19 wherein X is chloride or bromide.
- 21. An anti-static composition according to claim 11 wherein said glycol is propylene glycol.
- 22. An anti-static composition according to claim 11 wherein said first quaternary ammonium compound is cocotrimethyl ammonium chloride and said second quaternary ammonium compound is stearamidopropyl dimethyl-.beta.-hydroxyethyl ammonium nitrate.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of Ser. No. 090,776, filed Aug. 28, 1987 now abandoned.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
90776 |
Aug 1987 |
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