Foster, Frank H.Kremblas, Foster, Phillips & Pollick
인용정보
피인용 횟수 :
2인용 특허 :
5
초록▼
A method for manufacturing a tire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre-coat, consisting
A method for manufacturing a tire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of limestone and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Fibers such as ground cardboard, wood mulch, sawdust, and fiberglass fibers are examples of materials with electrostatically positively charged fibers.
대표청구항▼
1. A method for manufacturing fire retardant cellulosic insulation comprising shredded cellulosic fibers and paper pieces coated with a mixture of limestone and an antistat and having a fire retardant agent deposited on it, wherein the improvement comprises: (a) adding electrostatically, positive
1. A method for manufacturing fire retardant cellulosic insulation comprising shredded cellulosic fibers and paper pieces coated with a mixture of limestone and an antistat and having a fire retardant agent deposited on it, wherein the improvement comprises: (a) adding electrostatically, positively charged fibers and grinding the fibers, paper pieces and electrostatically, positively charged fibers after adding the electrostatically, positively charged fibers; and (b) coating the fibers paper pieces with substantially 0.001% to 0.01% by weight antistat based on the weight of cellulosic fibers, paper pieces and electrostatically, positively charged fibers. 2. A method in accordance with claim 1, wherein the electrostatically, positively charged fibers are added in the amount of substantially 2% to 8% of the weight of the cellulosic fibers, paper pieces and electrostatically, positively charged fibers. 3. A method in accordance with claim 1, wherein the electrostatically, positively charged fibers are fiberglass and are added substantially in the amount of 0.5% to 2% of the weight of cellulosic fiber, paper pieces and electrostatically, positively charged fibers. 4. A method in accordance with claim 1 or claim 2 wherein the added electrostatically, positively charged fibers comprise wood mulch. 5. A method in accordance with claim 1 or claim 2 wherein the added electrostatically, positively charged fibers comprise ground cardboard. 6. A method in accordance with claim 1 or claim 2 wherein the added electrostatically, positively charged fibers comprise sawdust. 7. An improved cellulosic insulation having reduced density and settling and comprising: (a) shredded cellulosic fibers and paper pieces coated with a mixture of limestone and an antistat; (b) electrostatically positively charged fibers which have been ground with said cellulosic fibers to cause electrostatic charging of the electrostatically, positively charged fibers; and (c) fire retardant chemicals which are adhered on said shredded cellulosic fibers, paper pieces and electrostatically, positively charged fibers. 8. An insulation in accordance with claim 7 wherein the antistat is substantially 0.001% to 0.01% by weight based on the weight of the cellulosic fibers, paper pieces and electrostatically, positively charged fibers. 9. An insulation in accordance with claim 8 wherein the paper fibers are electrostatically negative and are angled predominantly from about 15% to perpendicular to the paper pieces. 10. An insulation in accordance with claim 8 wherein the electrostatically, positively charged fibers are in the amount of substantially 2% to 8% of the weight of the cellulosic fibers, paper pieces and electrostatically, positively charged fibers. 11. An insulation in accordance with claim 8 wherein the electrostatically, positively charged fibers comprise ground cardboard. 12. An insulation in accordance wit claim 8 wherein the electrostatically, positively charged fibers comprise wood mulch. 13. An insulation in accordance with claim 8 wherein the electrostatically, positively charged fibers comprise sawdust. 14. An insulation in accordance with claim 11 or claim 12 or claim 13 wherein the electrostatically, positively charged fibers are in the amount of substantially 2% to 8% of the weight of the cellulosic fibers, paper pieces and electrostatically, positively charged fibers. 15. An insulation in accordance with claim 8 wherein the electrostatically, positively charged fibers comprise fiberglass. 16. An insulation in accordance with claim 15 wherein the electrostatically, positively charged fibers are in the amount of substantially 0.5% to 2% of the weight of the cellulosic fibers, paper pieces and electrostatically, positively charged fibers.
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이 특허에 인용된 특허 (5)
Rood Leonard D. (5764 Flintlock La. Columbus OH 43213), Fire retardant insulation.
Gagnon, Gerard A.; Munson, Richard W.; Thompson, Jr., Daniel Harold; Kelly, Michael Thorne; Hupper, Robert A.; Bilodeau, Michael A.; Paradis, Mark A., Method for making fire retardant materials and related products.
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