IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0675453
(2003-09-30)
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발명자
/ 주소 |
- Brown, Donald
- Kaufman, Harvey
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
5 |
초록
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An additive/process aid for polymeric materials such as rubber elastomers comprises a mixture of gray slate flour, corn starch, a liquid polyester resin or an epoxy resin, calcium carbonate and silica gel or a fatty acid. The additive/process aid facilitates the processing and enhances the physical
An additive/process aid for polymeric materials such as rubber elastomers comprises a mixture of gray slate flour, corn starch, a liquid polyester resin or an epoxy resin, calcium carbonate and silica gel or a fatty acid. The additive/process aid facilitates the processing and enhances the physical properties of the rubber elastomer.
대표청구항
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1. An additive for use in making a rubber elastomer, the additive comprising:at least 20% by weight and up to about 29% by weight of gray slate flour;at least 18% by weight and up to about 28% by weight of corn starch;at least 4% by weight and up to about 8% by weight of liquid polyester;at least 10
1. An additive for use in making a rubber elastomer, the additive comprising:at least 20% by weight and up to about 29% by weight of gray slate flour;at least 18% by weight and up to about 28% by weight of corn starch;at least 4% by weight and up to about 8% by weight of liquid polyester;at least 10% by weight and up to about 20% by weight of calcium carbonate; andat least 8% by weight and up to about 15% by weight of silica gel;wherein the aggregate amount of the gray slate flour, cornstarch, liquid polyester, calcium carbonate and silica gel totals 100%; andwherein the additive is combined with a rubber elastomer to create a rubber elastomer composition. 2. The additive of claim 1, wherein the additive comprises about 29% by weight of gray slate flour. 3. The additive of claim 2, wherein the additive comprises about 28% by weight of corn starch. 4. The additive of claim 2, wherein the additive comprises about 8% by weight of liquid polyester. 5. The additive of claim 4, wherein the additive comprises about 20% by weight of calcium carbonate. 6. The additive of claim 5, wherein the additive comprises about 15% by weight of silica gel. 7. The additive of claim 6, wherein the silica gel is in the form of pellets. 8. The additive of claim 6, wherein the silica gel is in the form of powder. 9. The additive of claim 1, wherein the rubber elastomer is selected from the group consisting of natural rubber, isoprene, chloroprene, halo-butyls, SBR rubber, butyl rubber, neoprene, epichlorohydrin rubber, polysulfonated rubber, silicone rubber and mixtures thereof. 10. A method of producing an additive for a rubber elastomer, comprising the steps of:combining about 29% by weight of gray slate flour, about 28% by weight of corn starch, about 8% by weight of liquid polyester, about 20% by weight of calcium carbonate, and about 15% by weight of silica gel;mixing the components together;allowing the components to react to form an additive that increases the tensile strength, and crescent tear of rubber elastomers; andadding the additive to a rubber elastomer. 11. The method of claim 10, wherein the rubber elastomer is selected from the group consisting of natural rubber, isoprene, chloroprene, halo-butyls, SBR rubber, butyl rubber, neoprene, epichlorohydrin rubber, polysulfonated rubber, silicone rubber and mixtures thereof. 12. A rubber elastomer composition comprised of:an additive, wherein the additive comprises;about 29% by weight of gray slate flour, about 28% by weight of cornstarch, about 8% by weight of liquid polyester, about 20% by weight of calcium carbonate, and amount 15% by weight of silica gel; anda rubber elastomer, wherein the rubber elastomer is selected from the group consisting of natural rubber, isoprene, chloroprene, halo-butyls, SBR rubber, butyl rubber, neoprene, epichlorohydrin rubber, polysulfonated rubber, silicone rubber and mixtures thereof. 13. An additive for use in making a rubber elastomer, the additive comprising:from about 10 to about 30% by weight gray slate flour;from about 10 to about 35% by weight corn starch;from about 5 to about 15% by weight epoxidized soybean oil;from about 10 to about 40% by weight calcium carbonate; andfrom about 5 to about 15% by weight of a fatty acid selected from the group consisting of stearic acid and oleic acid;wherein the aggregate amount of the gray slate flour, corn starch, epoxidized soybean oil, calcium carbonate and fatty acid totals 100%; andwherein the additive is combined with a rubber elastomer to create a rubber elastomer composition. 14. The additive of claim 13, wherein the additive comprises about 25% by weight of gray slate flour. 15. The additive of claim 14, wherein the additive comprises about 25% by weight of corn starch. 16. The additive of claim 15, wherein the additive comprises about 5% of epoxidized soybean oil. 17. The additive of claim 13, wherein the additive comprises:from about 20 to about 30% by weight gray slate flour;from about 20 to about 30 % by weight corn starch;from about 5 to about 10% by weight epoxidized soybean oil;from about 20 to about 37% by weight calcium carbonate; andfrom about 8 to about 15% by weight of a fatty acid selected from the group consisting of stearic acid and oleic acid;wherein the aggregate amount of the gray slate flour, corn starch, epoxidized soybean oil, calcium carbonate and fatty acid totals 100%; andwherein the additive is combined with a rubber elastomer to create a rubber elastomer composition. 18. The additive of claim 13, wherein the additive comprises:about 25% by weight gray slate flour;about 25% by weight corn starch;about 5% by weight epoxidized soybean oil;about 35% by weight calcium carbonate; andabout 10% by weight of a fatty acid selected from the group consisting of stearic acid and oleic acid;wherein the aggregate amount of the gray slate flour, corn starch, epoxidized soybean oil, calcium carbonate and fatty acid totals 100%; andwherein the additive is combined with a rubber elastomer to create a rubber elastomer composition. 19. The additive of claim 13, wherein the rubber elastomer is selected from the group consisting of natural rubber, isoprene, chloroprene, halo-butyls, SBR rubber, butyl rubber, neoprene, epichlorohydrin rubber, polysulfonated rubber, silicone rubber and mixtures thereof. 20. A method of producing an additive for a rubber elastomer, comprising the steps of:combining from about 10 to 30% gray slate flour, from about 10 to about 35% corn starch, from 5 to about 15% epoxidized soybean oil, from about 10 to about 40% calcium carbonate and from about 5 to about 15% of a fatty acid selected from the group consisting of stearic acid and oleic acid;mixing the components together;allowing the components to react to form an additive; andadding the additive to a rubber elastomer. 21. The method of claim 20, wherein said elastomer is selected from the group consisting of natural rubber, isoprene, chloroprene, halo-butyls, SBR rubber, butyl rubber, neoprene, epichlorohydrin rubber, polysulfonated rubber, silicone rubber and mixtures thereof. 22. A rubber elastomer composition comprised of:an additive, wherein the additive comprises:gray slate flour, corn starch, epoxidized soybean oil, calcium carbonate, and a fatty acid selected from the group consisting of stearic acid and oleic acid; anda rubber elastomer selected from the group consisting of natural rubber, isoprene, chloroprene, halo-butyls, SBR rubber, butyl rubber, neoprene, epichlorohydrin rubber, polysulfonated rubber, silicone rubber and mixtures thereof. 23. The composition of claim 22, wherein said additive comprises from about 10 to 30% gray slate flour, from about 10 to about 35% corn starch, from 5 to about 15% epoxidized soybean oil, from about 10 to about 40% calcium carbonate and from about 5 to about 15% of fatty acid selected from the group consisting of stearic acid and oleic acid. 24. An additive for use in making a rubber elastomer, the additive comprising:from about 10 to about 30% by weight of a comminuted shale/slate predominately formed of aluminum, magnesium and/or iron silicates;from about 10 to about 35% starch;from about 5 to about 15% of a reactive resin;from about 10 to about 40% of a metal carbonate;from about 5 to about 15% of an acidic component selected from the group consisting of silica gel and fatty acids;wherein the aggregate amount of the comminuted shale/slate, starch, reactive resin, metal carbonate and acidic component totals 100%; andwherein the additive is combined with a rubber elastomer to create a rubber elastomer composition. 25. The composition of claim 24, wherein said resin is liquid polyester resin. 26. The composition of claim 24, wherein said resin is selected from the group consisting of octyl epoxy tallate, epoxidized natural rubber, epoxidized Bisphenol A, styrene oxide, 1,2-epoxy-3-phenoxypropane, epoxidized soybean oil and epoxidized linseed oil. 27. A method of producing an additive for a polym eric material comprising the steps of:combining from about 10 to 30% gray slate flour, from about 10 to about 35% corn starch, from 5 to about 15% epoxidized soybean oil, from about 10 to about 40% calcium carbonate and from about 5 to about 15% of a fatty acid selected from the group consisting of stearic acid and oleic acid;mixing the components together;allowing the components to react to form an additive; andadding the additive to a polymeric material.
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