IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0208219
(2002-07-30)
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발명자
/ 주소 |
- Ross, Russell Frederick
- Yahiaoui, Ali
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출원인 / 주소 |
- Kimberly-Clark Worldwide, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
30 |
초록
▼
A paper machine substrate modified to resist contamination by adhesive materials. The paper machine substrate includes: a paper machine substrate; and an active agent that is grafted to the surface of the paper machine substrate to lower the surface energy of the paper machine substrate so that the
A paper machine substrate modified to resist contamination by adhesive materials. The paper machine substrate includes: a paper machine substrate; and an active agent that is grafted to the surface of the paper machine substrate to lower the surface energy of the paper machine substrate so that the substrate resists contamination by adhesive material. The papermachine substrate may be made by a process that includes the steps of: providing a paper machine substrate; applying an active agent to the paper machine substrate; and exposing the paper machine substrate to greater than about 2 million rads (Mrad) of radiation to cause a reaction between the active agent and the substrate so the active agent becomes joined to the substrate. The active agent may be a fluorinated monomer, a fluorinated polymer, a perfluorinated polymers, or a polyalkyl siloxane.
대표청구항
▼
1. A process for making a treated paper machine substrate comprising the steps of: providing a paper machine substrate for transporting fibers during a papermaking process; applying an active agent selected from the group consisting of fluorinated monomers, fluorinated polymers, perfluorinated p
1. A process for making a treated paper machine substrate comprising the steps of: providing a paper machine substrate for transporting fibers during a papermaking process; applying an active agent selected from the group consisting of fluorinated monomers, fluorinated polymers, perfluorinated polymers, and polyalkyl siloxanes onto a surface of said paper machine substrate, wherein the percent add-on of said active agent to said substrate is from about 0.5% to about 5%; and exposing said paper machine substrate to from about 2 Mrads to about 5 Mrads of radiation. 2. A process for making a treated paper machine substrate comprising the steps of: providing a paper machine substrate for transporting fibers during a papermaking process; applying an active agent selected from the group consisting of fluorinated monomers, fluorinated polymers, perfluorinated polymers, and polyalkyl siloxanes onto a surface of said paper machine substrate; and exposing said paper machine substrate to greater than about 2 Mrads of radiation. 3. The process of claim 2, wherein the active agent is a fluorinated monomer. 4. The process of claim 2, wherein the active agent is selected from the group consisting of fluorinated polymers, perfluorinated polymers, and polyalkyl siloxanes. 5. The process of claim 2, wherein the percent add-on of said active agent to said substrate is from about 0.5% to about 5%. 6. The process of claim 2, wherein the substrate is exposed to from about 2 Mrads to about 5 Mrads of said radiation. 7. A process of making a treated paper machine substrate comprising the steps of: providing a paper machine substrate; applying an active agent to the paper machine substrate; and exposing the paper machine substrate to greater than about 2 million rads (Mrad) of radiation to cause a reaction between the active agent and the substrate so the active agent becomes joined to the substrate. 8. The process of claim 7, wherein the substrate is exposed to from about 2 Mrads to about 5 Mrads of said radiation. 9. The process of claim 7, wherein the percent add-on of said active agent to said substrate is from about 0.5% to about 5%. 10. The process of claim 7, wherein the substrate has a surface energy sufficiently low to exhibit repellency to isopropyl alcohol. 11. The process of claim 7, wherein the substrate is formed from a polymeric material. 12. The process of claim 7, wherein the substrate has a permeability sufficient to permit the passage of water therethrough. 13. The process of claim 7, wherein the substrate is a nonwoven material. 14. The process of claim 7, wherein the paper machine substrate is made of polyethylene terephthalate or nylon. 15. The process of claim 7, wherein the paper machine substrate is made of a metal. 16. The process of claim 7, wherein the active agent is a fluorinated monomer. 17. The process of claim 16, wherein the fluorinated monomer has the chemical formula: CH2=CROCO(CH2)x(CnF2n+1) wherein n is an integer ranging from 1 to 8, x is an integer ranging from 1 to 8, and R is H or CH3. 18. The process of claim 16, wherein the fluorinated monomer is selected from the group consisting of 2-Propenoic acid, 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyl ester; 2-Propenoic acid, 2-methyl-2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyl ester; 2-Propenoic acid, pentafluoroethyl ester; 2-Propenoic acid, 2-methyl-, pentafluorophenyl ester; Benzene, ethenylpentafluoro-; 2-Propenoic acid, 2,2,2-trifluoroethyl ester; and 2-Propenoic acid, 2-methyl-, 2,2,2-trifluoroethyl ester. 19. The process of claim 7, wherein the active agent is selected from the group consisting of fluorinated polymers, perfluorinated polymers, and polyalkyl siloxanes. 20. The process of claim 7, wherein the substrate is a woven material.
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