IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0123306
(2008-05-19)
|
등록번호 |
US-7703167
(2010-05-20)
|
발명자
/ 주소 |
- Sharabura, Scott D.
- Allen, Michael E.
- Holmes, Jeannie
- Paulsen, Victor K.
- Shanmugham, Subramaniam
|
출원인 / 주소 |
- Jamak Fabrication-Tex, LLC
|
대리인 / 주소 |
Sonnenschein Nath & Rosenthal LLP
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
105 |
초록
▼
A squeegee blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 and 42 weight percent. The average particle size of the friction-reducing additive is prefer
A squeegee blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 and 42 weight percent. The average particle size of the friction-reducing additive is preferably less than about 25 microns, thereby permitting extrusion of the compound into the shape of a squeegee blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used.
대표청구항
▼
We claim: 1. A squeegee comprising: a frame; a squeegee blade adapted to be attached to the frame; and wherein the squeegee blade is made from a mixture including a methyl vinyl silicone polymer from about 22 to 55 weight percent, a filler from about 35 to 50 weight percent, and polytetrafluoroethy
We claim: 1. A squeegee comprising: a frame; a squeegee blade adapted to be attached to the frame; and wherein the squeegee blade is made from a mixture including a methyl vinyl silicone polymer from about 22 to 55 weight percent, a filler from about 35 to 50 weight percent, and polytetrafluoroethylene in an amount of from about 5 to 42 weight percent, the polytetrafluoroethylene having an average particle size of less than about 25 μm. 2. The squeegee according to claim 1, wherein the polytetrafluoroethylene has an average particle size of less than about 6 μm. 3. The squeegee according to claim 1, wherein the filler is a mineral. 4. The squeegee according to claim 1, wherein the filler is selected from the group consisting of silica and calcium. 5. The squeegee according to claim 1, wherein the mixture further comprises: hydroxyl-terminated silicone polymer from about 1 to 15 weight percent; a cerium stabilizer from about 0.1 to 1 weight percent; acid acceptor from about 0.1 to 1 weight percent; pigment from about 0.1 to 1 weight percent; and peroxide from about 0.5 to 2 weight percent. 6. The squeegee according to claim 1, wherein the polytetrafluoroethylene is present in an amount of about 11 to 42 weight percent. 7. The squeegee according to claim 1, wherein the polytetrafluoroethylene is present in an amount of about 11 weight percent. 8. A method for manufacturing a squeegee comprising the steps of: compounding a mixture comprising from about 22 to 55 weight percent of a methyl vinyl silicone polymer, from about 35 to 50 weight percent of a filler, and from about 5 to 42 weight percent of polytetrafluoroethylene, the polytetrafluoroethylene having an average particle size of less than about 25 μm; and forming the squeegee from the mixture. 9. The method according to claim 8, wherein the polytetrafluoroethylene has an average particle size of less than about 6 μm. 10. The method according to claim 8, wherein the filler is a mineral. 11. The method according to claim 8, wherein the filler is selected from the group consisting of silica and calcium. 12. The method according to claim 8, wherein the mixture further comprises: hydroxyl-terminated silicone polymer from about 1 to 15 weight percent; a cerium stabilizer from about 0.1 to 1 weight percent; acid acceptor from about 0.1 to 1 weight percent; pigment from about 0.1 to 1 weight percent; and peroxide from about 0.5 to 2 weight percent. 13. The method according to claim 8, wherein the squeegee is formed by an extrusion process. 14. The method according to claim 8, wherein the squeegee is formed by a molding process. 15. The method according to claim 8, wherein the polytetrafluoroethylene is present in an amount of about 11 to 42 weight percent. 16. The method according to claim 8, wherein the polytetrafluoroethylene is present in an amount of about 11 weight percent. 17. A squeegee for wiping a surface comprising a material made from a mixture including a methyl vinyl silicone polymer from about 22 to 55 weight percent, a filler from about 35 to 50 weight percent, and polytetrafluoroethylene in an amount of from about 5 to 42 weight percent, the polytetrafluoroethylene having an average particle size of less than about 25 μm. 18. The squeegee according to claim 17, wherein the polytetrafluoroethylene has an average particle size of less than about 6 μm. 19. The squeegee according to claim 17, wherein the filler is a mineral. 20. The squeegee according to claim 17, wherein the filler is selected from the group consisting of silica and calcium. 21. The squeegee according to claim 17, wherein the mixture further comprises: hydroxyl-terminated silicone polymer from about 1 to 15 weight percent; a cerium stabilizer from about 0.1 to 1 weight percent; acid acceptor from about 0.1 to 1 weight percent; pigment from about 0.1 to 1 weight percent; and peroxide from about 0.5 to 2 weight percent. 22. The squeegee according to claim 17, wherein the polytetrafluoroethylene is present in an amount of about 11 to 42 weight percent. 23. The squeegee according to claim 17, wherein the polytetrafluoroethylene is present in an amount of about 11 weight percent.
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