IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0264040
(2002-10-03)
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발명자
/ 주소 |
- Jin, Pei Wen
- Benca, Kimberly R.
- Quarmby, Ian C.
- Kurpiewski, Thomas
- Ferrell, Victor E.
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
9 |
초록
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The invention provides curable organic coatings with improved scratch resistance. More particularly, the present invention relates to a combination of inorganic filler having a 50th percentile particle diameter of from about 3 to about 9 micrometers comprised of aluminum oxide, silicon dioxide, cera
The invention provides curable organic coatings with improved scratch resistance. More particularly, the present invention relates to a combination of inorganic filler having a 50th percentile particle diameter of from about 3 to about 9 micrometers comprised of aluminum oxide, silicon dioxide, ceramic spheres or mixtures thereof, and particles having a 50th percentile particle diameter of from about 10 to about 150 micrometers. The liquid coatings have a viscosity before curing of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1. The use of inorganic filler materials of the defined type and particle size are combined with the curable organic coating to improve the scratch resistance of the coating without a negative impact on the physical and performance properties or application parameters of the original coating material. The present invention also provides organic coatings comprising texture-producing particles which provide the coating with texture after the coating has been cured.
대표청구항
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1. A scratch-resistant coating composition having a textured surface upon curing when applied on a substrate, and having a thickness of from 5 to 150 micrometers, said coating comprising:a curable polymer, an inorganic filler in an amount effective to enhance the scratch resistance of the coating co
1. A scratch-resistant coating composition having a textured surface upon curing when applied on a substrate, and having a thickness of from 5 to 150 micrometers, said coating comprising:a curable polymer, an inorganic filler in an amount effective to enhance the scratch resistance of the coating composition, and texture-producing particles, wherein the inorganic filler has a 50th percentile particle diameter of from about 3 to about 9 micrometers, wherein said inorganic filler comprises ceramic spheres, and wherein said texture-producing particles have a 50th percentile particle diameter of from about 10 to about 150 micrometers. 2. The scratch resistant coating composition according to claim 1, wherein said coating has a viscosity of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1, and wherein the curable polymer comprises acrylourethane, polyester acrylate, epoxy acrylate or cycloaliphatic epoxide polymers, or a combination thereof.3. The scratch resistant coating composition according to claim 1, wherein the inorganic filler is present in an amount from about 8% to about 25% by weight of the total weight of said composition.4. The scratch resistant coating composition according to claim 3, wherein the inorganic filler is present in an amount from about 8% to about 12% by weight.5. The scratch resistant coating composition according to claim 1, wherein the curable polymer is a radiation curable polymer comprising an oligomer in an amount of about 10% to about 85% by weight of the total radiation curable coating composition and a monofunctional or polyfunctional reactive monomer in an amount of from about 10% to about 85% by weight of the total radiation curable coating composition.6. A scratch resistant coating composition according to claim 1, wherein said texture-producing particles are present in an amount from about 1% to about 20% by weight based on the total weight of said coating, and wherein said coating has a viscosity before curing of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1.7. A scratch resistant coating composition according to claim 6, wherein said texture-producing particles comprise alumina; an alumina derivative; alumina coated on silica; ceramic; glass; silica; a thermosetting or thermoplastic polymer, a thermosetting or thermoplastic copolymer, a thermosetting or thermoplastic wax, a thermosetting or thermoplastic microsphere or bead; or a combination thereof.8. A scratch resistant coating composition according to claim 7, wherein said texture-producing particles comprise said thermosetting or thermoplastic polymer, thermosetting or thermoplastic copolymer, thermosetting or thermoplastic wax, thermosetting or thermoplastic microsphere or bead, or a combination thereof.9. A scratch resistant coating composition according to claim 8, wherein said texture-producing particles comprise polyamide, polyolefin wax, or a combination thereof.10. A scratch resistant coating composition according to claim 8, wherein said coating composition has a viscosity before curing of from about 200 to about 50,000 cps (mPa-s) at a shear rate of 0.15 s?1, and wherein said texture-producing particles are utilized in the coating in an amount from about 2% to about 15% by weight.11. A scratch resistant coating composition according to claim 10, wherein said coating further comprises a photoinitiator.12. A process for preparing a scratch resistant, textured, cured coating, comprising the steps of:incorporating inorganic particles comprising ceramic spheres having a 50th percentile particle diameter of about 3 to about 9 micrometers and texture-producing particles having a 50th percentile particle diameter of about 10 to about 150 micrometers in a radiation curable coating composition: applying the coating composition to a substrate; and curing the coating composition, said cured coating having a textured surface. 13. A process for preparing a cured coating according to claim 12, wherein said coating has a viscosity of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1, and wherein said radiation curable coating composition comprises a radiation curable polymer comprising acrylourethane, polyester acrylate, epoxy acrylate or cycloaliphatic epoxide polymers, or combinations thereof.14. A process for preparing a cured coating according to claim 13, wherein said inorganic particles are present in an amount from about 8% to about 25% by weight of the total weight of said composition.15. A process for preparing a cured coating according to claim 14, wherein said inorganic particles are present in an amount from about 8% to about 12% by weight.16. A process for preparing a cured coating according to claim 13, wherein said radiation curable polymer comprises an oligomer in an amount of about 10% to about 85% by weight of the total radiation curable coating composition and an monofunctional or polyfunctional reactive monomer in an amount from about 10% to about 85% by weight of the total radiation curable coating composition.17. A process for preparing a cured coating according to claim 12, wherein said texture-producing particles are present in an amount from about 1% to about 20% by weight based on the total weight of said coating, and wherein said coating has a viscosity before curing of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1.18. A process for preparing a cured coating according to claim 17, wherein said texture-producing particles comprise alumina; an alumina derivative; alumina coated on silica; ceramic; glass; silica; a thermosetting or thermoplastic polymer, said thermosetting or thermoplastic copolymer, said thermosetting or thermoplastic wax, said thermosetting or thermoplastic microsphere or bead, or a combination thereof.19. A process for preparing a cured coating according to claim 18, wherein said texture-producing particles comprise said thermosetting or thermoplastic polymer, a thermosetting or thermoplastic copolymer, a thermosetting or thermoplastic wax, a thermosetting or thermoplastic microsphere or bead, or a combination thereof.20. A process for preparing a cured coating according to claim 19, wherein said texture-producing particles comprise polyamide, polyolefin wax, or a combination thereof.21. A process for preparing a cured coating according to claim 20, wherein said coating composition has a viscosity before curing of from about 200 cps (mPa-s) to about 50,000 cps (mPa-s) at a shear rate of 0.15 s?1, and wherein said texture producing particles are utilized in the coating in an amount from about 2% to about 15% by weight.22. A process for preparing a cured coating according to claim 20, wherein said coating further comprises a photoinitiator.23. A process for preparing a cured coating according to claim 12, wherein said applying the coating composition to said substrate is performed by spraying, roll coating, curtain coating, or air-knifing or a combination thereof.24. A process for preparing a cured coating according to claim 15, wherein said applying the coating composition to said substrate is performed by spraying, roll coating, curtain coating, or air-knifing or a combination thereof.25. A flooring laminate, comprising:a substrate; and a textured cured coating having a thickness from 5 to 150 micrometers, said coating comprising a curable polymer, and inorganic filler in an amount effecting to enhance the scratch resistance of the coating, and texture-producing particles, wherein the inorganic filler has a 50th percentile particle diameter of from about 3 to about 9 micrometers, wherein said inorganic filler comprises ceramic spheres, and wherein said texture-producing particles have a 50th percentile particle diameter of from about 10 to about 150 micrometers.26. A laminate according to claim 25, wherein the inorganic filler is present in an amount from about 8% to about 25% by weight of the total weight of said composition before curing, and wherein said cured coating is derived from a polymer comprising acrylourethane, polyester acrylate, epoxy acrylate, or cycloaliphatic epoxide polymers, or a combination thereof.27. A laminate according to claim 26, wherein said textured-producing particles are present in an amount from about 1% to about 20% by weight based on the total weight of said coating before curing, and wherein said coating has a viscosity before curing of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1.28. A laminate according to claim 27, wherein said texture-producing particles comprise alumina; an alumina derivative; alumina coated on silica; ceramic; glass; silica; a thermosetting or thermoplastic polymer, a thermosetting or thermoplastic copolymer, a thermosetting or thermoplastic wax, a thermosetting or thermoplastic microsphere or bead; or a combination thereof.29. A laminate according to claim 28, wherein said texture-producing particles comprise said thermosetting or thermoplastic polymer, said thermosetting or thermoplastic copolymer, said thermosetting or thermoplastic wax, said thermosetting or thermoplastic microsphere or bead, or a combination thereof.30. A laminate according to claim 29, wherein said texture-producing particles comprise polyamide, polyolefin wax, or a combination thereof.31. A laminate according to claim 30, wherein said coating composition has a viscosity before curing of from about 200 cps (mPa-s) to about 50,000 cps (mPa-s) at a shear rate of 0.15 s?1, and wherein said texture-producing particles are utilized in the coating in an amount from about 2% to about 15% by weight.32. A laminate according to claim 31, wherein the curable polymer is a radiation curable polymer comprising an oligomer in an amount of about 10% to about 85% by weight of the total radiation curable coating composition and a monofunctional or polyfunctional reactive monomer in an amount of from about 10% to about 85% by weight of the total radiation curable coating composition.33. A process for preparing a cured coating according to claim 12, wherein the radiation curable polymer is cured with ultraviolet light radiation.34. A process for preparing a cured coating according to claim 12, wherein the radiation curable polymer comprises an acrylourethane polymer.35. A scratch resistant coating composition according to claim 2, wherein said curable polymer contains an alkoxylated di- or tri-acrylate.36. A scratch resistant coating composition according to claim 2, wherein said curable polymer is an acrylourethane and contains a non-alkoxylated acrylate selected from the group consisting of tripropylene glycol diacrylate, neopentylglycol diacrylate, trimethylolpropane triacrylate, 1,6-hexane diol diacrylate, 2-ethylhexyl acrylate, isobornyl acrylate, phenoxyethyl acrylate and isodecyl acrylate.
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