[특허]Process and apparatus for producing a coated product

Process and apparatus for producing a coated product 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05D-003/12
출원번호	US-0728985 (2010-03-22)
등록번호	US-8178161 (2012-05-15)
발명자 / 주소	Xing, Baozhong Eastham, J. David Wynnyk, Nick P.
출원인 / 주소	Agrium Inc.
대리인 / 주소	Faegre Baker Daniels LLP
인용정보	피인용 횟수 : 2 인용 특허 : 70

초록 ▼

The present invention relates to a process for producing a coated product comprising: (a) coating a substrate with a coating material to form a coated substrate; and (b) stabilizing the coated substrate to form the coated product; wherein the operating parameter of substrate-substrate contact and coated substrate-coated substrate contact differs between step a) and step b), such that in step b) the contact is minimized. An apparatus is also provided.

대표청구항 ▼

1. A process for producing a coated product in a rotating drum, the process comprising the steps of: a) coating a substrate with a polymer coating material in a coating zone of the rotating drum rotating at a first circumferential drum speed for a time period sufficient to increase the viscosity of the polymer coating material to form a coated substrate having a substantially uniform coating; andb) stabilizing the coated substrate in a stabilization zone of the rotating drum operated for a time period at a sustained second circumferential drum speed during which the substantially uniform coating is maintained to form the coated product, the second circumferential drum speed being less than the first circumferential drum speed. 2. The process of claim 1, wherein the substrate is a plant nutrient, drug or vitamin. 3. The process of claim 1, wherein the substrate is urea. 4. The process of claim 1, wherein the coating material is a thermoset polymer. 5. The process of claim 1, wherein the coating material is a polyurethane. 6. The process of claim 5, wherein the polyurethane is a reaction product of a polyol or a mixture of polyols and an isocyanate or a mixture of isocyanates. 7. The process of claim 6, wherein the polyol and isocyanate are applied sequentially or simultaneously. 8. The process of claim 7, wherein the polyol and isocyanate are applied simultaneously and are ultrasonically pre-mixed. 9. The process of claim 5, where the coating material further comprises one or more coating additives. 10. The process of claim 9, wherein the coating additive is a wax or another hydrophobic material. 11. The process of claim 1, wherein step a) and step b) are conducted in a single rotating drum, including the coating zone and the stabilization zone characterized in that the coating zone has a larger diameter than the stabilization zone. 12. The process of claim 11, wherein the diameter of the drum in the coating zone is about 10% to about 80% larger than in the stabilization zone. 13. The process of claim 1, wherein the second circumferential drum speed is in the range of from about 10% to about 80% of the first circumferential drum speed. 14. The process of claim 1, wherein the second circumferential drum speed is in the range of from about 30% to about 80% of the first circumferential drum speed. 15. The process of claim 1, wherein the second circumferential drum speed is in the range of from about 40% to about 80% of the first circumferential drum speed. 16. The process of claim 1, wherein the first circumferential drum speed is in the range of from about 14 to about 40 meter per minute. 17. The process of claim 1, wherein the first circumferential drum speed is in the range of from about 20 to about 30 meter per minute. 18. The process of claim 1, wherein step b) is conducted for a duration of between about 0.5 to about 20 minutes. 19. The process of claim 1, wherein step b) is conducted for a duration of between about 1 to about 10 minutes. 20. The process of claim 1, wherein step b) is conducted for a duration of between about 2 to about 8 minutes. 21. The process of claim 1, wherein step b) is conducted for a duration of between about 2 to about 5 minutes.

이 특허에 인용된 특허 (70)

Hudson Alice P. (Jupiter FL) Woodward ; deceased Fred E. (late of West Palm Beach FL) Woodward ; executor by Sam (Westfield NJ) Timmons Richard J. (Marysville OH) Goertz Harvey M. (Marysville OH), Abrasion resistant coatings for fertilizers.
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Xing, Boazhong; Wilms, Lawrence A.; Wynnyk, Nick P.; Ford, Robert G.; Babiak, Nicolette M.; Eastham, J. David, Process and apparatus for coating a controlled release product in a rotating drum.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Process and apparatus for producing a coated product 원문보기

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Process and apparatus for producing a coated product 원문보기

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