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Publication Title | United States Patent US7074353 METHODS OF MANUFACTURING PARTICLES

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(12)United States Patent Jachuck etal.

(54)METHODSOFMANUFACTURING PARTICLES

(10) Patent N0.: US 7,074,353 B2 (45)Date ofPatent: Jul.11,2006

6,210,498B1 4/2001Ovshinskyeta1. FOREIGN PATENT DOCUMENTS

(75)

(73) (*)

(21) (22) (86)

(87)

(65)

(51) (52) (58)

(56)

Inventors: Roshan Jeet Jee Jachuck, Newcastle Upon Tyne (GB); Stuart Cook, North

Yorkshire (GB)

Assignee: ProtensiveLimited,Cambridge(GB)

JP 1156408 W0 WO 99/55454 W0 WO 00/48728 W0 WO 00/48729 W0 WO 00/48730 W0 WO 00/48731 W0 WO 00/48732 W0 WO 00/69014 W0 WO 01/60511 W0 WO 01/68297

12/1987 11/1999 8/2000 8/2000 8/2000 8/2000 8/2000 11/2000 8/2001 9/2001

Notice:

Appl.No.:

PCTFiled:

PCT No.:

Subjecttoanydisclaimer,thetermofthis patent is extended or adjusted under 35 U.S.C. 154(b) by 353 days.

10/484,609 Jul.22,2002 PCT/GB02/03368

OTHER PUBLICATIONS

Kamelia Boodhoo, “Process Intensi?cationiSpinning Disc Reactors” Abstracts of Talks at Symposium for Young Scientists, Green Chemistry Network (Sep. 28, 1999).

Primary ExamineriMary Lynn Theisen

(74) Attorney, Agent, or F irm4Garvey, Smith, Nehrbass & North, L.L.C.; Seth M. Nehrbass; Brett A. North

(57) ABSTRACT

A methodofmanufacturingparticles,especiallynanopar ticles, by Way of precipitation from solution on a rotating surface(1)ofarotatingsurfacereactorisdisclosed.Nano particlesWithatightsiZedistributionmay bemanufactured in bulk and Without the problems of agglomeration that are associated With traditional stirred-tank reactors. Use of a rotatingsurfacereactoralloWsprecipitationofnanoparticles from Viscous, supersaturated solutions by Way of homoge neous nucleation aided by strong micromixing.

27Claims,7DrawingSheets

5? r1

)1 J6 COCO

§371 (0X1)’

(2),(4)Date: Jan.20,2004

PCT Pub. No.: WO03/008083 PCT Pub. Date: Jan. 30, 2003

Prior Publication Data US 2004/0241430 A1 Dec. 2, 2004

Int. Cl.

B29B 9/00 (2006.01)

U.s. c1. .. 264/7; 264/8; 264/9; 264/10;

977/DIG. 1 Field of Classi?cation Search .................... 264/8

See application ?le for complete search history.

4,485,055 A

11/1984 Bungeta1.

References Cited U.S. PATENT DOCUMENTS

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US007074353B2

Image | United States Patent US7074353 METHODS OF MANUFACTURING PARTICLES



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