Welcome Guest to Coatings World    Login || Register
Last Updated Tuesday, September 2 2014
Print

Process for the Preparation of Antimicrobial Powder Coating



Published November 1, 2010
Patent No. U.S. 7,736,694 B2
Dupont Polymer Powders has received a patent for a process of preparation of an antimicrobial powder coating composition comprised of the steps of transforming a natural antimicrobial agent into a salt-form and micronizing the resulting antimicrobial salt into powder,  mixing at least one of the natural antimicrobial salt together with at least one amino-reactive thermoplastic binder resin, subjecting the mixture to a melt compounding process at a temperature in a range of 80° C to 230° C, at a residence time period in a range of 5 to 60 seconds, using at least one co-rotating twin-screw extruder with a soft screw design having conveying elements offering a high D/d ratio and having mixing forward kneading block elements, cooling the extrudate and micronizing into powder particles.


blog comments powered by Disqus
Receive free Coatings World emails
Sign up now to receive the weekly newsletter, and more!

Enter your email address:
Company Spotlight
BASF Corporation
100 Campus Drive
Florham Park, NJ, 07932
US
View Profile
Shamrock Technologies, Inc.
Foot of Pacific Street
Newark, NJ, 07114
USA
View Profile
Siltech Corporation
225 Wicksteed Avenue
Toronto, ON, M4H 1G5
Canada
View Profile
Lubrizol Advanced Materials, Inc.
9911 Brecksville Road
Cleveland, OH, 44141
US
View Profile
Houchi Chemical Co., Ltd
No.56, Fu Chow Street
Taipei, Taipei, 100
Taiwan
View Profile
Keeneyes
18F, No.85, Sec. 1, Chung-Shiao E. Rd.
Taipei, Taiwan, 100
R.O.C.
View Profile
Sunin Machine Co., Ltd.
No.96, Chiao Ho Rd ,Chungho Dist
New Taipei City, Taiwan , 235
Taiwan Roc
View Profile
Micro Powders, Inc.
580 White Plains Rd.
Tarrytown, NY, 10591
US
View Profile
Buhler Group (Nanotechnology)
13105 12th Ave. North
Plymouth, MN, 55441-4509
USA
View Profile
AZ Electronic Materials Co., Ltd.
No. 458-6, Sinsing Road Hu Kou Township Hsinchu Country 303, Taiwan
Hsinchu Country, Taiwan, 303
Taiwan
View Profile
Follow Coatings World On