B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
25/3, 117/64
B05D 1/32 (2006.01) B05D 5/00 (2006.01) B05D 7/22 (2006.01) C25D 13/22 (2006.01) F16B 33/06 (2006.01) F16B 37/00 (2006.01) B05D 3/02 (2006.01)
Patent
CA 1328379
ABSTRACT A method of masking the threaded portion of a threaded fastener part to prevent adhesion of coatings comprising the steps of applying a film of a heat activated foaming polymeric material to the threaded portion of a threaded part prior to exposing the threads to a coating and heating the foaming material subsequent to the application of a coating thereto. The foaming material comprises a plastisol, preferably including a vinyl compound, which most preferably is polyvinyl chloride. The foaming material further comprises a blowing agent, preferably azodicarbonamide.
603565
Buell Industries Inc.
Perley-Robertson Hill & Mcdougall Llp
LandOfFree
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