Coating processes – Direct application of electrical – magnetic – wave – or... – Electrostatic charge – field – or force utilized
Patent
1996-08-27
1998-01-13
Cameron, Erma
Coating processes
Direct application of electrical, magnetic, wave, or...
Electrostatic charge, field, or force utilized
427476, 427547, 427235, 427236, 427237, 4272556, B05D 512
Patent
active
057076910
ABSTRACT:
Methods for providing a low permeability coating on the interior of a refillable plastic container, such as a PET beverage bottle, include coating of a liquid crystal polymer (LCP) by depositing LCP monomers on the interior surface of the container and bi-axially orienting the monomers continuously while reacting the monomers to produce the polymer. The interior surface of the container may be pre-treated to produce free radicals which enhance the attachment of the monomers to the surface. Also, the surface may be post-treated to eliminate unsaturated radicals or free monomers. The application of the monomers to the interior surface of the container can be effected by condensing a gas blend of monomers, by spraying liquid monomers or by filling with liquid monomers and then emptying to leave a residual coating. The monomers are reacted by preheating them or by subjecting them to a heated inert gas. To achieve the bi-axial orientation of the monomers, the interiorly coated container may be alternately subjected to longitudinal and circumferential magnetic fields while supported for incremental end-to-end rotation and rotation about its axis. Another technique for achieving the bi-axial orientation comprises subjecting the container to alternately applied longitudinal and circumferential electrostatic fields.
REFERENCES:
patent: 3733309 (1973-05-01), Wyeth et al.
patent: 3804663 (1974-04-01), Clark
patent: 4069933 (1978-01-01), Newing
patent: 4501781 (1985-02-01), Kushida et al.
patent: 4575915 (1986-03-01), Clark et al.
patent: 4606942 (1986-08-01), Shriver et al.
patent: 4725464 (1988-02-01), Collette
patent: 4746538 (1988-05-01), Mackowski
patent: 4892392 (1990-01-01), Broer
patent: 4944576 (1990-07-01), Lacker et al.
patent: 5024850 (1991-06-01), Broer et al.
patent: 5073219 (1991-12-01), McArdle et al.
patent: 5468519 (1995-11-01), Akiyama et al.
Plester George
Vandekerckhove Stijn
Cameron Erma
The Coca-Cola Company
LandOfFree
Coating hollow containers by in-situ polymerization of monomers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coating hollow containers by in-situ polymerization of monomers , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating hollow containers by in-situ polymerization of monomers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-324363