IP Library Granted Patent US 11,661,238
Granted Patent B2
US 11,661,238 · App. 17/713,182 · Granted May 30, 2023

Coated container device, method of making the same

Inventors: Bernhard Kainz (Lauf, DE); Richard A. Lundgard (Midland, MI); David L. Malotky (Midland, MI); Jodi M. Mecca (Midland, MI); Charles F. Diehl (Blue Bell, PA); Ray E. Drumright (Midland, MI)
Assignee: Dow Global Technologies LLC
B65D25/14B05D2202/00B05D2401/20B05D2701/00
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Quick Facts
Patent No.
US 11,661,238
App. No.
17/713,182
Granted
May 30, 2023
Kind
B2
Abstract

The instant invention provides a coated container device, and method of making the same. The coated container device according to the instant invention comprises: (1) a metal substrate; and (2) one or more crosslinked coating layers associated with the metal substrate, wherein the one or more crosslinked coating layers are derived from the application of one or more aqueous dispersions to at least one surface of the metal substrate, and wherein the one or more aqueous dispersion comprise: (a) one or more a base polymer; (b) one or more a stabilizing agent; (c) optionally one or more neutralizing agents, (d) one or more crosslinking agents; and (e) water.

Claims (9)

1. A coated container device or a coated closure device comprising:

a metal substrate; and

one or more crosslinked coating layers associated with said metal substrate, and wherein one or more crosslinked coating layers are derived from the application of one or more aqueous dispersions to at least one surface of said metal substrate, and wherein said one or more aqueous dispersions comprise;

the melt blending product of;

a base polymer, wherein said base polymer comprises a thermoplastic polyolefin polymer, having a polar group as either a comonomer or grafted monomer; and

a stabilizing agent, wherein the stabilizing agent is a polar polyolefin in the presence of water and a stoichiometric excess of a neutralizing agent in an extruder; and

one or more crosslinking agents,

with the proviso that the base polymer has a lower acid number, measured according to ASTM D-974, than the stabilizing agent; and

wherein a particle size of a dispersed hydrophobic phase in the aquesous dispersion is equal to or greater than 1.2 microns.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2023
From: KAINZ, BERNHARD
To: DOW DEUTSCHLAND GMBH & CO. OHG
Reel/Frame 063198/0303 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2023
From: DOW DEUTSCHLAND GMBH & CO. OHG
To: THE DOW CHEMICAL COMPANY
Reel/Frame 063198/0306 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2023
From: LUNDGARD, RICHARD A.; MALOTKY, DAVID L.; MECCA, JODI M.; DIEHL, CHARLES F.; DRUMRIGHT, RAY E.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 063198/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2023
From: THE DOW CHEMICAL COMPANY
To: DOW GLOBAL TECHNOLOGIES INC.
Reel/Frame 063198/0507 →
CHANGE OF NAME Recorded Apr 1, 2023
From: DOW GLOBAL TECHNOLOGIES INC.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 063231/0843 →
Continuity (3)
Continuation 13386855
Provisional Application 61228366 · Jul 24, 2009
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