Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1992-03-31
1993-11-30
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524560, 524562, 5253299, 525374, C08F 830
Patent
active
052666280
ABSTRACT:
A coating composition which may be water based and which is adapted for metallic substrates is disclosed, having: (1) binder resin comprising acrylic polymer having carboxy functionality, and (2) a curing agent comprising hydroxyalkylamide, wherein the ratio of hydroxy groups in the hydroxyalkylamide to carboxy groups in the binder resin is less than 0.5:1, preferably less than 0.4 to 1, and most preferably less than 0.35 to 1. The composition has been found to yield films exhibiting good resistance to water at high temperatures, thereby rendering them particularly suitable for use on metal food and beverage containers that are subjected to sterilization or pasteurization processes.
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James Lomax and Graham Swift, ".beta.-Hydroxyalkylamides, Low Polluting Crosslinkers for Carboxyl Containing Polymers", Journal of Coatings Technology, vol. 50, No. 643, Aug. 1978. pp. 49-55.
Essary William A.
List Michael T.
Lipman Bernard
Millman Dennis G.
PPG Industries Inc.
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