US 12,291,633 B2
Coating compositions
Marvin Michael Pollum, Jr., Pittsburgh, PA (US); Joseph Peter Kriley, Valencia, PA (US); Masayuki Nakajima, Wexford, PA (US); Ljiljana Maksimovic, Allison Park, PA (US); Brian Kirk Rearick, Allison Park, PA (US); Adam B. Powell, Wexford, PA (US); and David Joseph Fortman, Pittsburgh, PA (US)
Assigned to PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed by PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed on Mar. 27, 2023, as Appl. No. 18/190,798.
Application 18/190,798 is a continuation of application No. 16/968,848, granted, now 11,732,125, previously published as PCT/US2018/064695, filed on Dec. 10, 2018.
Claims priority of provisional application 62/628,540, filed on Feb. 9, 2018.
Claims priority of provisional application 62/630,473, filed on Feb. 14, 2018.
Prior Publication US 2023/0250274 A1, Aug. 10, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 59/24 (2006.01); B32B 27/38 (2006.01); C08G 59/22 (2006.01); C08G 59/40 (2006.01); C08G 59/68 (2006.01); C08K 3/013 (2018.01); C08L 25/10 (2006.01); C08L 63/02 (2006.01); C08L 63/04 (2006.01); C08L 83/04 (2006.01); C09D 163/00 (2006.01); C09D 163/02 (2006.01); C09J 163/00 (2006.01); C09J 163/02 (2006.01)
CPC C08L 63/04 (2013.01) [B32B 27/38 (2013.01); C08G 59/226 (2013.01); C08G 59/245 (2013.01); C08G 59/4021 (2013.01); C08G 59/68 (2013.01); C08K 3/013 (2018.01); C08L 25/10 (2013.01); C08L 83/04 (2013.01); C09D 163/00 (2013.01); C09J 163/00 (2013.01); C08G 2150/00 (2013.01); C08G 2170/00 (2013.01); C08K 2201/019 (2013.01); C08L 2205/18 (2013.01); C08L 2207/53 (2013.01); C08L 2312/06 (2013.01)] 13 Claims
 
1. A composition comprising:
an epoxy-containing component in an amount of at least 45% to no more than 85% by weight based on total weight of the composition and comprising a bisphenol F epoxy resin;
elastomeric core-shell particles in an amount of greater than 11% by weight to 25% by weight based on total weight of the composition, wherein the core-shell elastomeric particles have an average particle size of 50 nm to 150 nm as measured by electron transmission microscopy; and
a curing component activatable by an external energy source, the curing component comprising at least one guanidine in an amount of 2% to 20% by weight based on total weight of the composition and comprising a D90 particle size of 25 μm measured by dynamic light scattering.
 
6. The composition of claim 1, further comprising filler in an amount of no more than 20% by weight based on total weight of the composition and/or additives in an amount of no more than 20% by weight based on total weight of the composition.