	US 11,674,062 B2
	Structural adhesive compositions
Tien-Chieh Chao, Mars, PA (US); Masayuki Nakajima, Wexford, PA (US); Hongying Zhou, Allison Park, PA (US); Shanti Swarup, Allison Park, PA (US); and Umesh C. Desai, Wexford, PA (US)
Assigned to PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed by PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed on Jul. 10, 2019, as Appl. No. 16/507,931.
Application 16/507,931 is a continuation of application No. 14/964,795, filed on Dec. 10, 2015, granted, now 10,377,928.
Prior Publication US 2019/0330502 A1, Oct. 31, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. C09J 163/00 (2006.01); C08G 59/14 (2006.01); C08G 59/40 (2006.01); C08G 59/16 (2006.01); C08G 59/44 (2006.01)

CPC C09J 163/00 (2013.01) [C08G 59/1455 (2013.01); C08G 59/1477 (2013.01); C08G 59/4042 (2013.01); C08G 59/44 (2013.01)]

10 Claims

1. An adhesive composition comprising:

an epoxy compound;

a polymeric compound comprising at least two aminimide functional groups, wherein the polymeric compound reacts with the epoxy compound upon exposure to a temperature of at least 100° C.; wherein the polymeric compound is present in an amount of 2-8% by weight based on total weight of the adhesive composition;

rubber particles having a core/shell structure; and

a secondary latent catalyst;

wherein the composition comprises a one-component composition and has less than a 100% increase in viscosity when stored at 25° C. for 90 days.