US 12,122,881 B2
Linear block copolymer toughener with acrylate functional groups
Jia Liu, Lake Villa, IL (US); Alexander Papadakis, Oak Park, IL (US); and Michael Terralavoro, Chicago, IL (US)
Assigned to Ele' Corporation, McCook, IL (US)
Filed by Ele' Corporation, McCook, IL (US)
Filed on Oct. 5, 2023, as Appl. No. 18/377,115.
Application 18/377,115 is a continuation of application No. 18/197,010, filed on May 12, 2023, granted, now 11,814,485.
Application 18/197,010 is a continuation of application No. PCT/US2022/025971, filed on Apr. 22, 2022.
Prior Publication US 2024/0043625 A1, Feb. 8, 2024
Int. Cl. C08G 77/46 (2006.01); C08L 33/06 (2006.01); C08L 63/00 (2006.01)
CPC C08G 77/46 (2013.01) [C08L 33/06 (2013.01); C08L 63/00 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A toughener for a thermosetting resin comprising:
a linear block copolymer comprising a plurality of alternating units of polydimethylsiloxane and bisphenol A poly(ethylene oxide) bis-ethyl ether arranged in a sequence of ˜(AB)ZA˜, where A is the polydimethylsiloxane, B is the bisphenol A poly(ethylene oxide) bis-ethyl ether, and z is a number between 1 and 100; and
two acrylate functional groups, where one acrylate functional group is positioned on one end of the linear block copolymer and the other acrylate functional group is positioned on the other end of the linear block copolymer.