	US 12,104,101 B2
	Composite materials
Sibo Cheng, Cambridge, MA (US); Yashraj S. Narang, Cambridge, MA (US); Canhui Yang, Somerville, MA (US); Zhigang Suo, Lexington, MA (US); and Robert D. Howe, Cambridge, MA (US)
Assigned to President and Fellows of Harvard College, Cambridge, MA (US)
Filed by President and Fellows of Harvard College, Cambridge, MA (US)
Filed on May 11, 2020, as Appl. No. 16/872,088.
Claims priority of provisional application 62/846,231, filed on May 10, 2019.
Prior Publication US 2020/0354613 A1, Nov. 12, 2020
Int. Cl. B32B 5/18 (2006.01); B32B 5/32 (2006.01); B32B 7/12 (2006.01); B32B 25/04 (2006.01); B32B 25/16 (2006.01); B32B 25/20 (2006.01); C09J 7/38 (2018.01)

CPC C09J 7/385 (2018.01) [B32B 5/18 (2013.01); B32B 5/32 (2013.01); B32B 25/045 (2013.01); B32B 25/16 (2013.01); B32B 25/20 (2013.01); B32B 7/12 (2013.01); B32B 2250/24 (2013.01); B32B 2255/26 (2013.01); B32B 2266/122 (2016.11); B32B 2457/00 (2013.01); C09J 2301/414 (2020.08); C09J 2433/00 (2013.01); C09J 2483/006 (2013.01)]

8 Claims

1. A composite material comprising:

a first material comprising a plurality of crosslinked first polymer chains comprising a plurality of first polymer monomeric units;

a coating layer on at least a portion of the surface of the first material, wherein the coating layer comprises a plurality of adhesion polymer chains, wherein said plurality of adhesion polymer chains comprises a plurality of the first polymer monomeric units and a plurality of first bond-forming units, wherein the adhesion polymer chains are interwoven with the crosslinked first polymer chains; and

a second material comprising a plurality of second polymer chains on at least a surface of the second material, wherein the coating layer is disposed in-between the first material and the second material and contacting the surface of the first material and the second material, and at least a portion of each of the second polymer chains comprises a plurality of second polymer monomeric units and second bond-forming units;

wherein the first bond-forming units and the second bond-forming units form one or more bonds;

wherein the first material comprises an elastomer and a soft robot or a portion thereof;

wherein the second material comprises a hydrogel; and

wherein the one or more bonds formed between the first bond-forming units and the second bond-forming units comprise siloxane bonds.