US 12,351,673 B2
Two-part compositions including a uretdione-containing material and inorganic filler, products, and methods
Kolby L. White, Woodbury, MN (US); Li Yao, Woodbury, MN (US); Joseph D. Rule, Woodbury, MN (US); Matthew J. Kryger, Hudson, WI (US); and Michael A. Kropp, Cottage Grove, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/770,366
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 10, 2020, PCT No. PCT/IB2020/061764
§ 371(c)(1), (2) Date Apr. 20, 2022,
PCT Pub. No. WO2021/124033, PCT Pub. Date Jun. 24, 2021.
Claims priority of provisional application 62/950,219, filed on Dec. 19, 2019.
Prior Publication US 2022/0396658 A1, Dec. 15, 2022
Int. Cl. C08G 18/12 (2006.01); C08G 18/22 (2006.01); C08G 18/32 (2006.01); C08G 18/38 (2006.01); C08G 18/48 (2006.01); C08G 18/79 (2006.01); C08K 3/22 (2006.01); C09J 175/08 (2006.01)
CPC C08G 18/12 (2013.01) [C08G 18/227 (2013.01); C08G 18/3206 (2013.01); C08G 18/3876 (2013.01); C08G 18/4804 (2013.01); C08G 18/4825 (2013.01); C08G 18/4854 (2013.01); C08G 18/798 (2013.01); C08K 3/22 (2013.01); C09J 175/08 (2013.01); C08K 2003/2227 (2013.01); C08K 2201/001 (2013.01); C09J 2203/326 (2013.01); C09J 2203/33 (2013.01); Y10T 428/2896 (2015.01)] 17 Claims
 
1. A two-part composition comprising:
1) a first part comprising a polymeric material comprising:
a) a polymerized reaction product of a polymerizable composition comprising components, the components comprising:
i) a uretdione-containing material comprising a reaction product of a diisocyanate reacted with itself;
ii) a first hydroxyl-containing compound having more than one OH group; and
iii) an optional second hydroxyl-containing compound having a single OH group, wherein the second hydroxyl-containing compound is a primary alcohol or a secondary alcohol; and
b) 40% by weight or greater of an inorganic filler, based on the total weight of the polymeric material;
wherein the polymerized reaction product comprises a uretdione functionality of 1.3 to 2.5 and wherein the polymerized reaction product has a number average molecular weight (Mn) of 1100 grams per mole (g/mol) or greater; and
2) a second part comprising:
a) a polythiol having an average sulfhydryl group functionality of 2 or greater; and
b) 40% by weight or greater of an inorganic filler, based on the total weight of the second part.