US 12,215,185 B2
Recyclable and reworkable epoxy resins
Chandan Kumar Singh, Rayong (TH); Pradip Kumar Dubey, Rayong (TH); Weerawat Sripet, Rayong (TH); and Kanyarat Sittipummongkol, Rayong (TH)
Assigned to ADITYA BIRLA CHEMICALS (THAILAND) LTD. (EPOXY DIVISION), Bangkok (TH)
Filed by ADITYA BIRLA CHEMICALS (THAILAND) LTD. (EPOXY DIVISION), Bangkok (TH)
Filed on Aug. 3, 2021, as Appl. No. 17/392,907.
Application 17/392,907 is a continuation of application No. PCT/IB2019/060653, filed on Dec. 11, 2019.
Claims priority of application No. 201911004247 (IN), filed on Feb. 4, 2019.
Prior Publication US 2021/0363287 A1, Nov. 25, 2021
Int. Cl. C08G 59/02 (2006.01); C08G 59/06 (2006.01); C08G 59/24 (2006.01); C08G 59/30 (2006.01); C08G 59/32 (2006.01); C08G 59/50 (2006.01); C08G 59/68 (2006.01); C08J 11/26 (2006.01); C08J 11/28 (2006.01); C08L 63/00 (2006.01)
CPC C08G 59/245 (2013.01) [C08G 59/063 (2013.01); C08G 59/306 (2013.01); C08G 59/3218 (2013.01); C08G 59/3227 (2013.01); C08G 59/3281 (2013.01); C08G 59/5026 (2013.01); C08G 59/687 (2013.01); C08J 11/26 (2013.01); C08J 11/28 (2013.01); C08J 2363/00 (2013.01); C08L 63/00 (2013.01)] 11 Claims
 
1. A process for preparing an epoxy resin component having a structural Formula I for an epoxy resin system, the process comprising:
epoxidizing a compound having a structural Formula VI with a percarboxylic acid compound or hydrogen peroxide to obtain an epoxidized alcohol; and
reacting the epoxidized alcohol with a compound having a structural Formula III or a compound selected from a group consisting of 2-methoxy propene, 2-2 di methoxy propane, 2 ethoxy propene, 2-2 di ethoxy propane, and 2-2 di propoxy propane in the presence of an acidic catalyst to obtain the epoxy resin component having the structural Formula I,
wherein
the compound having the structural Formula VI is represented by:

OG Complex Work Unit Chemistry
wherein R1, R2, and R3, are hydrogen,
R4 is any one of:

OG Complex Work Unit Chemistry
the compound having the structural Formula III is represented by:

OG Complex Work Unit Chemistry
wherein
R1 and R2 are independently hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, aryl, heterocyclic, heterocycloalkyl, cycloalkenyl, heteroaryl, alkoxy, alkoxyaryl, alkoxy alkyl, or aryloxy, and
the epoxy resin component having the structural Formula I is:

OG Complex Work Unit Chemistry
wherein
m=0, 1 or 2 such that
if m=0 then n=4,
if m=1 then n=3, or
if m=2 then n=2,
A is carbon,
D is oxygen,
X is oxygen, and
B is independently alkylene-arylene, arylene-alkylene-arylene, alkylene, or alkylene-cycloalkylene.