Ethyl Acetate → Propylene glycol methyl ether acetate
Reaction equation
[O:1]1[C:7]2[C:2]1=C(C)C(O)=CC=2.[CH2:10]([O:12][C:13](=[O:15])[CH3:14])[CH3:11]>>[CH3:11][CH:10]([O:12][C:13]([CH3:14])=[O:15])[CH2:2][O:1][CH3:7]Participants
Procedure
An epoxy cresol novolac resin (ECN 1299) was dissolved in a 75:25 solvent solution of ethylacetate:PGMEA to obtain a reaction mixture having a solids content of approximately 20% by weight. Equimolar amounts of 4-hydroxybenzoic acid were added to the reaction mixture. BTEAC was added to the mixture (2% by weight, based upon the weight of epoxy cresol novolac resin), and the reaction mixture was heated to 120° C. in an oil bath under a nitrogen atmosphere for twenty-four hours. The reaction mixture was cooled and formulated into an anti-reflective coating (at a solids content of approximately 5% by weight) by the addition of trimethylolpropane trivinylether (crosslinking agent, obtained from Aldrich Chemical Company) and p-TSA as the catalyst for crosslinking at a temperature of 205° C. Tables 5 and 6 set forth the respective formulations of the mother liquor and anti-reflective coating compositions.
Sources & evidence
- ORD record
- ord-59c60017e2c54f68b369d8fa4f94ab79
- Source dataset
- uspto-grants-2010_02
- Patent number
- USRE041128E1
Reaction notes
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