Back to results
US 2023/0339843 A1Published application
Composition for Removing Polymer
AssigneeDongwoo Fine-Chem Co., Ltd.
InventorsSoon-Hong Pang, Kyeong-Muk Choi, Han-Byeol Kang
Life of this patent
Estimating the term…
Abstract
Disclosed is a composition for removing polymers. The composition contains a fluorinated alkyl compound, a polar aprotic solvent, and an acyclic secondary or tertiary amine compound.
Claims13
1:
- A composition for removing a polymer, the composition comprising:
- a fluorinated alkyl compound;
- a polar aprotic solvent;
- and an amine compound, wherein the amine compound comprises an acyclic secondary amine compound or an acyclic tertiary amine compound;
- and
- wherein the polar aprotic solvent comprises at least one solvent selected from the group consisting of ketone-based, acetate-based, amide-based, pyridine-based, morpholine-based, pyrrolidone-based, urea-based, phosphate-based, sulfoxide-based, nitrile-based, carbonate-based, oxazolidone-based, and piperazine-based solvents.
3 more elements
2:
- The composition according to claim 1, wherein the amine compound is a compound represented by one of Formulas 1 to 3:
- In Formula 1, R1 and R2 each independently represent a liner or branched alkyl group having one to eight carbon atoms (C1 to C8),
- In Formula 2, R3 to R5 each independently represent a liner or branched alkyl group having one to eight carbon atoms (C1 to C8),
- In Formula 3, n represents a positive integer among 3, 4, 5, and 6.
1 more element
3:
- The composition according to claim 1, wherein the fluorinated alkyl compound comprises one or more compounds represented by any one of Formula 4-1 and Formula 4-2:
- In Formula 4-1, R6 to R9 each independently represent an alkyl group having three to ten carbon atoms (C3 to C10),
- In Formula 4-2, R10 to R12 each independently represent an alkyl group having one to ten carbon atoms (C1 to C10).
(canceled)
5:
- The composition according to claim 1, wherein the amine compound comprises at least one compound selected from the group consisting of tripropylamine, tributylamine, tripentylamine, triisobutylamine, dimethyloctylamine, diethylbutylamine, diisobutylamine, N,N,N′,N′-tetramethyl-1,3-diaminopropane, N,N,N′,N′-tetramethyl-1,4-diaminobutane, and N,N,N′,N′-tetramethyl-1,6-diaminohexane.
6:
- The composition according to claim 1, wherein the amine compound has a boiling point in a range of 140° C. to 300° C.
7:
- The composition according to claim 1, wherein the composition is used to remove silicone-based polymers.
8:
- A composition for removing a polymer, the composition comprising:
- a fluorinated alkyl compound;
- a polar aprotic solvent;
- and an amine compound, wherein the amine compound comprises an acyclic secondary amine compound or an acyclic tertiary amine compound;
- and
- wherein the composition contains 0.1 to 20% by weight of the fluorinated alkyl compound, 60 to 99.89% by weight of the polar aprotic solvent, and 0.01 to 20% by weight of the amine compound, with respect to the total weight of the composition.
3 more elements
9:
- The composition according to claim 8, wherein the amine compound is a compound represented by one of Formulas 1 to 3:
- In Formula 1, R1 and R2 each independently represent a liner or branched alkyl group having one to eight carbon atoms (C1 to C8),
- In Formula 2, R3 to R5 each independently represent a liner or branched alkyl group having one to eight carbon atoms (C1 to C8),
- In Formula 3, n represents a positive integer among 3, 4, 5, and 6.
1 more element
10:
- The composition according to claim 8, wherein the fluorinated alkyl compound comprises one or more compounds represented by any one of Formula 4-1 and Formula 4-2:
- In Formula 4-1, R6 to R9 each independently represent an alkyl group having three to ten carbon atoms (C3 to C10),
- In Formula 4-2, R10 to R12 each independently represent an alkyl group having one to ten carbon atoms (C1 to C10).
11:
- The composition according to claim 8, wherein the amine compound comprises at least one compound selected from the group consisting of tripropylamine, tributylamine, tripentylamine, triisobutylamine, dimethyloctylamine, diethylbutylamine, diisobutylamine, N,N,N′,N′-tetramethyl-1,3-diaminopropane, N,N,N′,N′-tetramethyl-1,4-diaminobutane, and N,N,N′,N′-tetramethyl-1,6-diaminohexane.
12:
- The composition according to claim 8, wherein the amine compound has a boiling point in a range of 140° C. to 300° C.
13:
- The composition according to claim 8, wherein the composition is used to remove silicone-based polymers.
Dependencies are inferred from the claim text.