02-07-2020 дата публикации
Номер: US20200207940A1
Принадлежит:
Methods and compositions for depolymerizing the polymer component of fiber reinforced polymers to facilitate the recovery of free fibers. 1. A depolymerization composition comprising an ionic salt and a protective compound that protects the ionic salt from degradation to form a recycle admixture wherein the admixture has a temperature at which the at least one protective compound and the ionic salt are each fluids.2. The depolymerization composition of wherein the ionic salt contains at least one of C claim 1 , H claim 1 , N claim 1 , and P.3. The depolymerization composition of wherein the ionic salt includes one or more of a phosphonium ion claim 1 , ammonium ion claim 1 , hexafluorophosphate ion claim 1 , imidazolium ion claim 1 , pyrrolidinium ion claim 1 , pyridinium ion claim 1 , imide on claim 1 , sulfonate ion claim 1 , and a trifluoromethane sulfonyl imide (TFSI) ion.4. The depolymerization composition of wherein the ionic salt includes a phosphonium ion.5. The depolymerization composition of wherein the ionic salt includes at least one phenyl group.6. The depolymerization composition of wherein the ionic salt is one or more of 3-[2-(4-nitro-phenyl)-2-oxoethyl]-1-methylimidazolium (CHNO); 3-[2-(3-chlorophenyl)-2-oxoethyl]-1-methylimidazolium (CHClNO); 3-[2-(4-chlorophenyl)-2-oxoethyl]-1-methylimidazolium (CHClNO); 1-ethyloxy-3-[4-nitrobenzyl] imidazolium (CHNO); 1-methyloxy-3-[2-(4-chlorophenyl)-2-oxoethyl]imidazolium (CHClNO); 3-[2-(4-nitro-phenyl)-2-oxoethyl]-1-methylimidazolium (CHNO); 1-etheneoxy-3-[2 claim 1 ,4-dichlorobenzyl] imidazolium (CHClNO); 1-ethyloxy-3-[2 claim 1 ,4-dichlorobenzyl] imidazolium (CHClNO);{'sub': 12', '11', '2', '2', '13', '17', '2', '13', '25', '2', '13', '25', '2', '13', '25', '2', '2', '13', '15', '2', '9', '17', '2', '9', '17', '2', '2', '10', '10', '2', '10', '19', '2', '10', '11', '2', '10', '13', '4', '10', '11', '2', '2', '10', '9', '2', '2', '11', '13', '2', '11', '13', '2', '11', '21', '2', '11', '21', '2', '11', '21', ...
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