DSVIHYOAKPVFEH-UHFFFAOYSA-N 4-(hydroxymethyl)-4-methyl-1-phenylpyrazolidin-3-one Chemical group N1C(=O)C(C)(CO)CN1C1=CC=CC=C1 DSVIHYOAKPVFEH-UHFFFAOYSA-N 0.000 claims description 6.LSNNMFCWUKXFEE-UHFFFAOYSA-M bisulfite Chemical group OS()=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 8.CMCWWLVWPDLCRM-UHFFFAOYSA-N Phenidone Chemical compound N1C(=O)CCN1C1=CC=CC=C1 CMCWWLVWPDLCRM-UHFFFAOYSA-N 0.000 claims description 8.CIWBSHSKHKDKBQ-DUZGATOHSA-N (+)-Ascorbic acid Natural products CIWBSHSKHKDKBQ-DUZGATOHSA-N 0.000 claims description 8.239000011780 sodium chloride Substances 0.000 claims description 12.239000003352 sequestering agent Substances 0.000 claims description 12.229910052783 alkali metal Inorganic materials 0.000 claims description 16.229910052709 silver Inorganic materials 0.000 claims description 20.150000001875 compounds Chemical class 0.000 claims description 22.XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34. ![]() -1 alkali metal salt Chemical class 0.000 claims description 34.QIGBRXMKCJKVMJ-UHFFFAOYSA-N benzohydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 48.BTBUEUYNUDRHOZ-UHFFFAOYSA-N borate Chemical compound B() BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims abstract description 28.OC()=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 36 UIIMBOGNXHQVGW-UHFFFAOYSA-M buffer Substances.239000003755 preservative agent Substances 0.000 claims abstract description 52.230000002335 preservative Effects 0.000 claims abstract description 52.239000000654 additive Substances 0.000 claims abstract description 54.239000003795 chemical substances by application Substances 0.000 claims abstract description 134.239000011668 ascorbic acid Substances 0.000 title claims abstract description 64.235000010323 ascorbic acid Nutrition 0.000 title claims abstract description 64.229960005070 ascorbic acid Drugs 0.000 title claims abstract description 70.CIWBSHSKHKDKBQ-JLAZNSOCSA-N Vitamin C Chemical compound CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 title claims abstract description 70.239000000203 mixture Substances 0.000 title claims abstract description 210.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co Priority to US08/863,830 priority Critical patent/US5756271A/en Priority to US08/992,741 priority patent/US5853964A/en Application granted granted Critical Publication of US5756271A publication Critical patent/US5756271A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Eastman Kodak Co Priority date (The priority date is an assumption and is not a legal conclusion. ![]() Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US08/863,830 Inventor Robert John Opitz Silvia Zawadzki Current Assignee (The listed assignees may be inaccurate. ![]() Google Patents Weakly alkaline ascorbic acid developing composition, processing kit and method using sameÄownload PDF Info Publication number US5756271A US5756271A US08/863,830 US86383097A US5756271A US 5756271 A US5756271 A US 5756271A US 86383097 A US86383097 A US 86383097A US 5756271 A US5756271 A US 5756271A Authority US United States Prior art keywords developing packaged developing agent preservative ascorbic acid Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5756271A - Weakly alkaline ascorbic acid developing composition, processing kit and method using same US5756271A - Weakly alkaline ascorbic acid developing composition, processing kit and method using same
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