Glyoxal/cyclic urea condensates
Patent 4284758 Issued on August 18, 1981. Estimated Expiration Date: 
November 17, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 17, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3260565 3590100 3862224 InventorAssigneeApplicationNo. 06/207248 filed on 11/17/1980US Classes:528/245, From glyoxal or compound having two or more -C(=O)-H groups per se528/249, Nonaldehyde or nonaldehyde derivative heterocyclic compound contains an oxygen atom as a ring member of the heterocyclic compound528/252, Nonaldehyde or nonaldehyde derivative heterocyclic compound contains only two nitrogen atoms as ring members of the heterocyclic compound528/256, With reactant containing >NC(=O)- or >N-C(=S)- group, e.g., urea, etc.528/259, With >N-C(=X)-N< -containing reactant wherein X is a chalcogen atom528/260, Two or more >N-C(=X)-N< -containing reactants544/242, 1,3-diazines544/67, 1,3,5-oxadiazines548/316.4, Chalcogen bonded directly to ring carbon of the diazole ring (e.g., N-vinyl-N, N`ethylene urea, etc.)548/317.1, Plural chalcogens bonded directly to ring carbons of the diazole ring548/317.5, Three chalcogens bonded directly to ring carbons of the diazole ring548/318.5, Having -C(=X)-, wherein X is chalcogen, bonded directly to the diazole ring548/326.1, The diazole ring is further unsubstituted (e.g., cyclic ethylene urea, etc.)8/185, Urea-aldehyde condensate8/186Alkylatedurea-aldehyde condensateExaminersPrimary: Clingman, A. LionelAttorney, Agent or FirmInternational ClassesC08G 12/00 (20060101)C08G 12/42 (20060101) D06M 15/423 (20060101) D06M 15/37 (20060101) AbstractAlkylated glyoxal/cyclic urea condensates are excellent formaldehyde-free crosslinking resins for textile fabrics.Field of SearchFrom glyoxal or compound having two or more -C(=O)-H groups per seNonaldehyde or nonaldehyde derivative heterocyclic compound contains an oxygen atom as a ring member of the heterocyclic compound Nonaldehyde or nonaldehyde derivative heterocyclic compound contains only two nitrogen atoms as ring members of the heterocyclic compound With reactant containing >NC(=O)- or >N-C(=S)- group, e.g., urea, etc. With >N-C(=X)-N< -containing reactant wherein X is a chalcogen atom |
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