Chlorohydrin and cationic compounds having high affinity for pulp or paper
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07D-211/194
C07D-405/12
C07D-405/00
D21H-021/14
D21C-009/00
출원번호
US-0658924
(2000-09-11)
발명자
/ 주소
Cunkle,Glen T.
Devore,David
Thompson,Thomas F.
출원인 / 주소
Ciba Specialty Chemicals Corporation
인용정보
피인용 횟수 :
3인용 특허 :
14
초록▼
Selected chlorohydrin and cationic compounds containing nitroxide or hydroxylamine moieties are effective in stabilizing pulp or paper, especially pulp or paper containing lignin, against yellowing and discoloration due to the adverse effects of light. These compounds are added at various points in
Selected chlorohydrin and cationic compounds containing nitroxide or hydroxylamine moieties are effective in stabilizing pulp or paper, especially pulp or paper containing lignin, against yellowing and discoloration due to the adverse effects of light. These compounds are added at various points in the paper-making process, especially at the wet ends, making the need for water soluble or water dispersible materials having high affinity for pulp or paper essential. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents and metal chelating agents. Combinations of hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective.
대표청구항▼
What is claimed is: 1. A compound of formula VIII or VIIIA where n is 1 or 2 and m ranges from 2 to 6; E is oxyl, hydroxyl, hydrogen, alkyl, alkyl substituted by hydroxyl, by oxo or by carboxy, alkyl interrupted by oxygen, by--COO--or by--OCO--, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicyclo
What is claimed is: 1. A compound of formula VIII or VIIIA where n is 1 or 2 and m ranges from 2 to 6; E is oxyl, hydroxyl, hydrogen, alkyl, alkyl substituted by hydroxyl, by oxo or by carboxy, alkyl interrupted by oxygen, by--COO--or by--OCO--, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, alkoxy, alkoxy substituted by hydroxyl, by oxo or by carboxy, alkoxy interrupted by oxygen, by--COO--or by--OCO--, cycloalkoxy, alkenyloxy, cycloalkenyloxy, aralkyl, aralkoxy, acyl, RCOO--, ROCOO--, RNCOO--or chloro where R is an aliphatic or aromatic moiety, when n is 1, R1 is hydrogen, alkyl of 1 to 18 carbon atoms, alkenyl of 2 to 18 carbon atoms, propargyl, glycidyl, alkyl of 2 to 50 carbon atoms interrupted by one to twenty oxygen atoms, alkyl of 2 to 50 carbon atoms substituted by one to ten hydroxyl groups or both interrupted by said oxygen atoms and substituted by said hydroxyl groups, or R1 is alkyl of 1 to 4 carbon atoms substituted by a carboxy group or by--COOZ where Z is hydrogen, alkyl of 1 to 4 carbon atoms or phenyl, or where Z is said alkyl substituted by--(COO-) nMn+ where n is 1-3 and M is a metal ion from the 1st, 2nd or 3rd group of the periodic table or is Zn, Cu, Ni or Co, or M is a group Nn+ (R2)4 where R2 is hydrogen, alkyl of 1 to 8 carbon atoms or benzyl, or when n is 2, R1 is alkylene of 1 to 12 carbon atoms, alkenylene of 4 to 12 carbon atoms, xylylene or alkylene of 1 to 50 carbon atoms interrupted by one to twenty oxygen atoms, substituted by one to ten hydroxyl groups or both interrupted by said oxygen atoms and substituted by said hydroxyl groups, X is an inorganic or organic anion, where the index j equals the number of ammonium ions in the formula divided by the valency of X; and the total charge of cations is equal to the total charge of anions. 2. A compound according to claim 1 wherein the anion X is phosphate, phosphonate, carbonate, bicarbonate, nitrate, chloride, bromide, iodide bisulfite, sulfite, bisulfate, sulfate, borate, formate, acetate, benzoate, citrate, oxalate, tartrate, acrylate, polyacrylate, fumarate, maleate, itaconate, glycolate, gluconate, malate, mandelate, tiglate, ascorbate, polymethacrylate, a carboxylate of nitrilotriacetic acid, hydroxyethylethylenediaminetriacetic acid, ethylenediaminetetraacetic acid or of diethylenetriaminepentaacetic acid, a diethylenediaminetetraacetic acid or of diethylenetriaminepentaacetic acid, an alkylsulfonate or an arylsulfonate. 3. A compound according to claim 1 wherein E is selected from oxyl, hydroxyl, C1-C18 alkoxy; C3-C18 alkoxy substituted by hydroxyl, oxo or carboxy or interrupted by oxygen or carboxy; C5-C12 cycloalkoxy; C3-C12 alkenyloxy; cyclohexenyloxy; aralkyl or aralkoxy of 7 to 15 carbon atoms; C1-C12 acyl; R(C═O)O--, RO(C═O)O--, RN(C═ O)O--, where R is C 1-C18alkyl, phenyl, C7-C 15phenylalkyl, cyclohexyl, C2-C3alkenyl. 4. A compound according to claim 1 of formula VIII. 5. A compound according to claim 4, wherein m is 2 or 3; E is oxyl, hydroxyl, or C1-C8alkyl; R 1, when n is 1, is H or C1-C8 alkyl, or, when n is 2, is alkylene of 2-12 carbon atoms; and X is chloride, bromide or citrate.
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이 특허에 인용된 특허 (14)
Cunkle Glen T. (Stamford CT) Babiarz Joseph E. (Amawalk NY), 2,6-diarylpiperidin-1-yl substituted 2-butene stabilizers.
Cunkle Glen T. ; Gande Matthew E. ; Seltzer Raymond, Derivatives of 1-oxyl-4-amino-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth)acrylate monomers.
Cunkle Glen T. ; Gande Matthew E. ; Seltzer Raymond ; Thompson Thomas F., Derivatives of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth)acrylate monomers.
Seltzer Raymond R. ; Wolf Jean-Pierre,CHX ; Heitner Cyril,CAX ; Schmidt John A.,CAX ; McGarry Peter F.,CAX ; Cunkle Glen T. ; Nelson Randall B., Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives.
Gande Matthew E. ; Cunkle Glen T. ; Gatechair Leslie R. ; Pastor Stephen D. ; Seltzer Raymond ; Winter Roland A.E., Polymerization inhibition of acrylates using blends of nitroxides.
Babiarz Joseph E. ; Pastor Stephen D. ; Cunkle Glen T., Process for the synthesis of 4-substituted N-[(alk-2-en-1-yl)oxy]-and N-aralkyloxy-2,2,6,6-tetraalkylpiperidines.
Babiarz Joseph E. (Amawalk NY) Cunkle Glen T. (Stamford CT) Rutsch Werner (Fribourg CHX), Substituted 1,4-diamino-2-butene stabilizers and stabilized compositions.
Cunkle Glen T. (Stamford CT) Ravichandran Ramanathan (Nanuet NY) Sabrsula Donald J. (Peekskill NY), Substituted 1-hydroxy-2,6-diaryl-4-acyloxypiperidines or 1-hydroxy-2,6-diaryl-4-acylaminopiperidines and stabilized comp.
Cunkle Glen T. (Stamford CT) Ravichandran Ramanathan (Nanuet NY) Sabrsula Donald J. (Peekskill NY), Substituted 1-hydroxy-2,6-diaryl-4-acyloxypiperidines or 1-hydroxy-2,6-diaryl-4-acylaminopiperidines and stabilized comp.
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