Patent number: 7550599
Abstract: Sterically hindered alkoxyamine and hydroxy substituted alkoxyamine stabilizer compounds are made water compatible via certain backbones with affinity towards water. The sterically hindered amines are for example of the formula where for example E and E? are 2-hydroxycyclohexyloxy, 2-hydroxy-2-methylpropoxy, benzyloxy, methoxy, propoxy, hexyloxy, heptyloxy, octyloxy or cyclohexyloxy, Rx is for example —NH2+CH2CH2OH Cl?, —NH3+?OAc, ?NOH, —NHCH(CH3)COO?K+, —NHCH2CH2N(CH3)2+?OAc, —NHCH2CH2SO3?K+, —NHCH(COO?K+)CH2CH2SCH3, —NHCH2COO?K+, —OCH(CH3)COO?K+, —OCH2CH2N(CH3)2+?OAc, —OCH2CH2SO3?K+, —OCH(COO?K+)CH2CH2SCH3 or —OCH2COO31K+, and where R5 comprises repeating units of —(OCH2CH2)—, —(OCH2CH2(CH3))—, —(CH2CHCOOH)—, —(CH2C(CH3)COOH)—, —(CH2CHCOOCH3)—, —(NHCH2CH2)—, —(CH2CHOH)—, —(CH2CHCONH2)— or —(CH2CH(NHCOH))—. These compounds are particularly effective in stabilizing aqueous polymer systems against the deleterious effects of oxidative, thermal and actinic radiation.
Type:
Grant
Filed:
May 25, 2005
Date of Patent:
June 23, 2009
Assignee:
Ciba Specialty Chemicals Corporation
Inventors:
Mervin G. Wood, Robert Detlefsen, James Galbo, Wanda Martin, Paul Kondracki, Michael P. DiFazio, Joseph E. Babiarz
Publication number: 20050261401
Abstract: Sterically hindered alkoxyamine and hydroxy substituted alkoxyamine stabilizer compounds are made water compatible via certain backbones with affinity towards water. The sterically hindered amines are for example of the formula where for example E and E? are 2-hydroxycyclohexyloxy, 2-hydroxy-2-methylpropoxy, benzyloxy, methoxy, propoxy, hexyloxy, heptyloxy, octyloxy or cyclohexyloxy, Rx is for example —NH2+CH2CH2OH Cl?, —NH3+?OAc, ?NOH, —NHCH(CH3)COO?K+, —NHCH2CH2N(CH3)2+?OAc, —NHCH2CH2SO3?K+, —NHCH(COO?K+)CH2CH2SCH3, —NHCH2COO?K+, —OCH(CH3)COO?K+, —OCH2CH2N(CH3)2+?OAc, —OCH2CH2SO3?K+, —OCH(COO?K+)CH2CH2SCH3 or —OCH2COO31K+, and where R5 comprises repeating units of —(OCH2CH2)—, —(OCH2CH2(CH3))—, —(CH2CHCOOH)—, —(CH2C(CH3)COOH)—, —(CH2CHCOOCH3)—, —(NHCH2CH2)—, —(CH2CHOH)—, —(CH2CHCONH2)— or —(CH2CH(NHCOH))—. These compounds are particularly effective in stabilizing aqueous polymer systems against the deleterious effects of oxidative, thermal and actinic radiation.
Type:
Application
Filed:
May 25, 2005
Publication date:
November 24, 2005
Inventors:
Mervin Wood, Robert Detlefsen, James Galbo, Wanda Martin, Paul Kondracki, Michael DiFazio, Joseph Babiarz
