Process for the preparation of a hindered amine light stabilizer salt
First Claim
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1. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound comprising the step of combining the following:
- (A) at least one acidic phosphorus containing compound selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
n is 2 to 500; and
(B) at least one hindered amine light stabilizer selected from compounds having the formulae;
wherein R3, R4, R5, and R6 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl;
R7 is selected from hydrogen, —
OR6, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl;
R8 is selected from hydrogen;
C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, —
Y1—
R1 or a succinimido group having the formula R9 and R10 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, and substituted C3-C8-cycloalkyl;
R9 and R10 may collectively represent a divalent group forming a ring with the nitrogen atom to which they are attached;
L1 is a divalent linking group selected from C2-C22-alkylene;
—
(CH2CH2—
Y1)1-3—
CH2CH2—
;
C3-C8-cycloalkylene;
arylene;
or —
CO—
L2—
OC—
;
L2 is selected from C1-C22-alkylene, arylene, —
(CH2CH2—
Y1)1-3—
CH2CH2— and
C3-C8-cycloalkylene;
Y1 is selected from —
OC(O)—
, —
NHC(O)—
, —
O—
, —
S—
, —
N(R1)—
;
Y2 is selected from —
O—
or —
N(R1)—
;
Z is a positive integer of up to about 20;
m1, is selected from 0 to about 10;
n1 is a positive integer selected from 2 to about 12;
R11, and R12 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, and radical A wherein radical A is selected from the following structures;
Radical A structures wherein * designates the position of attachment wherein at least one of R11 and R12 is also a radical A; and
wherein the ratio of the number of phosphorus atoms in the acidic phosphorus-containing compound to the number of basic nitrogen atoms in the HALS is about 0.25 to about 2;
wherein the addition salt of components (A) and (B) is formed.
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Abstract
This invention relates to a process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound. The process comprises the step of combining at least one hindered amine light stabilizer and an acidic phosphorus containing compound so that an addition salt is formed as an isolatable solid.
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Citations
60 Claims
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1. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound comprising the step of combining the following:
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(A) at least one acidic phosphorus containing compound selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
n is 2 to 500; and
(B) at least one hindered amine light stabilizer selected from compounds having the formulae;
wherein R3, R4, R5, and R6 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl;
R7 is selected from hydrogen, —
OR6, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl;
R8 is selected from hydrogen;
C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, —
Y1—
R1 or a succinimido group having the formulaR9 and R10 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, and substituted C3-C8-cycloalkyl;
R9 and R10 may collectively represent a divalent group forming a ring with the nitrogen atom to which they are attached;
L1 is a divalent linking group selected from C2-C22-alkylene;
—
(CH2CH2—
Y1)1-3—
CH2CH2—
;
C3-C8-cycloalkylene;
arylene;
or —
CO—
L2—
OC—
;
L2 is selected from C1-C22-alkylene, arylene, —
(CH2CH2—
Y1)1-3—
CH2CH2— and
C3-C8-cycloalkylene;
Y1 is selected from —
OC(O)—
, —
NHC(O)—
, —
O—
, —
S—
, —
N(R1)—
;
Y2 is selected from —
O—
or —
N(R1)—
;
Z is a positive integer of up to about 20;
m1, is selected from 0 to about 10;
n1 is a positive integer selected from 2 to about 12;
R11, and R12 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, and radical A wherein radical A is selected from the following structures;
Radical A structures wherein * designates the position of attachment wherein at least one of R11 and R12 is also a radical A; and
wherein the ratio of the number of phosphorus atoms in the acidic phosphorus-containing compound to the number of basic nitrogen atoms in the HALS is about 0.25 to about 2;
wherein the addition salt of components (A) and (B) is formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound comprising the following steps:
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(1) the acidic phosphorus containing compound is phosphorous acid which is dissolved in at least one polar solvent (I) wherein the polar solvent(s) (I) is selected from methanol, ethanol, n-propanol, isopropanol, n-butanol, t-butanol, isobutanol, 2-butanol, n-hexanol, and octanol;
(2) at least one hindered amine light stabilizer which is dissolved in at least one aromatic hydrocarbon solvent (II) wherein the at least one hindered amine light stabilizer is selected compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
R3, R4, R5, and R6 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl;
R7 is selected from hydrogen, —
OR6, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl;
R8 is selected from hydrogen;
C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, —
Y1—
R1 or a succinimido group having the formulaR9 and R10 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, and substituted C3-C8-cycloalkyl;
R9 and R10 may collectively represent a divalent group forming a ring with the nitrogen atom to which they are attached;
L1 is a divalent linking group selected from C2-C22-alkylene;
—
(CH2CH2—
Y1)1-3—
CH2CH2—
;
C3-C8-cycloalkylene;
arylene;
or —
CO—
L2—
OC—
;
L2 is selected from C1-C22-alkylene, arylene, —
(CH2CH2—
Y1)1-3—
CH2CH2— and
C3-C8-cycloalkylene;
Y1 is selected from —
OC(O)—
, —
NHC(O)—
, —
O—
, —
S—
, —
N(R1)—
;
Y2 is selected from —
O—
or —
N(R1)—
;
Z is a positive integer of up to about 20;
m1, is selected from 0 to about 10;
n1 is a positive integer selected from 2 to about 12;
R11, and R12 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, and radical A wherein radical A is selected from the following structures;
Radical A structures wherein * designates the position of attachment. wherein at least one of R11 and R12 is an A radical;
wherein the addition salt of components (A) and (B) is formed;
and wherein the at least one aromatic hydrocarbon solvent (II) is selected from toluene, xylene and benzene;
(3) components (A) and (B) are subsequently mixed to form a homogenous solution of the addition salt.; and
(4) the homogeneous solution of step (3) is subsequently mixed with an nonpolar aliphatic hydrocarbon solvent (III) so that the addition salt of components (A) and (B) precipitates. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and phosphorous acid comprising the following steps:
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(1) phosphorous acid is dissolved in at least one polar solvent (I) selected from methanol and isopropanol; and
(2) at least one hindered amine light stabilizer is dissolved in at least one aromatic hydrocarbon solvent (II) wherein the hindered amine light stabilizer has the formula;
wherein R3=R4=R5=R6=R7=methyl, (R3)(R4)N—
collectively represent morpholino, L1 is C1 to C6 alkylene, and Z is 1 to 6;
wherein the at least one aromatic hydrocarbon solvent (II) is selected from toluene, xylene, and benzene;
(3) components (A) and (B) are subsequently mixed to form a homogenous solution of the addition salt.; and
(4) the homogeneous solution of step (3) is subsequently mixed with heptane;
wherein the addition salt of components (A) and (B) precipitates.
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41. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound comprising the step of mixing, grinding, and/or pulverizing and, subsequently, melt extruding the following:
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(A) at least one acidic phosphorus containing compound selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
n is 2 to 500; and
(B) at least one hindered amine light stabilizer selected from compounds having the formulae;
wherein R3, R4, R5, and R6 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl;
R7 is selected from hydrogen, —
OR6, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl;
R8 is selected from hydrogen;
C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, —
Y1—
R1 or a succinimido group having the formulaR9 and R10 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, and substituted C3-C8-cycloalkyl;
R9 and R10 may collectively represent a divalent group forming a ring with the nitrogen atom to which they are attached;
L1 is a divalent linking group selected from C2-C22-alkylene;
—
(CH2CH2—
Y1)1-3—
CH2CH2—
;
C3-C8-cycloalkylene;
arylene;
or —
CO—
L2—
OC—
;
L2 is selected from C1-C22-alkylene, arylene, —
(CH2CH2—
Y1)1-3—
CH2CH2— and
C3-C8-cycloalkylene;
Y1 is selected from —
OC(O)—
, —
NHC(O)—
, —
O—
, —
S—
, —
N(R1)—
;
Y2 is selected from —
O—
or —
N(R1)—
;
Z is a positive integer of up to about 20;
m1, is selected from 0 to about 10;
n1 is a positive integer selected from 2 to about 12;
R11, and R12 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, and radical A wherein radical A is selected from the following structures;
Radical A structures wherein * designates the position of attachment wherein at least one of R11 and R12 is also a radical A; and
wherein the ratio of the number of phosphorus atoms in the acidic phosphorus-containing compound to the number of basic nitrogen atoms in the HALS is 0.5 to about 1.1;
(C) a polymer selected from polyesters and polycarbonates; and
wherein the addition salt of components (A) and (B) is formed. - View Dependent Claims (42, 43, 44)
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45. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound comprising the following steps:
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(1) component (A) is dissolved in a polar solvent (I) and component (B) is dissolved in an non-polar aliphatic hydrocarbon solvent (III) which is immiscible with polar solvent (I);
(2) components (A) and (B) are mixed to form a biphasic mixture wherein the addition salt is in the polar solvent phase;
(3) the biphasic mixture is separate into the two solutions of step 2;
(4) feeding the polar solution of step 3 to a vessel containing the nonpolar solvent of step (3) and vaporizing polar solvent (I) as the polar solvent of step 3 is added to the vessel to produce a slurry of the salt in the nonpolar aliphatic hydrocarbon solvent (III);
wherein component (A) is selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
n is 2 to 500; and
wherein component (B) is selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
R3, R4, R5, and R6 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl;
R7 is selected from hydrogen, —
OR6, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl;
R8 is selected from hydrogen;
C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, —
Y1—
R1 or a succinimido group having the formulaR9 and R10 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, and substituted C3-C8-cycloalkyl;
R9 and R10 collectively represent a divalent group forming a ring with the nitrogen atom to which they are attached;
L1 is a divalent linking group selected from C2-C22-alkylene;
—
(CH2CH2—
Y1)1-3—
CH2CH2—
;
C3-C8-cycloalkylene;
arylene;
or —
CO—
L2—
OC—
;
L2 is selected from C1-C22-alkylene, arylene, —
(CH2CH2—
Y1)1-3—
CH2CH2— and
C3-C8-cycloalkylene;
Y1 is selected from —
OC(O)—
, —
NHC(O)—
, —
O—
, —
S—
, —
N(R1)—
;
Y2 is selected from —
O—
or —
N(R1)—
;
Z is a positive integer of up to about 20;
m1, is selected from 0 to about 10;
n1 is a positive integer selected from 2 to about 12;
R11 and R12 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, and radical A wherein at least one of R11 and R12 is also a Radical A selected from the following structures;
Radical A structures wherein * designates the position of attachment;
wherein the addition salt of components (A) and (B) is formed. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound comprising the following steps:
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(1) at least one acidic phosphorus containing compound (Component A) and at least one at least one hindered amine light stabilizer (Component B) is mixed in a polar solvent until a homogeneous solution is obtained;
(2) the acid addition salt is isolated by the process of spray drying;
wherein component (A) is selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
n is 2 to 500; and
wherein component (B) is selected from compounds having the formulae;
wherein R1 and R2 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, and aryl;
R3, R4, R5, and R6 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl;
R7 is selected from hydrogen, —
OR6, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl;
R8 is selected from hydrogen;
C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, —
Y—
R1 or a succinimido group having the formulaR9 and R10 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, and substituted C3-C8-cycloalkyl;
R9 and R10 collectively represent a divalent group forming a ring with the nitrogen atom to which they are attached;
L1 is a divalent linking group selected from C2-C22-alkylene;
—
(CH2CH2—
Y1)1-3—
CH2CH2—
;
C3-C8-cycloalkylene;
arylene;
or —
CO—
L2—
OC—
;
L2 is selected from C1-C22-alkylene, arylene, —
(CH2CH2—
Y1)1-3—
CH2CH2— and
C3-C8-cycloalkylene;
Y1 is selected from —
OC(O)—
, —
NHC(O)—
, —
O—
, —
S—
, —
N(R1)—
;
Y2 is selected from —
O—
or —
N(R1)—
;
Z is a positive integer of up to about 20;
m1, is selected from 0 to about 10;
n1 is a positive integer selected from 2 to about 12;
R11 and R12 are independently selected from hydrogen, C1-C22-alkyl, substituted C1-C22-alkyl, C3-C8-cycloalkyl, substituted C3-C8-cycloalkyl, heteroaryl, aryl, and radical A wherein at least one of R11 and R12 is also a Radical A selected from the following structures;
Radical A structures wherein * designates the position of attachment;
wherein the addition salt of components (A) and (B) is formed. - View Dependent Claims (57, 58, 59, 60)
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Specification