US4526972A
Expired / Lapsed
US
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Ultraviolet light stabilizing sterically hindered polyoxyalkylene amines
Assignee: Huntsman Corp
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Filing: 1984-06-27
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Granted: 1985-07-02
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Expires: 2004-06-27
Abstract
Abstract This invention relates to ultraviolet light stabilizing hindered polyoxyalkylene polyamines. The products of the present invention can be utilized as ultraviolet light stabilizers for a wide variety of commercial products such as water base paints, oil base paints, polyethylenes, polypropylenes, polyurethanes, etc. The products have the formula: ##STR1## wherein: R represents an alkylene, alkyl, aralkyl, alkaryl or aryl group containing 1 to 24 carbon atoms, R' represents hydrogen, methyl or ethyl, n represents a number having an average value of 1 to 70, and x represents an integer having a value of 1 to 3. In a modified form of the invention, the products are useful also to inhibit oxidation of such products. The compounds have the formula: ##STR2## wherein: the letters and subscripts of formula (II) have the same meaning as the letters and subscripts of formula (I), except that x equals 1 or 2 and R" represents an alkylene group or: ##STR3##
Inventors
- 👤 George P. Speranza
- 👤 Robert A. Grigsby, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/56; C07D211/58; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
53 words
A compound having the formula: ##STR17## wherein: R represents an alkylene, alkyl, aralkyl, alkaryl or aryl group containing 1 to 24 carbon atoms, R' represents hydrogen, methyl or ethyl, n represents a number having an average value of 1 to 70, and x represents an integer having a value of 1 to 3.
Claim 2
Dependent Claim
53 words
A compound having the formula: ##STR17## wherein: R represents an alkylene, alkyl, aralkyl, alkaryl or aryl group containing 1 to 24 carbon atoms, R' represents hydrogen, methyl or ethyl, n represents a number having an average value of 1 to 70, and x represents an integer having a value of 1 to 3.
Claim 3
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR18##
Claim 4
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR19##
Claim 5
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR20##
Claim 6
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR21##
Claim 7
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR22##
Claim 8
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR23##
Claim 9
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR24##
Claim 10
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR25##
Claim 11
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR26##
Claim 12
Dependent Claim
10 words
A compound as in claim 1 having the formula: ##STR27##
Claim 13
Dependent Claim
111 words
A Mannich condensate derivative of formaldehyde, a ditertiary butyl phenol and a compound having the formula: ##STR28## wherein: R represents an alkylene, alkyl, aralkyl, alkaryl or aryl group containing 1 to 24 carbon atoms, R' represents hydrogen, methyl or ethyl, n represents a number having an average value of 1 to 70, and x represents an integer having a value of 1 to 3; said Mannich condensate derivative having the following formula: ##STR29## wherein: the letters and subscripts of formula (II) have the same meaning as the letters and subscripts of formula (I), except that x has a value of 1 to 2, and: R" represents an alkylene group or ##STR30##
Claim 14
Dependent Claim
111 words
A Mannich condensate derivative of formaldehyde, a ditertiary butyl phenol and a compound having the formula: ##STR28## wherein: R represents an alkylene, alkyl, aralkyl, alkaryl or aryl group containing 1 to 24 carbon atoms, R' represents hydrogen, methyl or ethyl, n represents a number having an average value of 1 to 70, and x represents an integer having a value of 1 to 3; said Mannich condensate derivative having the following formula: ##STR29## wherein: the letters and subscripts of formula (II) have the same meaning as the letters and subscripts of formula (I), except that x has a value of 1 to 2, and: R" represents an alkylene group or ##STR30##
Claim 15
Dependent Claim
10 words
A compound as in claim 12 having the formula: ##STR31##
Claim 16
Dependent Claim
10 words
A compound as in claim 12 having the formula: ##STR32##
Claim 17
Dependent Claim
10 words
A compound as in claim 12 having the formula: ##STR33##
Claim 18
Dependent Claim
10 words
A compound as in claim 12 having the formula: ##STR34##
Claim 19
Dependent Claim
10 words
A compound as in claim 12 having the formula: ##STR35##
Claim 20
Dependent Claim
10 words
A compound as in claim 12 having the formula: ##STR36##
Claim 21
Independent Claim
54 words
A method which comprises reacting at least one molar equivalent of 2,2,6,6-tetramethyl-4-piperidone under Schiff base raction conditions with an amine having the formula: ##STR37## wherein x has an average value of from about 2 to about 60 and thereafter hydrogenating the resultant Schiff base product to thereby provide a light stabilizing sterically hindered polyoxyalkylenepolyamine.
Claim 22
Independent Claim
54 words
A method which comprises reacting at least one molar equivalent of 2,2,6,6-tetramethyl-4-piperidone under Schiff base raction conditions with an amine having the formula: ##STR37## wherein x has an average value of from about 2 to about 60 and thereafter hydrogenating the resultant Schiff base product to thereby provide a light stabilizing sterically hindered polyoxyalkylenepolyamine.
Claim 23
Dependent Claim
48 words
A method as in claim 19 wherein the 2,2,6,6-tetramethyl-4-piperidone is reacted with one molar equivalent of the amine and wherein the hydrogenated Schiff base product is further reacted with 2,6-ditertbutylphenol and formaldehyde under Mannich base reaction conditions to thereby provide an oxidation inhibiting, light stabilizing sterically hindered polyoxyalkylenepolyamine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |