US4868246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer bound UV stabilizers
Assignee: Arkema Inc
•
Filing: 1987-08-12
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Granted: 1989-09-19
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Expires: 2007-08-12
Abstract
Abstract Ultraviolet light stabilizers are chemically bound to anhydride containing polymers or copolymers. The polymeric stabilizers are prepared by the reaction of primary amino or hydrazido-substituted UV absorbers with some or all of the anhydride groups of the polymer or copolymer to form pendant stabilizer substituted imide or amic acid groups. The polymer bound stabilizers are not lost from the polymer system by volatilization, migration, or extraction, even at high temperature. The polymer of this invention may be used as they are or as concentrates to stabilize other polymer systems.
Inventors
- 👤 Ronald E. MacLeay
- 👤 Terry N. Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:41
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
90 words
A polymer with recurring units having a formula ##STR11## or both, in which the units occur either in the polymer backbone, on grafted side chains, as pendant units, or as combinations thereof, and wherein x is 0 or 1, R 1 and R 2 are independently hydrogen, alkyl of 1 to 6 carbons, cycloalkyl of 5 to 7 carbons, phenyl, chlorine or bromine, and each ##STR12## represents the residue of (a) hydrazido substituted 2-hydroxybenzophenones, (b) hydrazido substituted 2-(2-hydroxyphenyl)-2H-benzotriazoles, (c) hydrazido substituted salicylate esters, or (d) hydrazido substituted oxalic acid amides.
Claim 2
Dependent Claim
90 words
A polymer with recurring units having a formula ##STR11## or both, in which the units occur either in the polymer backbone, on grafted side chains, as pendant units, or as combinations thereof, and wherein x is 0 or 1, R 1 and R 2 are independently hydrogen, alkyl of 1 to 6 carbons, cycloalkyl of 5 to 7 carbons, phenyl, chlorine or bromine, and each ##STR12## represents the residue of (a) hydrazido substituted 2-hydroxybenzophenones, (b) hydrazido substituted 2-(2-hydroxyphenyl)-2H-benzotriazoles, (c) hydrazido substituted salicylate esters, or (d) hydrazido substituted oxalic acid amides.
Claim 3
Dependent Claim
77 words
The composition of claim 1 in which (a) is ##STR13## wherein R 3 and R 4 are independently hydrogen, hydroxyl, alkyl of 1-8 carbons, alkoxy of 1-4 carbons, or a connecting group X 1 with the proviso that only one of either R 3 or R 4 can be connecting group X 1 , X 1 is a divalent radical --NH--C(═O)--(CH 2 ) b --O--, --NH--C(═O)--, or --NH--S(═O) 2 --, and b is 0, 1, or 2.
Claim 4
Dependent Claim
33 words
The composition of claim 2 wherein R 3 is hydrogen or alkoxy of 1-4 carbons, R 4 is X 1 , X 1 is --NH--C(═O)--(CH 2 ) b --O--, and b is 1.
Claim 5
Dependent Claim
141 words
The composition of claim 2 in which (b) is ##STR14## wherein R 6 is hydrogen, alkyl of 1-4 carbons, alkoxy of 1-4 carbons, carboxyl, alkoxycarbonyl of 2-11 carbons, carboxylic acid amide, chlorine, bromine, sulfonic acid, alkylsulfonyl, or a connecting group X 2 , R 7 is hydrogen, alkyl of 1-8 carbons, aralkyl of 7-12 carbons, aryl of 6-14 carbons, or a connecting group X 3 , X 2 is --NH--C(═O)-- or --NH--S(═O) 2 --, X 3 is a divalent radical --NH--C(═O)--(CH z ) b --C(═O)--NH--(CH 2 ) y --, --NH--C(═O)--(CH 2 ) b --NH--(CH 2 ) y --, --NH--C(═O)--CH 2 ) 2 --, --NH--C(═O)--(CH 2 ) z --S--CH 2 --C(═O)--NH--(CH 2 ) y --, --NH--C(═O)--(CH 2 ) b O--, or --NH--C(═O)--, in which b is 0, 1 or 2, y is 1, 2 or 3, and z is 1 or 2.
Claim 6
Dependent Claim
51 words
The composition of claim 4 wherein R 6 is hydrogen or chlorine, R 7 is X 3 , X 3 is --NH--C(═O)--(CH 2 ) b --C(═O)--NH--(CH 2 ) y --, --NH--C(═O)--(CH 2 ) b --O--, or --NH--C(═O)--(CH 2 ) z --, y is 1, z is 2, and b is 1.
Claim 7
Dependent Claim
62 words
The composition of claim 4 in which (c) is ##STR15## wherein R 8 is substituted or unsubstituted aryl of 6-10 carbons, X 4 is a diradical --NH--C(═O)--(CH 2 ) z --Z--, --NH--C(═O)--(CH 2 ) b --C(═O)--NH--, or --NH--C(═O)--(CH 2 ) b --NH--, in which b is 0, 1 or 2, z is 1 or 2, and z is --NH--, --S--, or --O--.
Claim 8
Dependent Claim
23 words
The composition of claim 6 wherein R 8 is phenyl and X 4 is --NH--C(═O)--(CH 2 ) b --C(═O)--NH--, wherein b is 0.
Claim 9
Dependent Claim
88 words
The composition of claim 6 in which (d) is ##STR16## wherein R 9 is hydrogen, hydroxyl, alkoxy, or alkylthio of 1-12 carbons, acyloxy or acylthio of 2-12 carbons, alkyl of 1-8 carbons, aryl of 6-12 carbons, chlorine, or bromine, R 10 , R 11 , R 12 , and R 13 are independently hydrogen, alkyl of 1-8 carbons, aryl of 6-12 carbons, aralkyl of 7-13 carbons, alkoxy or alkylthio of 1-12 carbons, chlorine, bromine, or alkoxycarbonyl of 2 to 8 carbons, and X 5 is a direct bond.
Claim 10
Dependent Claim
24 words
The composition of claim 8 wherein R 9 is ethoxy, R 11 , R 12 , R 13 , and R 14 are hydrogen.
Claim 11
Dependent Claim
29 words
A polymer composition comprising a synthetic polymer which is subject to thermal, oxidative, or actinic light degradation and an effective amount for stabilization of the composition of claim 1.
Claim 12
Dependent Claim
22 words
The composition of claim 10 wherein the synthetic polymer or copolymer is selected from polystyrene, polyolefin, polyphenylene ether, polyamide or mixtures thereof.
References Cited (Backward Citations)
US2769804A
Cited
US2989517A
Cited
US2849373A
Cited
US2971939A
Cited
US3336267A
Cited
US3213058A
Cited
US3862087A
Cited
US3391110A
Cited
US3385910A
Cited
US3483276A
Cited
JPS4626860Y1
Cited
US3632561A
Cited
US3488311A
Cited
US3509110A
Cited
US3755354A
Cited
US3560455A
Cited
US3560456A
Cited
US3560457A
Cited
US3553177A
Cited
US3555001A
Cited
US3723375A
Cited
US3998907A
Cited
US3919354A
Cited
US3919354B1
Cited
US3884882A
Cited
US4042773A
Cited
FR2320310A1
Cited
US4108943A
Cited
US4097551A
Cited
US4341695A
Cited
US4481315A
Cited
US4354016A
Cited
US4381373A
Cited
CA1180497A
Cited
EP0076691A1
Cited
US4692486A
Cited
US4591619A
Cited
US4486570A
Cited
EP0084882A1
Cited
DD208471A3
Cited
DD208470A3
Cited
US4522983A
Cited
JPS59221314A
Cited
JPS59221315A
Cited
US4522992A
Cited
US4785063A
Cited
JPS6084378A
Cited
EP0242800A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |