US4555541A
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Benzoate-stabilized rigid polyvinyl chloride compositions
Assignee: BASF Corp
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Filing: 1984-02-13
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Granted: 1985-11-26
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Expires: 2004-02-13
Abstract
Abstract Rigid polyvinyl chloride containing reduced amounts of titanium dioxide and a tin mercaptide thermal stabilizer, said polyvinyl chloride being stabilized against the adverse effects of ultraviolet radiation by the addition thereto of effective amounts of mono- and dibenzoate compounds.
Inventors
- 👤 William J. Reid
- 👤 Jean M. Zappia
- 👤 Gerald A. Capocci
- 👤 John d. Spivack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
188 words
A rigid polyvinyl chloride composition comprising in addition to said polyvinyl chloride, 2 to 8% titanium dioxide, by weight of the polyvinyl chloride, an effective thermal stabilizing amount of a tin mercaptide and an effective stabilizing amount of a benzoate compound of the formulae ##STR10## wherein R is alkyl and R 1 is alkyl, haloalkyl, phenyl, alkyl-substituted phenyl, alkyl-substituted benzoyloxy; ##STR11## wherein R is as defined hereinabove, R 2 is alkylene, haloalkylene or ##STR12## and R 3 is alkylene or haloalkylene; ##STR13## wherein R 4 is ##STR14## a is an integer from 2 to 6, b is an integer from 3 to 40, x is an integer from 0 to 6, d is 0 or 1, R is as defined hereinabove, and R 5 is ##STR15## wherein R is as previously defined, R 6 is --COOR 7 , and R 7 is alkyl, phenyl or alkyl-substituted phenyl; ##STR16## wherein R and R 2 are as previously defined, and n is 1-15; ##STR17## wherein R and R 3 are as previously defined; and ##STR18## wherein R is as previously defined, and R 8 is alkyl, phenyl or alkyl-substituted phenyl.
Claim 2
Dependent Claim
188 words
A rigid polyvinyl chloride composition comprising in addition to said polyvinyl chloride, 2 to 8% titanium dioxide, by weight of the polyvinyl chloride, an effective thermal stabilizing amount of a tin mercaptide and an effective stabilizing amount of a benzoate compound of the formulae ##STR10## wherein R is alkyl and R 1 is alkyl, haloalkyl, phenyl, alkyl-substituted phenyl, alkyl-substituted benzoyloxy; ##STR11## wherein R is as defined hereinabove, R 2 is alkylene, haloalkylene or ##STR12## and R 3 is alkylene or haloalkylene; ##STR13## wherein R 4 is ##STR14## a is an integer from 2 to 6, b is an integer from 3 to 40, x is an integer from 0 to 6, d is 0 or 1, R is as defined hereinabove, and R 5 is ##STR15## wherein R is as previously defined, R 6 is --COOR 7 , and R 7 is alkyl, phenyl or alkyl-substituted phenyl; ##STR16## wherein R and R 2 are as previously defined, and n is 1-15; ##STR17## wherein R and R 3 are as previously defined; and ##STR18## wherein R is as previously defined, and R 8 is alkyl, phenyl or alkyl-substituted phenyl.
Claim 3
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula I.
Claim 4
Dependent Claim
22 words
The composition of claim 2, wherein both R groups are tertiary butyl and are in the ortho position to the hydroxyl group.
Claim 5
Dependent Claim
16 words
The composition of claim 2, wherein R 1 is alkyl of 1 to 24 carbon atoms.
Claim 6
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula II.
Claim 7
Dependent Claim
27 words
The composition of claim 5, wherein all the R groups are tertiary butyl and are positioned ortho to the hydroxyl group or meta to the carbonyl group.
Claim 8
Dependent Claim
17 words
The composition of claim 5, wherein R 2 and R 3 are C 2 -C 8 alkylene.
Claim 9
Dependent Claim
10 words
The composition of claim 7, wherein said benzoate is 1,6-hexanediol-bis(3,5-di-t-butyl-4-hydroxybenzoate).
Claim 10
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula III.
Claim 11
Dependent Claim
27 words
The composition of claim 9, wherein all the R groups are tertiary butyl and are positioned ortho to the hydroxyl group or meta to the carbonyl group.
Claim 12
Dependent Claim
13 words
The composition of claim 9, wherein a is 2 and b is 3.
Claim 13
Dependent Claim
13 words
The composition of claim 11, wherein said benzoate is triethyleneglycol-bis(3,5-di-t-butyl-4-hydroxybenzoate) or triethyleneglycol-bis[4-(3,5-di-t-butyl-4-hydroxybenzoyloxy)-3,5-di-t-butyl benzoate].
Claim 14
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula IV.
Claim 15
Dependent Claim
20 words
The composition of claim 13, wherein the R groups are tertiary butyl and are positioned ortho to the oxygen atom.
Claim 16
Dependent Claim
16 words
The composition of claim 13, wherein R 7 is alkyl of 1 to 24 carbon atoms.
Claim 17
Dependent Claim
18 words
The composition of claim 15, wherein said benzoate is phosphonic acid, n-dodecyl-3,5-di-tert-butyl-4-hydroxybenzoate diester or phosphonic acid, n-hexyl-3,5-di-tert-butyl-4-hydroxybenzoate diester.
Claim 18
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula V.
Claim 19
Dependent Claim
28 words
The composition of claim 17, wherein all R groups are tertiary butyl and are positioned meta to the carbonyl and R 2 is C 2 -C 8 alkylene.
Claim 20
Dependent Claim
10 words
The composition of claim 18, wherein said benzoate is poly[1,6-hexanediol-bis-(3,5-di-t-butyl-4-hydroxybenzoate)]phosphonate.
Claim 21
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula VI.
Claim 22
Dependent Claim
28 words
The composition of claim 20, wherein all R groups are tertiary butyl and are positioned meta to the carbonyl and R 3 is C 2 -C 8 alkylene.
Claim 23
Dependent Claim
10 words
The composition of claim 21, wherein said benzoate is N-3,5-di-t-butyl-4-(3",5"-di-t-butyl-4"-hydroxybenzoyloxy)benzoyl-N'-(3',5'-di-t-butyl-4'-hydroxybenzoyl)hexanediamine.
Claim 24
Dependent Claim
12 words
The composition of claim 1, wherein said benzoate corresponds to formula VII.
Claim 25
Dependent Claim
26 words
The composition of claim 23, wherein all R groups are meta to the carbonyl group and R 8 is alkyl of 1 to 24 carbon atoms.
Claim 26
Dependent Claim
11 words
The composition of claim 24, wherein said benzoate is bis(2,6-di-t-butyl-4-octadecyloxycarbonylphenyl)pentaerythritol diphosphite.
Claim 27
Dependent Claim
17 words
The composition of claim 1 which contains 0.2 to 4.0% of benzoate, by weight of polyvinyl chloride.
Claim 28
Dependent Claim
50 words
The composition of claim 1 which additionally contains a benzotriaziole, a hindered phenol or mixtures thereof; said benzotriazole replacing a maximum of 50% of said benzoate and said phenol replacing a maximum of 25% of said phenol with the total replacement by both additives not exceeding 50% of said benzoate.
Claim 29
Dependent Claim
12 words
The composition of claim 27, wherein said benzoate corresponds to formula II.
Claim 30
Dependent Claim
12 words
The composition of claim 27, wherein said benzoate corresponds to formula IV.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |