Patent US4248594A successfully refreshed from Google Patents.
US4248594A
Expired / Lapsed
US
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Nickel salt-ester stabilizing compositions
Assignee: Wyeth Holdings LLC
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Filing: 1980-02-04
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Granted: 1981-02-03
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Expires: 2000-02-04
Abstract
Abstract Compositions of nickel salts of 4-hydroxybenzoic acids and esters of aliphatic or aromatic carboxylic acids, which esters have boiling points of at least about 250° C. are useful for stabilizing polyolefins against degradation by heat and ultraviolet radiation and for rendering polyolefins dyeable.
Inventors
- 👤 Robert J. Tucker
- 👤 Joseph A. Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:33
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C07; C07C; C07C65/00; C07C65/01; C07C65/03; C08K5/0091; C08K5/10; C08K5/12; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
111 words
A nickel stabilizer composition for rendering polyolefins dyeable and resistant to degradation by heat and ultraviolet radiation comprising a mixture of about 70 to 90 parts by weight of a compound of formula (I) ##STR14## wherein R 1 and R 2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R 3 and R 4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 30 to 10 parts by weight of an ester of an aliphatic or aromatic carboxylic acid, which ester has a boiling point of at least about 250° C.
Claim 2
Dependent Claim
111 words
A nickel stabilizer composition for rendering polyolefins dyeable and resistant to degradation by heat and ultraviolet radiation comprising a mixture of about 70 to 90 parts by weight of a compound of formula (I) ##STR14## wherein R 1 and R 2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R 3 and R 4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 30 to 10 parts by weight of an ester of an aliphatic or aromatic carboxylic acid, which ester has a boiling point of at least about 250° C.
Claim 3
Dependent Claim
14 words
A composition of claim 1 wherein the compound of formula I is nickel 3,5-di-t-butyl-4-hydroxybenzoate.
Claim 4
Dependent Claim
13 words
A composition of claim 1 or 2 wherein the ester is di-butyl phthalate.
Claim 5
Dependent Claim
13 words
A composition of claim 1 or 2 wherein the ester is n-hexadecyl 3,5-di-t-butyl-4-hydroxybenzoate.
Claim 6
Dependent Claim
33 words
A dyeable and heat and ultraviolet radiation resistant composition comprising a polyolefin and from about 0.05 to 10% by weight of the composition of claim 1, based on the weight of the polyolefin.
Claim 7
Dependent Claim
25 words
A composition of claim 5 containing about 0.25 to 2% by weight of the composition of claim 1, based on the weight of the polyolefin.
Claim 8
Dependent Claim
10 words
A composition of claim 6 wherein the polyolefin is polypropylene.
Claim 9
Dependent Claim
14 words
A composition of claim 7 wherein the ester is di-butyl phthalate or n-hexadecyl 3,5-di-t-butyl-4-hydroxybenzoate.
Claim 10
Independent Claim
149 words
A method for dyeing, or printing, a polyolefin fiber, film, or fabric comprising the steps of: (a) incorporating into said polyolefin from about 0.05% to about 10% by weight of a mixture of about 70 to 90 parts by weight of a compound of formula (I) ##STR15## wherein R 1 and R 2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R 3 and R 4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 30 to 10 parts by weight of an ester of an aliphatic or aromatic carboxylic acid, which ester has a boiling point of at least about 250° C., based on the weight of the polyolefin; (b) forming fibers, films, or fabrics therefrom; and (c) contacting said fibers, films, or fabrics with a chelatable dye.
Claim 11
Independent Claim
149 words
A method for dyeing, or printing, a polyolefin fiber, film, or fabric comprising the steps of: (a) incorporating into said polyolefin from about 0.05% to about 10% by weight of a mixture of about 70 to 90 parts by weight of a compound of formula (I) ##STR15## wherein R 1 and R 2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R 3 and R 4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 30 to 10 parts by weight of an ester of an aliphatic or aromatic carboxylic acid, which ester has a boiling point of at least about 250° C., based on the weight of the polyolefin; (b) forming fibers, films, or fabrics therefrom; and (c) contacting said fibers, films, or fabrics with a chelatable dye.
Claim 12
Dependent Claim
31 words
The method of claim 9 wherein the effective amount of said mixture of formula (I) and ester is from about 0.25% to about 2%, based on the weight of said polyolefin.
Claim 13
Dependent Claim
10 words
The method of claim 9 wherein the polyolefin is polypropylene.
Claim 14
Dependent Claim
14 words
The method of claim 9 wherein the compound of formula (I) is nickel 3,5-di-tert.-butyl-4-hydroxybenzoate.
Claim 15
Dependent Claim
11 words
The method of claim 12 wherein the ester is dibutyl phthalate.
Claim 16
Dependent Claim
11 words
The method of claim 12 wherein the ester is n-hexadecyl 3,5-di-tert.-butyl-4-hydroxy-benzoate.
Claim 17
Dependent Claim
14 words
The method of claim 9 wherein the dye is an aromatic hydroxy azo dye.
Claim 18
Dependent Claim
6 words
The dyed composition of claim 15.
Claim 19
Dependent Claim
93 words
A mixture of about 70 to 90 parts by weight of a compound of formula (I) ##STR16## wherein R 1 and R 2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R 3 and R 4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 30 to 10 parts by weight of an ester of an aliphatic or aromatic carboxylic acid, which ester has a boiling point of at least about 250° C.
Claim 20
Dependent Claim
93 words
A mixture of about 70 to 90 parts by weight of a compound of formula (I) ##STR16## wherein R 1 and R 2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R 3 and R 4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 30 to 10 parts by weight of an ester of an aliphatic or aromatic carboxylic acid, which ester has a boiling point of at least about 250° C.
Claim 21
Dependent Claim
14 words
A mixture of claim 17 wherein the compound of formula I is nickel 3,5-di-t-butyl-4-hydroxybenzoate.
Claim 22
Dependent Claim
13 words
A mixture of claim 17 or 18 wherein the ester is di-butyl phthalate.
Claim 23
Dependent Claim
13 words
A mixture of claim 17 or 18 wherein the ester is n-hexadecyl 3,5-di-t-butyl-4-hydroxybenzoate.
References Cited (Backward Citations)
US3189630A
Cited
US4144029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |