Patent US3931076A successfully refreshed from Google Patents.
US3931076A
Expired / Lapsed
US
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Elimination of pinking in vinyl asbestos formulations
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1974-01-09
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Granted: 1976-01-06
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Expires: 1994-01-09
Abstract
Abstract Improved vinyl asbestos compositions comprising a vinyl chloride resin, plasticizer stabilizer, a hydrocarbon resin, asbestos, fillers, pigments and colorants and heat stabilizers wherein the improvement comprises the inclusion of a stabilizing amount of an anti-pinking additive selected from the group consisting of mono- and dicarboxylic acids having from 5 to 18 carbon atoms. In a preferred embodiment there is described an improved vinyl asbestos tile formula wherein the anti-pinking additive found most effective comprises neodecanoic acid and diethanolamine neodecanoate.
Inventors
- 👤 Gerald Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K3/00; C08K3/34; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
77 words
A vinyl asbestos composition comprising a vinyl resin, asbestos, fillers, a stabilizing amount of from 0.1% to 2.5% by weight based on the weight of said composition of melamine and an effective amount of from 0.01 to 10% by weight based on the weight of said composition of an anti-pinking additive selected from the group consisting of trialkyl acetic acids having the formula ##EQU2## wherein R, R' and R" are alkyl groups having from 1-18 carbon atoms.
Claim 2
Dependent Claim
77 words
A vinyl asbestos composition comprising a vinyl resin, asbestos, fillers, a stabilizing amount of from 0.1% to 2.5% by weight based on the weight of said composition of melamine and an effective amount of from 0.01 to 10% by weight based on the weight of said composition of an anti-pinking additive selected from the group consisting of trialkyl acetic acids having the formula ##EQU2## wherein R, R' and R" are alkyl groups having from 1-18 carbon atoms.
Claim 3
Dependent Claim
16 words
The composition according to claim 1 wherein said vinyl resin is a vinyl chloride/vinyl acetate copolymer.
Claim 4
Dependent Claim
30 words
The composition according to claim 1 wherein said anti-pinking additive is a trialkyl acetic acid where R, R' and R" are alkyl groups having from 1 to 6 carbon atoms.
Claim 5
Dependent Claim
13 words
The composition according to claim 1 wherein said anti-pinking additive is neodecanoic acid.
Claim 6
Dependent Claim
32 words
The composition of claim 4 wherein the amount of neodecanoic acid employed is in the range of from 3 to 5 weight per cent based on the total weight of the composition.
Claim 7
Dependent Claim
21 words
The composition of claim 2, wherein from about 3 to about 20% by weight of the vinyl resin is vinyl acetate.
Claim 8
Dependent Claim
13 words
The composition according to claim 1 wherein said vinyl resin is polyvinyl chloride.
Claim 9
Dependent Claim
43 words
The composition according to claim 1 wherein said vinyl asbestos composition additionally contains plasticizers selected from the group consisting of tricresyl phosphate, dihexyl phthalate, dibutyl phthalate, dioctyl phthalate, diisononyl phthalate, butylbenzyl phthalate, butyloctyl phthalate, dipropylene glycol dibenzoate, epoxidized soybean oil and mixtures thereof.
References Cited (Backward Citations)
US2837490A
Cited
US3180848A
Cited
US3287300A
Cited
US3288737A
Cited
US3314906A
Cited
US3730943A
Cited
US3541047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |