Patent US1799162A successfully refreshed from Google Patents.
Patent US3909488A successfully refreshed from Google Patents.
US3909488A
Expired / Lapsed
US
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Vinyl plastisol compositions
Assignee: Tillotson Corp
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Filing: 1974-03-06
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Granted: 1975-09-30
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Expires: 1994-03-06
Abstract
Abstract Filled vinyl polymer plastisols are provided containing high concentrations of a filler, i.e. up to about 1500 weight percent based upon the weight of the vinyl polymer. The plastisols are prepared by first mixing a lubricant such as butyl stearate with a powdered unplasticized vinyl polymer and the filler and thereafter adding a plasticizer for the vinyl polymer.
Inventors
- 👤 Sebastian A Consoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K3/00; C08K3/01; C08K3/013; C08K5/101
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
129 words
A VINYL PLASTISOL COMPOSITION COMPRISING A VINYL POLYMER, A LOWER ALKYL ESTER OF A FATTY ACID IN AN AMOUNT SUFFICIENT TO COAT SAID POLYMER WHEN IN POWDER FORM, A PLASTICIZER FOR SAID POLYMER AND A PARTICULATE FILLER IN AN AMOUNT OF BETWEEN ABOUT 300 AND 2500 WEIGHT PERCENT BASED UPON THE WEIGHT OF SAID POLYMER, THE CONCENTRATION OF THE ESTER BEING BETWEEN ABOUT 5 TO 15 WEIGHT PERCENT, BASED UPON THE WEIGHT OF FILLER, SAID ESTER BEING ADDED TO A MIXTURE OF SAID POLYMER AND FILLER PRIOR TO ADDING SAID PLASTICIZER TO SAID POLYMER THEREBY TO GREATLY REDUCE THE RATE AT WHICH THE PLASTICIZER SUBSEQUENTLY ADDED TO SAID MIXTURE SOLVATES THE VINYL POLYMER AND THEREBY TO EFFECT HOMOGENEOUS DISPERSION AND RETENTION OF SAID FILLER IN THE VINYL PLASTISOL COMPOSITION.
Claim 2
Dependent Claim
129 words
A VINYL PLASTISOL COMPOSITION COMPRISING A VINYL POLYMER, A LOWER ALKYL ESTER OF A FATTY ACID IN AN AMOUNT SUFFICIENT TO COAT SAID POLYMER WHEN IN POWDER FORM, A PLASTICIZER FOR SAID POLYMER AND A PARTICULATE FILLER IN AN AMOUNT OF BETWEEN ABOUT 300 AND 2500 WEIGHT PERCENT BASED UPON THE WEIGHT OF SAID POLYMER, THE CONCENTRATION OF THE ESTER BEING BETWEEN ABOUT 5 TO 15 WEIGHT PERCENT, BASED UPON THE WEIGHT OF FILLER, SAID ESTER BEING ADDED TO A MIXTURE OF SAID POLYMER AND FILLER PRIOR TO ADDING SAID PLASTICIZER TO SAID POLYMER THEREBY TO GREATLY REDUCE THE RATE AT WHICH THE PLASTICIZER SUBSEQUENTLY ADDED TO SAID MIXTURE SOLVATES THE VINYL POLYMER AND THEREBY TO EFFECT HOMOGENEOUS DISPERSION AND RETENTION OF SAID FILLER IN THE VINYL PLASTISOL COMPOSITION.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said polymer is polyvinyl chloride.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein said ester is butyl stearate.
Claim 5
Dependent Claim
11 words
The composition of claim 2 wherein said ester is butyl stearate.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein said filler is a fire retardant.
Claim 7
Dependent Claim
12 words
The composition of claim 2 wherein said filler is a fire retardant.
Claim 8
Dependent Claim
12 words
The composition of claim 3 wherein said filler is a fire retardant.
Claim 9
Dependent Claim
12 words
The composition of claim 4 wherein said filler is a fire retardant.
Claim 10
Dependent Claim
84 words
The process of forming a vinyl plastisol composition containing between about 300 and 2500 weight percent filler based upon the weight of vinyl polymer in the plastisol which comprises mixing a powdered vinyl polymer and a particulate filler with a lower alkyl ester of a fatty acid in an amount sufficient to coat said vinyl powder, said ester comprising between about 5 and 15 weight percent based upon the weight of filler and thereafter admixing a plasticizer for said polymer with said polymer-ester-filler mixture.
Claim 11
Dependent Claim
84 words
The process of forming a vinyl plastisol composition containing between about 300 and 2500 weight percent filler based upon the weight of vinyl polymer in the plastisol which comprises mixing a powdered vinyl polymer and a particulate filler with a lower alkyl ester of a fatty acid in an amount sufficient to coat said vinyl powder, said ester comprising between about 5 and 15 weight percent based upon the weight of filler and thereafter admixing a plasticizer for said polymer with said polymer-ester-filler mixture.
Claim 12
Dependent Claim
11 words
The process of claim 9 wherein said polymer is polyvinyl chloride.
Claim 13
Dependent Claim
11 words
The process of claim 9 wherein said ester is butyl stearate.
Claim 14
Dependent Claim
11 words
The process of claim 10 wherein said ester is butyl stearate.
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |