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Patent US3714053A successfully refreshed from Google Patents.
US3714053A
Expired / Lapsed
US
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Plasticizers for vinyl polymers and processes for their production
Assignee: Orkem SA
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Filing: 1970-11-09
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Granted: 1973-01-30
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Expires: 1990-11-09
Abstract
Abstract A plasticizer for a vinyl polymer consisting of a mixture of phthalate of (trimethyl pentane diol-1,3 monoisobutyrate) and of benzyl, and of phthalate of butyl or isobutyl and of benzyl and a process for the production thereof by reacting preferably 0.5 g. mole of trimethyl-2,2,4 pentane diol-1,3, monoisobutyrate with lg. mole of phthalic anhydride, reacting the product with a butyl alcohol, neutralizing the obtained phthalates and reacting the salts with benzyl chloride to esterify the remaining unesterified functions of the phthalic anhydride to form the plasticizer.
Inventors
- 👤 P Mottez
- 👤 R Lejeune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A process for the production of a plasticizer, comprising the steps of (i) reacting in relative proportions, at most 1g. mole of trimethyl-2,2,4 pentane-diol-1,3 mono-isobutyrate with 1g. mole of phthalic anhydride, (ii) reacting the obtained product with a butyl alcohol so as to form a monobutyl phthalaTe, the operating conditions being chosen so that after this reaction there exists no more phthalic anhydride which has not reacted, (iii) neutralizing the phthalates thus obtained by means of an alkaline base, (iv) reacting the salts thus prepared with a benzyl halide in a sufficient quantity to esterify the whole of the functions, not yet esterified, of the phthalic anhydride used.
Claim 2
Dependent Claim
108 words
A process for the production of a plasticizer, comprising the steps of (i) reacting in relative proportions, at most 1g. mole of trimethyl-2,2,4 pentane-diol-1,3 mono-isobutyrate with 1g. mole of phthalic anhydride, (ii) reacting the obtained product with a butyl alcohol so as to form a monobutyl phthalaTe, the operating conditions being chosen so that after this reaction there exists no more phthalic anhydride which has not reacted, (iii) neutralizing the phthalates thus obtained by means of an alkaline base, (iv) reacting the salts thus prepared with a benzyl halide in a sufficient quantity to esterify the whole of the functions, not yet esterified, of the phthalic anhydride used.
Claim 3
Dependent Claim
19 words
A process as claimed in claim 1, wherein the butyl alcohol is selected from n-butyl alcohol and isobutyl alcohol.
Claim 4
Dependent Claim
30 words
A process as claimed in claim 1, wherein the first esterification step is effected at a temperature of between 130* and 150* C and in the absence of a catalyst.
Claim 5
Dependent Claim
23 words
A process as claimed in claim 1, wherein the second esterification is effected at a temperature of between 100* C and 115* C.
Claim 6
Dependent Claim
22 words
A process as claimed in claim 1, wherein the neutralization is effected at a temperature between about 80* C and 90* C.
Claim 7
Dependent Claim
47 words
A process as claimed in claim 1, wherein the reaction of the salts of the phthalates with the benzyl halide is effected utilizing benzyl chloride, operated at a temperature of between 110* C and 130* C and in the presence, as a catalyst, of a tertiary amine.
Claim 8
Dependent Claim
23 words
A process as claimed in claim 1 wherein the quantity of trimethyl-2,2,4 pentane diol-1,3 mono-isobutyrate is 0.5 molecule per molecule of phthalic anhydride.
Claim 9
Dependent Claim
9 words
The product prepared by the process of claim 1.
Claim 10
Dependent Claim
9 words
The product prepared by the process of claim 2.
References Cited (Backward Citations)
US2862959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |