US4158021A
Expired / Lapsed
US
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Process for the preparation of a copolymerizable composition
Assignee: Akzona Inc
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Filing: 1977-11-25
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Granted: 1979-06-12
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Expires: 1997-11-25
Abstract
Abstract A copolymerizable composition containing an unsaturated polyester resin and a metal accelerator, suitable for copolymerization with an ethylenically unsaturated monomer, has incorporated therein as a peroxide initiator composition an alkylaldehyde peroxide which may be unsubstituted, or alkyl- or aryl-substituted, the alkylaldehyde peroxide containing not more than 20 carbon atoms and at least 1.5 active oxygen atoms per carbonyl group of said alkylaldehyde.
Inventors
- 👤 Lodewijk Roskott
- 👤 Arnold Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:06
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/20; C07C407/00; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
132 words
A process for preparing an alkylaldehyde peroxide containing not more than 20 carbon atoms and at least 1.5 active oxygen atoms per carbonyl group of alkylaldehyde, said alkylaldehyde peroxide being selected from the group consisting of unsubstituted alkylaldehyde peroxide, alkyl-substituted alkylaldehyde peroxide, and aryl-substituted alkylaldehyde peroxide, comprising reacting an alkylaldehyde with not more than 20 carbon atoms with hydrogen peroxide in the form of an aqueous solution having an H 2 O 2 content between about 30 and about 85% by weight, in a solvent in which both the alkylaldehyde and the formed peroxide composition are soluble, the molar ratio of carbonyl groups to H 2 O 2 is the reaction mixture being between 1:1.5 and 1:4.0, in the presence of an acid catalyst with the simultaneous removal of water by distillation.
Claim 2
Dependent Claim
132 words
A process for preparing an alkylaldehyde peroxide containing not more than 20 carbon atoms and at least 1.5 active oxygen atoms per carbonyl group of alkylaldehyde, said alkylaldehyde peroxide being selected from the group consisting of unsubstituted alkylaldehyde peroxide, alkyl-substituted alkylaldehyde peroxide, and aryl-substituted alkylaldehyde peroxide, comprising reacting an alkylaldehyde with not more than 20 carbon atoms with hydrogen peroxide in the form of an aqueous solution having an H 2 O 2 content between about 30 and about 85% by weight, in a solvent in which both the alkylaldehyde and the formed peroxide composition are soluble, the molar ratio of carbonyl groups to H 2 O 2 is the reaction mixture being between 1:1.5 and 1:4.0, in the presence of an acid catalyst with the simultaneous removal of water by distillation.
Claim 3
Dependent Claim
30 words
The process of claim 1 in which said acid catalyst is selected from the group consisting of a mineral acid, a strongly acid ion exchanger, and a strong organic acid.
Claim 4
Dependent Claim
25 words
The process of claim 2 in which said acid catalyst is employed in an amount of 0.2 to 200 mg equivalent per mole of aldehyde.
Claim 5
Dependent Claim
17 words
The process of claim 1 in which the reaction water is removed by distillation under reduced pressure.
Claim 6
Dependent Claim
26 words
The process of claim 1 in which the reaction water is distilled off in the presence of an organic solvent which forms an azeotrope with water.
Claim 7
Dependent Claim
23 words
The process of claim 5 in which said organic solvent is a member of the group consisting of benzene, toluene, and butyl acetate.
Claim 8
Dependent Claim
22 words
The process of claim 1 in which said reaction is carried out at a temperature between about 10° and about 50° C.
Claim 9
Dependent Claim
129 words
An alkylaldehyde peroxide containing not more than 20 carbon atoms and at least 1.5 active oxygen atoms per carbonyl group of alkylaldehyde, said alkylaldehyde peroxide being selected from the group consisting of unsubstituted alkylaldehyde peroxide, alkyl-substituted alkylaldehyde peroxide, and aryl-substituted alkylaldehyde peroxide, prepared by reacting an alkylaldehyde with not more than 20 carbon atoms with hydrogen peroxide in the form of an aqueous solution having an H 2 O 2 content between about 30 and about 85% by weight, in a solvent in which both the alkylaldehyde and the formed peroxide composition are soluble, the molar ratio of carbonyl groups to H 2 O 2 in the reaction mixture being between 1:1.5 and 1:4.0, in the presence of an acid catalyst with the simultaneous removal of water by distillation.
Claim 10
Dependent Claim
129 words
An alkylaldehyde peroxide containing not more than 20 carbon atoms and at least 1.5 active oxygen atoms per carbonyl group of alkylaldehyde, said alkylaldehyde peroxide being selected from the group consisting of unsubstituted alkylaldehyde peroxide, alkyl-substituted alkylaldehyde peroxide, and aryl-substituted alkylaldehyde peroxide, prepared by reacting an alkylaldehyde with not more than 20 carbon atoms with hydrogen peroxide in the form of an aqueous solution having an H 2 O 2 content between about 30 and about 85% by weight, in a solvent in which both the alkylaldehyde and the formed peroxide composition are soluble, the molar ratio of carbonyl groups to H 2 O 2 in the reaction mixture being between 1:1.5 and 1:4.0, in the presence of an acid catalyst with the simultaneous removal of water by distillation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |