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Patent US4361688A successfully refreshed from Google Patents.
US4361688A
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Di(2-methyl-2-phenyl propyl) peroxy dicarbonate and other novel (2-alkyl-2-phenyl) substituted peroxy dicarbonates
Assignee: Argus Chemical Corp
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Filing: 1981-04-20
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Granted: 1982-11-30
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Expires: 2001-04-20
Abstract
Abstract Novel peroxydicarbonates are provided in which the alkyl carbonate moiety is 2-alkyl-2-phenyl substituted. The compounds are useful as polymerization initiators of ethylenically unsaturated monomers, such as vinyl chloride, and as catalysts of unsaturated polyester resins. The subject peroxydicarbonates are characterized in that they are solid at room temperature, have ambient temperature stability in spite of a low 10 hour half-life temperature, and can normally be transported and stored without refrigeration.
Inventors
- 👤 Reidar Halle
- 👤 David Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:49
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/045; C08F10/00; C08F10/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
101 words
In the polymerization of a monomer mass containing a monomer selected from ethylene, styrene, methylmethacrylate and vinyl chloride by subjecting said mass to polymerization conditions in the presence of an initiating amount of an organic peoxide, the improvement in which said organic peroxide includes a peroxydicarbonate of the formula: ##STR4## wherein: each of R and R 1 is lower alkyl of from 1 to 4 carbon atoms; n is 0 to 3; and X is selected from the group consisting of lower alkyl of from 1 to 4 carbon atoms, halogen, and lower alkoxy of from 1 to 4 carbon atoms.
Claim 2
Dependent Claim
101 words
In the polymerization of a monomer mass containing a monomer selected from ethylene, styrene, methylmethacrylate and vinyl chloride by subjecting said mass to polymerization conditions in the presence of an initiating amount of an organic peoxide, the improvement in which said organic peroxide includes a peroxydicarbonate of the formula: ##STR4## wherein: each of R and R 1 is lower alkyl of from 1 to 4 carbon atoms; n is 0 to 3; and X is selected from the group consisting of lower alkyl of from 1 to 4 carbon atoms, halogen, and lower alkoxy of from 1 to 4 carbon atoms.
Claim 3
Dependent Claim
14 words
The improved method in accordance with claim 1 wherein vinyl chloride monomer is polymerized.
Claim 4
Dependent Claim
20 words
The improved method in accordance with claim 1 wherein the polymerization conditions include a temperature of from about 50°-60° C.
Claim 5
Dependent Claim
111 words
In a process for curing a mixture of an unsaturated polyester resin of a polybasic or polyhydric compound or its anhydride and a peroxide cross-linkable monomeric compound by heating said mixture at a curing temperature in the presence of an effective amount of a curing catalyst, the improvement in which the curing catalyst is a peroxydicarbonate of the formula: ##STR5## Wherein: Each of R and R 1 is lower alkyl of from 1 to 4 carbon atoms; N is O to 3; and X is selected from the group consisting of lower alkyl of from 1 to 4 carbon atoms, halogen, and lower alkoxy of from 1 to 4 carbon atoms.
Claim 6
Dependent Claim
111 words
In a process for curing a mixture of an unsaturated polyester resin of a polybasic or polyhydric compound or its anhydride and a peroxide cross-linkable monomeric compound by heating said mixture at a curing temperature in the presence of an effective amount of a curing catalyst, the improvement in which the curing catalyst is a peroxydicarbonate of the formula: ##STR5## Wherein: Each of R and R 1 is lower alkyl of from 1 to 4 carbon atoms; N is O to 3; and X is selected from the group consisting of lower alkyl of from 1 to 4 carbon atoms, halogen, and lower alkoxy of from 1 to 4 carbon atoms.
Claim 7
Dependent Claim
38 words
The improved method in accordance with claim 1 wherein R and R 1 are each methyl or ethyl; n is 0 or 1 and X is selected from the group consisting of methyl, ethyl, halogen, methoxy and ethoxy.
Claim 8
Dependent Claim
16 words
The improved method in accordance with claim 5 wherein X is methyl and n is 1.
Claim 9
Dependent Claim
12 words
The improved method in accordance with claim 1 wherein n is 0.
Claim 10
Dependent Claim
12 words
The improved method in accordance with claim 1 wherein R is methyl.
Claim 11
Dependent Claim
13 words
The improved method in accordance with claim 8 wherein R 1 is methyl.
Claim 12
Dependent Claim
13 words
The improved method in accordance with claim 8 wherein R 1 is ethyl.
Claim 13
Dependent Claim
15 words
The improved method in accordance with claim 1 wherein the peroxydicarbonate is di(2-methyl-2-phenyl propyl) peroxydicarbonate.
Claim 14
Dependent Claim
15 words
The improved method in accordance with claim 1 wherein the peroxydicarbonate is di(2-methyl-2-phenyl butyl) peroxydicarbonate.
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) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |