Patent US3876727A successfully refreshed from Google Patents.
US3876727A
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US
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Plastic composition and method of preparing same
Assignee: Individual
•
Filing: 1972-06-16
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Granted: 1975-04-08
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Expires: 1992-06-16
Abstract
Abstract An improved plastic composition formed by the reaction of an alkenyl aromatic monomer, an acrylic monomer and an interpolymer of ethylene, at least one other straight chain alpha-monoolefin and a compound selected from the group consisting of aliphatic and cycloaliphatic polyene compounds in the presence of a free radical catalyst in an organic solvent, and in the presence of a seed mixture comprising a mixture of said monomers and said interpolymer which has been reacted to at least 5% conversion based on said monomers.
Inventors
- 👤 Curtis L Meredith
- 👤 Bodungen George A Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
C; C08; C08F; C08F255/00; Y; Y10; Y10S; Y10S525/00; Y10S525/904
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
28 words
IN A CONTINUOUS PROCESS FOR PREPARING IMPROVED PLASTIC COMPOSITIONS WHEREIN 99 TO 50 PARTS BY WEIGHT OF AN ALKENYL AROMATIC MONOMER AND AN ACRYLIC MONOMER HAVING THE FORMULA
Claim 2
Dependent Claim
28 words
IN A CONTINUOUS PROCESS FOR PREPARING IMPROVED PLASTIC COMPOSITIONS WHEREIN 99 TO 50 PARTS BY WEIGHT OF AN ALKENYL AROMATIC MONOMER AND AN ACRYLIC MONOMER HAVING THE FORMULA
Claim 3
Dependent Claim
27 words
A process as defined in claim 1 wherein said seed mixture has been reacted to a conversion within the range of 5 to 14% based upon said
Claim 4
Dependent Claim
12 words
A process as defined in claim 1 wherein said seed mixture constitutes
Claim 5
Dependent Claim
11 words
A process as defined in claim 1 wherein said alpha-monoolefin is
Claim 6
Dependent Claim
21 words
A process as defined in claim 1 wherein said polyene compound is a polyunsaturated bridged-ring compound having at least one carbon-to-carbon
Claim 7
Dependent Claim
30 words
A process as defined in claim 1 wherein said polyene compound is a polyunsaturated derivative of a compound selected from the group consisting of bicyclo-(2,2,1)-heptane, bicyclo-(2,2,2)-octane, bicyclo-(3,2,1)-octane, bicyclo-(3,3,1)-nonane and bicyclo(3,2,2)-nonane.
Claim 8
Dependent Claim
12 words
A process as defined in claim 1 wherein said polyene compound is
Claim 9
Dependent Claim
13 words
A process as defined in claim 1 wherein said terpolymer is a terpolymer
Claim 10
Dependent Claim
13 words
A process as defined in claim 1 wherein said alkenyl aromatic monomer is
Claim 11
Dependent Claim
13 words
A process as defined in claim 1 wherein the weight ratio between the
Claim 12
Dependent Claim
25 words
A process as defined in claim 1 wherein the reaction mixture contains 4-25 parts by weight of said terpolymer for each 96-75 parts by weight
Claim 13
Dependent Claim
30 words
A process as defined in claim 1 wherein said organic solvent is selected from a group consisting of aromatic hydrocarbon and the alkyl- and halogen-substituted derivatives, aliphatic hydrocarbons and their
Claim 14
Dependent Claim
14 words
A process as defined in claim 1 wherein said solvent is a mixture of
Claim 15
Dependent Claim
14 words
A process as defined in claim 1 wherein the reaction is carried out at
Claim 16
Dependent Claim
25 words
A process as defined in claim 1 wherein an aliphatic solvent is added to the reaction mixture in at least one increment during the reaction.
Claim 17
Dependent Claim
27 words
A process as defiined in claim 15 wherein said increment is added at a time falling within 1/7 and 6/7 of the total reaction time required to
Claim 18
Dependent Claim
14 words
A process as defined in claim 1 wherein the reaction is carried out at
Claim 19
Dependent Claim
50 words
A process as defined in claim 1 wherein the reaction mixture is continuously supplied to at least three reaction zones in series whereby the reaction mixture in the first reaction zone is converted to a conversion within the range of 5 to 30% and serves as the feed for the
Claim 20
Dependent Claim
112 words
A process as defined in claim 1 wherein the reaction is carried out in a tubular reaction zone heated along its wall containing baffles downstream from the inlet of the tubular zone, and the reaction mixture is advanced through the tubular zone in substantially non-turbulent flow whereby the reaction mixture near the wall of the tubular zone is reacted to a conversion within the range of 5 to 30% based on the monomers and the reaction mixture near the center of the tubular zone remains substantially unreacted, and the reaction mixture near the wall of the tubular zone is blended with the reaction mixture near the center of the tubular zone as
Claim 21
Dependent Claim
31 words
A process as defined in claim 19 wherein the reaction mixture near the wall of the tubular zone is reacted to a conversion of 5 to 14% based on the monomers.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |