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Patent US4361506A successfully refreshed from Google Patents.
US4361506A
Expired / Lapsed
US
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Compositions comprising a poly(methyl ethenyl benzene) resin and mineral oil
Assignee: Mobil Oil AS
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Filing: 1980-02-08
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Granted: 1982-11-30
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Expires: 2000-02-08
Abstract
Abstract Blends of a preformed poly(methyl ethenyl benzene) polymer or copolymer derived from an isomers of methyl ethenyl benzenes in which 1-methyl-4-ethenyl benzene is the predominant isomers, and up to about 10 weight percent of mineral oil are disclosed.
Inventors
- 👤 Robert V. Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:14
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
A polymeric composition comprising a compatible mixture of a preformed polymer or a copolymer containing, in polymerized form, at least 50 weight percent of a monomer mixture comprising 0 to 0.1 percent by weight 1-methyl-2-ethenyl benzene, 0 to 15 percent by weight 1-methyl-3-ethenyl benzene and at least 85 percent by weight 1-methyl-4-ethenyl benzene; and 50-0 percent of a different ethylenically unsaturated monomer; and 1 to 10 percent by weight of the composition of mineral oil.
Claim 2
Dependent Claim
75 words
A polymeric composition comprising a compatible mixture of a preformed polymer or a copolymer containing, in polymerized form, at least 50 weight percent of a monomer mixture comprising 0 to 0.1 percent by weight 1-methyl-2-ethenyl benzene, 0 to 15 percent by weight 1-methyl-3-ethenyl benzene and at least 85 percent by weight 1-methyl-4-ethenyl benzene; and 50-0 percent of a different ethylenically unsaturated monomer; and 1 to 10 percent by weight of the composition of mineral oil.
Claim 3
Dependent Claim
35 words
The composition of claim 1 wherein said monomer mixture comprises at least 90 percent by weight 1-methyl-4-ethenyl benzene, 1 to 10 percent by weight 1-methyl-3-ethenyl benzene and 0 to 0.1 percent by weight 1-methyl-2-ethenyl benzene.
Claim 4
Dependent Claim
35 words
The composition of claim 1 wherein said monomer mixture comprises at least 95 percent by weight 1-methyl-4-ethenyl benzene, 1 to 5 percent by weight 1-methyl-3-ethenyl benzene and 0 to 0.05 percent by weight 1-methyl-2-ethenyl benzene.
Claim 5
Dependent Claim
27 words
Th composition of claim 1 wherein said monomer mixture comprises at least 97 percent by weight 1-methyl-4-ethenyl benzene and 1 to 3 percent by weight 1-methyl-3-ethenyl benzene.
Claim 6
Dependent Claim
22 words
The composition of claim 1 wherein said mineral oil has a Saybolt Viscosity of about 50 to 500 SUS at 37.5° C.
Claim 7
Dependent Claim
22 words
The composition of claim 5 wherein said mineral oil has a Saybolt Viscosity of about 200 to 400 SUS at 37.5° C.
Claim 8
Dependent Claim
25 words
The polymeric composition of claim 1 in which said polymer or copolymer is a high impact copolymer produced by grafting to a rubbery backbone polymer.
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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) | 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 |