US4501843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of polymer of olefin with mixed mineral filler
Assignee: Phillips Petroleum Co
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Filing: 1984-03-23
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Granted: 1985-02-26
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Expires: 2004-03-23
Abstract
Abstract A method for improving the flexular modulus and/or impact strength of a polymer of olefin by admixing therewith a mica and at least one of talc or clay. A filled composition provided thereby.
Inventors
- 👤 Donald G. Needham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:58
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
78 words
A composition comprising polymer of olefin, mica, and talc having improved flexural modulus as compared to said polymer of olefin alone, said polymer of olefin present in an amount of about 60 to about 80 weight percent of the total composition, said mica present in an amount of about 10 to about 20 weight percent of the total composition and said talc present in an amount of about 10 to about 20 weight percent of the total composition.
Claim 2
Dependent Claim
78 words
A composition comprising polymer of olefin, mica, and talc having improved flexural modulus as compared to said polymer of olefin alone, said polymer of olefin present in an amount of about 60 to about 80 weight percent of the total composition, said mica present in an amount of about 10 to about 20 weight percent of the total composition and said talc present in an amount of about 10 to about 20 weight percent of the total composition.
Claim 3
Dependent Claim
47 words
A composition of claim 1 wherein said mica is present in an amount of about 12.5 weight percent to about 7.5 weight percent of the total composition and said talc is present in an amount of about 12.5 to about 17.5 weight percent of the total composition.
Claim 4
Dependent Claim
53 words
A composition of claim 2 wherein said polymer of olefin is present in an amount of about 70 weight percent, said mica is present in an amount of about 15 weight percent of the total composition and said talc is present in an amount of about 15 weight percent of the total composition.
Claim 5
Dependent Claim
12 words
A composition of claim 3 wherein the polymer of olefin is polypropylene.
Claim 6
Independent Claim
68 words
A method for improving the flexular modulus of polymer of olefin comprising admixing said polymer of olefin in an amount of about 60 to about 80 weight percent of the total composition with (1) mica in an amount of about 10 to about 20 weight percent of the total composition and (2) talc in an amount of about 10 to about 20 weight percent of the total composition.
Claim 7
Independent Claim
68 words
A method for improving the flexular modulus of polymer of olefin comprising admixing said polymer of olefin in an amount of about 60 to about 80 weight percent of the total composition with (1) mica in an amount of about 10 to about 20 weight percent of the total composition and (2) talc in an amount of about 10 to about 20 weight percent of the total composition.
Claim 8
Dependent Claim
45 words
A method of claim 5 wherein said mica is admixed in an amount of about 12.5 to about 17.5 weight percent of the total composition and said talc is admixed in an amount of about 12.5 to about 17.5 weight percent of the total composition.
Claim 9
Dependent Claim
57 words
A method of claim 2 wherein said polymer of olefin is admixed in an amount of about 70 weight percent of the total composition, said mica is admixed in an amount of about 15 weight percent of the total composition and said talc is admixed in an amount of about 15 weight percent of the total composition.
Claim 10
Dependent Claim
12 words
A method of claim 7 wherein said polymer of olefin is polypropylene.
Claim 11
Dependent Claim
79 words
A composition comprising polymer of olefin, mica, and clay having improved impact strength as compared to said said polymer of olefin alone said polymer of olefin present in an amount of about 60 to about 80 weight percent of the total composition, said mica present in an amount of about 10 to about 20 weight percent of the total composition and said clay present in an amount of about 10 to about 20 weight percent of the total composition.
Claim 12
Dependent Claim
79 words
A composition comprising polymer of olefin, mica, and clay having improved impact strength as compared to said said polymer of olefin alone said polymer of olefin present in an amount of about 60 to about 80 weight percent of the total composition, said mica present in an amount of about 10 to about 20 weight percent of the total composition and said clay present in an amount of about 10 to about 20 weight percent of the total composition.
Claim 13
Dependent Claim
45 words
A composition of claim 9 wherein said mica is present in an amount of about 12.5 to about 17.5 weight percent of the total composition and said clay is present in an amount of about 12.5 to about 17.5 weight percent of the total composition.
Claim 14
Dependent Claim
57 words
A composition of claim 10 wherein said polymer of olefin is present in an amount of about 70 weight percent of the total composition, said mica is present in an amount of about 15 weight percent of the total composition and said clay is present in an amount of about 15 weight percent of the total composition.
Claim 15
Dependent Claim
13 words
A composition of claim 11 in which said polymer of olefin is polypropylene.
Claim 16
Independent Claim
68 words
A method for improving the impact strength of polymer of olefin comprising admixing said polymer of olefin in an amount of about 60 to about 80 weight percent of the total composition with (1) mica in an amount of about 10 to about 20 weight percent of the total composition and (2) clay in an amount of about 10 to about 20 weight percent of the total composition.
Claim 17
Independent Claim
68 words
A method for improving the impact strength of polymer of olefin comprising admixing said polymer of olefin in an amount of about 60 to about 80 weight percent of the total composition with (1) mica in an amount of about 10 to about 20 weight percent of the total composition and (2) clay in an amount of about 10 to about 20 weight percent of the total composition.
Claim 18
Dependent Claim
45 words
A method of claim 13 wherein said mica is admixed in an amount of about 12.5 to about 17.5 weight percent of the total composition and said clay is admixed in an amount of about 12.5 to about 17.5 weight percent of the total composition.
Claim 19
Dependent Claim
57 words
A method of claim 14 wherein said polymer of olefin is admixed in an amount of about 70 weight percent of the total composition, said mica is admixed in an amount of about 15 weight percent of the total composition and said clay is admixed in an amount of about 15 weight percent of the total composition.
Claim 20
Dependent Claim
12 words
A method of claim 15 wherein said polymer of olefin is polypropylene.
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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) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |