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US5331048A
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US
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Blends of vinylaromatic-conjugated diene block copolymers and polybutenes
Assignee: Phillips Petroleum Co
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Filing: 1992-08-03
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Granted: 1994-07-19
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Expires: 2012-08-03
Abstract
Abstract Blends of monovinyl aromatic-conjugated diene block copolymers with polybutene are provided. Methods of making these resins and articles made therefrom are provided.
Inventors
- 👤 Lori C. Hasselbring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:26
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C08L23/00; C08L23/02; C08L23/18; C08L23/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
A composition comprising: (a) a resinous polymodal monovinyl aromatic-conjugated diene block copolymer; and (b) at least one liquid polybutene; wherein said polymodal monovinyl aromatic-conjugated diene block copolymer is present in an amount in the range of about 85 to about 97 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene; and wherein said at least one polybutene is present in an amount in the range of about 3 to about 20 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene.
Claim 2
Dependent Claim
100 words
A composition comprising: (a) a resinous polymodal monovinyl aromatic-conjugated diene block copolymer; and (b) at least one liquid polybutene; wherein said polymodal monovinyl aromatic-conjugated diene block copolymer is present in an amount in the range of about 85 to about 97 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene; and wherein said at least one polybutene is present in an amount in the range of about 3 to about 20 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene.
Claim 3
Dependent Claim
21 words
A composition as recited in claim 1 wherein said resinous polymodal monovinyl aromatic-conjugated diene block copolymer is a styrene-butadiene block copolymer.
Claim 4
Dependent Claim
88 words
A composition as recited in claim 1 wherein said polymodal monovinyl aromatic-conjugated diene block copolymer is present in an amount in the range of about 85 to about 97 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene; and wherein said at least one polybutene is present in an amount in the range of about 3 to about 15 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene.
Claim 5
Dependent Claim
88 words
A composition as recited in claim 1 wherein said polymodal monovinyl aromatic-conjugated diene block copolymer is present in an amount in the range of about 90 to about 95 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene; and wherein said at least one polybutene is present in an amount in the range of about 5 to about 10 weight percent, based on total weight of said monovinyl aromatic-conjugated diene block copolymer and said at least one polybutene.
Claim 6
Dependent Claim
17 words
A composition as recited in claim 1 wherein said at least one polybutene is an hydrogenated polybutene.
Claim 7
Dependent Claim
17 words
A composition as recited in claim 1 wherein said at least one polybutene is an epoxy-terminated polybutene.
Claim 8
Independent Claim
50 words
A method for improving the impact strength of monovinyl aromatic-conjugated diene block copolymers, said method comprising admixing with a polymodal monovinyl aromatic-conjugated diene block copolymer an amount of low molecular weight polybutene in the range of about 3 to about 20 weight percent based on total weight of the composition.
Claim 9
Independent Claim
50 words
A method for improving the impact strength of monovinyl aromatic-conjugated diene block copolymers, said method comprising admixing with a polymodal monovinyl aromatic-conjugated diene block copolymer an amount of low molecular weight polybutene in the range of about 3 to about 20 weight percent based on total weight of the composition.
Claim 10
Dependent Claim
35 words
A method as recited in claim 7 wherein said amount of said low molecular weight polybutene is in the range of about 3 to about 15 weight percent based on total weight of the composition.
Claim 11
Dependent Claim
35 words
A method as recited in claim 7 wherein said amount of said low molecular weight polybutene is in the range of about 5 to about 10 weight percent based on total weight of the composition.
Claim 12
Dependent Claim
20 words
A method as recited in claim 7 wherein said monovinyl aromatic-conjugated diene block copolymer is a resinous styrene-butadiene block copolymer.
Claim 13
Dependent Claim
17 words
A method as recited in claim 7 wherein said low molecular weight polybutene is an hydrogenated polybutene.
Claim 14
Dependent Claim
17 words
A method as recited in claim 7 wherein said low molecular weight polybutene is an epoxy-terminated polybutene.
Claim 15
Dependent Claim
8 words
Articles made from the composition of claim 1.
Claim 16
Dependent Claim
8 words
Articles made from the composition of claim 5.
Claim 17
Dependent Claim
8 words
Articles made from the composition of claim 6.
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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) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |