Patent US4609714A successfully refreshed from Google Patents.
US4609714A
Expired / Lapsed
US
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Blends of poly(aryl ketones)
Assignee: Syensqo Specialty Polymers USA LLC
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Filing: 1984-09-14
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Granted: 1986-09-02
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Expires: 2004-09-14
Abstract
Abstract Described herein are blends of at least two separately made crystalline polyarylether resins formed into an intimate moldable mixture, each resin having, prior to being formed into said mixture (i) a different crystalline melting temperature and a different glass transition temperature, of (ii) a different molecular arrangement of unit components each resin comprising 1,4 phenylene units separated by ether oxygen and at least one of said resins containing 1,4-phenylene unit separated by a divalent carbonyl radical.
Inventors
- 👤 James E. Harris
- 👤 Lloyd M. Robeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:51
CPC Classifications
C; C08; C08L; C08L65/00; C08L71/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
122 words
A poly(aryl ether) resin blend comprising from about 5 to about 95 weight percent of at least two separately made crystalline poly(aryl ether) resins formed into an intimate moldable mixture, each resin having, prior to being formed into said mixture (i) a different crystalline melting temperature and a different glass transition temperature, or (ii) a different molecular arrangement of unit components each resin comprising 1,4-phenylene units separated by either oxygen and at least one of said resins containing 1,4-phenylene units separated by a divalent carbonyl radical; and poly(aryl ether) resins each having a reduced viscosity of at least about 0.4 to about 5.0 dl/g as determined in concentrated sulfuric acid at 25° C. using a concentration of 1.0 weight percent polymer solution.
Claim 2
Dependent Claim
122 words
A poly(aryl ether) resin blend comprising from about 5 to about 95 weight percent of at least two separately made crystalline poly(aryl ether) resins formed into an intimate moldable mixture, each resin having, prior to being formed into said mixture (i) a different crystalline melting temperature and a different glass transition temperature, or (ii) a different molecular arrangement of unit components each resin comprising 1,4-phenylene units separated by either oxygen and at least one of said resins containing 1,4-phenylene units separated by a divalent carbonyl radical; and poly(aryl ether) resins each having a reduced viscosity of at least about 0.4 to about 5.0 dl/g as determined in concentrated sulfuric acid at 25° C. using a concentration of 1.0 weight percent polymer solution.
Claim 3
Dependent Claim
14 words
A blend as defined in claim 1 wherein the poly(aryl ethers) are poly(arylether ketones).
Claim 4
Dependent Claim
56 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) has a repeating unit of the following formula: ##STR18## wherein Ar is independently a divalent aromatic radical selected from phenylene, biphenylene or naphthylene, X is independently O, ##STR19## or a direct bond and n is an integer of from 0 to 3.
Claim 5
Dependent Claim
41 words
A blend as defined in claim 3 wherein at least one poly(aryl ether ketone) has a repeating unit of the following formula: ##STR20## wherein a is an integer of 1 to 4 and b, c, and d are 0 to 1.
Claim 6
Dependent Claim
32 words
A blend defined in claim 2 wherein at least one poly(aryl ether ketone) has a repeating unit of the following formula: ##STR21## wherein x is independently O, ##STR22## or a direct bond.
Claim 7
Dependent Claim
50 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) has a repeating unit of the following: ##STR23## wherein Ar is a divalent aromatic radical selected from phenylene, biphenylene or naphthylene, X is independently O, ##STR24## or a direct bond and e is 0 or 1.
Claim 8
Dependent Claim
51 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) has a repeating unit of the following formula: ##STR25## wherein Ar is a divalent aromatic radical selected from phenylene, biphenylene or naphthylene, X is independently O, ##STR26## or a direct bond and e is 0 or 1.
Claim 9
Dependent Claim
20 words
A blend defined in claim 2 wherein at least one poly(aryl ether ketone) has repeating units of the formula: ##STR27##
Claim 10
Dependent Claim
21 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) has repeating units of the formula: ##STR28##
Claim 11
Dependent Claim
35 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) has repeating units of the formula: ##STR29## where the ratio of para to meta linkages may vary from 100:0 to 50:50.
Claim 12
Dependent Claim
21 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) has repeating units of the formula: ##STR30##
Claim 13
Dependent Claim
12 words
A blend of the poly(aryl ether ketones) of claims 8 and 9.
Claim 14
Dependent Claim
12 words
A blend of the poly(aryl ether ketones) of claims 8 and 10.
Claim 15
Dependent Claim
12 words
A blend of the poly(aryl ether ketones) of claims 8 and 11.
Claim 16
Dependent Claim
12 words
A blend of the poly(aryl ether ketones) of claims 9 and 10.
Claim 17
Dependent Claim
12 words
A blend of the poly(aryl ether ketones) of claims 9 and 11.
Claim 18
Dependent Claim
12 words
A blend of the poly(aryl ether ketones) of claims 10 and 11.
Claim 19
Dependent Claim
21 words
A blend as defined in claim 2 wherein at least one poly(aryl ether ketone) is a constituent of a block copolymer.
Claim 20
Dependent Claim
44 words
A blend as defined in claim 1 wherein one poly(aryl ether ketone) has a reduced viscosity of from 0.4 to 1.0 and the second polyarylether has a reduced viscosity of from 1.2 to 5.0 dl/g as measured in concentrated sulfuric acid at 25° C.
Claim 21
Dependent Claim
21 words
A blend as defined in claim 1 wherein the poly(aryl ether ketone) has repeating units of at least one formula: ##STR31##
Claim 22
Dependent Claim
11 words
An article molded from the blends of claims 1 to 20.
Claim 23
Dependent Claim
10 words
A blend as defined in claim 1 which is isomorphic.
Claim 24
Dependent Claim
13 words
A blend as defined in claim 1 which is compatible but not miscible.
References Cited (Backward Citations)
EP0008895A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |