US4444960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer blends with improved hydrolytic stability
Assignee: Celanese Corp
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Filing: 1980-11-03
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Granted: 1984-04-24
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Expires: 2000-11-03
Abstract
Abstract This invention relates to substantially transparent solid solution polymer blends having improved hydrolytic stability, and flexibility which comprise, in admixture, (1) a linear aromatic polyester of a dicarboxylic acid and a bisphenol, and (2) a linear aromatic polysulfonate of a bisphenol and a disulfonic acid. The polyblends are useful in preparation of films and molded articles.
Inventors
- 👤 Gideon Salee
- 👤 Jerold C. Rosenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:41
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08G; C08G75/00; C08G75/24; C08L81/00; C08L81/08
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
39 words
A thermoplastic polymeric composition comprising a solid solution polyblend of (a) a linear aromatic polyester of components comprising a bisphenol and a dicarboxylic acid and (b) a linear aromatic polysulfonate of components comprising a bisphenol and a disulfonic acid.
Claim 2
Dependent Claim
39 words
A thermoplastic polymeric composition comprising a solid solution polyblend of (a) a linear aromatic polyester of components comprising a bisphenol and a dicarboxylic acid and (b) a linear aromatic polysulfonate of components comprising a bisphenol and a disulfonic acid.
Claim 3
Dependent Claim
60 words
The composition of claim 1 wherein said dicarboxylic acid has the formula: ##STR4## wherein Z is alkylene, --Ar-- or --Ar--Y--Ar-- where Ar is aromatic, Y is alkylene, haloalkylene, --O--, --S--, --SO 2 --, --SO 3 --, --CO--, ##STR5## or GN<, wherein G is alkyl, haloalkyl, aryl, haloaryl, alkylaryl, haloalkylaryl, arylalkyl, haloarylalkyl, cycloalkyl or cyclohaloalkyl; and n is 0 or 1.
Claim 4
Dependent Claim
14 words
The composition of claim 2 wherein said dicarboxylic acid is an aromatic dicarboxylic acid.
Claim 5
Dependent Claim
24 words
The composition of claim 3 wherein said aromatic dicarboxylic acid is selected from the group consisting of isophthalic acid, terephthalic acid, and mixtures thereof.
Claim 6
Dependent Claim
103 words
The composition of claim 1 wherein said bisphenol has the formula: ##STR6## wherein Ar is aromatic, G is alkyl, haloalkyl, aryl, haloaryl, alkylaryl, haloalkylaryl, arylalkyl, haloarylalkyl, cycloalkyl, or cyclohaloalkyl; E is divalent alkylene, haloalkylene, cycloalkylene, halocycloalkylene, arylene, or haloarylene, --O--, --S--, --SO--, --SO 2 --, --SO 3 --, --CO--, ##STR7## or GN<; T and T' are independently selected from the group consisting of halogen, G and OG; m is an integer from 0 to the number of replaceable hydrogen atoms on E; b is an integer from 0 to the number of replaceable hydrogen atoms on Ar, and x is 0 or 1.
Claim 7
Dependent Claim
10 words
The composition of claim 5 wherein the bisphenol is bisphenol-A.
Claim 8
Dependent Claim
67 words
The composition of claim 1 wherein said linear aromatic polyester includes an aliphatic modifier having the formula: H.sub.n D--A--D'H.sub.n wherein D and D' are independently selected from the group consisting of O, S, and N; A is a bivalent or disubstituted aliphatic radical, free of tertiary carbon atoms, and n is an integer from 1 to 2 with n being 2 when D and/or D' are N.
Claim 9
Dependent Claim
18 words
The composition of claim 7 wherein said aliphatic modifier is a glycol of 2 to 100 carbon atoms.
Claim 10
Dependent Claim
24 words
The composition of claim 8 wherein said glycol is selected from the group consisting of neopentyl glycol, diethylene glycol, ethylene glycol, and mixtures thereof.
Claim 11
Dependent Claim
60 words
The composition of claim 1 wherein said disulfonic acid has the formula: HO--O.sub.2 S--Z'--SO.sub.2 --OH wherein Z' is alkylene or cycloalkylene of 2 to 6 carbon atoms, --Ar-- or --Ar--Y'--Ar-- where Ar is aromatic, Y' is alkylene, haloalkylene, --O--, --S--, --SO 2 --, --CO-- and GN<; wherein G is alkyl, haloalkyl aryl, haloaryl, alkylaryl, haloalkylaryl, arylalkyl, haloarylalkyl, cycloalkyl or cyclohaloalkyl.
Claim 12
Dependent Claim
14 words
The composition of claim 10 wherein the disulfonic acid is an aromatic disulfonic acid.
Claim 13
Dependent Claim
58 words
The composition of claim 11 wherein the aromatic disulfonic acid is selected from the group consisting of 1,4-, 1,3- and 1,2-benzene disulfonic acids, 2,4-toluene disulfonic acid, 2,7-naphthalene disulfonic acid, 4,4'-diphenyl disulfonic acid, 4,4'-diphenylether disulfonic acid, 4,4'-diphenyl methane disulfonic acid, 3,3'- and 4,4'-diphenyl sulfone disulfonic acids, 2,2'-bis-(4-hydroxysulfonyl phenyl)-propane, 4,5- and 4,6-dichloro-1,3-benzene disulfonic acids and 4,5,6-trichloro 1,3 benzene disulfonic acid.
Claim 14
Dependent Claim
19 words
The composition of claim 12 wherein the aromatic disulfonic acid is 4,4'-diphenyl disulfonic acid and the bisphenol is bisphenol-A.
Claim 15
Dependent Claim
21 words
The composition of claim 1 wherein the weight ratio of aromatic polyester to aromatic polysulfonate is about 5:95 to about 95:5.
Claim 16
Dependent Claim
22 words
The composition of claim 14 wherein the weight ratio of the aromatic polyester to aromatic polysulfonate is about 30:70 to about 70:30.
Claim 17
Dependent Claim
14 words
The composition of claim 1 wherein the aromatic polyester is prepared by melt polymerization.
Claim 18
Dependent Claim
11 words
The composition of claim 1 which also includes a filler material.
Claim 19
Dependent Claim
12 words
The composition of claim 17 wherein the filler material is glass fiber.
Claim 20
Dependent Claim
47 words
A thermoplastic polymeric composition comprising a solid solution polyblend of (a) a polyester selected from the group consisting of poly-(bisphenol A-isophthalate), poly-(bisphenol A-terephthalate) and bisphenol-A isophthalate-terephthalate polyester and (b) bisphenol-A-4,4' diphenyl disulfonate polysulfonate, the proportion of said polyester to said polysulfonate being about 30:70 to about 70:30.
Claim 21
Dependent Claim
47 words
A thermoplastic polymeric composition comprising a solid solution polyblend of (a) a polyester selected from the group consisting of poly-(bisphenol A-isophthalate), poly-(bisphenol A-terephthalate) and bisphenol-A isophthalate-terephthalate polyester and (b) bisphenol-A-4,4' diphenyl disulfonate polysulfonate, the proportion of said polyester to said polysulfonate being about 30:70 to about 70:30.
Claim 22
Dependent Claim
10 words
A molded article formed from the composition of claim 1.
Claim 23
Dependent Claim
9 words
A film prepared from the composition of claim 1.
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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |