Patent US4814380A successfully refreshed from Google Patents.
US4814380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyetherimide ester elastomeric blends
Assignee: General Electric Co
•
Filing: 1987-12-29
•
Granted: 1989-03-21
•
Expires: 2007-12-29
Abstract
Abstract Novel thermoplastic elastomeric molding compositions having excellent physical properties, which comprise a polyetherimide ester elastomer modified with a combination of poly(butylene terephthalate), a monoalkenyl arene-conjugated diene copolymer and a polycarbonate.
Inventors
- 👤 Nan-I Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:52
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; C08L67/00; C08L67/02; C08L69/00; C08L69/005
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
159 words
A thermoplastic molding composition comprising: (A) at least one polyetherimide ester resin; (B) a modifier combination consisting essentially of: (i) one or more poly(butylene terephthalate) homopolyesters or copolyesters; (ii) a monoalkenyl arene-conjugated diene rubber copolymer selected from the group consisting of: (a) a block polymer comprising at least two monoalkenyl arene polymer end block A and at least one hydrogenated, partially hydrogenated or non-hydrogenated conjugated diene polymer mid block B, said block copolymer having an 8 to 55 percent by weight monoalkenyl arene polymer block content, each polymer block A having an average molecular weight of between 5,000 and 125,000, and each polymer block B having an average molecular weight of between about 10,000 and about 300,000; and (b) a core-shell graft copolymer comprising a predominately conjugated diene polymer core to which is grafted a shell polymerized from one or more monomers at least one of which is a monoalkenyl arene; and (iii) one or more aromatic polycarbonate resins.
Claim 2
Dependent Claim
159 words
A thermoplastic molding composition comprising: (A) at least one polyetherimide ester resin; (B) a modifier combination consisting essentially of: (i) one or more poly(butylene terephthalate) homopolyesters or copolyesters; (ii) a monoalkenyl arene-conjugated diene rubber copolymer selected from the group consisting of: (a) a block polymer comprising at least two monoalkenyl arene polymer end block A and at least one hydrogenated, partially hydrogenated or non-hydrogenated conjugated diene polymer mid block B, said block copolymer having an 8 to 55 percent by weight monoalkenyl arene polymer block content, each polymer block A having an average molecular weight of between 5,000 and 125,000, and each polymer block B having an average molecular weight of between about 10,000 and about 300,000; and (b) a core-shell graft copolymer comprising a predominately conjugated diene polymer core to which is grafted a shell polymerized from one or more monomers at least one of which is a monoalkenyl arene; and (iii) one or more aromatic polycarbonate resins.
Claim 3
Dependent Claim
62 words
The composition of claim 1 wherein the poly(butylene terephthalate) comprises from about 3 to about 60 percent by weight of the total composition, (b) the monoalkenyl arene-conjugated diene copolymer comprises from about 3 to about 30 percent by weight of the total composition, and (c) the polycarbonate contains from about 3 to about 60 percent by weight based on the total composition.
Claim 4
Dependent Claim
24 words
The composition of claim 1 wherein the modifying combination (B) comprises from about 10 to about 85 percent by weight of the total composition.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the poly(butylene terephthalate) is poly(1,4-butylene terephthalate) homopolyester.
Claim 6
Dependent Claim
15 words
The composition of claim 1 wherein the monoalkenyl arene-conjugated diene copolymer is a block copolymer.
Claim 7
Dependent Claim
13 words
The composition of claim 5 wherein the block copolymer is polystyrene-polybutadiene-polystyrene block copolymer.
Claim 8
Dependent Claim
15 words
The composition of claim 1 wherein the monoalkenyl arene-conjugated diene copolyner is a core-shell copolymer.
Claim 9
Dependent Claim
26 words
The composition of claim 7 wherein the core-shell copolymer is comprised of a polybutadiene core having polymerized thereon a shell derived from styrene and methylmethacrylate units.
Claim 10
Dependent Claim
26 words
The composition of claim 7 wherein the core-shell is copolymer is comprised of a poly(butadiene-styrene) core having polymerized thereon a shell derived from styrene and methylmethacrylate.
Claim 11
Dependent Claim
22 words
The composition of claim 1 wherein the monoalkenyl arene-conjugated diene copolymer is precompounded with at least a portion of the poly(butylene terephthalate).
Claim 12
Dependent Claim
15 words
The composition of claim 10 wherein the monoalkenyl arene-conjugated diene copolymer is a core-shell copolymer.
Claim 13
Dependent Claim
21 words
The composition of claim 1 wherein the aromatic polycarbonate resin is derived from a diphenol and phosgene or a phosgene precursor.
Claim 14
Dependent Claim
13 words
The composition of claim 12 wherein the aromatic polycarbonate resin is poly(biphenol A)carbonate.
Claim 15
Dependent Claim
74 words
The composition of claim 1 wherein said polyetherimide ester resin is comprised of the reaction products of: (a) at least one diol; at least one dicarboxylic acid or an ester forming reactive derivative thereof; and (c) a set of reactants selected from (1) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or (2) at least one high molecular weight polyoxyalkylene diimide diacid.
Claim 16
Dependent Claim
14 words
The composition of claim 14 wherein said diol is a low molecular weight diol.
Claim 17
Dependent Claim
17 words
The composition of claim 14 wherein said diol has a molecular weight of about 300 or less.
Claim 18
Dependent Claim
16 words
The composition of claim 14 wherein said diol contains from 2 to about 15 carbon atoms.
Claim 19
Dependent Claim
19 words
The composition of claim 17 wherein said diol is selected from butanediol, butenediol, hexanediol, cyclohexane dimethanol, or mixtures thereof.
Claim 20
Dependent Claim
10 words
The composition of claim 18 wherein said diol is butanediol.
Claim 21
Dependent Claim
20 words
The composition of claim 14 wherein said dicarboxylic acid or its derivative is an aromatic dicarboxylic acid or its derivative.
Claim 22
Dependent Claim
15 words
The composition of claim 20 wherein said aromatic dicarboxylic acid or its derivative is dimethylterephtalate.
Claim 23
Dependent Claim
9 words
The composition of claim 14 wherein (c) is (1).
Claim 24
Dependent Claim
39 words
The composition of claim 22 wherein said high molecular weight poly(oxy alkylene)diamine is represented by the formula H.sub.2 N--G--NH.sub.2 wherein G is the radical remaining after the removal of the amino groups of a long chain alkylene ether diamine.
Claim 25
Dependent Claim
21 words
The composition of claim 23 wherein said poly(oxy alkylene)diamine has an average molecular weight of from about 600 to about 12,000.
Claim 26
Dependent Claim
21 words
The composition of claim 24 wherein said poly(oxy alkylene)diamine has an average molecular weight of from about 900 to about 4,000.
Claim 27
Dependent Claim
25 words
The composition of claim 24 wherein said poly(oxy alkylene)diamine is selected from poly(ethylene ether)diamine, poly(propylene ether)diamine, poly (tetramethylene ether)diamine, copoly(propylene etherethylene ether)diamine, or mixtures thereof.
Claim 28
Dependent Claim
46 words
The composition of claim 22 wherein said tricarboxylic acid or its derivative is represented by the formula ##STR7## wherein R is a C 1 to C 20 trivalent aliphatic, cycloaliphatic or aromatic radical, and R" is hydrogen or a C 1 -C 6 aliphatic monovalent radical.
Claim 29
Dependent Claim
15 words
The composition of claim 27 wherein said tricarboxylic acid or its derivative is trimellitic anhydride.
Claim 30
Dependent Claim
9 words
The composition of claim 14 wherein (c) is (2).
Claim 31
Dependent Claim
82 words
The composition of claim 29 wherein said high molecular weight polyoxyalkylene diimide diacid is represented by the formula ##STR8## wherein: each R is independently selected from C 1 -C 20 aliphatic, cycloaliphatic or aromatic trivalent organic radicals; each R" is independently selected from hydrogen, C 1 -C 6 aliphatic or cycloaliphatic organic radicals, or C 6 -C 12 aromatic monovalent organic radicals; and G is the radical remaining after the removal of the amino groups of a long chain alkylene ether diamine.
Claim 32
Dependent Claim
24 words
The composition of claim 30 wherein said long chain alkylene ether diamine has an average molecular weight of from about 600 to about 12,000.
Claim 33
Dependent Claim
24 words
The composition of claim 31 wherein said long chain alkylene ether diamine has an average molecular weight of from about 900 to about 4,000.
Claim 34
Dependent Claim
21 words
The composition of claim 32 wherein each R is a C 6 trivalent aromatic hydrocarbon radical and each R" is hydrogen.
Claim 35
Dependent Claim
75 words
The composition of claim 1 wherein said polyetherimide ester resin is comprised of at least the following recurring structural units: ##STR9## wherein: R 1 is the residue of a diol absent the two hydroxyl groups; R 2 is the residue of a dicarboxylic acid absent the two carboxyl groups; R is a trivalent organic radical; and G is the radical remaining after the removal of the amino groups of a long chain poly(oxy alkylene) diamine.
Claim 36
Dependent Claim
21 words
The composition of claim 34 wherein said poly(oxy alkylene)diamine has an average molecular weight of from about 600 to about 12,000.
Claim 37
Dependent Claim
21 words
The composition of claim 35 wherein said poly(oxy alkylene)diamine has an average molecular weight of from about 900 to about 4,000.
Claim 38
Dependent Claim
16 words
The composition of claim 34 wherein R 2 is the residue of an aromatic dicarboxylic acid.
Claim 39
Dependent Claim
13 words
The composition of claim 37 wherein R 2 is the residue of dimethylterephthalate.
Claim 40
Dependent Claim
23 words
The composition of claim 37 wherein R 1 is the residue of a diol having a molecular weight of about 250 or less.
Claim 41
Dependent Claim
19 words
The composition of claim 39 wherein said diol is selected from butanediol, butenediol, hexanediol, cyclohexane dimethanol or mixtures thereof.
Claim 42
Dependent Claim
10 words
The composition of claim 40 wherein said diol is butanediol.
Claim 43
Dependent Claim
18 words
The composition of claim 1 which further contains an effective stabilizing amount of at least one thermal stabilizer.
Claim 44
Dependent Claim
10 words
The composition of claim 1 which further contains a filler.
References Cited (Backward Citations)
US4587299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |