US4764556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding materials of polyester and polycarbonate
Assignee: BASF SE
•
Filing: 1987-05-08
•
Granted: 1988-08-16
•
Expires: 2007-05-08
Abstract
Abstract Thermoplastic molding materials contain, as essential components, (A) from 10 to 89% by weight of a blend of (A 1 ) from 20 to 98% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aliphatic dihydroxy compound and (A 2 ) from 2 to 80% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aromatic dihydroxy compound of the formula I ##STR1## or its C 1 -C 6 -alkyl or halogen derivative substituted in the nucleus, where Z is an alkylene or cycloalkylene group of not more than 8 carbon atoms, an arylene group of not more than 12 carbon atoms, --O--, --S--, ##STR2## or a chemical bond and m is 0 or 1, (B) from 10 to 89% by weight of a polycarbonate and (C) from 1 to 30% by weight of a rubber toughener having a glass transition temperature of less than -30° C.
Inventors
- 👤 Dietrich Lausberg
- 👤 Christof Taubitz
- 👤 Manfred Knoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L67/03; C08L69/00
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
163 words
A thermoplastic molding material, comprising: (A) from 10 to 89% by weight of a blend of (A 1 ) from 20 to 98% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aliphatic dihydroxy compound and (A 2 ) from 2 to 80% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aromatic dihydroxy compound of the formula I ##STR8## or its C 1 -C 6 -alkyl or halogen derivative substituted in the nucleus, where Z is an alkylene or cycloalkylene group of not more than 8 carbon atoms, an arylene group of not more than 12 carbon atoms, --O--, --S--, ##STR9## or a chemical bond and m is 0 or 1, (B) from 10 to 89% by weight of polycarbonate and (C) from 1 to 30% by weight of a rubber toughener having a glass transition temperature of less than -30° C.
Claim 2
Dependent Claim
163 words
A thermoplastic molding material, comprising: (A) from 10 to 89% by weight of a blend of (A 1 ) from 20 to 98% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aliphatic dihydroxy compound and (A 2 ) from 2 to 80% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aromatic dihydroxy compound of the formula I ##STR8## or its C 1 -C 6 -alkyl or halogen derivative substituted in the nucleus, where Z is an alkylene or cycloalkylene group of not more than 8 carbon atoms, an arylene group of not more than 12 carbon atoms, --O--, --S--, ##STR9## or a chemical bond and m is 0 or 1, (B) from 10 to 89% by weight of polycarbonate and (C) from 1 to 30% by weight of a rubber toughener having a glass transition temperature of less than -30° C.
Claim 3
Dependent Claim
50 words
The thermoplastic molding material of claim 1, wherein said polyester A 1 comprises an aromatic dicarboxylic acid moeity comprising an aromatic ring which is unsubstituted or an aromatic ring which is substituted by at least one member selected from the group consisting of halogen atoms and C 1-4 -alkyl groups.
Claim 4
Dependent Claim
19 words
The thermoplastic molding material of claim 2, wherein said halogen atom is a chlorine atom or a bromine atom.
Claim 5
Dependent Claim
21 words
The thermoplastic molding material of claim 2, wherein said C 1-4 -alkyl is methyl, ethyl, isopropyl, n-propyl, n-butyl, iso-butyl or tetra-butyl.
Claim 6
Dependent Claim
36 words
The thermoplastic molding material of claim 1, wherein said polyester A 1 comprises a dicarboxylic acid moiety which is at least one member selected from the group consisting of naphthalenedicarboxylic acid, terephthalic acid, and isophthalic acid.
Claim 7
Dependent Claim
31 words
The thermoplastic molding material of claim 1, wherein up to 10 mol% of said aromatic dicarboxylic acid of said polyester A 1 is replaced by an aliphatic or cycloaliphatic dicarboxylic acid.
Claim 8
Dependent Claim
34 words
The thermoplastic molding material of claim 6, wherein up to 10 mol% of said aromatic dicarboxylic acid moiety is replaced by adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, or a cyclohexane dicarboxylic acid.
Claim 9
Dependent Claim
19 words
The thermoplastic molding material of claim 1, wherein said polyester A 1 comprises a C 2-6 aliphatic dihydroxy compound.
Claim 10
Dependent Claim
23 words
The thermoplastic molding material of claim 8, wherein said aliphatic dihydroxy compound comprises ethane-1,2-diol, butane-1,4-diol, hexane-1,6-diol, hexane-1,4-diol, cyclohexane-1,4-diol, neopentylglycol or a mixture thereof.
Claim 11
Dependent Claim
23 words
The thermoplastic molding material of claim 1, wherein said polyester A 1 is a polyalkylene terephthalate derived from a C 2-6 alkane diol.
Claim 12
Dependent Claim
18 words
The thermoplastic molding material of claim 1, wherein said polyester A 1 is polyethylene terephthalate or polybutylene terephthalate.
Claim 13
Dependent Claim
28 words
The thermoplastic molding material of claim 1, wherein said polyester A 2 comprises aromatic dicarboxylic acid moieties comprising naphthalenedicarboxylic acid, terephthalic acid, isophthalic acid, or a mixture thereof.
Claim 14
Dependent Claim
30 words
The thermoplastic molding material of claim 1, wherein said polyester A 2 comprises from 5 to 100 mol% of isophthalic acid and from 0 to 95 mol% of terephthalic acid.
Claim 15
Dependent Claim
54 words
The thermoplastic molding material of claim 1, wherein group Z of said compound of formula I is at least one member selected from the group consisting of dihydroxy diphenyls, di-(hydroxyphenyl)-alkanes, di-(hydroxyphenyl)-cycloalkanes, di-(hydroxyphenyl) sulfides, di-(hydroxyphenyl) ethers, di-(hydroxyphenyl) ketones, di-(hydroxyphenyl) sulfoxides, α,α'-di(hydroxyphenyl)-dialkylbenzenes, resorcinol, hydroquinone, and their derivatives possessing alkylated nuclei and their derivatives possessing halogenated nuclei.
Claim 16
Dependent Claim
28 words
The thermoplastic molding material of claim 1, wherein group Z of said compound of formula I comprises 4,4'-dihydroxydiphenyl; 2,4-di(4'-hydroxyphenyl)-2-methylbutane; α,α'-di-(4-hydroxphenyl)-p-diisopropylbenzene; 2,2-di-(3'-methyl-4'-hydroxyphenyl)-propane; 2,2-di-(3'-chloro-4'-hydroxyphenyl)-propane, 2,2-di-(4'-hydroxyphenyl)-propane; 2,2-di-(3',5'-dimethyl-4'-hydroxyphenyl)-propane; or a mixture thereof.
Claim 17
Dependent Claim
25 words
The thermoplastic molding material of claim 15, wherein group Z of said compound of formula I is 2,2-di-(4'-hydroxyphenyl-propane); 2,2-di-(3',5'-dichlorodihydroxyphenyl)-propane; 1,1-di-(4'-hydroxyphenyl)-cyclohexane; 2,2-di-(3',5'-dimethyl-4'-hydroxyphenyl)-propane; or a mixture thereof.
Claim 18
Dependent Claim
29 words
The thermoplastic molding material of claim 1, wherein said component (A) comprises from 2 to 60% by weight of (A 2 ) based on (A 1 )+(A 2 ).
Claim 19
Dependent Claim
31 words
The thermoplastic molding material of claim 1, wherein said component (A) comprises from 3 to 50% by weight of said polyester (A 2 ) based on (A 1 )+(A 2 ).
Claim 20
Dependent Claim
35 words
The thermoplastic molding material of claim 1, wherein said polycarbonate possesses a relative viscosity of from 1.2 to 1.5 dl g -1 as measured in 0.5% strength by weight solution in dichloromethane at 25° C.
Claim 21
Dependent Claim
20 words
The thermoplastic molding material of claim 19, wherein said relative viscosity is from 1.28 to 1.40 dl g -1 .
Claim 22
Dependent Claim
18 words
The thermoplastic molding material of claim 1, comprising from 20 to 78% by weight of said component (B).
Claim 23
Dependent Claim
18 words
The thermoplastic molding material of claim 1, comprising from 40 to 65% by weight of said component (B).
Claim 24
Dependent Claim
18 words
The thermoplastic molding material of claim 1, comprising from 2 to 25% by weight of said component (C).
Claim 25
Dependent Claim
18 words
The thermoplastic molding material of claim 1, comprising from 5 to 15% by weight of said component (C).
Claim 26
Dependent Claim
21 words
The thermoplastic molding material of claim 1, wherein said component (C) possesses a glass transition temperature of less than -40° C.
Claim 27
Dependent Claim
45 words
The thermoplastic molding material of claim 1, wherein said rubber is a copolymer composed of at least two members selected from the group consisting of ethylene, propylene, butadiene, isobutene, isoprene, chloroprene, vinyl acetate, styrene, acrylonitrile, and acrylates and methacrylates having a C 1-18 alcohol component.
Claim 28
Dependent Claim
32 words
The thermoplastic molding material of claim 1, wherein said component (C) comprises an ethylene/propylene or an ethylene/propylene/diene rubber having a ratio of ethylene radicals to propylene radicals of from 40:60 to 65:35.
Claim 29
Dependent Claim
41 words
The thermoplastic molding material of claim 27, wherein said ethylene/propylene/diene rubber comprises as said diene at least one member selected from the group consisting of isoprene, butadiene, nonconjugated dienes of 5 to 25 carbon atoms, cyclic dienes, and mixtures of these.
Claim 30
Dependent Claim
36 words
The thermoplastic molding material of claim 28, wherein said non-conjugated dienes of 5 to 25 carbons comprises 1,4-butadiene, 1,4-hexadiene, 1-5 hexadiene, 2,5-dimethyl-1,5-hexadiene or 1,4-octadiene, wherein said cyclic diene comprises cyclopentadiene, cyclohexadiene, cyclooctodiene, dicylcopentadiene, or an alkenylnorbornene.
Claim 31
Dependent Claim
104 words
The thermoplastic molding material of claim 1, wherein said component (C) comprises a copolymer of ethylene with an acrylate or a copolymer of ethylene with a methacrylate, or said component (C) comprises a graft copolymer with butadiene, butadiene/styrene, butadiene/acrylonitrile and an acrylate as the grafting base, or wherein said component (C) comprises a graft polymer of 25-98% by weight of an acrylate rubber having a glass transition temperature of less than -20° C., as the grafting base, and from 2-75% by weight of a copolymerizable ethylenically unsaturated monomer whose homopolymers and copolymers have a glass transition temperature higher than 25° C., as the graft.
Claim 32
Dependent Claim
168 words
A molding obtained by molding a thermoplastic molding material comprising: (A) from 10 to 89% by weight of a blend of (A 1 from 20 to 98% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aliphatic dihydroxy compound and (A 2 ) from 2 to 80% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid of an aromatic dihydroxy compound of the formula I ##STR10## or its C 1 -C 6 -alkyl or halogen derivative substituted in the nucleus, where Z is an alkylene or cycloalkylene group of not more than 8 carbon atoms, an arylene group of not more than 12 carbon atoms, --O--, --S--, --CO-- or a chemical bond and m is 0 or 1; (B) from 10 to 89% by weight of a polycarbonate and (C) from 1 to 30% by weight of a rubber toughener having a glass transition temperature of less than -30° C.
Claim 33
Dependent Claim
168 words
A molding obtained by molding a thermoplastic molding material comprising: (A) from 10 to 89% by weight of a blend of (A 1 from 20 to 98% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid and an aliphatic dihydroxy compound and (A 2 ) from 2 to 80% by weight, based on (A 1 )+(A 2 ), of a polyester of an aromatic dicarboxylic acid of an aromatic dihydroxy compound of the formula I ##STR10## or its C 1 -C 6 -alkyl or halogen derivative substituted in the nucleus, where Z is an alkylene or cycloalkylene group of not more than 8 carbon atoms, an arylene group of not more than 12 carbon atoms, --O--, --S--, --CO-- or a chemical bond and m is 0 or 1; (B) from 10 to 89% by weight of a polycarbonate and (C) from 1 to 30% by weight of a rubber toughener having a glass transition temperature of less than -30° C.
Claim 34
Dependent Claim
49 words
The molding of claim 31, wherein said polyester (A 1 ) comprises an aromatic dicarboxylic acid moeity comprising an aromatic ring which is unsubstituted or an aromatic ring which is substituted by at least one member selected from the group consisting of halogen atoms and C 1-4 -alkyl groups.
Claim 35
Dependent Claim
17 words
The molding of claim 32, wherein said halogen atom is a chlorine atom or a bromine atom.
Claim 36
Dependent Claim
19 words
The molding of claim 32, wherein said C 1-4 -alkyl is methyl, ethyl, isopropyl, n-propyl, n-butyl, iso-butyl or tetra-butyl.
Claim 37
Dependent Claim
35 words
The molding of claim 31, wherein said polyester (A 1 ) comprises a dicarboxylic acid moiety which is at least one member selected from the group consisting of naphthalenedicarboxylic acid, terephthalic acid, and isophthalic acid.
Claim 38
Dependent Claim
30 words
The molding of claim 31, wherein up to 10 mol% of said aromatic dicarboxylic acid of said polyester (A 1 ) is replaced by an aliphatic or cycloaliphatic dicarboxylic acid.
Claim 39
Dependent Claim
32 words
The molding of claim 36, wherein up to 10 mol% of said aromatic dicarboxylic acid moiety is replaced by adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, or a cyclohexane dicarboxylic acid.
Claim 40
Dependent Claim
48 words
The molding of claim 31, wherein group Z of said compound of formula I is at least one member selected from the group consisting of dihydroxy diphenyls, di-(hydroxyphenyl)-alkanes, di-(hydroxyphenyl)-cycloalkanes, di(hydroxyphenyl) ketones, di(hydroxyphenyl) sulfoxides, α,α'-di(hydroxyphenyl)-dialkylbenzenes, resorcinol, hydroquinone, and their derivatives possessing alkylated nuclei and their derivatives possessing halogenated nuclei.
Claim 41
Dependent Claim
24 words
The molding of claim 31, wherein group Z of said compound of formula I comprises 4,4'-dihyroxydiphenyl; 2,4-di(4'-hydroxyphenyl)-2-methylbutane; α,α'-di-(4-hydroxyphenyl)-p-diisopropylbenzene; 2,2-di-(3'-chloro-4'-hydroxyphenyl)-propane, 2,2-di-(4'-hydroxyphenyl)-propane; or a mixture thereof.
References Cited (Backward Citations)
DE2343609A1
Cited
US3864428A
Cited
US4172859A
Cited
US4304709A
Cited
GB2118193A
Cited
DE3227028A1
Cited
US4603170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |