US4187358A
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Resin composition
Assignee: Unitika Ltd
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Filing: 1978-12-28
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Granted: 1980-02-05
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Expires: 1998-12-28
Abstract
Abstract A resin composition comprising (A) an aromatic copolyester derived from (i) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof and (ii) a bisphenol and/or the functional derivatives thereof; (B) a polyamide; and (C) an ionomer. Molded articles prepared from the resin composition exhibit superior thermal stability, mechanical properties and molding characteristics, especially superior impact characteristics and relatively thin molded articles are resistant to flexing.
Inventors
- 👤 Kayomon Kyo
- 👤 Yasuhiko Asai
- 👤 Sadao Kato
- 👤 Tadashi Ishikura
- 👤 Hiroshi Sugawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:34
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L67/03; C08L33/00; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/919
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
240 words
A resin composition comprising (A) about 5 to about 94.9% by weight of an aromatic copolyester comprising the reaction product in about equimolar amounts of (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof with the terephthalic acid unit to the isophthalic acid unit molar ratio being about 9:1 to about 1:9 and (2) a bisphenol of the general formula [I] ##STR6## wherein --X-- represents a member selected from the group consisting of --O--, --S--, --SO 2 --, --SO--, --CO--, an alkylene group containing 1 to 5 carbon atoms and an alkylidene group containing 1 to 5 carbon atoms, and R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ' and R 4 ', which may be the same or different, each is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 5 carbon atoms, and/or a derivative thereof; (B) about 5 to about 94.9% by weight of a polyamide containing therein a repeating unit of the following general formula [II]: ##STR7## wherein R 5 , R 6 and R 7 , which may be the same or different, each represents an alkylene group containing 4 to 11 carbon atoms and n is an integer from 30 to 500, and (C) about 0.1 to about 90% by weight of an ionomer.
Claim 2
Dependent Claim
240 words
A resin composition comprising (A) about 5 to about 94.9% by weight of an aromatic copolyester comprising the reaction product in about equimolar amounts of (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof with the terephthalic acid unit to the isophthalic acid unit molar ratio being about 9:1 to about 1:9 and (2) a bisphenol of the general formula [I] ##STR6## wherein --X-- represents a member selected from the group consisting of --O--, --S--, --SO 2 --, --SO--, --CO--, an alkylene group containing 1 to 5 carbon atoms and an alkylidene group containing 1 to 5 carbon atoms, and R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ' and R 4 ', which may be the same or different, each is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 5 carbon atoms, and/or a derivative thereof; (B) about 5 to about 94.9% by weight of a polyamide containing therein a repeating unit of the following general formula [II]: ##STR7## wherein R 5 , R 6 and R 7 , which may be the same or different, each represents an alkylene group containing 4 to 11 carbon atoms and n is an integer from 30 to 500, and (C) about 0.1 to about 90% by weight of an ionomer.
Claim 3
Dependent Claim
10 words
The composition of claim 1, wherein the bisphenol is 2,2-bis(4'-hydroxyphenyl)propane.
Claim 4
Dependent Claim
10 words
The composition of claim 1, wherein the polyamide is polycaprolactam.
Claim 5
Dependent Claim
11 words
The composition of claim 1, wherein the polyamide is polyhexamethylene adipamide.
Claim 6
Dependent Claim
15 words
The composition of claim 1, wherein the ionomer is an ionomer containing a zinc ion.
Claim 7
Dependent Claim
36 words
The composition of claim 1, wherein the weight ratio of component (A) to that of component (B) is from 25:75 to 75:25, and component (C) is present in an amount of 2 to 25% by weight.
Claim 8
Dependent Claim
43 words
The composition of claim 1, wherein the weight ratio of the content of component (A) to that of component (B) is from 25:75 to 75:25, and component (C) is present in an amount of more than 25% but less than 50% by weight.
Claim 9
Dependent Claim
43 words
The composition of claim 1, wherein the weight ratio of the content of component (A) to that of component (B) is from 25:75 to 75:25, and component (C) is present in an amount of more than 50% but less than 80% by weight.
Claim 10
Dependent Claim
44 words
The resin composition of claim 1, wherein the ionomer contains a metal ion selected from the group consisting of Na + , K + , Li + , Cu 2+ , Be 2+ , Mg 2+ , Zn 2+ , and Al 3+ .
Claim 11
Dependent Claim
18 words
The resin composition of claim 9, wherein said ionomer metal ion is Cu 2+ or Zn 2+ .
Claim 12
Dependent Claim
80 words
The resin composition of claim 1, wherein the base copolymer of said ionomer is a copolymer of an α-olefin of the general formula RCH═CH 2 , wherein R represents a hydrogen atom, a formyloxy group, an acetoxy group, a benzoyloxy group, a hydroxy group, a halogen atom, an alkyl group containing 1 to 8 carbon atoms, an aryl group containing 6 to 12 carbon atoms or an alicyclic group containing 6 to 12 carbon atoms; and an α,β-unsaturated carboxylic acid.
Claim 13
Dependent Claim
18 words
The resin composition of claim 11, wherein said base copolymer is ethylene-acrylic acid copolymer or ethylene-methacrylic acid copolymer.
Claim 14
Dependent Claim
20 words
The resin composition of claim 1, wherein component (A) is present in an amount of at least 25% by weight.
Claim 15
Dependent Claim
20 words
The resin composition of claim 13, wherein component (B) is present in an amount of at least 25% by weight.
Claim 16
Dependent Claim
12 words
The resin composition of claim 1, wherein said composition contains a filler.
Claim 17
Dependent Claim
20 words
The resin composition of claim 1, wherein said composition contains 0.01 to 5% by weight of a heat decomposition inhibitor.
Claim 18
Dependent Claim
19 words
The resin composition of claim 16, wherein said inhibitor is a combination of an amine compound and cuprous chloride.
Claim 19
Dependent Claim
73 words
The resin composition of claim 1, wherein said composition is prepared by a method which comprises melt-mixing said aromatic copolyester (A) and said polyamide (B) first to form a resin composition, and mixing the composition with an ionomer in the molten state, or a method which comprises melt-mixing the ionomer and said polyamide (B) to form a resin composition, and then mixing the composition with said aromatic copolyester (A) in the molten state.
Claim 20
Dependent Claim
34 words
The resin composition of claim 1, wherein said bisphenol is selected from the group consisting of 4,4'-dihydroxy-diphenyl ether, bis(4-hydroxy-2-methylphenyl)ether, bis(4-hydroxy-3-chlorophenyl)ether, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)ketone, bis(4-hydroxyphenyl)methane, bis(4-hydroxy-3-methylphenyl)methane, bis(4-hydroxy-3,5-dichlorophenyl)methane, bis(4-hydroxy-3,5-dibromophenyl)methane, 1,1-bis(4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxy-3-methylphenyl)propane, 2,2-bis(4-hydroxy-3-chlorophenyl)propane, 2,2-bis(4-hydroxy-3,5-dichlorophenyl)propane, 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane, and 1,1-bis(4-hydroxyphenyl)-n-butane.
Claim 21
Dependent Claim
25 words
The resin composition of claim 1, wherein said polyamide is selected from the group consisting of polyhexamethylene adipamide, polycaprolactam, polyhexamethylene sebacamide, polyaminoundecanoic acid, and polylaurolactam.
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) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |