EP0325030A2
Expired / Lapsed
EP
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Polyamide resin compositions and laminates thereof
Assignee: Mitsui Chemicals Inc
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Filing: 1988-11-15
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Granted: —
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Expires: 2008-11-15
Abstract
Abstract A polyamide resin composition which comprises: (A) a random polyamide comprising (a) at least one isphthaloyl diamine component represented by the general formula (I) of wherein R⁰ represents a divalent hydrocarbon group of 4-25 carbons, in a total amount of 50-100 mole %; and (b) at least one diacyloyl diamine component represented by the general formula (II) of -[NH-R⁰-NHCO-Ar-CO)- wherein R⁰ is as defined above and Ar represents a divalent aromatic hydrocarbon group of 6-20 carbons but is not a 1,3-phenylene group, in a total amount of 50-0 mole %, and (B) a polyamide comprising: (c) at least one diamine component of 4-25 carbons or dicarboxylic acid component of 4-20 carbons which have no aromatic nuclei; or (d) at least one aminocarboxylic acid component; or (e) at least one diamine component of 4-25 carbonss,dicarboxylic acid component of 4-20 carbons which has no aromatic nuclei, or aminocarboxylic acid component. The composition has high impermeability and a low glass transition temperature and may be used to manufacture laminates and moulded articles.
Inventors
- 👤 Yurimasa Zenitani
- 👤 Toru Taguchi
- 👤 Akio Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 01:56
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/34; C; C08; C08L; C08L77/00; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/40; B32B2307/412; B32B2377/00; B32B2439/00; B32B2439/40; B32B2439/60
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A polyamide resin composition which comprises: (A) a random polyamide comprising (a) at least one isophthaloyl diamine component represented by the general formula (I) of wherein R⁰ represents a divalent hydrocarbon group of 4-25 carbons, in a total amount of 50-100 mole %; and (b) at least one diacyloyl diamine component represented by the general formula (II) of -[NH-R⁰-NHCO-Ar-CO]- wherein R⁰ is as defined above and Ar represents a divalent aromatic hydrocarbon group of 6-20 carbons but is not a 1,3-phenylene group, in a total amount of 50-0 mole %, and (B) a polyamide comprising: (c) at least one diamine component of 4-25 carbons or dicarboxylic acid component of 4-20 carbons which have no aromatic nuclei; or (d) at least one aminocarboxylic acid component; or (e) at least one diamine component of 4-25 carbons, dicarboxylic acid component of 4-20 carbons which has no aromatic nuclei, or aminocarboxylic acid component.
Claim 2
Dependent Claim
149 words
A polyamide resin composition which comprises: (A) a random polyamide comprising (a) at least one isophthaloyl diamine component represented by the general formula (I) of wherein R⁰ represents a divalent hydrocarbon group of 4-25 carbons, in a total amount of 50-100 mole %; and (b) at least one diacyloyl diamine component represented by the general formula (II) of -[NH-R⁰-NHCO-Ar-CO]- wherein R⁰ is as defined above and Ar represents a divalent aromatic hydrocarbon group of 6-20 carbons but is not a 1,3-phenylene group, in a total amount of 50-0 mole %, and (B) a polyamide comprising: (c) at least one diamine component of 4-25 carbons or dicarboxylic acid component of 4-20 carbons which have no aromatic nuclei; or (d) at least one aminocarboxylic acid component; or (e) at least one diamine component of 4-25 carbons, dicarboxylic acid component of 4-20 carbons which has no aromatic nuclei, or aminocarboxylic acid component.
Claim 3
Dependent Claim
38 words
A polyamide resin composition according to Claim 1 comprising the at least one isophthaloyl diamine component in an amount of 60-95 mole % and the at least one diacyloyl diamine component in an amount of 5-40 mole %.
Claim 4
Dependent Claim
37 words
A polyamide resin composition according to Claim 1 comprising the at least one isophthaloyl diamine component in an amount of 65-85 mole % and the at least one diacyloyl diamine component in an amount of 15-35 %.
Claim 5
Dependent Claim
98 words
A polyamide resin composition according to any one of the preceding claims wherein the at least one isophthaloyl diamine component and the at least one diacyloyl diamine component each comprise a first diamine component wherein R⁰ is R¹ in an amount of 5-98 mole % and a second diamine component wherein R⁰ is R² and/or R³ in an amount of 95-2 mole % wherein R¹ is a divalent aliphatic hydrocarbon group of 4-25 carbon atoms; R² is a divalent alicyclic hydrocarbon group of 6-25 carbon atoms; and R³ is a divalent aromatic hydrocabon group of 6-25 carbon atoms.
Claim 6
Dependent Claim
32 words
A polyamide resin composition according to Claim 4 comprising the first diamine component in an amount of 40-85 mole % and the second diamine component in an amount of 60-15 mole %.
Claim 7
Dependent Claim
59 words
A polyamide resin composition according to any one of the preceding claims which has a melt flow rate of 1.66 x 10⁻⁴ to 0.33g/s (0.1-200 g/10 minutes) as determined at 300°C at a load of 2 kg, a crystallinity of not less than 7 % as determined by an X-ray diffraction method, and a glass transition temperature of 40-240°C.
Claim 8
Dependent Claim
23 words
A laminate or blend which comprises: a polyamide resin composition as claimed in any one of the preceding claims and a second resin.
Claim 9
Dependent Claim
20 words
A laminate or blend as claimed in Claim 7 wherein the second resin comprises polyethylene terephthalate, polycarbonate or a polyolefin.
Claim 10
Dependent Claim
29 words
A moulded article manufactured from a polyamide resin composition according to any one of Claims 1 to 6, or a laminate or blend according to Claim 7 or 8.
Claim 11
Dependent Claim
11 words
A moulded article according to Claim 9 which is a bottle.
References Cited (Backward Citations)
No citation records indexed.
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