US4728693A
Expired / Lapsed
US
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Impact-resistant thermoplastic molding compounds based on polyphenylene ethers, polyoctenylenes and polyamides
Assignee: Huels AG
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Filing: 1986-05-22
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Granted: 1988-03-01
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Expires: 2006-05-22
Abstract
Abstract A thermoplastic resin composition, which comprises (a) from 5 to 85 parts by weight of a melted or remelted preliminary molding compound consisting of from 60 to 98 parts by weight of polyphenylene ethers, 40 to 2 parts by weight of polyoctylenes, from 0.1 to 5 parts by weight of maleic anhydride and from 0.1 to 5 parts by weight of a further acid derivative which has a melting point below 100° C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; and (b) from 95 to 15 parts by weight of an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units.
Inventors
- 👤 Michael Droscher
- 👤 Hans Jadamus
- 👤 Wolfgang Neugebauer
- 👤 Martin Bartmann
- 👤 Klaus Burzin
- 👤 Roland Feinauer
- 👤 Christian Gerth
- 👤 Wilfried Ribbing
- 👤 Jorg Lohmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:55
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L77/00; C08L65/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
145 words
A thermoplastic resin composition, which comprises: (a) from 5 to 85 parts by weight of a preliminary molding compound prepared by the melting of a mixture consisting of from 60 to 98 parts by weight of polyphenylene ethers, 40 to 2 parts by weight of polyoctenylenes, from 0.1 to 5 parts by weight of maleic anhydride and from 0.1 to 5 parts by weight of an acid derivative which has a melting point below 100° C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of said mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; (b) from 95 to 15 parts by weight of an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units.
Claim 2
Dependent Claim
145 words
A thermoplastic resin composition, which comprises: (a) from 5 to 85 parts by weight of a preliminary molding compound prepared by the melting of a mixture consisting of from 60 to 98 parts by weight of polyphenylene ethers, 40 to 2 parts by weight of polyoctenylenes, from 0.1 to 5 parts by weight of maleic anhydride and from 0.1 to 5 parts by weight of an acid derivative which has a melting point below 100° C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of said mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; (b) from 95 to 15 parts by weight of an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units.
Claim 3
Dependent Claim
29 words
The thermoplastic resin composition of claim 1, which further comprises: (c) at least one component selected from the group consisting of polystyrene resins, a flame retardant and compounding additives.
Claim 4
Dependent Claim
35 words
The thermoplastic resin composition of claim 1, which comprises (a) from 20 to 50 parts by weight of said preliminary molding compound, and (b) from 80 to 50 parts by weight of said polyamide component.
Claim 5
Dependent Claim
18 words
The thermoplastic resin composition of claim 1, wherein said polyamide is 6-, 46-, 66-, 612-, 11- or 12-polyamide.
Claim 6
Dependent Claim
20 words
The thermoplastic resin composition of claim 1, wherein the number average molecular weight of said polyamides is higher than 5,000.
Claim 7
Dependent Claim
17 words
The thermoplastic resin composition of claim 5, wherein the number average molecular weight is higher than 10,000.
Claim 8
Dependent Claim
27 words
The thermoplastic resin composition of claim 1, wherein said polyphenylene ether is a polymer of 2,6-dimethylphenol having an intrinsic viscosity of 0.3 to 0.65 cm 3 /g.
Claim 9
Dependent Claim
29 words
The thermoplastic resin composition of claim 1, wherein said polyoctenylenes have a viscosity number of 50 to 350 cm 3 /g as determined in a 0.1% solution in toluene.
Claim 10
Dependent Claim
18 words
The thermoplastic resin composition of claim 8, wherein said viscosity ranges from 80 to 160 cm 3 /g.
Claim 11
Dependent Claim
24 words
The thermoplastic resin composition of claim 1, wherein from 55 to 95% of the double bonds in said polyoctenylene are in the trans configuration.
Claim 12
Dependent Claim
21 words
The thermoplastic resin composition of claim 10, wherein from 75 to 85% of said double bonds are in the trans configuration.
Claim 13
Dependent Claim
21 words
The thermoplastic resin composition of claim 1, wherein said ester of an unsaturated monocarboxylic acid is a C 1-6 alkyl ester.
Claim 14
Dependent Claim
12 words
The thermoplastic resin composition of claim 12, wherein said ester is n-butylacrylate.
Claim 15
Dependent Claim
24 words
The thermoplastic resin composition of claim 1, wherein said ester of an unsaturated dicarboxylic acid is a C 1-6 alkyl ester of fumaric acid.
Claim 16
Dependent Claim
17 words
The thermoplastic resin composition of claim 14, wherein said ester is the di-n-butyl ester of fumaric acid.
Claim 17
Dependent Claim
32 words
The thermoplastic resin composition of claim 1, wherein said polyphenylene ether in the form of particles which have a volume average diameter less than 2 μm is dispersed in the polyamide matrix.
Claim 18
Dependent Claim
109 words
A process for producing a thermoplastic resin composition, comprising: (a) combining a mixture of polyphenylene ethers and polyoctenylenes with maleic anhydride and an acid derivative which has a melting point below 100° C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of said mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; (b) melting the mixture obtained; and then (c) adding a polyamide which is an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units to said melt.
Claim 19
Dependent Claim
109 words
A process for producing a thermoplastic resin composition, comprising: (a) combining a mixture of polyphenylene ethers and polyoctenylenes with maleic anhydride and an acid derivative which has a melting point below 100° C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of said mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; (b) melting the mixture obtained; and then (c) adding a polyamide which is an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units to said melt.
Claim 20
Dependent Claim
34 words
The process of claim 17, wherein a liquid mixture of maleic anhydride and the acid derivative is diffused into the solid mixture of polyphenylene ether and said polyoctenylene at a temperature below 100° C.
Claim 21
Dependent Claim
12 words
The process of claim 18, wherein said temperature is below 50° C.
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) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |