US5032633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding compositions with high cold impact strength
Assignee: Evonik Operations GmbH
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Filing: 1990-02-28
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Granted: 1991-07-16
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Expires: 2010-02-28
Abstract
Abstract Thermoplastic molding compositions that contain (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of polyamide 10,12 and/or polyamide 12,12; and (B) 0 to 25 wt. % of a plasticizer, exhibit improved low temperature impact strength. The molding compositions may be used for the production of molded objects, especially tubes.
Inventors
- 👤 Michael Schlobohm
- 👤 Franz-Josef Schlautmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:01
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/43; C08L; C08L77/00; C08L77/04; C08L77/06
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
85 words
A thermoplastic molding composition, comprising: (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of at least one member selected from the group consisting of polyamide 10,12 and polyamide 12,12, wherein the relative solution viscosity (η rel .) of said polyamides is in the range of 1.5 to 3.0, and the sum of the parts by weight is equal to 100; and (B) 0 to 25 wt. %, based on the weight of (A), of a plasticizer.
Claim 2
Dependent Claim
85 words
A thermoplastic molding composition, comprising: (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of at least one member selected from the group consisting of polyamide 10,12 and polyamide 12,12, wherein the relative solution viscosity (η rel .) of said polyamides is in the range of 1.5 to 3.0, and the sum of the parts by weight is equal to 100; and (B) 0 to 25 wt. %, based on the weight of (A), of a plasticizer.
Claim 3
Dependent Claim
20 words
The molding composition of claim 1, wherein said plasticizer is present in an amount of 0 to 15 wt. %.
Claim 4
Dependent Claim
11 words
The molding composition of claim 1, wherein said plasticizer is N-(n-butyl)benzenesulfonamide.
Claim 5
Dependent Claim
21 words
The molding composition of claim 1, wherein said polyamides have a relative solution viscosity in the range of 1.8 to 2.5.
Claim 6
Dependent Claim
49 words
The molding composition of claim 1, wherein in (A) said polyamide 12 is present in an amount of 30 to 70 parts by weight and said member selected from the group consisting of polyamide 10,12 and 12,12 is present in an amount of 70 to 30 parts by weight.
Claim 7
Dependent Claim
89 words
A molded article, prepared from a molding composition, comprising: (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of at least one member selected from the group consisting of polyamide 10,12 and polyamide 12,12, wherein the relative solution viscosity (η rel .) of said polyamides is in the range of 1.5 to 3.0, and the sum of the parts by weight is equal to 100; and (B) 0 to 25 wt. %, based on the weight of (A), of a plasticizer.
Claim 8
Dependent Claim
89 words
A molded article, prepared from a molding composition, comprising: (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of at least one member selected from the group consisting of polyamide 10,12 and polyamide 12,12, wherein the relative solution viscosity (η rel .) of said polyamides is in the range of 1.5 to 3.0, and the sum of the parts by weight is equal to 100; and (B) 0 to 25 wt. %, based on the weight of (A), of a plasticizer.
Claim 9
Dependent Claim
20 words
The molded article of claim 6, wherein said plasticizer is present in an amount of 0 to 15 wt. %.
Claim 10
Dependent Claim
11 words
The molded article of claim 6 wherein said plasticizer is N-(n-butyl)benzenesulfonamide.
Claim 11
Dependent Claim
21 words
The molded article of claim 6, wherein said polyamides have a relative solution viscosity in the range of 1.8 to 2.5.
Claim 12
Dependent Claim
49 words
The molded article of claim 6, wherein in (A) said polyamide 12 is present in an amount of 30 to 70 parts by weight and said member selected from the group consisting of polyamide 10,12 and 12,12 is present in an amount of 70 to 30 parts by weight.
Claim 13
Dependent Claim
14 words
The molded article of claim 6, which is in the form of a tube.
Claim 14
Dependent Claim
93 words
A process for producing a molded article, comprising molding a molding composition comprising: (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of at least one member selected from the group consisting of polyamide 10,12 and polyamide 12,12, wherein the relative solution viscosity (η rel .) of said polyamides is in the range of 1.5 to 3.0, and the sum of the parts by weight is equal to 100; and (B) 0 to 25 wt. %, based on the weight of (A), of a plasticizer.
Claim 15
Dependent Claim
93 words
A process for producing a molded article, comprising molding a molding composition comprising: (A) 10 to 90 parts by weight of polyamide 12, and 90 to 10 parts by weight of at least one member selected from the group consisting of polyamide 10,12 and polyamide 12,12, wherein the relative solution viscosity (η rel .) of said polyamides is in the range of 1.5 to 3.0, and the sum of the parts by weight is equal to 100; and (B) 0 to 25 wt. %, based on the weight of (A), of a plasticizer.
Claim 16
Dependent Claim
23 words
The process of claim 12, wherein in said molding composition, said plasticizer is present in an amount of 0 to 15 wt. %.
Claim 17
Dependent Claim
10 words
The process of claim 12, wherein said plasticizer is N-(n-butyl)benzenesulfonamide.
Claim 18
Dependent Claim
20 words
The process of claim 12, wherein said polyamides have a relative solution viscosity in the range of 1.8 to 2.5.
Claim 19
Dependent Claim
48 words
The process of claim 12, wherein in (A) said polyamide 12 is present in an amount of 30 to 70 parts by weight and said member selected from the group consisting of polyamide 10,12 and 12,12 is present in an amount of 70 to 30 parts by weight.
Claim 20
Dependent Claim
14 words
The process of claim 12, wherein said molding is carried out by injection molding.
Claim 21
Dependent Claim
13 words
The process of claim 12, wherein said molding is carried out by extrusion.
Claim 22
Dependent Claim
16 words
The process of claim 12, wherein said molded article is in the form of a tube.
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JPS5317628A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-15 | 1995-01-14 | 1995-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-15 | 1999-01-14 | 1999-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-15 | 2003-01-14 | 2003-07-16 | $7700.00 | Window Closed / Lapsed |