← Back to Patent Explorer
EP0000583B1 Expired / Lapsed EP ⏱️ 0.0 years remaining

High impact resistance polyamide compound and its use in mouldings

Assignee: Bayer AG
•
Filing: 1978-07-26
•
Granted: 1981-04-08
•
Expires: 1998-07-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Rolf-Volker Dr. Meyer
  • 👤 Rolf Dr. Dhein
  • 👤 Friedrich Fahnler

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 14:00
CPC Classifications
C; C08; C08L; C08L77/00

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 219 words
High impact polyamide blends consisting of 1) 60-95% by weight of a polyamide and 2) 5-40% by weight of at least one further high molecular weight polymer from the group consisting of a) aliphatic polyolefins, b) olefinic copolymers composed of a) 65-98% by weight of an aliphatic monoolefin with 2-4 carbon atoms and ß) 35-2% by weight of (meth)acrylic acid or (meth)acrylic acid esters with 2 to 10 carbon atoms, c) copolymers of y) 50-70% by weight of styrene, ε) 5-15% by weight of (meth)acrylic acid and p) 20-30% by weight of a (meth)acrylic acid ester, d) polymers of a') 70-100% by weight of dienes with 4-5 carbon atoms and ß') 0-30% by weight of acrylonitrile and e) high molecular weight organic silicon compounds, on the condition that the sum of 1 + 2, of a to e, a + β , a' + β , and y, ε and ϕ is in each case always 100% by weight and that component 2a) is invariably used in admixture either with component 2b) or with component 2c) and in amounts of 99.9-97% by weight of component 2a) and 0.1 -3% by weight of component 2c), characterised in that the polyamide has a relative viscosity of at least 3.5, measured using a 1% solution of the polyamide in m-cresol at 25°C.
Claim 2
Dependent Claim 219 words
High impact polyamide blends consisting of 1) 60-95% by weight of a polyamide and 2) 5-40% by weight of at least one further high molecular weight polymer from the group consisting of a) aliphatic polyolefins, b) olefinic copolymers composed of a) 65-98% by weight of an aliphatic monoolefin with 2-4 carbon atoms and ß) 35-2% by weight of (meth)acrylic acid or (meth)acrylic acid esters with 2 to 10 carbon atoms, c) copolymers of y) 50-70% by weight of styrene, ε) 5-15% by weight of (meth)acrylic acid and p) 20-30% by weight of a (meth)acrylic acid ester, d) polymers of a') 70-100% by weight of dienes with 4-5 carbon atoms and ß') 0-30% by weight of acrylonitrile and e) high molecular weight organic silicon compounds, on the condition that the sum of 1 + 2, of a to e, a + β , a' + β , and y, ε and ϕ is in each case always 100% by weight and that component 2a) is invariably used in admixture either with component 2b) or with component 2c) and in amounts of 99.9-97% by weight of component 2a) and 0.1 -3% by weight of component 2c), characterised in that the polyamide has a relative viscosity of at least 3.5, measured using a 1% solution of the polyamide in m-cresol at 25°C.
Claim 3
Dependent Claim 25 words
Polyamide blends according to claim 1, characterised in that they consist of 70-90% by weight of component 1 and 30-10% by weight of component 2).
Claim 4
Dependent Claim 15 words
Polyamide blends according to claim 1, characterised in that 6-polyamide is used as component 1.
Claim 5
Dependent Claim 98 words
Polyamide blends according to claim 1, characterised in that polyethylene or a poly- ethylene/polypropylene copolymer is used as component 2a), a copolymer of ethylene, (meth)acrylic acid or methacrylic acid esters with 2-7 carbon atoms in the alcoholic component are used as component 2b), a copolymer of styrene, (meth)acrylic acid and (meth)acrylic acid ester with 4-7 carbon atoms in the alcoholic component are used as component 2c), polybutadiene, polyisoprene or a copolymer of butadiene and/or isoprene with acrylonitrile is used as component 2d) and a polydimethylsiloxane with a molecular weight of at least 10,000 is used as component 2e).
Claim 6
Dependent Claim 29 words
Polyamide blends according to claim 4, characterised in that n-butyl or tert.-butyl esters of (meth)acrylic acid are used as the (meth)acrylic acid esters in the components 2b) and 2c).
Claim 7
Dependent Claim 26 words
Polyamide blends according to claim 1, characterised in that the mixture consists of 99-98% by weight of component 2a) and 1-2% by weight of component 2c).
Claim 8
Dependent Claim 17 words
Polyamide blends according to claim 1, characterised in that only component 2b) is used as component 2.
Claim 9
Dependent Claim 10 words
Moulded products produced from polyamide blends according to claim 1-7.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag