Patent US4554320A successfully refreshed from Google Patents.
US4554320A
Expired / Lapsed
US
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Nylon molding materials having high impact strength
Assignee: BASF SE
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Filing: 1985-02-13
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Granted: 1985-11-19
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Expires: 2005-02-13
Abstract
Abstract Novel nylon molding materials having high impact strength contain, as an additive, a copolymer of ethylene, a primary or secondary C 2 -C 8 -alkyl acrylate or methacrylate and a monomer possessing a (latent) acid functional group, in particular an ethylene/n-butyl acrylate/acrylic acid copolymer.
Inventors
- 👤 Horst Reimann
- 👤 Walter Ziegler
- 👤 Franz Brandstetter
- 👤 Rainer Theysohn
- 👤 Richard Pflueger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:15
CPC Classifications
C; C08; C08L; C08L77/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
175 words
A nylon molding material which has high impact strength and contains (A) a thermoplastic nylon having a relative viscosity of from 2.5 to 5, and (B) from 5 to 65% by weight, based on (A), of a non-crosslinked copolymer which contains three or more components and is characterized by a melting range of from 40° to 100° C., a glass transition temperature of below -20° C. and a shear modulus of less than 100 (Nmm -2 ) at -20° C., less than 50 (Nmm -2 ) at 0° C. and less than 20 (Nmm -2 ) at +20° C.; said copolymer comprising: (a) from 55 to 75% by weight of ethylene, (b) from 20 to 40% by weight of one or more primary or secondary C 2 -C 8 -alkyl acrylates or methacrylates and (c) from 0.5 to 8% by weight of a monomer selected from the group consisting of maleic anhydride, acrylic acid and methacrylic acid, the sum of components (a)-(c) being 100% by weight, with or without (C) effective amounts of conventional additives.
Claim 2
Dependent Claim
175 words
A nylon molding material which has high impact strength and contains (A) a thermoplastic nylon having a relative viscosity of from 2.5 to 5, and (B) from 5 to 65% by weight, based on (A), of a non-crosslinked copolymer which contains three or more components and is characterized by a melting range of from 40° to 100° C., a glass transition temperature of below -20° C. and a shear modulus of less than 100 (Nmm -2 ) at -20° C., less than 50 (Nmm -2 ) at 0° C. and less than 20 (Nmm -2 ) at +20° C.; said copolymer comprising: (a) from 55 to 75% by weight of ethylene, (b) from 20 to 40% by weight of one or more primary or secondary C 2 -C 8 -alkyl acrylates or methacrylates and (c) from 0.5 to 8% by weight of a monomer selected from the group consisting of maleic anhydride, acrylic acid and methacrylic acid, the sum of components (a)-(c) being 100% by weight, with or without (C) effective amounts of conventional additives.
Claim 3
Dependent Claim
19 words
A nylon molding material having high impact strength, as claimed in claim 1, wherein component (b) is n-butyl acrylate.
Claim 4
Dependent Claim
162 words
A nylon molding material which has high impact strength and contains (A) a thermoplastic nylon having a relative viscosity of from 2.5 to 5, and (B) from 5 to 65% by weight, based on (A), of a non-crosslinked copolymer which contains three or more components and is characterized by a melting range of from 40° to 100° C., a glass transition temperature of below -20° C. and a shear modulus of less than 100 (Nmm -2 ) at -20° C., less than 50 (Nmm -2 ) at 0° C. and less than 20 (Nmm -2 ) at +20° C.; said copolymer comprising: (a) from 55 to 75% by weight of ethylene, (b) from 20 to 40% by weight of one or more primary or secondary C 2 -C 8 -alkyl acrylates or methacrylates and (c) from 0.5 to 8% by weight of maleic anhydride, the sum of components (a)-(c) being 100% by weight, with or without (C) effective amounts of conventional additives.
Claim 5
Dependent Claim
162 words
A nylon molding material which has high impact strength and contains (A) a thermoplastic nylon having a relative viscosity of from 2.5 to 5, and (B) from 5 to 65% by weight, based on (A), of a non-crosslinked copolymer which contains three or more components and is characterized by a melting range of from 40° to 100° C., a glass transition temperature of below -20° C. and a shear modulus of less than 100 (Nmm -2 ) at -20° C., less than 50 (Nmm -2 ) at 0° C. and less than 20 (Nmm -2 ) at +20° C.; said copolymer comprising: (a) from 55 to 75% by weight of ethylene, (b) from 20 to 40% by weight of one or more primary or secondary C 2 -C 8 -alkyl acrylates or methacrylates and (c) from 0.5 to 8% by weight of maleic anhydride, the sum of components (a)-(c) being 100% by weight, with or without (C) effective amounts of conventional additives.
Claim 6
Dependent Claim
165 words
A nylon molding material which has high impact strength and contains (A) a thermoplastic nylon having a relative viscosity of from 2.5 to 5, and (B) from 5 to 65% by weight, based on (A), of a non-crosslinked copolymer which contains three or more components and is characterized by a melting range of from 40° to 100° C., a glass transition temperature of below 20° C. and a shear modulus of less than 100 (Nmm -2 ) at -20° C., less than 50 (Nmm -2 ) at 0° C. and less than 20 (Nmm -2 ) at +20 C.; said copolymer comprising: (a) from 56 to 68.5% by weight of ethylene, (b) from 31 to 36% by weight of one or more primary or secondary C 2 -C 8 -alkyl acrylates or methacrylates and (c) from 0.5 to 8% by weight of acrylic acid or methacrylic acid, the sum of components (a)-(c) being 100% by weight, with or without (C) effective amounts of conventional additives.
Claim 7
Dependent Claim
165 words
A nylon molding material which has high impact strength and contains (A) a thermoplastic nylon having a relative viscosity of from 2.5 to 5, and (B) from 5 to 65% by weight, based on (A), of a non-crosslinked copolymer which contains three or more components and is characterized by a melting range of from 40° to 100° C., a glass transition temperature of below 20° C. and a shear modulus of less than 100 (Nmm -2 ) at -20° C., less than 50 (Nmm -2 ) at 0° C. and less than 20 (Nmm -2 ) at +20 C.; said copolymer comprising: (a) from 56 to 68.5% by weight of ethylene, (b) from 31 to 36% by weight of one or more primary or secondary C 2 -C 8 -alkyl acrylates or methacrylates and (c) from 0.5 to 8% by weight of acrylic acid or methacrylic acid, the sum of components (a)-(c) being 100% by weight, with or without (C) effective amounts of conventional additives.
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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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |