Patent US4100223A successfully refreshed from Google Patents.
US4100223A
Expired / Lapsed
US
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Process for the production of high-impact thermoplastic moulding compositions
Assignee: Bayer AG
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Filing: 1977-03-15
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Granted: 1978-07-11
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Expires: 1997-03-15
Abstract
Abstract A moulding composition consisting of: From 60 to 93 parts, by weight, of a polyamide; From 6 to 30 parts, by weight, of a polyethylene; and From 1 to 20 parts, by weight, of a copolymer of an aromatic vinyl compound, an α, β-unsaturated mono- and/or di-carboxylic acid or an anhydride thereof, free acid groups optionally being neutralized by a mono- and/or poly-amine or with ammonia, and an ester of the said mono- and or di-carboxylic acid.
Inventors
- 👤 Rolf-Volker Meyer
- 👤 Rolf Dhein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:35
CPC Classifications
C; C08; C08L; C08L77/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
93 words
A moulding composition consisting essentially of: (1) from 60 to 93 parts, by weight, of a polyamide; (2) from 6 to 30 parts, by weight, of a polyethylene; and (3) from to 20 parts, by weight, of a copolymer of an aromatic vinyl compound, an α,β-unsaturated mono- and/or di-carboxylic acid or an anhydride thereof, free acid groups optionally being neutralised by a mono- and/or poly-amine or with ammonia, and an ester of the said mono- and or di-carboxylic acid; the total of components (1), (2) and (3) amounting to 100 parts, by weight.
Claim 2
Dependent Claim
93 words
A moulding composition consisting essentially of: (1) from 60 to 93 parts, by weight, of a polyamide; (2) from 6 to 30 parts, by weight, of a polyethylene; and (3) from to 20 parts, by weight, of a copolymer of an aromatic vinyl compound, an α,β-unsaturated mono- and/or di-carboxylic acid or an anhydride thereof, free acid groups optionally being neutralised by a mono- and/or poly-amine or with ammonia, and an ester of the said mono- and or di-carboxylic acid; the total of components (1), (2) and (3) amounting to 100 parts, by weight.
Claim 3
Dependent Claim
55 words
A composition as claimed in claim 1 which consists essentially of: from 80 to 90 Parts, by weight, of component (1); from 8 to 20 parts, by weight, of component (2); and from 2 to 10 parts, by weight, of component (3), the total of components (1) to (3) amounting to 100 parts by weight.
Claim 4
Dependent Claim
73 words
A composition as claimed in claim 1 in which component (3) comprises a copolymer of from (a) 30-85 parts by weight of a C 8 -C 10 aromatic vinyl compound, from (c) 1-20 parts by weight of an α,β-unsaturated mono- and/or di-carboxylic acid or an anhydride thereof and from 14.9-50 parts by weight of an ester of the said mono- and/or di-carboxylic acid, the total of the component, being 100 parts by weight.
Claim 5
Dependent Claim
69 words
A composition as claimed in claim 1 in which component (3) consists of: (a) from 30 to 85 parts, by weight, of styrene; (b) from 14.9 to 50 parts, by weight, of an ester of an α,β-unsaturated mono- and/or di-carboxylic acid; and (c) from 1 to 20 parts, by weight, of an α,β-unsaturated mono- and/or di-carboxylic acid; the total of component (a) to (c) being 100 parts, by weight.
Claim 6
Dependent Claim
44 words
A composition as claimed in claim 4 in which component (3) consists of: from 40 to 79 parts, by weight, of component (a); from 20 to 50 parts, by weight, of component (b); and from 5 to 15 parts, by weight, of component (b).
Claim 7
Dependent Claim
25 words
A composition as claimed in claim 4 in which the ester of component (b) contains from 1 to 8 carbon atoms in the alcohol portion.
Claim 8
Dependent Claim
60 words
A composition as claimed in claim 1 in which component (3) comprises: (a) from 40 to 79 parts, by weight, of styrene; (b) from 40 to 20 parts, by weight, of (meth)acrylic acid n-butyl ester; and (c) from 20 to 1 parts, by weight, of (meth)acrylic acid, the total of the components a to b, being 100 parts by weight.
Claim 9
Dependent Claim
28 words
A composition as claimed in claim 1 in which component (3) has an intrinsic viscosity, as measured at 25° C in tetrahydrofurane, of from 0.1 to 1.6 dl/g.
Claim 10
Dependent Claim
18 words
A composition as claimed in claim 8 in which the intrinsic viscosity is from 0.6 to 1.2 dl/g.
Claim 11
Dependent Claim
22 words
A composition as claimed in claim 1 in which component (3) has an acid number of from 66 to 125 mg/g KOH.
Claim 12
Dependent Claim
19 words
A composition as claimed in claim 10 in which the acid number is from 85 to 117 mg/g KOH.
Claim 13
Dependent Claim
22 words
A composition as claimed in claim 1 in which component (3) has a glass transition temperature of from 40° to 80° C.
Claim 14
Dependent Claim
15 words
A composition as claimed in claim 1 in which component (1) is polyamide-6 or polyamide-6,6.
Claim 15
Dependent Claim
27 words
A composition as claimed in claim 1 in which component (2) is a polyethylene having a melt index of > 10g/10 mins (as measured at 190° C.).
References Cited (Backward Citations)
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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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |