Patent US1699013A successfully refreshed from Google Patents.
Patent US4473686A successfully refreshed from Google Patents.
US4473686A
Expired / Lapsed
US
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Block copolymers
Assignee: Bayer AG
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Filing: 1983-06-01
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Granted: 1984-09-25
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Expires: 2003-06-01
Abstract
Abstract A block copolymer is produced from I. 1 to 60% by weight of at least one telechelic diene polymer containing terminal carbonate ester, --OH--, --NH 2 --, carboxylic acid or carboxylic acid ester groups and having a molecular weight M n of from about 400 to 1300, and II. 99 to 40% by weight of at least one polyamide or polyamide-forming component.
Inventors
- 👤 Ulrich Grigo
- 👤 Karl-Heinz Kohler
- 👤 Rudolf Binsack
- 👤 Leo Morbitzer
- 👤 Josef Merten
- 👤 Ludwig Bottenbruch
- 👤 Walter Heitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:13
CPC Classifications
C; C08; C08G; C08G81/00; C08G81/02; C08G81/024; C08G81/028; C08G69/00; Y; Y10; Y10S; Y10S525/00; Y10S525/911
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
A block copolymer produced by reacting two components consisting essentially of I. 1 to 60% by weight of at least one telechelic diene polymer containing terminal carbonate ester, --OH--, --NH 2 -- , carboxylic acid or carboxylic acid ester groups and having a molecular weight M n of from about 450 to 1000, and II. 99 to 40% by weight of at least one polyamide or polyamide-forming component.
Claim 2
Dependent Claim
68 words
A block copolymer produced by reacting two components consisting essentially of I. 1 to 60% by weight of at least one telechelic diene polymer containing terminal carbonate ester, --OH--, --NH 2 -- , carboxylic acid or carboxylic acid ester groups and having a molecular weight M n of from about 450 to 1000, and II. 99 to 40% by weight of at least one polyamide or polyamide-forming component.
Claim 3
Dependent Claim
34 words
A block copolymer as claimed in claim 1, prepared from I. 5 to 45% by weight of the diene polymer, and II. 95 to 55% by weight of the polyamide or polyamide forming components.
Claim 4
Dependent Claim
96 words
A block copolymer as claimed in claim 1, wherein the diene polymer is a linear compound containing two terminal reactive groups and corresponding to the following general formula R.sup.1 --R--(X).sub.n --R--R.sup.1 in which ##STR3## where R 3 to R 8 , each independently, =C 1 -C 4 -alkyl, H or halogen; n=about 6-90; R=a single bond or an alkylidene group containing from 1 to 3 C-atoms; and R 1 =--COOR 2 , --OH, --NH 2 , --OCOOR 2 where R 2 =hydrogen, a C 1 -C 10 -alkyl or a C 5 -C 10 -cycloalkyl group.
Claim 5
Dependent Claim
27 words
A block copolymer as claimed in claim 1 containing 5 to 40% by weight, based on the total sum of all components, of fillers and/or reinforcing materials.
Claim 6
Dependent Claim
13 words
A moulded product produced from a block copolymer as claimed in claim 1.
References Cited (Backward Citations)
GB1169737A
Cited
US4018731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |