US4732934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functionalized thermoplastic polymers, blends prepared therefrom, and methods for preparing blends
Assignee: SABIC Global Technologies BV
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Filing: 1986-12-08
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Granted: 1988-03-22
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Expires: 2006-12-08
Abstract
Abstract Thermoplastic materials may be functionalized and then blended with polyamides to form compatible products which contain a copolymer of the functionalized material and the polyamide.
Inventors
- 👤 Susan J. Hathaway
- 👤 Robert A. Pyles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:51
CPC Classifications
C; C08; C08L; C08L69/00; C08L101/00; C08L101/02; C08L101/06; C08L101/08; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/902
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A thermoplastic blend comprising the following, and reaction products thereof: (a) about 30% by weight to about 70% by weight of a thermoplastic polymer having recurring carbonate units in the main chain and end groups of the formula ##STR9## wherein R 1 is a trivalent group selected from the group consisting of aliphatic chains containing about 2-20 carbon atoms and aromatic groups containing about 6-20 carbon atoms; and Y and Z are individually selected from the group consisting of hydroxy and alkoxy groups, wherein Y and Z taken together are oxygen; and (b) about 30% by weight to about 70% by weight of a polyamide.
Claim 2
Dependent Claim
105 words
A thermoplastic blend comprising the following, and reaction products thereof: (a) about 30% by weight to about 70% by weight of a thermoplastic polymer having recurring carbonate units in the main chain and end groups of the formula ##STR9## wherein R 1 is a trivalent group selected from the group consisting of aliphatic chains containing about 2-20 carbon atoms and aromatic groups containing about 6-20 carbon atoms; and Y and Z are individually selected from the group consisting of hydroxy and alkoxy groups, wherein Y and Z taken together are oxygen; and (b) about 30% by weight to about 70% by weight of a polyamide.
Claim 3
Dependent Claim
10 words
The blend of claim 1 further comprising an impact modifier.
Claim 4
Dependent Claim
12 words
The blend of claim 2 wherein component (a) is a copolyester-carbonate polymer.
Claim 5
Dependent Claim
13 words
The blend of claim 2 wherein component (a) is an organopolysiloxane-polycarbonate block copolymer.
Claim 6
Dependent Claim
10 words
The blend of claim 2 wherein the polyamide is amorphous.
Claim 7
Dependent Claim
10 words
The blend of claim 2 wherein the polyamide is crystalline.
Claim 8
Dependent Claim
13 words
The blend of claim 2 wherein the impact modifier has a core/shell structure.
Claim 9
Dependent Claim
26 words
The blend of claim 7 wherein component (a) is the reaction product of 2,2-bis(4-hydroxyphenyl)propane and a carbonate precursor, said product functionalized by trimellitic anhydride acid chloride.
Claim 10
Dependent Claim
18 words
A copolymer of a polyamide and a functionalized thermoplastic polymer having recurring carbonate units in the main chain.
Claim 11
Dependent Claim
18 words
A copolymer of a polyamide and a functionalized thermoplastic polymer having recurring carbonate units in the main chain.
References Cited (Backward Citations)
JPS50116541A
Cited
JPS5126936A
Cited
US4377670A
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US4448953A
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US4431793A
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US4446296A
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US4584345A
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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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |