US4665122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate blends
Assignee: BP Corp North America Inc
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Filing: 1985-07-24
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Granted: 1987-05-12
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Expires: 2005-07-24
Abstract
Abstract A moldable and compatible blend of 5 to 95 weight percent polycarbonate comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR1## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR2## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula ##STR3## wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each Z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R 1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO 2 , S or a direct bond, with the proviso that when R 1 is SO 2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styrenic polymer.
Inventors
- 👤 Lloyd M. Robeson
- 👤 James E. Harris
- 👤 Louis M. Maresca
- 👤 James H. Kawakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:56
CPC Classifications
C; C08; C08L; C08L25/00; C08L55/00; C08L55/02; C08L69/00; C08L81/00; C08L81/06
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
159 words
A moldable and compatable blend of 5 to 95 weight percent polycarbonate comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR10## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR11## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula ##STR12## wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R 1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO 2 , S or a direct bond, with the proviso that when R 1 is SO 2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styreneic-acrylonitrile polymer.
Claim 2
Dependent Claim
159 words
A moldable and compatable blend of 5 to 95 weight percent polycarbonate comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR10## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR11## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula ##STR12## wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R 1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO 2 , S or a direct bond, with the proviso that when R 1 is SO 2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styreneic-acrylonitrile polymer.
Claim 3
Dependent Claim
13 words
The blend of claim 1 wherein the styrenic polymer is an ABS polymer.
Claim 4
Dependent Claim
21 words
The blend of claim 2 wherein the ratio of the polymers is 25 to 75 to 75 to 25 weight ratio.
Claim 5
Dependent Claim
11 words
The blend of claim 1 wherein the styrenic polymer is styrene-acrylonitrile.
Claim 6
Dependent Claim
11 words
The blend of claim 1 wherein the styrenic polymer is α-methylstyrene-acrylonitrile.
Claim 7
Dependent Claim
18 words
The blend of claim 1 wherein the styrenic polymer comprises an α-methylstyrene-acrylonitrile copolymer blended with an ABS terpolymer.
Claim 8
Dependent Claim
11 words
The blend of claim 1 wherein the styrenic polymer is styrene-acrylonitrile-acrylate.
Claim 9
Dependent Claim
10 words
The blend of claim 7 wherein the acrylate is methylmethacrylate.
Claim 10
Dependent Claim
19 words
The blend of claim 1 wherein the styrenic polymer is a stryrene-acrylonitrile copolymer grafted onto an acrylate elastomeric backbone.
Claim 11
Dependent Claim
20 words
The blend of claim 1 wherein the styrenic polymer is a styrene-acrylonitrile copolymer grafted onto an ethylene-propylene-diene monomer (EPDM) elastomer.
Claim 12
Dependent Claim
18 words
The blend of claim 1 which also contains 0.5 to 12 wt go of a triaryl phosphate ester.
Claim 13
Dependent Claim
10 words
The blend of claim 1 which also contains a polyester.
Claim 14
Dependent Claim
11 words
The blend of claim 12 wherein the polyester is poly(ethylene terephthalate).
Claim 15
Dependent Claim
11 words
The blend of claim 12 wherein the polyester is poly(butylene terephthalate).
Claim 16
Dependent Claim
17 words
The blend of claim 1 which contains Bisphenol A polycarbonate of repeating units having the formula ##STR13##
Claim 17
Dependent Claim
10 words
The blend of claim 1 which also contains a polyarylate.
Claim 18
Dependent Claim
15 words
The blend of claim 16 wherein the polyarylate is based on Bisphenol A and iso/terephthalates.
Claim 19
Dependent Claim
10 words
The blend of claim 1 which also contains a poly(arylether).
Claim 20
Dependent Claim
19 words
The blend of claim 18 wherein the poly(arylether) is Bisphenol A polysulfone of repeating units having the formula ##STR14##
Claim 21
Dependent Claim
13 words
The blend of claim 1 wherein the blend also contains an aromatic poly(ester-carbonate).
Claim 22
Dependent Claim
13 words
The blend of claim 1 wherein the blend also contains a poly(ether imide).
Claim 23
Dependent Claim
13 words
A molded article made by the molding of the blend of claim 1.
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) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |