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US4469860A
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Aromatic polycarbonate resin end capped with hydroxy arylene sulfonate
Assignee: General Electric Co
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Filing: 1981-09-28
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Granted: 1984-09-04
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Expires: 2001-09-28
Abstract
Abstract Non-Newtonian flow characteristics are achieved by partially end-capping a polycarbonate with a sulfonated compound. The novel polymers are used in blow molding applications.
Inventors
- 👤 Niles R. Rosenquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:21
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/04; C08G64/06; C08G64/08; C08G64/081; C08G64/14
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
69 words
A composition comprising an endcapped aromatic carbonate polymer resin partially end-capped with an essentially non-emulsion making and non-Newtonian rheology making quantity of moiety derived from a compund of the formula ##STR9## wherein ##STR10## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.
Claim 2
Dependent Claim
69 words
A composition comprising an endcapped aromatic carbonate polymer resin partially end-capped with an essentially non-emulsion making and non-Newtonian rheology making quantity of moiety derived from a compund of the formula ##STR9## wherein ##STR10## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.
Claim 3
Dependent Claim
9 words
A composition in accordance with claim 1 wherein ##STR11##
Claim 4
Dependent Claim
14 words
A composition in accordance with claim 2 wherein R is an alkali metal cation.
Claim 5
Dependent Claim
13 words
A composition in accordance with claim 3 wherein R is sodium or potassium.
Claim 6
Dependent Claim
15 words
A composition in accordance with claim 1 wherein the aromatic carbonate polymer resin is non-branched.
Claim 7
Dependent Claim
17 words
A composition in accordance with claim 5 wherein the aromatic carbonate polymer resin is derived from bisphenol-A.
Claim 8
Dependent Claim
89 words
An endcapped aromatic carbonate polymer resin prepared from a process comprising contacting at a pH greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR12## wherein ##STR13## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.
Claim 9
Dependent Claim
89 words
An endcapped aromatic carbonate polymer resin prepared from a process comprising contacting at a pH greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR12## wherein ##STR13## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.
Claim 10
Dependent Claim
9 words
A resin in accordance with claim 4 wherein ##STR14##
Claim 11
Dependent Claim
14 words
A resin in accordance with claim 8 wherein R is an alkali metal cation.
Claim 12
Dependent Claim
13 words
A resin in accordance with claim 9 wherein R is sodium or potassium.
Claim 13
Dependent Claim
15 words
A polymer in accordance with claim 7 wherein the aromatic carbonate polymer resin is non-branched.
Claim 14
Dependent Claim
19 words
A polymer resin in accordance with claim 7 wherein the process pH is from about 12 to about 13.
Claim 15
Dependent Claim
14 words
A polymer resin in accordance with claim 11 wherein the dihydric phenol is bisphenol-A.
Claim 16
Dependent Claim
29 words
A polymer resin in accordance with claim 18 wherein about 1 to about 7 mol percent of the total chain stopper present is a compound of the formula ##STR15##
Claim 17
Dependent Claim
91 words
A process for preparing an end-capped aromatic carbonate polymer resin which comprises contacting at a pH of greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR16## wherein ##STR17## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.
Claim 18
Dependent Claim
91 words
A process for preparing an end-capped aromatic carbonate polymer resin which comprises contacting at a pH of greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR16## wherein ##STR17## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.
Claim 19
Dependent Claim
9 words
A process in accordance with claim 15 wherein ##STR18##
Claim 20
Dependent Claim
14 words
A process in accordance with claim 15 wherein the phenolic chain stopper is phenol.
Claim 21
Dependent Claim
14 words
A process in accordance with claim 17 wherein R is an alkali metal cation.
Claim 22
Dependent Claim
13 words
A process in accordance with claim 18 wherein R is sodium or potassium.
Claim 23
Dependent Claim
15 words
A process in accordance with claim 15 wherein the aromatic carbonate polymer resin is non-branched.
Claim 24
Dependent Claim
17 words
A process in accordance with claim 15 wherein the pH is from about 12 to about 13.
Claim 25
Dependent Claim
13 words
A process in accordance with claim 20 wherein the dihydric phenol is bisphenol-A.
Claim 26
Dependent Claim
28 words
A process in accordance with claim 22 wherein about 1 to about 7 mol percent of the total chain stopper present is a compound of the formula ##STR19##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |