# US 4,393,190 A · Carbonate copolymers prepared from imide reactants

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- Number: US 4,393,190 A
- Document ID: US4393190A
- Status: Granted
- Kind: A
- Application number: 06/303,998
- Filed: 1981-09-21
- Granted: 1983-07-12
- Earliest claimed: 1981-09-21
- Assignees: General Electric Company
- Inventors: John A. Tyrell; Gary L. Freimiller
- Web page: https://patentgrep.com/patent/US4393190A

## CPC

- C08G 64/12: containing nitrogen
- C08G 64/14: containing a chain-terminating or -crosslinking agent
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

Novel carbonate polymers comprised of the reaction product of a dihydric phenol, a carbonate precursor, and at least one imide selected from the group of compounds represented by the formulae ##STR1##

## Claims

### Claim 1

An endcapped polymer composition comprised of the reaction product of:
(i) a dihydric phenol;
(ii) a carbonate precursor; and
(iii) at least one imide selected from the group consisting of imides in chain terminating effective amount represented by the general formula ##STR16## and imides in quantities of from about 1 to about 85 mole percent based on the amount of dihydric phenol represented by the general formula ##STR17## wherein each R is independently selected from hydrogen, alkyl radicals, alkoxy radicals, and halogen radicals, and wherein each R.sup.1 is independently selected from hydrogen, alkyl radicals, alkoxy radicals, and halogen radicals with the proviso that at least one imide compound of the first formula is employed.

### Claim 2 (depends on 1)

The composition of claim 1 wherein said carbonate precursor is a carbonyl halide.

### Claim 3 (depends on 2)

The composition of claim 2 wherein said carbonyl halide is carbonyl chloride.

### Claim 4 (depends on 2)

The composition of claim 2 wherein said imide is an imide represented by the general formula ##STR18##

### Claim 5 (depends on 4)

The composition of claim 4 wherein said dihydric phenol is bisphenol A.

### Claim 6 (depends on 5)

The composition of claim 5 wherein each R is hydrogen.

### Claim 7 (depends on 2)

The composition of claim 2 wherein said imide is an imide represented by the general formula ##STR19##

### Claim 8 (depends on 7)

The composition of claim 7 wherein said dihydric phenol is bisphenol A.

### Claim 9 (depends on 8)

The composition of claim 8 wherein each R.sup.1 is hydrogen.

### Claim 10 (depends on 2)

The composition of claim 2 wherein (iii) is a mixture of at least one imide represented by the general formula ##STR20## and at least one imide represented by the general formula ##STR21##

### Claim 11

A copolyester-carbonate polymer composition comprised of the reaction product of:
(i) a dihydric phenol;
(ii) a difunctional aromatic dicarboxylic acid or its reactive derivative;
(iii) a carbonate precursor; and
(iv) at least one imide selected from the group of imides in chain terminating effective amount represented by the general formula ##STR22## wherein each R is independently selected from hydrogen, alkyl radicals, halogen radicals and alkoxy radicals, and each R.sup.1 is independently selected from hydrogen, alkyl radicals, halogen radicals and alkoxy radicals; the molar ratio of (i) plus the compound of the second formula (iv) to (ii) is in the range of 1.00:0.05 to about 1.00:0.70.

### Claim 12 (depends on 12)

The composition of claim 12 wherein said carbonate precursor is a carbonyl halide.

### Claim 13 (depends on 12)

The composition of claim 12 wherein said carbonyl halide is carbonyl chloride.

### Claim 14 (depends on 13)

The composition of claim 13 wherein said difunctional aromatic carboxylic acid is selected from isophthalic acid, terephthalic acid, and mixtures thereof.

### Claim 15 (depends on 13)

The composition of claim 13 wherein said reactive derivative of said difunctional aromatic carboxylic acid is selected from isophthaloyl halide, terephthaloyl halide, and mixtures thereof.

### Claim 16 (depends on 14)

The composition of claim 14 wherein said dihydric phenol is bisphenol A.

### Claim 17 (depends on 15)

The composition of claim 15 wherein said dihydric phenol is bisphenol A.

### Claim 18 (depends on 12)

The composition of claim 12 wherein said imide is represented by the general formula ##STR23##

### Claim 19 (depends on 12)

The composition of claim 12 wherein said imide is represented by the general formula ##STR24##

### Claim 20 (depends on 5)

The composition of claim 5 wherein each R is hydrogen.

### Claim 21 (depends on 18)

The composition of claim 18 wherein each R is hydrogen.

### Claim 22 (depends on 19)

The composition of claim 19 wherein each R.sup.1 is hydrogen.