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US 6,143,858 AGranted
Polyestercarbonate comprising residues of branched diacids
AssigneeGeneral Electric Company
InventorsDavid Paul Mobley, Mohan Amaratunga, Gary Charles Davis, Peter David Phelps
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Abstract
This invention relates to polyestercarbonates comprising residues of at least one branched aliphatic dicarboxylic acid, and methods for preparation of polyestercarbonates comprising residues of at least one branched aliphatic dicarboxylic acid. This invention further relates to articles and methods of making articles from the polyestercarbonates.
Claims20
A polyestercarbonate comprising
- a) carbonate structural units corresponding to structure I:
- ##STR18## where R.sub.1 is independently selected from the group consisting of halogen, hydrogen, monovalent hydrocarbon, monovalent hydrocarbonoxy radicals,
- R.sub.2 is independently selected from the group consisting of halogen, hydrogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- W is selected from the group consisting of divalent hydrocarbon radicals,
- --S--, --S--S--, --O--, ##STR19## each n is independently selected from integers having a value of from 0 to 4 inclusive;
- and
- b is zero or one;
- the polyestercarbonate further comprising
- b) residues of a branched dicarboxylic acid of structure V or its derivatives, the branched dicarboxylic acid having two carboxylic acid groups and a side aliphatic chain ##STR20## where the dicarboxylic acid has from about 10 to about 40 carbon atoms;
- c is an integer from 0 to about 36;
- d is an integer from 0 to about 36;
- and
- e is an integer from 0 to about 36
- where the sum of c, d, and e is at least 6.
11 more elements
A polyestercarbonate comprising
- a) carbonate structural units corresponding to structure I:
- ##STR24## where R.sub.1 is independently selected from the group consisting of halogen, hydrogen, monovalent hydrocarbon, monovalent hydrocarbonoxy radicals,
- R.sub.2 is independently selected from the group consisting of halogen, hydrogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- W is selected from the group consisting of divalent hydrocarbon radicals,
- --S--, --S--S--, --O--, ##STR25## each n is independently selected from integers having a value of from 0 to 4 inclusive;
- and
- b is zero or one;
- the polyestercarbonate further comprising
- b) residues of branched dicarboxylic acids selected from the group consisting of
- 1) a dicarboxylic acids of structure (VI) ##STR26## 2) a dicarboxylic acids of structure (VII);
- and ##STR27## 3) dicarboxylic acids of structure (VI) and (VII).
8 more elements
A polyestercarbonate comprising
- a) residues of bisphenol A;
- and
- b) residues of branched dicarboxylic acids selected from the group consisting of
- 1) a dicarboxylic acids of structure (VI) ##STR28## 2) a dicarboxylic acids of structure (VII);
- and ##STR29## 3) dicarboxylic acids of structure (VII) and (VII).
2 more elements
A method of preparing a polyestercarbonate comprising
- reacting interfacially a dihydric phenol, a carbonate precursor, and a branched aliphatic dicarboxylic acid having from 10 to about 40 carbon atoms, where the branched aliphatic dicarboxylic acid is present at about 0.5 to about 20 mole % based on the dihydric phenol reactant content and wherein the initial pH is from about 8 to about 9 for about 40 to about 95 of the carbonate precursor addition time period and is then raised to a final pH of from about 10 to about 12 for the remainder of the carbonate precursor time period.
A polyestercarbonate comprising:
- (I) structural units selected from the group consisting of:
- 1) carbonate structural units corresponding to:
- ##STR32## where R.sub.3, R.sub.4 and R.sub.6 independently represent C.sub.1 -C.sub.6 alkyl,
- R.sub.5 is H or C.sub.1 -C.sub.3 alkyl and n is 0,1 or 2,
- R.sub.7 is H or C.sub.1 -C.sub.5 alkyl, and
- 2) carbonate structural units corresponding to:
- ##STR33## where R.sub.8, R.sub.9, R.sub.12 and R.sub.13 are independently C.sub.1 -C.sub.6 alkyl,
- R.sub.10 and R.sub.11 are independently H or C.sub.1 -C.sub.5 alkyl,
- each R.sub.14 is independently selected from the group consisting of H and C.sub.1 -C.sub.3 alkyl and each n is independently selected from the group consisting of 0, 1 and 2;
- 3) carbonate structural units corresponding to ##STR34## 4) carbonate structural units corresponding to structure (II) and (III);
- 5) carbonate structural units corresponding to structures (III) and (IV);
- and
- 6) carbonate structural units corresponding to structures (II) and (IV);
- the polyestercarbonate further comprising:
- (II) residues of branched dicarboxylic acids selected from the group consisting of:
- 1) a dicarboxylic acids of structure (VI) ##STR35## 2) dicarboxylic acids of structure (VII);
- and ##STR36## 3) dicarboxylic acids of structure (VI) and (VII).
14 more elements
A polyestercarbonate comprising:
- (I) structural units selected from the group consisting of:
- 1) carbonate structural units corresponding to:
- ##STR37## where R.sub.3, R.sub.4 and R.sub.6 independently represent C.sub.1 -C.sub.6 alkyl,
- R.sub.5 is H or C.sub.1 -C.sub.3 alkyl and n is 0,1 or 2,
- R.sub.7 is H or C.sub.1 -C.sub.5 alkyl, and
- 2) carbonate structural units corresponding to:
- ##STR38## where R.sub.8, R.sub.9, R.sub.12 and R.sub.13 are independently C.sub.1 -C.sub.6 alkyl,
- R.sub.10 and R.sub.11 are independently H or C.sub.1 -C.sub.5 alkyl,
- each R.sub.14 is independently selected from the group consisting of H and C.sub.1 -C.sub.3 alkyl and each n is independently selected from the group consisting of 0, 1 and 2;
- 3) carbonate structural units corresponding to ##STR39## 4) carbonate structural units corresponding to structure (II) and (III);
- 5) carbonate structural units corresponding to structures (III) and (IV);
- and
- 6) carbonate structural units corresponding to structures (II) and (IV);
- the polyestercarbonate further comprising:
- (II) residues of a branched dicarboxylic acid of structure V or its derivatives, the branched dicarboxylic acid having two carboxylic acid groups and a side aliphatic chain ##STR40## where the dicarboxylic acid has from about 10 to about 40 carbon atoms;
- c is an integer from 0 to about 36;
- d is an integer from 0 to about 36;
- and
- e is an integer from 0 to about 36
- where the sum of c, d, and e is at least 6.
17 more elements
Dependencies are inferred from the claim text.