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US 2007/0179234 A1Published application
Flame retardant fiber reinforced composition with improved flow
AssigneeGeneral Electric Company
InventorsKim Choate, Robert Gallucci, Nazan Gunduz, Tsutomu Kinoshita, Tatsuya Uchiyama
Life of this patent
Estimating the term…
Abstract
A composition comprising at least one high Tg amorphous resin with a fibrous filler shows improved melt processability. Addition of a sulfonate salt to the compositions gives increased melt flow as well as enhanced flame retardancy in a composition which is substantially free of bromine and chlorine.
Claims47
A thermoplastic resin composition comprising:
- (a) a polyimide, a polysulfone or mixture thereof;
- (b) about 10% to about 40% by weight of the entire composition of a fibrous reinforcement selected from the group consisting of:
- fiber glass, carbon fiber and ceramic fiber;
- and
- (c) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition, of a sulfonate salt,
- wherein the composition has a melt flow of from 20 to 60 millimeters/10 minutes as measured by ASTM Test Method D 1238 at 337 degrees C. using a die 8 millimeters long and 9.5 millimeters with an orifice of 2 millimeters with a load of 6.7 kilograms.
3 more elements
A thermoplastic resin composition comprising:
- (a) a polyetherimide, a polysulfone or mixture thereof;
- (b) fiber glass;
- (c) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition of a sulfonate salt selected from the group consisting of perfluorobutyl potassium sulfonate, potassium sulfone sulfonate and sodium dodecylbenzene sulfonate;
- and
- (d) an alkyl ester of a carboxylic acid;
- wherein said composition has a melt flow of from 20 to 60 milliliters/10 minutes as measured by ASTM Test Method D1238 at 337 degrees C. using a die 8 millimeters long and 9.5 millimeters wide with an orifice of 2 millimeters with a load of 6.7 kilograms.
3 more elements
A thermoplastic resin composition comprising:
- (e) a polyimide, a polysulfone or mixture thereof;
- (f) an amorphous polycarbonate, polyestercarbonate or polyarylate polymer, or mixture thereof, comprising recurring units of the formula
- wherein Ar is a divalent aromatic residue of a dicarboxylic acid or mixture of dicarboxylic acids and Ar′ is a divalent aromatic residue of a dihydroxy-substituted aromatic compound or mixture of dihydroxy-substituted aromatic compounds and wherein, based on mole percent, x and y each have a value of between 0 and 100 percent and the total of x and y is 100 percent;
- (g) a fibrous reinforcement selected from the group consisting of:
- fiber glass, carbon fiber and ceramic fiber;
- and
- (h) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition, of a sulfonate salt.
4 more elements
A thermoplastic resin composition comprising:
- (e) a polyetherimide, a polysulfone or mixture thereof;
- (f) an amorphous polyestercarbonate comprising recurring units of the formula
- wherein Ar is a divalent aromatic residue of a dicarboxylic acid or mixture of dicarboxylic acids and Ar′ is a divalent aromatic residue of a dihydroxy-substituted aromatic compound or mixture of dihydroxy-substituted aromatic compounds and wherein, based on mole percent, x and y each have a value of between 1 and 99 percent and the total of x and y is 100 percent;
- (g) fiber glass;
- (h) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition of a sulfonate salt selected from the group consisting of perfluorobutyl potassium sulfonate, potassium sulfone sulfonate and sodium dodecylbenzene sulfonate;
- and
- (i) an alkyl ester of a carboxylic acid;
- wherein said composition has a melt flow of from 20 to 60 milliliters/10 minutes as measured by ASTM Test Method D1238 at 337 degrees C. using a die 8 millimeters long and 9.5 millimeters wide with an orifice of 2 millimeters with a load of 6.7 kilograms.
5 more elements
A thermoplastic resin composition comprising:
- (a) a heat resistant polymer selected from the group consisting of a polyimide, a polysulfone or a mixture thereof;
- (b) about 10% to about 40% by weight of the entire composition of a fibrous reinforcement selected from the group consisting of:
- fiber glass, carbon fiber and ceramic fiber;
- and
- (c) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition, of a sulfonate salt,
- wherein the composition has a melt flow of from 20 to 60 millimeters/10 minutes as measured by ASTM Test Method D 1238 at 337 degrees C. using a die 8 millimeters long and 9.5 millimeters wide with an orifice of 2 millimeters with a load of 6.7 kilograms.
3 more elements
A thermoplastic resin composition comprising:
- (a) a heat resistant polymer selected from the group consisting of a polyimide, a polysulfone or a mixture thereof;
- (b) about 10% to about 40% by weight of the entire composition of a fibrous reinforcement selected from the group consisting of:
- fiber glass, carbon fiber and ceramic fiber;
- and,
- (c) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition, of a sulfonate salt;
- wherein the melt flow of the thermoplastic resin composition comprising (a), (b) and (c) is higher than the melt flow of an identical composition comprising (a) and (b) without ingredient (c).
3 more elements
A thermoplastic resin composition according to claim 71 wherein the melt flow is from 20 to 60 milliliters/10 minutes as measured by ASTM Test Method D1238 at 337 degrees C. using a die 8 millimeters long and 9.5 millimeters wide with an orifice of 2 millimeters with a load of 6.7 kilograms.
A thermoplastic resin composition consisting essentially of:
- (a) a polyimide, a polysulfone or mixture thereof;
- (b) a fibrous reinforcement selected from the group consisting of:
- fiber glass, carbon fiber and ceramic fiber;
- and
- (c) about 0.05 to about 0.15 weight percent, with respect to the total weight of the composition, of a sulfonate salt.
2 more elements
Dependencies are inferred from the claim text.