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US 5,849,822 AGranted
Thermoplastic resin composition superior in transparency and antistatic property
AssigneeTeijin Limited
InventorsNobuaki Kido, Shunichi Matsumura, Takashi Ito
Life of this patent
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Abstract
A thermoplastic resin composition having transparency and antistatic properties, comprising 100 parts by weight of a thermoplastic resin (A) having a refractive index of 1.52 to 1.61 and a haze of 40 or less, and 5 to 40 parts by weight of a polyetherester (B) which has a sulfonate group and a polyalkylene oxide group, and is substantially immiscible with the thermoplastic resin (A), the difference in refractive index between the thermoplastic resin (A) and the polyetherester (B) being 0.04 or less. The thermoplastic resin composition has a haze of 40% or less and a surface resistivity of 1.times.10.sup.10 to 1.times.10.sup.14 ohm/square.
Claims21
A thermoplastic resin composition having transparency and antistatic properties, comprising an admixture of:
- 100 parts by weight of a thermoplastic resin (A) having a refractive index of 1.52 to 1.61 and a haze of 40 or less, and
- 5 to 40 parts by weight of a polyether ester (B) which is substantially immiscible with the thermoplastic resin (A) and which is composed mainly of:
- (B1) an aromatic dicarboxvlic acid component not having sulfonic acid salt group,
- (B2) at least one compound component having a sulfonic acid salt group, selected from the group consisting of a dicarboxvlic acid compound component represented by the following formula (1) ##STR10## wherein Ar is a trivalent aromatic group having 6 to 20 carbon atoms, and M.sup.+ is a metal ion, a tetraalkylphosphonium ion or a tetraalkylammonium ion
- and a glycol compound component represented by the following formula (2) ##STR11## wherein R.sup.1 and R.sup.2 are each independently a bivalent alkylene group having 2 to 4 carbon atoms;
- m and n are each independently an integer of 1 to 20;
- Ar.sup.1 is a trivalent aromatic group having 6 to 20 carbon atoms;
- and M.sup.+ is a metal ion, a tetraalkylphosphonium ion or a tetraalkylammonium ion,
- (B3) a glycol component having 2 to 10 carbon atoms, and
- (B4) at least one polyalkylene oxide component having a number-average molecular weight of 200 to 50,000, selected from the group consisting of a poly(alkylene oxide) glycol component, a poly(alkylene oxide) glycol bis(carboxymethyl) ether component and a polyoxyalkylene glycol mono-2,3-dihydroxypropyl ether component, in which thermoplastic resin composition the difference in refractive index between the thermoplastic resin (A) and the polyether ester (B) is 0.04 or less and which thermoplastic resin composition has a haze of 40% or less and a surface resistivity of 1.times.10.sup.10 to 1.times.10.sup.14 ohm/square.
7 more elements
A thermoplastic resin composition having transparency and antistatic properties, comprising an admixture of:
- 100 parts by weight of a thermoplastic resin (A) having a refractive index of 1.52 to 1.61 and a haze of 40 or less, and
- 5 to 40 parts by weight of a polyether ester (B) which is substantially immiscible with the thermoplastic resin (A) and which is composed mainly of:
- (B1) an aromatic dicarboxylic acid component not having a sulfonic acid salt group,
- (B2) at least one compound component having a sulfonic acid salt group, selected from the group consisting of a dicarboxylic acid compound component represented by the following formula (1) ##STR12## wherein Ar is a trivalent aromatic group having 6 to 20 carbon atoms, and M.sup.+ is a metal ion, a tetraalkylphosphonium ion or a tetraalkylammonium ion, and a glycol compound component represented by the following formula (2) ##STR13## wherein R.sup.1 and R.sup.2 are each independently a bivalent alkylene group having 2 to 4 carbon atoms;
- m and n are each independently an integer of 1 to 20;
- Ar.sup.1 is a trivalent aromatic group having 6 to 20 carbon atoms;
- and M.sup.+ is a metal ion, a tetraalkylphosphonium ion or a tetraalkylammonium ion,
- (B3) a glycol component having 2 to 10 carbon atoms, and
- (B4) at least one polyalkylene oxide component having a number-average molecular weight of 200 to 50,000, selected from the group consisting of a poly(alkylene oxide) glycol component, a poly(alkylene oxide) glycol bis(carboxymethyl ether component and a polyoxyalkylene glycol mono-2,3-dihydroxypropyl ether component and 0.5 to 10 parts by weight of an ionic surfactant (C), in which the difference in refractive index between the thermoplastic resin (A) and the mixture of the polyether ester (B) and the ionic surfactant (C) in the compounded amounts is 0.04 or less and which thermoplastic resin composition has a haze 40% or less and a surface resistivity of 1.times.10.sup.10 to 1.times.10.sup.14 ohm/.quadrature..
6 more elements
A process for producing a thermoplastic polyester resin having transparency and antistatic properties, which comprises mixing:
- (A) 100 parts by weight of a thermoplastic resin having a refractive index of 1.52 to 1.61 and a haze of 40% or less, with
- (B) 5 to 40 parts by weight of a polyether ester which is substantially immiscible with the thermoplastic resin (A) and which is composed mainly of:
- (B1) an aromatic dicarboxylic acid component not having sulfonic acid salt group,
- (B2) at least one compound component having a sulfonic acid salt group, selected from the group consisting of a dicarboxylic acid compound component represented by the following formula (1) ##STR14## wherein Ar is a trivalent aromatic group having 6 to 20 carbon atoms, and M.sup.+ is a metal ion, a tetraalkylphosphonium ion or a tetraalkylammonium ion,
- and a glycol compound component represented by the following formula (2) ##STR15## wherein R.sup.1 and R.sup.2 are each independently a bivalent alkylene group having 2 to 4 carbon atoms;
- m and n are each independently an integer of 1 to 20;
- Ar.sup.1 is a trivalent aromatic group having 6 to 20 carbon atoms;
- and M.sup.+ is a metal ion, a tetraalkylphosphonium ion or a tetraalkylammonium ion,
- (B3) a glycol component having 2 to 10 carbon atoms, and
- (B4) at least one polyalkylene oxide component having a number-average molecular weight of 200 to 50,000, selected from the group consisting of a poly(alkylene oxide) glycol component, a poly(alkylene oxide) glycol bis(carboxymethyl) ether component and a polyoxyalkylene glycol mono-2,3-dihydroxypropyl ether component, and
- (C) 0.5 to 10 parts by weight of an ionic surfactant,
- and wherein the difference in refractive index between the thermoplastic resin (A), the mixture of the polyether ester (B) and the ionic surfactant (C) in the compounded amounts is 0.04 or less, and wherein the thermoplastic resin composition has a haze of 40% or less and a surface resistivity of 1.times.10.sup.1 to 1.times.10.sup.14 ohm/.quadrature..
9 more elements
Dependencies are inferred from the claim text.