Resin composition and resin molded object

Patent metadata

Field	Value
Publication number	US-9909005-B2
Application number	US-201314420562-A
Country	US
Kind code	B2
Filing date	Jul 18, 2013
Priority date	Aug 31, 2012
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A halogen-free type polycarbonate resin composition and a resin molded object having good flame retardant properties and physical properties that make them suitable for the use as manufactured products. The resin component includes a component A which is a polycarbonate resin, a component B including organic sulfonic acid or organic sulfonic acid metal salt, whose content is 0.05% or more and 2.0% or less by weight, a component C which is a drip inhibitor, whose content is 0.05% or more and 1.0% or less by weight, and a component D which is a silicone compound, whose content is 0.1% or more and 2.0% or less by weight. Among hydrogen atoms in the silicone compound and the proportion of hydrogen atoms in phenyl groups is 51% or more.

First claim

The invention claimed is:

1. A resin composition that consists of:
a component A which is a resin that is free of halogens;
a component B which is an organic sulfonic acid or an organic sulfonic acid metal salt, the content of the component B being 0.05% or more and 2.0% or less by weight of the composition;
a component C which is a drip inhibit or, the content of the component C being 0.05% or more and 1.0% or less by weight of the composition;
a component D which is a silicone compound; and
a component E which is talc,
wherein,
component A consists only of a polycarbonate resin or a mixture of polycarbonate resins,
each polycarbonate resin in Component A has an average molecular weight in polystyrene equivalent of 36000 or more and 58000 or less as may be obtained by GPC (Gel Permeation Chromatography) measurement using a chloroform solvent and with a polystyrene molecular weight standard substance as a reference,
among hydrogen atoms in component D, (a) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in methyl groups is 22% or more, or (b) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in hydrogen groups is 22% or more, or (c) a proportion of the hydrogen atoms in hydrogen groups is 22% or more and the proportion of the hydrogen atoms in methyl groups is 50% or more, and
the content of the component D is 0.1% or more by weight and 2.0% or less by weight of the composition.

2. The resin composition according to claim 1 , wherein, among hydrogen atoms in component D, a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in methyl groups in component D is 29% or more.

3. The resin composition according to claim 1 , wherein the component D is a polyorganosiloxane.

4. The resin composition according to claim 1 , wherein the component E which is talc has particles with an average median diameter of 4.6 μm or more and 6.0 μm or less.

5. The resin composition according to claim 1 , wherein the component B is a sulfonic acid of a high molecular polymer having an aromatic ring or a sulfonic acid metal salt of a high molecular polymer having an aromatic ring.

6. The resin composition according to claim 1 , wherein the component C is a polytetrafluoroethylene having fibril-forming abilities.

7. A resin composition that consists of:
a component A which is a resin that is free of halogens;
a component B which is an organic sulfonic acid or an organic sulfonic acid metal salt;
a component C which is a drip inhibitor; and
a component D which is a silicone compound,
wherein,
component A consists only of a polycarbonate resin or a mixture of polycarbonate resins,
each polycarbonate resin in Component A has an average molecular weight in polystyrene equivalent of 36000 or more and 58000 or less as may be obtained by GPC (Gel Permeation Chromatography) measurement using a chloroform solvent and with a polystyrene molecular weight standard substance as a reference, among hydrogen atoms in component D, (a) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in methyl groups is 22% or more, (b) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in hydrogen groups is 22% or more, or (c) a proportion of the hydrogen atoms in hydrogen groups is 22% or more and the proportion of the hydrogen atoms in methyl groups is 50% or more.

8. A resin molded object comprising a composition that consists of:
a component A which is a resin that is free of halogens;
a component B which is an organic sulfonic acid or an organic sulfonic acid metal salt, the content of the component B being 0.05% or more and 2.0% or less by weight of the composition;
a component C which is a drip inhibitor, the content of the component C being 0.05% or more and 1.0% or less by weight of the composition; and
a component D which is a silicone compound,
wherein,
component A consists only of a polycarbonate resin or a mixture of polycarbonate resins,
each polycarbonate resin in Component A has an average molecular weight in polystyrene equivalent of 36000 or more and 58000 or less as may be obtained by GPC (Gel Permeation Chromatography) measurement using a chloroform solvent and with a polystyrene molecular weight standard substance as a reference,

among hydrogen atoms in component D, (a) (a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in methyl groups is 22% or more, (b) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in hydrogen groups is 22% or more, or (c) a proportion of the hydrogen atoms in hydrogen groups is 22% or more and the proportion of the hydrogen atoms in methyl groups is 50% or more, and
the content of the component D is 0.1% or more and 2.0% or less by weight of the composition.

9. A resin composition that consists of:
a component A which is a polycarbonate resin that is free of halogens;
a component B which is an organic sulfonic acid or an organic sulfonic acid metal salt;
a component C which is a drip inhibitor;
a component D which is a silicone compound; and
a component E which is talc,
wherein,
component A consists only of a polycarbonate resin or a mixture of polycarbonate resins,
each polycarbonate resin in Component A has an average molecular weight in polystyrene equivalent of 36000 or more and 58000 or less as may be obtained by GPC (Gel Permeation Chromatography) measurement using a chloroform solvent and with a polystyrene molecular weight standard substance as a reference,
among hydrogen atoms in component D, (a) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in methyl groups is 22% or more, (b) a proportion of the hydrogen atoms in phenyl groups is 51% or more and a proportion of the hydrogen atoms in hydrogen groups is 22% or more, or (c) a proportion of the hydrogen atoms in hydrogen groups is 22% or more and the proportion of the hydrogen atoms in methyl groups is 50% or more.

Assignees

• Sony Corp

Inventors

• Yamada Atsushi
• Ueda Kenji
• Ohe Takahiro
• Inagaki Yasuhito

Classifications

• C08L69/00 Primary

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title

• C08K5/42

  Sulfonic acids; Derivatives thereof · CPC title

• C08L27/18

  Homopolymers or copolymers or tetrafluoroethene · CPC title

• C08L2201/02

  Flame or fire retardant/resistant · CPC title

• C08L83/04

  Polysiloxanes · CPC title