FLAME-RETARDANT RESIN COMPOSITION AND MOLDED RESIN OBJECT

• US 20180044506A1
• Filed: 03/08/2016
• Published: 02/15/2018
• Est. Priority Date: 03/10/2015
• Status: Active Grant

• Current Assignee: ZEON Corporation
• Original Assignee: ZEON Corporation
• Inventors: KATO, Ayako, MIYAZAWA, Shinsuke
• Granted Patent: US 10,669,398 B2
• Time in Patent Office: Days
• CPC Class Codes: C08G 2261/418 Ring opening metathesis polymerisation [ROMP]
• CPC Class Codes: C08G 2261/724 Hydrogenation
• CPC Class Codes: C08K 2201/019 the composition being defined by the absence of a certain additive
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C08K 5/02 Halogenated hydrocarbons C08K5/0091 takes precedence
• CPC Class Codes: C08K 5/3415 Five-membered rings
• CPC Class Codes: C08K 5/3417 condensed with carbocyclic rings
• CPC Class Codes: C08K 7/14 Glass
• CPC Class Codes: C08L 2201/02 Flame or fire retardant/resistant
• CPC Class Codes: C08L 25/18 Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
• CPC Class Codes: C08L 27/18 Homopolymers or copolymers or tetrafluoroethene
• CPC Class Codes: C08L 65/00 Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain C08L7/00 - C08L57/00, C08L61/00 take precedence; Compositions of derivatives of such polymers

Abstract

The present invention is a flame-retardant resin composition comprising a cycloolefin-based polymer and a halogen-containing flame retardant selected from a group consisting of a halogenated bisimide compound and a halogen-containing styrene-based resin, and may be comprising a halogen-active species scavenger, wherein a content of the halogen-containing flame retardant is 10 to 80 parts by weight based on 100 parts by weight of the cycloolefin-based polymer, and a content of the halogen-active species scavenger is less than 25 parts by weight based on 100 parts by weight of the halogen-containing flame retardant, and a resin formed article. One aspect of the invention provides a flame-retardant resin composition having excellent flame retardance, low dielectric constant and low dielectric loss tangent, and a resin formed article produced by forming this flame-retardant resin composition.

Claims

1. A flame-retardant resin composition comprising a cycloolefin-based polymer and a halogen-containing flame retardant selected from a group consisting of a halogenated bisimide compound and a halogen-containing styrene-based resin, and may be comprising a halogen-active species scavenger,

wherein a content of the halogen-containing flame retardant is 10 to 80 parts by weight based on 100 parts by weight of the cycloolefin-based polymer, and

a content of the halogen-active species scavenger is less than 25 parts by weight based on 100 parts by weight of the halogen-containing flame retardant.

2. The flame-retardant resin composition according to claim 1, wherein the halogen-active species scavenger is an inorganic halogen-active species scavenger.

3. The flame-retardant resin composition according to claim 1, wherein a dielectric constant is 3.0 or lower, and a dielectric loss tangent is lower than 5.0×

10<sup>−

3</sup>, at a frequency of 1 GHz.

4. The flame-retardant resin composition according to claim 1, wherein a dielectric constant is 3.0 or lower, and a dielectric loss tangent is lower than 1.0×

10<sup>−

3</sup>, at a frequency of 1 GHz.

5. A resin formed article produced by forming the flame-retardant resin composition according to claim 1.