Title:
【発明の名称】難燃性ポリプロピレン組成物
Document Type and Number:
Japanese Patent JP2002500248
Kind Code:
A
Abstract:
A fire retarding polypropylene composition comprising a copolymer of polypropylene and an ethylene/propylene rubber, and at least about 50% by weight but not greater than 60% by weight of a magnesium hydroxide coated with an anionic surface active agent, the magnesium hydroxide having (i) a strain in the <101> direction of not more than 3.0x10-3, (ii) a crystallite size in the <101> direction of more than 800 Å, and (iii) a specific surface area, determined by the BET method, of less than 20 mg2/g. The composition can be used in a fire retarding semiconductor apparatus which passes the FMRC Clean Room Materials Flammability Test Protocol.
Inventors:
Jerry, Wagner
Application Number:
JP2000527405A
Publication Date:
January 08, 2002
Filing Date:
January 08, 1999
Export Citation:
Assignee:
Compression, Polymers, Group
International Classes:
C08L23/10; C08K3/22; C08K9/04; C08L23/16; H01L21/02; (IPC1-7): C08L23/10; C08K3/22; C08K9/04; C08L23/16; H01L21/02
Attorney, Agent or Firm:
Kazuo Sato (3 others)