Title:
POLYPROPYLENE-BASED RESIN COMPOSITION AND FOAM
Document Type and Number:
Japanese Patent JP3479137
Kind Code:
B2
Abstract:
PURPOSE: To obtain a composition having good mechanical characteristics, heat resistance and flexibility, capable of providing a polymer having high elongation, excellent in expansion molding and utilizable for interior of automobile, etc., packing of electrical equipments, etc., and building, etc.
CONSTITUTION: This polypropylene-based resin composition comprises (A) 50-90 pts.wt. polypropylene having high melt tension in which melt tension(MT) at 230°C and melt flow index(MFR) satisfy the relationship expressed by the formula long MT>-1.16 × log MFR +1.2 and (B) 10 pts.wt. to <50 pts.wt. cross- linkable resin composition, and the component B contains (a) an ethylene-based multicomponent copolymer composed of ethylene, a free radical-polymerizable acid anhydride and other comonomer and containing 0.1-20wt.% of a unit derived from the free-radical-polymerizable acid anhydride and 5-40wt.% of an unit derived from other comonomer, (b) a polyhydric alcohol compound having at least two hydroxyl groups in the molecule and (c) a reaction accelerator. This foam is obtained by using the composition.
Inventors:
Yasuhiro Mikawa
Etsuo Maki
Minoru Suzuki
Hirotaka Tagoshi
Etsuo Maki
Minoru Suzuki
Hirotaka Tagoshi
Application Number:
JP32597994A
Publication Date:
December 15, 2003
Filing Date:
December 27, 1994
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
C08J9/00; B29C48/305; C08K5/05; C08K5/053; C08K5/098; C08L23/00; C08L23/08; C08L23/10; C08L23/26; C08L71/00; C08L71/02; B29K105/04; (IPC1-7): C08L23/26; C08J9/00; C08K5/098
Domestic Patent References:
| JP8143743A | ||||
| JP827350A | ||||
| JP7241947A | ||||
| JP770402A | ||||
| JP6166777A | ||||
| JP687988A | ||||
| JP657062A | ||||
| JP2298536A | ||||
| JP495150A | ||||
| JP5506875A |
Attorney, Agent or Firm:
Minoru Nakamura (10 outside)