Cover pad for air bag device

Details Cover pad for air bag device Cover pad for air bag device

1995-04-17

1997-06-24

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428 43, 428156, 428134, 428163, 5253317, 5253319, 5253331, 5253333, 2807283, B60R 2116

Patent

active

056415540

ABSTRACT:
A cover pad for an air bag device, a main body of which is molded into a single layer using a resin/elastomer blend. The resin/elastomer blend is made by blending PP with an elastomer in a ratio ranging from 60/40 to 40/60 by weight. The elastomer is made by blending an EPM with a styrene-containing thermoplastic elastomer in a ratio ranging from 80/20 to 20/80 by weight. In addition, copolymerization of the EPM produces a propylene content ranging from 21 to 40 mol %; 3 mol %.ltoreq.P-P.ltoreq. 12 mol %; and 35 mol %.ltoreq.E-P.ltoreq.50 mol % (where P-P is the dyad chain configuration (.sup.13 C-NMR) of the propylene-propylene bond; and E-P is the dyad chain configuration (.sup.13 C-NMR) of the ethylene-propylene bond).

REFERENCES:
patent: 5110647 (1992-05-01), Sawada et al.
patent: 5158322 (1992-10-01), Sun
patent: 5376461 (1994-12-01), Shiraki et al.

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