Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1991-09-03
1993-06-15
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524505, C08K 334
Patent
active
052199134
ABSTRACT:
The polypropylene-based resin composition of the invention consists basically of (a) a polypropylene resin or a block copolymer of propylene and ethylene of specified ethylene content specified in terms of the melt index and the isotacticity relative to the isotactic pentad of the propylene moiety and (b) a talc powder specified in terms of the average particle diameter and the average aspect ratio of particles. The resin composition has good blow-moldability and is capable of giving molded articles having excellent mechanical strengths and dimensional accuracy to be useful, for example, as a material of automobile bumper beams. The performance of the resin composition can be further improved when the composition is a ternary composition by partially replacing the component (a) with (a') a high-density polyethylene specified in terms of the melt index and a special parameter derived from the viscosity measurement or when the composition is a quaternary composition consisting of the components (a), (a') and (b) and an additional component (c) which is a rubbery elastomer, e.g., EPR, specified in terms of the complex viscosity.
REFERENCES:
patent: 4997720 (1991-03-01), Bourbonais et al.
patent: 5001182 (1991-03-01), Maruya et al.
patent: 5039525 (1991-08-01), Tamashima et al.
patent: 5082889 (1992-01-01), Kuizumi et al.
Fukuda Takumasa
Sugawara Minoru
Tomomatsu Ryuzo
Guarriello John J.
Idemitsu Petrochemical Company Ltd.
Michl Paul R.
LandOfFree
Polypropylene-based resin composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polypropylene-based resin composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polypropylene-based resin composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1043406