Injection-molded product

Details Injection-molded product Injection-molded product

1990-05-25

1992-06-23

Seccuro, Carman J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

525179, 525211, 525240, 524427, 524445, 524451, 524528, C08J 518, B60R 1903, C08L 2326, C08L 2312

Patent

active

051241935

ABSTRACT:
An injection-molded product comprising: component A: 45 to 70% by weight of a propylene polymer 2.16 kg) of 10 to 100 g/10 min and an ethylene content of 0 to 15% by weight; and component B: 30 to 55% by weight of an ethylene/propylene copolymer-based rubber having a melt flow rate (at 230.degree. C. under a load of 5 kg) of 0.5 to 20 g/10 min and a propylene content of 20 to 40% by weight; the ratio MFR.sub.A /MFR.sub.B of the melt flow rate (MFR.sub.A) of component A to the melt flow rate (MFR.sub.B) of component B being 0.5 to 50, and the molded product having such physical properties as expressed in terms of a modulus in flexure of 2,000 to 5,000 kg/cm.sup.2, as determined according to JIS-K7203 and a coefficient of linear expansion of 10 .times.10.sup.-5 /.degree. C. or below, as determined according to ASTM-D696, and having an average thickness of 2 to 7 mm.

REFERENCES:
patent: 4634740 (1987-01-01), Fujita et al.
patent: 4748206 (1988-05-01), Nogiwa et al.
patent: 4812526 (1989-03-01), Rifi

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