Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1995-08-11
1996-10-08
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524451, 524119, 525240, C08K 334
Patent
active
055631940
ABSTRACT:
A propylene resin composition comprising: a polypropylelne having specific physical properties, 25.about.40% by weight; a propylene-ethylene block copolymer, 25.about.45% by weight; an ethylene-propylene rubber, 5.about.15% by weight; an ethylene-.alpha.-olefin copolymer, 5-15% by weight; and a talc, 5-30% by weight; is superior in all of the following properties concurrently: rigidity, heat resistance, impact resistance, surface hardness, etc.; and is suited for use in machine parts such as automobile parts; electric and electronic parts; packaging materials, engineering plastic substitutes, etc.
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PCT publication WO91/0089 published Jan. 24, 1991-Mitsui Toatsu Chemicals, Inc.
Okumura Chiaki
Watanabe Kazuyuki
Hoke Veronica P.
Showa Denko K.K.
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