Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1984-12-27
1986-07-29
Buffalow, Edith
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
264291, 428516, 428910, 524274, 526308, 526282, 526274, C08L 2304
Patent
active
046031740
ABSTRACT:
A stretched polypropylene film having excellent see-through characteristics, which is prepared by stretching in at least one direction a polypropylene resin sheet containing 0.05 ppm to 10,000 ppm by weight of a 3-position branched .alpha.-olefin unit and/or a vinyl cycloalkane unit, each having at least 6 carbon atoms.
REFERENCES:
patent: 3773609 (1973-11-01), Haruta et al.
patent: 4166057 (1979-08-01), Takemori
patent: 4405772 (1983-09-01), Wong et al.
Fukui Yoshiharu
Ima Seiichiro
Kakugo Masahiro
Kimura Jun-ichi
Okada Tadayuki
Buffalow Edith
Sumitomo Chemical Company Limited
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