Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-10-20
1981-09-22
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
428336, 428339, 428412, 428483, 428516, 4284761, 525247, 5263481, 5263482, C08F29708
Patent
active
042911400
ABSTRACT:
A new propylene copolymer comprises a propylene homopolymer block and a terpolymeric random copolymer block of propylene, ethylene, and hexene-1 and is further characterized in that: (a) the proportion therein of the propylene homopolymer block is 97 to 80 percent by weight; (b) the terpolymeric random copolymer block has been so copolymerized that the contents therein of the propylene, ethylene, and hexene-1 based on their respective monomers are 80 to 98 percent, 5 to 1 percent, and 15 to 1 percent, respectively, all percentages being by weight; and (c) the intrinsic viscosity thereof in a decalin solution at 135.degree. C. is 0.3 to 15 dl/g.
REFERENCES:
patent: 3530107 (1970-09-01), Yoshiora et al.
Fujii Masaki
Hattori Satoru
Miyabayashi Mitsutaka
Todaka Hironori
Adams Bruce L.
Burns Robert E.
Levin Stanford M.
Lobato Emmanuel J.
Mitsubishi Petrochemical Co. Ltd.
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