Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-04-28
1994-11-01
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 88, 525 93, 525934, 264126, C08L 2316, C08L 2314, C08L 3308
Patent
active
053608747
ABSTRACT:
A sintered film containing a copolymer and optionally other common additives is described. The film contains about 30 to 70 parts by weight of a propylene copolymer with a melt index MFI 230/2.16 of at least approximately 3 g./10 min. and about 70 to 30 parts by weight of an ethylene-ethyl acrylate copolymer with a melt index MFI 230/2.16 of at least approximately 3 g./10 min. and with a Vicat softening point of at least about 40. The ethylene-ethyl acrylate copolymer contains approximately 7 to 35 wt % of ethyl acrylate. This film exhibits advantageous properties, particularly a good Shore A hardness.
REFERENCES:
patent: 4031179 (1977-06-01), Tatzel et al.
patent: 4312918 (1982-01-01), Bostwick
patent: 4710544 (1987-12-01), Wolfe, Jr.
patent: 5272210 (1993-12-01), Galante
Bruder Axel
Wolff Roland
J. H. Benecke AG
Seidleck James J.
Warzel M. L.
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