Stretched article having pearly gloss and process for preparing

Details Stretched article having pearly gloss and process for preparing Stretched article having pearly gloss and process for preparing

1991-02-15

1992-01-28

Seccuro, Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525192, 2642101, 2642107, 2642106, 2642902, 5263481, C08L 2306, C08L 2312, C08L 4500, C08J 518, B29C 5502

Patent

active

050845195

ABSTRACT:
The present invention provides a stretched article having a pearly gloss and a total light transmission of 40% or less which is obtained by molding a composition comprising 100 parts by weight of a crystalline polypropylene, 0.5 to 30 parts by weight of a high-density polyethylene having a density of 0.94 or more and 5 to 50 parts by weight of a cyclopentadiene petroleum resin having a softening point (according to the ring and ball metyhod) of 160.degree. C. or more, and then stretching the resulting molded article; and a process for producing a stretched article having a pearly gloss which comprises the steps of melt-extruding the above-mentioned composition at on above the softening point of the petroleum resin, cooling the extruded composition to form an unstretched raw fabric, and then stretching the raw fabric 200% or more in at least one direction at a temperature which is lower than the crystalline melting point of the polypropylene and is equal to or below the softening point of the petroleum resin.

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