Opaque and pearlescent, laminated and stretched products, and method for making them
AssigneeChisso Corporation
InventorsTadao Ishibashi, Kazuhiro Yamada
Life of this patent
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Abstract
An opaque and pearlescent, laminated and stretched product comprises a layer (A) and a layer (B) overlaid on and laminated by melt-adhesion to at least one side of the layer (A). The layer (A) forms a uniform layer comprising 97 to 70% by weight of a crystalline polypropylene and 3 to 30% by weight of a cyclopentadiene type petroleum resin having a softening point of 160.degree. C. or higher and stretched in at least one direction. The layer (B) comprising a crystalline polypropylene whose crystalline melting point is higher or lower than that of the crystalline polypropylene forming the layer (A) by less than 10.degree. C.
Claims5
An opaque and pearlescent, laminated and stretched product comprising a layer (A) and a layer (B) overlaid on and laminated by melt-adhesion to at least one side of said layer (A), said layer (A) forming a uniform layer comprising 97 to 70% by weight of a crystalline polypropylene and 3 to 30% by weight of a cyclopentadiene derived petroleum resin having a softening point of 160.degree. C. or higher and stretched in at least one direction, and said layer (B) comprising a crystalline polypropylene whose crystalline melting point is higher or lower than that of the crystalline polypropylene used for said layer (A) by less than 10.degree. C.
Dependencies are inferred from the claim text.