Abstract: A packaging box, for a golf ball, is formed by folding a packaging sheet comprising a decomposable laminate material consisting of a polylactic acid-containing polymer film and a sheet of paper laminated with the polylactic acid-containing polymer film. A portion corresponding to a window is cut out from the paper, and the window is covered with the polylactic acid-containing polymer film laminated on the paper. The window is formed straddlingly on two or three planes such that the polylactic acid-containing polymer film covering the window is bent perpendicularly at a boundary between the planes adjacent to each other. A raised portion is formed on the packaging sheet.

Abstract: A packaging box, for a golf ball, is formed by folding a packaging sheet comprising a decomposable laminate material consisting of a polylactic acid-containing polymer film and a sheet of paper laminated with the polylactic acid-containing polymer film. A portion corresponding to a window is cut out from the paper, and the window is covered with the polylactic acid-containing polymer film laminated on the paper. The window is formed straddlingly on two or three planes such that the polylactic acid-containing polymer film covering the window is bent perpendicularly at a boundary between the planes adjacent to each other. A raised portion is formed on the packaging sheet.

Abstract: A polyamide resin-metal laminate comprising a metal substrate having a heat-treated epoxy resin coating layer on its surface and a polyamide resin laminated on the coating layer of the substrate, said coating layer having the following surface analytical spectrum values as measured by electron spectroscopy for chemical analysis (ESCA method):(1) Relative elemental content of carbon element (C.sub.1s spectrum): at least 50 atomic %,(2) Relative contents based on the total content of C.dbd.O, C--O, C.dbd.C--C.dbd.C, CH and C--C functional groups of C.sub.1s spectrum, as determined by the respective waveform analyses: C.dbd.O group: at least 4.0 atomic %, and C--O group: at most 25 atomic %.

Abstract: An aluminum laminate sheet for deep-drawing, which comprises an aluminum sheet (1) and a synthetic resin film (2) laminated on at least one side of the aluminum sheet, said resin film having a dynamic elastic modulus of from 1.0.times.10.sup.8 to 1.5.times.10.sup.10 dyne/cm.sup.2 at 20.degree. C. and a solubility parameter of at least 10.0.

Abstract: A heat shrinkable polyvinyl chloride film which shrinks more than 60% in one direction or more than 80% as an area shrinkage is prepared by stretching a film comprising 5 to 20 wt. parts of a vinyl chloride-vinyl acetate type copolymer having a vinyl acetate content of 10 to 15 wt. % and an average polymerization degree of more than 700 and 100 wt. parts of polyvinyl chloride at a special high stretch ratio.

Abstract: A heat shrinkable polyvinyl chloride film which shrinks more than 60% in one direction or more than 75% as an area shrinkage is prepared by stretching a film comprising 5 to 25 wt. parts of a methyl methacrylate type copolymer and 100 wt. parts of polyvinyl chloride at a special high stretch ratio.