Abstract: A polylactic acid resin film or sheet which can be satisfactorily and stably formed and has excellent matte properties. It is a single-layer matte film or sheet which comprises a polylactic acid resin composition containing a particulate substance and at least one side of which has a surface gloss as measured in accordance with ASTM-D2457-70 (45° gloss) of 60% or lower.

Abstract: A single-layer matte film or sheet which comprises a filler and a biodegradable resin (A) comprising a blend of a biodegradable polyester (a1) having a glass transition temperature Tg of 10° C. or lower and a biodegradable polyester (a2) having a glass transition temperature Tg of 30° C. or higher, and in which at least one side thereof has a surface gloss (45-degree gloss) as measured in accordance with ASTM-D2457-70 of 60% or lower.

Abstract: A biodegradable resin drawn film or biodegradable resin drawn sheet that is excellent in transparency, impact resistance and film re-forming capability (recyclability); and a process for producing the same. In particular, a biodegradable resin drawn film or biodegradable resin drawn sheet composed mainly of a mixture of (A) a biodegradable resin of greater than or equal to 30° C. as a glass transition temperature Tg and (B) a biodegradable resin of less than or equal to 5° C. as a glass transition temperature Tg characterized in that a multiplicity of domains comprising component (B) mainly in the configuration of lamellar or rod-shaped pieces are present in a continuous phase comprising component (A) substantially in parallel to the external surface of the film or sheet; and a process for producing the same.

Abstract: A single-layer matte film or sheet which comprises a filler and a biodegradable resin (A) comprising a blend of a biodegradable polyester (a1) having a glass transition temperature Tg of 10° C. or lower and a biodegradable polyester (a2) having a glass transition temperature Tg of 30° C. or higher, and in which at least one side thereof has a surface gloss (45-degree gloss) as measured in accordance with ASTM-D2457-70 of 60% or lower.

Abstract: A polylactic acid resin film or sheet which can be satisfactorily and stably formed and has excellent matte properties. It is a single-layer matte film or sheet which comprises a polylactic acid resin composition containing a particulate substance and at least one side of which has a surface gloss as measured in accordance with ASTM-D2457-70 (45° gloss) of 60% or lower.

Abstract: The present invention provides a biaxially oriented film of a polylactic acid resin that is suitable for films for bags and packaging films for various windows, particularly films for outlook window envelopes. The film is biodegradable and, as films for outlook window envelopes, is superior in the coating adaptability for an antistatic agent, a lubricant and an antiblocking agent or the like and in the high-speed cutting property. The present invention discloses a biaxially oriented film of a polylactic acid resin comprising not less than 50% by weight of a polylactic acid resin, which has a storage modulus E?at 80° C. within the range from 10 MPa to 3,000 MPa, as determined by the test method for temperature dependency of dynamic viscoelasticity, in accordance with JIS K7198 (method A); a heat shrinkage of not higher than 10%, upon heating at 80° C. for 10 seconds; and a tear strength in the width direction (TD direction) of the film of 10 to 200 mN, as determined in accordance with JIS K7128 (method B).

Abstract: A biodegradable resin drawn film or biodegradable resin drawn sheet that is excellent in transparency, impact resistance and film re-forming capability (recyclability); and a process for producing the same. In particular, a biodegradable resin drawn film or biodegradable resin drawn sheet composed mainly of a mixture of (A) a biodegradable resin of greater than or equal to 30° C. as a glass transition temperature Tg and (B) a biodegradable resin of less than or equal to 5° C. as a glass transition temperature Tg characterized in that a multiplicity of domains comprising component (B) mainly in the configuration of lamellar or rod-shaped pieces are present in a continuous phase comprising component (A) substantially in parallel to the external surface of the film or sheet; and a process for producing the same.

Abstract: The present invention provides a biaxially oriented film of a polylactic acid resin that is suitable for films for bags and packaging films for various windows, particularly films for outlook window envelopes. The film is biodegradable and, as films for outlook window envelopes, is superior in the coating adaptability for an antistatic agent, a lubricant and an antiblocking agent or the like and in the high-speed cutting property. The present invention discloses a biaxially oriented film of a polylactic acid resin comprising not less than 50% by weight of a polylactic acid resin, which has a storage modulus E?at 80° C. within the range from 10 MPa to 3,000 MPa, as determined by the test method for temperature dependency of dynamic viscoelasticity, in accordance with JIS K7198 (method A); a heat shrinkage of not higher than 10%, upon heating at 80° C. for 10 seconds; and a tear strength in the width direction (TD direction) of the film of 10 to 200 mN, as determined in accordance with JIS K7128 (method B).

Abstract: An adhesive wrapping film having a continuous tackifier layer (A) on at least one side surface of a substrate layer (B) whose surface has a concavo-convex form, wherein a thickness of the tackifier layer at the concave portion of the substrate layer is larger than that at the convex portion of the substrate layer, and a thickness of the substrate layer BAV, a thickness of the tackifier layer at the concave portion of the substrate layer Amax, a ten-point average roughness of the surface of the tackifier layer corresponding to a height of the convex portion of the tackifier layer RZ(A), and a ten-point average roughness of the surface of the substrate layer corresponding to a height of the convex portion of the substrate layer RZ(B) satisfy a relation of the following conditional expressions (1) and (2): (1) Amax<RZ(B)<BAV (2) RZ(A)<RZ(B).

Abstract: An adhesive wrapping film having a continuous tackifier layer (A) on at least one side surface of a substrate layer (B) whose surface has a concavo-convex form, wherein a thickness of the tackifier layer at the concave portion of the substrate layer is larger than that at the convex portion of the substrate layer, and a thickness of the substrate layer BAV, a thickness of the tackifier layer at the concave portion of the substrate layer Amax a ten-point average roughness of the surface of the tackifier layer corresponding to a height of the convex portion of the tackifier layer RZ(A) and a ten-point average roughness of the surface of the substrate layer corresponding to a height of the convex portion of the substrate layer RZ(B) satisfy a relation of the following conditional expressions (1) and (2):

Abstract: Cold-stretched products comprising a propylene-based resin composition obtained by mixing(A) a polymer consisting mainly of propylene units, in a proportion of not more than 92% by weight and not less than 50% by weight,(B) a polymer consisting mainly of butene-1 units or an ethylene-.alpha.-olefin copolymer having a softening point of 95.degree. C. or lower, in a proportion of not more than 47% by weight and not less than 5% by weight,(C) a tackifier in a proportion of not more than 25% by weight and not less than 3% by weight, the sum of the proportions being 100% by weight; and a process for producing said cold-stretched products.