A method for manufacturing a resin container includes: a first injection-molding step of injection-molding a bottomed cylindrical resin intermediate molded body; a second injection-molding step of injection-molding a resin material on an outer side of the intermediate molded body to manufacture a multilayered preform having a resin layer laminated on an outer peripheral side of the intermediate molded body; and a blow-molding step of blow-molding the preform to manufacture a resin container having a thick portion.

The invention concerns a bottle (1) molded from at least one thermoplastic polymer of at least one Furan Dicarboxylic Acid (FDCA) monomer, preferably 2,5-Furan Dicarboxylic Acid (2,5-FDCA) monomer, and at least one diol monomer, preferably Monoethyleneglycol (MEG) monomer, said bottle, having a main axis (X), being provided with a body (5) and a bottom base (6) extending from a lower end of the body (5). The bottom base (6) comprises:—a peripheral seat (7) defining a laying plane (8);—a concave arch (10) which extends from the periphery of a central zone (11) of the bottom base (6) to the peripheral seat (7), said concave arch (10) having a rounded general shape with a concavity turned towards the outside of the container (1) and the middle point of the central zone (11) being named push-up (11a);—a series of reinforcing grooves (13) which extend radially from the central zone (11) to at least the peripheral seat (7);—base feet (14) located between two adjacent reinforcing grooves (13); According to the invention, the bottle bottom base (6) comprises an offset sitting radius, defined as the distance between the maximum bottle diameter and the contact point of the base feet with the laying plan (8) that is in the range of 5 to 10 mm for a bottle having a diameter (D) between 40 and 150 mm.

When a hollow molded body using a preform to be molded with a thin bottom portion is produced while taking advantage of the roughening of the outer surface of an injection core mold, transferred roughening marks are prevented from appearing on the bottom portion of hollow molded bodies, so that the hollow molded body with an aesthetic bottom portion is obtained. An injection core mold (12) has an outer surface of its tip portion corresponding to a preform bottom portion (10) and a lower end portion (14a) of a preform body portion (14). The outer surface corresponding to the preform bottom portion (10) and the lower end portion (14a) of the preform body portion (14) is a mirror-finished surface (20), and the outer surface of the injection core mold for forming the preform other than the mirror-finished surface is a roughened surface (15).

The invention relates to a container preform made of plastics material having a body exhibiting symmetry of revolution about a central axis and a bottom closing the body from one of its ends. The bottom having an annular bead forming a standing plane of the preform, and the bottom has an external skin oriented toward the outside of the preform and an internal skin oriented toward the inside of the preform. At least one of the internal skin and the external skin has, radially from the central axis as far as the annular bead, a profile having a break in curvature.

Blow molded articles having a predetermined feature incorporated into the wall provided by variations in the thickness of the wall of the article corresponding to a predetermined pattern etched into the preform from which the article was formed. Also, etched preforms for making blow molded articles and methods for making such preforms and articles.

Method of making a blow molded article from a preform including: a) providing a preform of a thermoplastic material having a plurality of effect structures each having an effect surface having a normal with an orientation, the preform having a body with one or more walls and an opening, wherein at least a portion of the one or more walls of the preform has a three-dimensional pattern of cavities and/or protrusions thereon; and b) blow molding the preform to form a blow molded article, wherein the step of blow molding the preform changes the orientation of the normal of at least some of the effect surfaces of the effect structures to create a visual effect in at least one wall of the blow molded article.

A blow molded article having a body portion that includes one or more walls surrounding an interior space. The one or more walls have an article inner surface, an article outer surface, and a wall thickness. At least a portion of the one or more walls includes one or more effect structures each having an effect surface normal having an orientation. Further there is a first region including a plurality of first effect structures having a first Average Normal Orientation, a second region including a plurality of second effect structures having a second Average Normal Orientation which is different from the first Average Normal Orientation, and a visual effect resulting from the difference between the first Average Normal Orientation of the effect structures in the first region and the second Average Normal Orientation of the effect structures in the second region.

Method of making a blow molded article from a preform including: a) providing a preform of a thermoplastic material having a plurality of effect structures each having an effect surface having a normal with an orientation, the preform having a body with one or more walls and an opening, wherein at least a portion of the one or more walls of the preform has a three-dimensional pattern of cavities and/or protrusions thereon; and b) blow molding the preform to form a blow molded article, wherein the step of blow molding the preform changes the orientation of the normal of at least some of the effect surfaces of the effect structures to create a visual effect in at least one wall of the blow molded article.

A plastic blank includes a blank structure. The blank structure includes an elongate body portion and a head portion. One of two ends of the body portion is closed, and the head portion is connected to the other end of the body portion. The body portion has a space therein. The head portion has an opening communicating with the space. The outer periphery of the body portion is even so that a stick having product labelling can be attached onto the outer periphery of the body portion. The inner periphery of the body portion has a plurality of ribs protruded inward the space and extending along the body portion to improve the structural strength of the body portion along the length direction.

The invention concerns a bottle (1) molded from at least one thermoplastic polymer of at least one Furan Dicarboxylic Acid (FDCA) monomer, preferably 2,5-Furan Dicarboxylic Acid (2,5-FDCA) monomer, and at least one diol monomer, preferably Monoethyleneglycol (MEG) monomer, said bottle, having a main axis (X), being provided with a body (5) and a bottom base (6) extending from a lower end of the body (5), The bottom base (6) comprises: —a peripheral seat (7) defining a laying plane (8); —a concave arch (10) which extends from the periphery of a central zone (11) of the bottom base (6) to the peripheral seat (7), said concave arch (10) having a rounded general shape with a concavity turned towards the outside of the container (1) and the middle point of the central zone (11) being named push-up (11a); —a series of reinforcing grooves (13) which extend radially from the central zone (11) to at least the peripheral seat (7); —base feet (14) located between two adjacent reinforcing grooves (13); According to the invention, the bottle bottom base (6) comprises a push-up height, defined as the height between the push-up (11a) and the laying plan (8), that is in the range of 7 to 10 mm for a bottle having a diameter (D) between 40 and 150 mm.