A functional polymeric cutting edge structure and methods for the manufacturing of cutting edge structures comprised of polymeric materials are provided. The cutting edge structures may be produced on a substrate having a blade body or blade support type. The polymeric material is produced by curing a precursor material by electromagnetic radiation wherein a wavelength of said radiation is about double a wavelength required to cure the precursor material. A razor blade for use in a razor cartridge or a blade box may be formed using the present invention.

Biodegradable articles such as tubing and food service items are disclosed. The articles are extrusion molded from a polymer resin which is made up of at least 25 weight percent of at least one biodegradable polymer, such as polyhydroxyalkanoates. Preferably the articles are formed by profile extrusion.

A functional polymeric cutting edge structure and methods for the manufacturing of cutting edge structures comprised of polymeric materials are provided. The cutting edge structures may be produced on a substrate having a blade body or blade support type. The polymeric material is produced by curing a precursor material by electromagnetic radiation wherein a wavelength of said radiation is about double a wavelength required to cure the precursor material. A razor blade for use in a razor cartridge or a blade box may be formed using the present invention.

A dual blade cutting tool is disclosed herein that comprises first and second cutting blades, a finger handle formed on the first cutting blade, the finger handle comprising a first core and a first exoskeleton formed over the first core, a thumb handle formed on the second cutting blade, the thumb handle comprising a second core and a second exoskeleton formed over the second core. The first and second cores have a combination of thickness and rigidity to render the cutting tool suitable for use in cutting, and the first and second exoskeletons have a combination of thickness and softness to provide comfort during extended use of the cutting tool. A method of making the cutting tool also is disclosed.

Polylactide (PLA) parts can be crystallized via two procedures. In the first procedure, i.e. a 2-step post-mold annealing process, the complete crystallization of PLA parts can be done after molding in a secondary operation called as post-mold annealing to make higher heat-resistant PLA parts. There are limitations to this 2-step operation, namely, a) warpage of parts with complex geometries, and b) scaling up higher production volume times. In the second procedure, i.e. 1-step in-mold annealing process, the complete crystallization of PLA parts can be done in the mold itself by holding the temperature of the mold at the crystallization temperature of PLA which is about 100 C. The 1-step in-mold annealing process using a masterbatch blended with neat PLA results in a highly crystalline article produced in a significantly lower cycle time.

A dual shot molded article of cutlery that includes a working end molded from a first material and a molded handle opposite the working end. The article is designed with one or more features that facilitate the efficient and effective manufacture of such products by an overmolding or coreback molding process.

Aspects of the present disclosure relate to injection molded cutlery having a body defining a handle portion and a utensil portion, with an injection gate mark located at a center section of the body. The body can be made from a bio-material injected at a pressure that is less than 60% of an injection pressure required for injection at an end of the body.

Overmolded articles of cutlery that include a first molded structure that includes a working end and a longitudinal support core extending away from the working end, the core including top and bottom surfaces and opposed sidewalls located along its length with the sidewalls having a height that extends above the top surface of the core; and a second molded structure present upon the top surface of the core between the sidewalls forming with the support core a handle for the article. Preferably, the first and second molded structures have different colors and the first molded structure includes islands so as to enhance the appearance of the cutlery. Also, methods of making these articles by overmolding the second molded structure over at least a portion of the first molded structure are disclosed.

The disclosed technology includes a biodegradable utensil and methods for manufacturing the same. The utensil can comprise a utility portion configured to manipulate a food item, a handle portion, and a transition portion disposed between the handle portion and the utility portion. The handle portion can comprise a body having a first thickness, thickness-reducing features each having a thickness less than the first thickness, and a bead extending along at least some of a length of the handle portion. The bead can be continuous and uninterrupted, can extend between a first thickness-reducing feature and a second thickness-reducing feature, and can have a second thickness that is greater than the first thickness.

A medical scalpel system includes a safety handle and an internal mechanism that permits a blade to be extended and retracted relative to the safety handle. At least a portion of the system is manufactured pursuant to a process wherein a material, such as silicone or Teflon, is used in the manufacturing of the components to provide a smooth movement between components of an extension and retraction mechanism.