Patent classifications
B29L2031/4864
DIP-FORMED ARTICLE
Disclosed is a dip-formed article obtained by dip-molding a latex composition for dip-forming, which contains a crosslinking agent and a latex for dip-forming containing a copolymer composed of 40-80% by weight of conjugated diene monomer units (A) containing an isoprene unit, 20-45% by weight of ethylenically unsaturated nitrile monomer units (B), and 2-15% by weight of ethylenically unsaturated acid monomer units (C), and having a weight ratio of butadiene unit content to isoprene unit content that falls within the range of 60:40 to 100:0. Tear strength is at least 50 N/mm, tensile strength is at least 25 MPa, and oil swelling rate does not exceed 5%.
Biological method for forming grip surface during glove manufacture
Systems and methods for creating a grip surface (104) of a protectant glove (100). The method may comprise dipping a glove mold into a coagulant material (206); dipping the glove mold into a nitrile coating formulation to form an outer surface of the glove (208), wherein a biodegradable material is distributed throughout the nitrile coating formulation; vulcanizing at least the outer surface of the glove to form a protectant outer surface (212); washing at least the outer surface of the glove with an enzyme solution; decomposing, by the enzyme solution, the biodegradable material that is distributed throughout the outer surface of the glove, thereby forming a grip surface of the glove comprising an open-cell structure within the outer surface (216); and drying the glove to form a final glove comprising the grip surface (218).
GRIP SURFACES
Provided among other things is a method of forming a composite glove with a grip texture, comprising: (a) providing a coagulant-coated support layer that is a fabric layer or a polymeric layer; (b) dip applying to the support layer a foamed polymer dispersion comprising about 0.5% to about 2.0% by weight hygroscopic agent; (c) allowing a portion of the applied foamed polymer dispersion to coagulate based the coagulant diffusing from the support layer to form a partially coagulated foam layer; (d) washing the partially coagulated foam layer to remove uncoagulated polymer to form a coagulated foam layer; and (e) vulcanizing the coagulated foam layer to form a vulcanized open foam layer laminated to the support.
Apparatus, systems, and methods for sealing an interface
A protective guard is provided for sealing an interface. The protective guard includes a body having a fluid impervious material and proximal and distal segments that may comprise a superabsorbent or a non-superabsorbent material. The proximal and distal segments are positioned on first and second sides, respectively, of the interface. The protective guard extends about the interface to create a fluid barrier. In some embodiments, the non-superabsorbent material may be an elastic material, such as an elastic band, and in particular embodiments, the non-superabsorbent material may be nitrile. In further embodiments, the non-superabsorbent material may be an expandable material that expands upon contact or interaction with a fluid.
Latex Composition for Dip Molding, Molded Article Molded from Latex Composition for Dip Molding, and Method of Producing Molded Article
A dip-molded article includes an external molded layer and internal molded layer. The external molded layer includes a content of an ethylenically unsaturated nitrile-based monomer-derived repeating unit is 35 wt % to 60 wt %, and the internal molded layer in which a content of an ethylenically unsaturated nitrile-based monomer-derived repeating unit is 10 wt % to 28 wt %.
Method of Preparing Carboxylic Acid-Modified Nitrile-Based Copolymer Latex
A method of preparing a carboxylic acid-modified nitrile-based copolymer latex is provided. The method of preparing a carboxylic acid-modified nitrile-based copolymer later includes emulsion-polymerizing a monomer mixture including a conjugated diene-based monomer, an ethylenically unsaturated nitrile-based monomer, and an ethylenically unsaturated acid monomer in the presence of a cross-linking agent including glyoxal.
Support device
A support device for improving the haptics and/or gripping impression of humanoid or android type hands includes an active surface that interacts with parts (16, 18, 22) of the respective hand to carry out a movement and that has individual stem-like projections. Each projection has a free end face such that the projections at least partially improve the adhesion of at least parts of the hand or a hand protector (10) to surfaces, particularly smooth or delicate surfaces, that are touched. The respective free end faces (26) of the projections (24) are designed such that their adhesion results from acting van der Waals forces between the free end faces (26) and the touched surface.
AMBIDEXTROUS FISH SCALE-TEXTURED GLOVE
The described invention relates to an ambidextrous working glove having fish scale-textured inner and outer surfaces and methods of making same.
Ambidextrous fish scale-textured glove
The described invention relates to an ambidextrous working glove having fish scale-textured inner and outer surfaces and methods of making same. The textured outer surfaces include a series of protruding ridges surrounded by depressions. The textured inner surfaces are the reverse of the textured outer surfaces and include a series of islands surrounded by channels. The textured outer surfaces and textured inner surfaces provide advantageous grip properties.
Stripping of a dip-moulded glove from a former
Glove stripping apparatuses for fully stripping a partially stripped elastomeric dip-moulded glove from a dip-moulding former comprises a gripper having first and second gripping members movable relative to each other, an abutment, an open space, and an actuation system. Also, production lines for producing elastomeric dip-moulded gloves, methods for fully stripping gloves from dip-moulding formers, and production line processes.