C08L11/02

DIPPING COMPOSITE MATERIAL FOR ENHANCING CUT RESISTANCE OF CHEMICAL-RESISTANT GLOVES

Disclosed is a dipping composite material for enhancing the cut resistance of chemical-resistant gloves, wherein an additive is added to a latex, and the additive is a metal oxide and/or silica and/or glass fiber and/or basalt fiber and/or aramid fiber. The present invention improves the formula of a dipping layer such that the dipping layer has the cut resistance, which can significantly improve the cut resistant level of gloves.

Softer Blended Nitrile Elastomeric Article
20220135776 · 2022-05-05 ·

An elastomeric article is formed from a blend of nitrile rubber and polychloroprene rubber. The elastomeric article can be a glove, such as a medical exam glove. The elastomeric article is softer than a conventional nitrile elastomeric article. The elastomeric article is formed from a blended rubber latex emulsion of nitrile and polychloroprene. The blended rubber latex emulsion may be free of sulfur and vulcanization accelerators.

Softer Blended Nitrile Elastomeric Article
20220135776 · 2022-05-05 ·

An elastomeric article is formed from a blend of nitrile rubber and polychloroprene rubber. The elastomeric article can be a glove, such as a medical exam glove. The elastomeric article is softer than a conventional nitrile elastomeric article. The elastomeric article is formed from a blended rubber latex emulsion of nitrile and polychloroprene. The blended rubber latex emulsion may be free of sulfur and vulcanization accelerators.

Biodegradable elastomeric film composition and method for producing the same
20220025161 · 2022-01-27 ·

The invention relates to a method to manufacture an elastomeric article includes preparing a former for shaping the elastomeric article; dipping the former into a coagulant solution which including one or more one or more polyvalent metal salt, surfactant, wetting agents, anti-tack materials, non-settling agents, and biocide; dipping the coagulant-coated former into a synthetic latex composition from 20° C. to 40° C. at least once to create the elastomeric article; pre-leaching the elastomeric article for not more than 10 times; vulcanizing the elastomeric article to enable effective crosslinking; surface treating the vulcanized elastomeric article form 60° C. to 140° C.; post-leaching the elastomeric article at temperature of 30° C. to 95° C.; applying donning aid to the elastomeric article; drying the elastomeric article; and stripping the elastomeric article from the former. The elastomeric article has a thickness of 0.001 to 5 mm, a minimum tensile strength of 7 MPa, and an elongation above 300%.

Biodegradable elastomeric film composition and method for producing the same
20220025161 · 2022-01-27 ·

The invention relates to a method to manufacture an elastomeric article includes preparing a former for shaping the elastomeric article; dipping the former into a coagulant solution which including one or more one or more polyvalent metal salt, surfactant, wetting agents, anti-tack materials, non-settling agents, and biocide; dipping the coagulant-coated former into a synthetic latex composition from 20° C. to 40° C. at least once to create the elastomeric article; pre-leaching the elastomeric article for not more than 10 times; vulcanizing the elastomeric article to enable effective crosslinking; surface treating the vulcanized elastomeric article form 60° C. to 140° C.; post-leaching the elastomeric article at temperature of 30° C. to 95° C.; applying donning aid to the elastomeric article; drying the elastomeric article; and stripping the elastomeric article from the former. The elastomeric article has a thickness of 0.001 to 5 mm, a minimum tensile strength of 7 MPa, and an elongation above 300%.

Biodegradable elastomeric film composition and method for producing the same
20220025161 · 2022-01-27 ·

The invention relates to a method to manufacture an elastomeric article includes preparing a former for shaping the elastomeric article; dipping the former into a coagulant solution which including one or more one or more polyvalent metal salt, surfactant, wetting agents, anti-tack materials, non-settling agents, and biocide; dipping the coagulant-coated former into a synthetic latex composition from 20° C. to 40° C. at least once to create the elastomeric article; pre-leaching the elastomeric article for not more than 10 times; vulcanizing the elastomeric article to enable effective crosslinking; surface treating the vulcanized elastomeric article form 60° C. to 140° C.; post-leaching the elastomeric article at temperature of 30° C. to 95° C.; applying donning aid to the elastomeric article; drying the elastomeric article; and stripping the elastomeric article from the former. The elastomeric article has a thickness of 0.001 to 5 mm, a minimum tensile strength of 7 MPa, and an elongation above 300%.

SYNTHETIC RUBBER LATEX COMPOSITIONS WITH IONIC LIQUID FOR ELASTOMERIC GLOVES

Provided are compositions and associated methods for producing elastomeric rubber gloves with improved strength and flexibility at desirable glove palm thicknesses. An example elastomeric rubber glove comprises a substrate formed from a composition comprising a synthetic rubber latex, and an ionic liquid. The ionic liquid may comprise a combination of one or more alkyl imidazole ionic salts. The composition may comprise one or more metal oxides, including at least one of zinc oxide, magnesium oxide, cadmium oxide, and aluminum oxide. The synthetic rubber latex compositions were found to yield a material with strength and flexibility characteristics comparable to natural latex gloves of a greater thickness. The described gloves may also be cured without the addition of Sulphur and other vulcanization or rubber accelerators, further reducing the risk of allergies and costs of production.

SYNTHETIC RUBBER LATEX COMPOSITIONS WITH IONIC LIQUID FOR ELASTOMERIC GLOVES

Provided are compositions and associated methods for producing elastomeric rubber gloves with improved strength and flexibility at desirable glove palm thicknesses. An example elastomeric rubber glove comprises a substrate formed from a composition comprising a synthetic rubber latex, and an ionic liquid. The ionic liquid may comprise a combination of one or more alkyl imidazole ionic salts. The composition may comprise one or more metal oxides, including at least one of zinc oxide, magnesium oxide, cadmium oxide, and aluminum oxide. The synthetic rubber latex compositions were found to yield a material with strength and flexibility characteristics comparable to natural latex gloves of a greater thickness. The described gloves may also be cured without the addition of Sulphur and other vulcanization or rubber accelerators, further reducing the risk of allergies and costs of production.

MULTILAYER SYNTHETIC RUBBER COMPOSITIONS
20220016322 · 2022-01-20 ·

Provided are multilayer synthetic rubber compositions formed from a layer of a styrene block copolymer composition and a layer of one or more synthetic elastomers, such as polychloroprene, polyisoprene, nitrile rubber, styrene butadiene rubber, butyl rubber and polyurethane. The multilayer compositions find use in the manufacture of thin walled articles, for example gloves, particularly medical or industrial gloves.

MULTILAYER SYNTHETIC RUBBER COMPOSITIONS
20220016322 · 2022-01-20 ·

Provided are multilayer synthetic rubber compositions formed from a layer of a styrene block copolymer composition and a layer of one or more synthetic elastomers, such as polychloroprene, polyisoprene, nitrile rubber, styrene butadiene rubber, butyl rubber and polyurethane. The multilayer compositions find use in the manufacture of thin walled articles, for example gloves, particularly medical or industrial gloves.