FIELD: chemistry.
SUBSTANCE: invention relates to a method and material for making elastomeric articles from nitrile rubber. The elastomeric article is made from carboxylated butadiene-nitrile rubber composition in latex form. The rubber composition consists of two acrylo-nitrile compositions - first and second, taken in ratio between 60:40 and 40:60. The rubber composition has glass transition temperature Tg between -15°C and -30°C. The composition contains a proportional amount of alkali metal and metal oxide, where the amount of metal hydroxide is equal to 0-1.5 parts, and the amount of the metal oxide is greater than 0.5 but less than or equal to 1.5 parts per 100 dry parts of rubber. The article has given thickness of up to 0.12 mm.
EFFECT: invention enables to obtain a nitrile rubber-based article such as elastomeric gloves, having properties which characterise force and deformation correlation, comparable with characteristics of articles made from natural rubber latex, and retaining tensile strength on the same level as nitrile rubber.
12 cl, 4 dwg, 4 tbl
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Authors
Dates
2011-07-10—Published
2006-04-27—Filed