COMPOSITION FOR PRODUCTION OF THREADS Russian patent published in 1995 - IPC

FIELD: rubber industry. SUBSTANCE: composition for production of threads contains (in terms of dry matter), mas.part: natural rubber latex 100; sulfur 1-5; thiocarbamate vulcanization accelerator 0.1-0.5; zinc salt of 2-mercaptobenzothiazole 1-3; zinc oxide 4-6; titanium oxide 4-6; benzoic acid 0.01-0.03; phenol antioxidant 1-3; casein 0.1-0.3; product of condensation of naphthalene sulfonic acids with formaldehyde 0.2-0.4; potassium hydroxide 0.5-0.85; lauric acid 0.2-0.4; gum arabic 0.2-0.4; oleic acid or mixture of synthetic fatty acids C₉-C₁₄ 0.1-0.4; azomethin vulcanization accelerator 1.5-bis(azo-N-phenyl) pentane 0.05-0.15; and water 90-100. Rubber threads are characterized by tensile strength of 36-40 MPa and elongation of 740-870%. EFFECT: higher efficiency. 2 tbl