FIELD: chemistry; manufacturing technology.
SUBSTANCE: invention relates to production of high-modulus single twisted thread from nylon 6.6 as reinforcement in pneumatic tires and industrial rubber articles. Impregnated and heat-fixed single thread or twisted strand from polyamide 6.6 is made from high-modulus initial threads of polyamide 6.6, having tensile force values at 4 % elongation greater than 1.3 cN/decitex, wherein initial threads are stretched by more than 5 % and less than 12 % in the temperature range of 230–250 °C. Minimum heat shrinkage of said cords is 4 %, and maximum shrinkage is 7 %.
EFFECT: invention provides for creation of single twisted threads having high value of module for reinforcement in pneumatic tires and industrial rubber articles.
5 cl
| Title | Year | Author | Number |
|---|---|---|---|
| HIGH-MODULUS CORDS OF NYLON 6.6 | 2016 |
|
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| HYBRID CORD AS CARCASS REINFORCEMENT IN DIAGONAL TIRES | 2015 |
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RU2703441C1 |
