摘要:
The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition. The thermoplastic polymer composition comprises a fluororesin (A) comprising a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) is 85/15 to 40/60, a fuel permeation coefficient of a molded article obtained from the composition is not more than 40 g· mm/m 2 · day and a tensile modulus of elasticity of the molded article is not more than 400 MPa.
摘要:
Desired is a technology for improving the vibration-damping properties of a chloroprene rubber under low-temperature environment without deterioration of the mechanical properties, permanent compression set, and tension fatigue. Provided is a chloroprene rubber composition, comprising a chloroprene rubber at least containing a xanthogen-modified chloroprene rubber and/or a mercaptan-modified chloroprene rubber in an amount of 100 parts by mass, a carbon black having a number-average particle diameter of 70 nm to 600 nm and a DBP oil absorption, as determined by the Oil Absorption A method of JIS-K6221, of 15 ml/100g to 60 ml/100g in an amount of 15 to 150 parts by mass, and a plasticizer represented by the following Chemical Formula (1) in an amount of 3 to 30 parts by mass: [C. 1] €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 COO-(CH 2 ) 8 -COOR 2 €ƒ€ƒ€ƒ€ƒ€ƒ(1) (wherein, R 1 and R 2 each represent an alkyl group having a carbon number of 1 to 7).
摘要:
This invention relates to a method for preparing an elastomeric article with improved lubricity and donnability and reduced stickiness/tackiness. According to the methods of the invention, the internal surface of the elastomeric article is coated with a polyisoprene layer. The coating of the invention is formed from synthetic polyisoprene rubber that may or may not contain minor amounts of other components. The coating is preferably directly bonded to the underlying elastomenc article.