Compound, crosslinking agent and crosslinked fluoroelastomer
AssigneesNichias Corporation, Kyoto Institute of Technology
InventorsTomoya Shimizu, Ayumi Toh, Tsutomu Konno
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Abstract
The present invention provides a crosslinking agent which can improve crosslinked fluoroelastomer high-temperature vapor resistance and a crosslinked fluoroelastomer having improved high-temperature vapor resistance. The present invention provides a compound having a structure represented by the following formula (1) (in the formula, R1 to R6 are each a hydrogen atom, a substituent, or a leaving group, and two or more of R1 to R6 are leaving groups; Ra to Rc are each a hydrogen atom or a substituent; and n is an integer from 2 to 5).
Claims7
A composition containing a fluoroelastomer, a crosslinking initiator, and a crosslinking agent containing a compound having the structure represented by the following Formula (1):
- wherein R1 to R6 are each a hydrogen atom, a substituent, or a leaving group, and two or more of R1 to R6 are leaving groups;
- Ra to Rc are each a hydrogen atom or a substituent;
- and n is an integer from 2 to 5.
A molded product obtained from a crosslinked fluoroelastomer obtained by crosslinking a composition containing a fluoroelastomer, a crosslinking initiator, and a crosslinking agent containing a compound having the structure represented by the following Formula (I);
- wherein R1 to R6 are each a hydrogen atom, a substituent, or a leaving group, and two or more of R1 to R6 are leaving groups;
- Ra to Rc are each a hydrogen atom or a substituent;
- and n is an integer from 2 to 5.
A crosslinked fluoroelastomer having a crosslinked structure represented by the following formula:
- wherein
- m is an integer from 1 to 15;
- a gel fraction after being exposed to 330° C. saturated steam for 24 hours is 45% or more;
- the crosslinked structure does not contain any unsaturated bonds other than those in aromatic rings;
- and
- the squiggly lines represent attachment points to one or more other fluoroelastomers having the formula
Dependencies are inferred from the claim text.