Vibration damping rubber composition

Details Vibration damping rubber composition Vibration damping rubber composition

2007-02-20

2007-02-20

Choi, Ling-Sui (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S375000, C525S379000

Reexamination Certificate

active

11387778

ABSTRACT:
A vibration damping rubber composition having an excellent vibration damping performance includes the following (A) to (C) as essential components:(A) a diene-based rubber;(B) a vulcanizing agent of a bismaleimide compound represented by the following formula (1):[wherein X denotes a substituted or unsubstituted aliphatic saturated hydrocarbon group; and R1to R4may be the same or different and each denote a hydrogen atom, an alkyl group, —NH2, or —NO2, provided that the bismaleimide compound represented by formula (1) excludes a compound in which X is —(CH2)n- (n is an integer of 4 to 12) and all R1to R4are hydrogen atoms], wherein the vulcanizing agent is sulfur-free; and(C) a vulcanization accelerator.

REFERENCES:
patent: 2989504 (1961-06-01), Little
patent: 3219891 (1965-11-01), Benedict
patent: 3806558 (1974-04-01), Fischer
patent: 2-284935 (1990-11-01), None
patent: 3-54235 (1991-03-01), None
patent: 4-136049 (1992-05-01), None
patent: 04-136049 (1992-05-01), None

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