Anaerobically hardening adhesives and sealants containing a hydr

Details Anaerobically hardening adhesives and sealants containing a hydr Anaerobically hardening adhesives and sealants containing a hydr

1975-08-25

1976-10-26

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526218, C08F12010

Patent

active

039885070

ABSTRACT:
Organic hydrazones (compounds which contain the =N--N=C= structure) are accelerators for aerostable anaerobically-setting adhesive compositions. They can be used with stabilizers. Preferred hydrazones are acetophenone hydrazone, methyl ethyl ketone hydrazone, methyl isobutyl ketone hydrazone. These provide rapid setting times with good ultimate strength, and have little adverse effect upon the storage stability of the compositions when access of molecular oxygen is permitted. Diacetyl hydrazone provides best ultimate strength.

REFERENCES:
patent: 3625930 (1971-12-01), Toback et al.
patent: 3775385 (1973-11-01), Ozono et al.

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