Accelerator for curable acrylic ester compositions

Details Accelerator for curable acrylic ester compositions Accelerator for curable acrylic ester compositions

1977-10-31

1979-12-25

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

156304, 156310, 156331, 156332, 526292, 526301, 526312, 526320, 5263232, 526328, B32B 712, C08F 2020, C08F 2036, C09J 300

Patent

active

041806409

ABSTRACT:
Curable acrylate ester compositions having as an accelerator for the polymerization a hydrazine derivative of the formula R.sup.1 --HN--NH--CO--R.sup.2 and as a co-accelerator, an acid having a pK.sub.a of less than about 6. The compositions may optionally be formulated as two-part compositions with the non-ester-containing part being applied as a primer. Typical of the monomers are the polyalkylene glycol dimethacrylates and the so-called urethane acrylates. Polymerization is preferably initiated by a peroxy compound such as cumene hydroperoxide, such a composition having anaerobic curing characteristics.

REFERENCES:
patent: 3491076 (1970-01-01), Bachman

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