Anaerobic compositions which expand when post-cured

Details Anaerobic compositions which expand when post-cured Anaerobic compositions which expand when post-cured

1992-08-06

1994-04-12

Lipman, Bernard

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526204, 526258, 526259, 525375, C08F 2240

Patent

active

053026799

ABSTRACT:
An adhesive composition capable of post-cure expansion comprising a multifunctional methacrylate and a maleimide capable of effectuating expansion upon post-cure. A homogeneous mixture of a monomer and maleimide are subjected to a first cure heat stage wherein a rigid partially-cured plastic is formed and a post-cure heat stage to effectuate permanent expansion of the cured adhesive composition.

REFERENCES:
patent: 3988299 (1976-11-01), Malofsky
patent: 5124419 (1992-06-01), Arpin
Enns, John B. et al., Time Temperature-Transformation (TTT) Cure Diagram: Modeling the Cure Behavior of Thermosets, 28 Journal of Applied Polymer Science 2568, (1983).
Kinkelaar, M. et al. Volume Change in the Cure of Low Profile Unsaturated Polyester Resin, Sampe Quarterly, Jul. 1990, at 40.
Bailey, William J., Ring-Opening Polymerization With Expansion in Volume, 18 ACS Polymer Preprints 17, (Mar. 1977).
Boeder, Charles W., Anaerobic and Structural Acrylic Adhesives, Structural Adhesives-Chemistry and Technology 217, (S. R. Hartshorn ed., New 1986).

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