Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1979-07-16
1981-10-27
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
73150A, 106288Q, 156 64, 156 92, 156294, 156344, 260 37N, 260 4221, 2604654, 428 43, 428223, 428463, 428522, 526298, 403 2, C09J 500
Patent
active
042971608
ABSTRACT:
Thread locking compositions and analogous sealant materials having limited cured strength, and a preferred method for their compounding and application, are disclosed. These are based primarily on alpha cyanoacrylates, i.e. acrylate esters in monomer or low polymeric form, or of very low molecular weight, which are rapidly polymerizable to form solid and bonding films. The materials, in liquid form, are modified by inclusion of coloring agents and other film strength and reaction rate modifiers, to impart optimum properties of bonding strength, curing rate, moderate resistance in torque to separation of the bonded parts, low residual torque, along with good stability in storage, or good shelf life. Combinations of polymerization promoters and stabilizers are included, along with small quantities of specially selected coloring agents which not only impart effective color to thin films of the composition but serve to limit curing below high cured strength. The coloring agents are compatible with the monomers and the resulting cured polymers. Application of the protective composition to plated or unplated metal parts, plastic members which bear threads or seal surfaces, and the like, may be by standard coating procedures or by capillary action.
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patent: 2989107 (1961-06-01), James et al.
patent: 3699076 (1972-10-01), Thomsen et al.
patent: 3825580 (1974-07-01), Kato et al.
patent: 3922449 (1975-11-01), Bolger
patent: 4062827 (1977-12-01), Zollman
patent: 4170585 (1979-10-01), Motegi et al.
Kusayama Senji
Nishi Eijiro
Stock Hugh J.
Gallagher John J.
Pacer Technology and Resources, Inc.
Sumitomo Chemical Company Ltd.
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