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Anaerobically curable compositions

A composition and mixture technology, applied in the direction of non-polymer organic compound adhesives, graft polymer adhesives, adhesive types, etc., can solve the problems of skin damage, fluid composition leakage, etc.

Pending Publication Date: 2022-02-08
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is therefore a risk that during the handling of coated engineered parts the skin may be damaged and the fluid composition may leak

Method used

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  • Anaerobically curable compositions
  • Anaerobically curable compositions
  • Anaerobically curable compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] Example 1 - Paste Formulation 4158-045.

[0147]

[0148] LID 6882 is a functional solid resin which is a difunctional methacrylated PU resin derived from semi-crystalline polyols. When it is micronized, it has an average particle size of <100 μm.

[0149] Combine the composition in the table above with the solid monomer: 2-methacryloyloxyethylphenylcarbamate.

Embodiment 2

[0150] Example 2: Paste formulation 4158-063

[0151]

[0152] LID 6882 is a functional solid resin which is a difunctional methacrylated PU resin derived from semi-crystalline polyols. When it is micronized, it has an average particle size of <100 μm.

[0153] Combine the composition in the table above with the solid monomer: 2-methacryloyloxyethylphenylcarbamate.

[0154] figure 1 is a graph showing the 24 hour cured strength of the composition of this example on various M10 threaded fasteners. The composition of this example was applied to M10 bolts which had been heated to 90°C. The bolts used are made of stainless steel, zinc phosphate, zinc dichromate coated steel, brass and black oxide coated mild steel. The paste is applied to the heated part, where it melts and then cools to form a solid waxy coating. The mating nuts were assembled with the coated parts and the unseated assembly was allowed to cure for 24 hours after which the strength required to separate the...

Embodiment 3

[0155] Example 3: Paste formulation 4158-064

[0156]

[0157] Non-functional solid powder: polyethylene glycol with an average molecular weight of 8000g / mol.

[0158] Combine the composition in the table above with the solid monomer: 2-methacryloyloxyethylphenylcarbamate.

[0159] When used herein in relation to the present invention, the words "comprises / comprises" and the words "has / comprises" are used to specify the presence of stated features, integers, steps or components, but not to exclude one or more other further The presence or addition of features, integers, steps, components or groups thereof.

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Abstract

The invention relates to an anaerobically curable composition comprising: (a) a non-encapsulated liquid anaerobically curable monomer forming a liquid phase; (b) a solid component dispersed as a solid phase within the liquid phase formed by the non-encapsulated liquid anaerobically curable monomer; wherein the solid component has (meth)acrylate functionality and: (i) is in particulate form with the particles having a particle size in the range from about 80 pm to about 300 pm; and (ii) has a melting temperature of from about 50 DEG C to about 90 DEG C; and (c) a curing component for curing the anaerobically curable composition within the liquid phase. The anaerobically curable composition can easily be coated onto substrates such as threaded fasteners or other parts in its flowable form and then converted to anaerobically curable composition in solid form.

Description

technical field [0001] The present invention relates to anaerobically curable compositions. In particular, the present invention relates to anaerobically curable compositions that are readily dispensed but remain in place. Background technique [0002] Anaerobically curable compositions are generally well known. See, eg, "Anaerobic Adhesives" in R.D. Rich, Handbook of Adhesive Technology, 29, 467-79, A. Pizzi and K.L. Mittal, eds., Marcel Dekker, Inc., New York (1994), and references cited therein. Their uses are extensive and new applications are constantly being developed. [0003] Anaerobic binder systems are those that are stable in the presence of oxygen but polymerize in the absence of oxygen. Polymerization is initiated by the presence of free radicals, usually generated by peroxygen compounds. Anaerobic adhesive compositions are well known for their ability to remain in a liquid, unpolymerized state in the presence of oxygen and to cure to a solid state upon excl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/00C09J133/04C08F220/18C08F220/36C08F290/06C08L33/06
CPCC09J133/04C08L33/06C08F220/1812C08F220/365C09J4/06C08F290/067C08F290/062C09J11/00C08L2207/324C08L2666/02C08L2666/40C09J2475/00C09J2400/163C09J2400/20C09J2433/00C09J2467/00C08L2201/00C08L2666/04C08L2666/34C08L2666/66C08L2201/56C08L2666/28C08L2205/02C08L2203/00C08L2207/00C09J2203/00C09J11/06C09J9/00C09J2301/20C08L33/08C09J11/02C09J133/14C09J151/003C09J2451/00
Inventor F·墨菲D·马伦D·康德伦B·科尼夫赛N·斯威尼
Owner HENKEL KGAA