Dry-to-the-touch anaerobically curable compositions and products made therefrom
AssigneeHenkel IP & Holding GmbH
InventorsShabbir Attarwala, Ifeanyi C. Broderick, Qinyan Zhu, Roger J. Grismala
Life of this patent
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Abstract
Dry-to-the-touch compositions containing a polymeric matrix and a anaerobically curable component present within the polymeric matrix are disclosed. In a particularly desirable form, the compositions are moisture curable. The compositions are non-flowable, at high temperatures, and have an improved solvent resistance once cured.
Claims14
A dry-to-the-touch curable composition comprising:
- a polymeric matrix comprising a material selected from the group consisting of a polyurethane, a polyurea, a polysulfonamide, a polythiourethane and combinations thereof;
- and
- an anaerobically curable component dispersed within said polymeric matrix,
- wherein said polymeric matrix is present in amounts of about 30% to about 80% by weight of the composition, and the composition remains non-flowable at temperatures greater than 260° C. up to about 300° C.
A dry-to-the-touch curable composition comprising:
- a polymeric matrix comprising a material selected from the group consisting of a polyurethane, a polyurea, a polysulfonamide, a polythiourethane and combinations thereof;
- and
- an anaerobically curable component dispersed within said polymeric matrix,
- wherein said polymeric matrix is present in amounts of about 30% to about 80% by weight of the composition, and the composition remains non-flowable at temperatures greater than 260° C. up to about 300° C., further comprising a moisture cure catalyst.
An article of manufacture comprising a preformed gasket comprising a dry-to-the-touch curable composition comprising a polymer matrix selected from the group consisting of a polyurethane, a polyurea, a polythiourethane and combinations thereof and having an anaerobically curable component distributed therein, wherein said anaerobic curable component comprises at least one (meth)acrylate monomer and a peroxide, wherein said polymeric matrix is present in amounts of about 30% to about 80% by weight of the composition.
A method of preparing an article of manufacture comprising:
- (a) providing a threaded member;
- and
- (b) at least partially coating said threaded member with a dry to the touch curable composition comprising:
- a polymeric matrix comprising a material selected from the group consisting of a polyurethane, a polyurea, a polysulfonamide, a polythiourethane and combinations thereof;
- and
- an anaerobically curable component dispersed within said polymeric matrix,
- wherein said polymeric matrix is present in amounts of about 30% to about 80% by weight of the composition, and the composition remains non-flowable at temperatures greater than 260° C. up to about 300° C.
A method of assembling threaded parts comprising:
- (a) providing a first threaded member;
- (b) providing a second threaded member capable of matingly engaging said first threaded member;
- at least one of said first and second threaded members being at least partially coated with a dry-to-the-touch curable composition comprising:
- a polymeric matrix comprising a material selected from the group consisting of a polyurethane, a polyurea, a polysulfonamide, a polythiourethane and combinations thereof;
- and
- an anaerobically curable component dispersed within said polymeric matrix,
- wherein said polymeric matrix is present in amounts of about 30% to about 80% by weight of the composition, and the composition remains non-flowable at temperatures greater than 260° C. up to about 300° C.;
- and
- (c) matingly engaging said first and second threaded parts and permitting the composition to anaerobically cure therebetween.
Dependencies are inferred from the claim text.