IP Library Granted Patent US 8,999,092
Granted Patent B2
US 8,999,092 · App. 14/197,248 · Granted Apr 7, 2015

Aqueous-based composition suitable for use in threadlocking applications

Inventor: Peter Wrobel (Dublin, IE)
Assignee: Henkel Ireland Limited
F16B39/225C08F265/02C09D151/00C08F222/1006
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Quick Facts
Patent No.
US 8,999,092
App. No.
14/197,248
Granted
Apr 7, 2015
Kind
B2
Abstract

The present invention relates to aqueous-based compositions suitable for use in threadlocking applications comprising: a) at least one carboxyl group containing (co)polymer; b) at least one polymerizable monomer A containing one acryloyl group; c) at least one polymerizable compound B containing at least two acryloyl groups; d) at least one encapsulated free radical initiator; and e) water. The inventive aqueous-based compositions are preferably substantially free of volatile organic solvents.

Claims (33)

1. A coated fastener obtained by a process, comprising the steps of:

a) providing a fastener, preferably a threaded fastener;

b) applying to at least one part of the fastener an aqueous-based composition comprising:

i) at least one carboxyl group containing (co)polymer;

ii) at least one polymerizable monomer A containing one acryloyl group;

iii) at least one polymerizable compound B containing at least two acryloyl groups;

iv) at least one encapsulated free radical initiator; and

v) water; and

c) drying the fastener at temperatures from 15° C. to 120° C. to form a coated fastener.

2. Reciprocally threaded articles having their respective threads bonded together by the cured product of an aqueous-based composition having been comprised of:

i) at least one carboxyl group containing (co)polymer;

ii) at least one polymerizable monomer A containing one acryloyl group;

iii) at least one polymerizable compound B containing at least two acryloyl groups;

iv) at least one encapsulated free radical initiator; and

v) water.

3. A method for sealing and threadlocking a reciprocally threaded article, steps of which include:

a) applying to at least one part of a threaded fastener an aqueous-based composition comprising:

i) at least one carboxyl group containing (co)polymer;

ii) at least one polymerizable monomer A containing one acryloyl group;

iii) at least one polymerizable compound B containing at least two acryloyl groups;

iv) at least one encapsulated free radical initiator; and

v) water;

b) drying the threaded fastener at temperatures from 15° C. to 120° C. to form a coated fastener;

c) engaging the thread of the coated fastener with reciprocal thread of a receiver to form a reciprocally threaded article, wherein the threads of the reciprocally threaded article are bonded together by the cured product of the aqueous-based composition.

4. A process of using an aqueous-based composition for sealing or coating threaded fasteners or for threadlocking reciprocally threaded articles, steps of which comprise:

a) providing unassembled threaded fasteners; and

b) providing to thread of the unassembled threaded fasteners an aqueous-based composition comprising:

i) at least one carboxyl group containing (co)polymer;

ii) at least one polymerizable monomer A containing one acryloyl group;

iii) at least one polymerizable compound B containing at least two acryloyl groups, to form a threaded fasteners assembly;

iv) at least one encapsulated free radical initiator; and

v) water; and

c) exposing the threaded fasteners to conditions favorable to cure the aqueous-based composition.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2015
From: HENKEL AG & CO. KGAA
To: HENKEL IP & HOLDING GMBH
Reel/Frame 036585/0607 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 20, 2015
From: WROBEL, PETER
To: HENKEL IRELAND LIMITED
Reel/Frame 036131/0876 →
MERGER Recorded Jul 20, 2015
From: HENKEL IRELAND LIMITED
To: HENKEL AG & CO. KGAA
Reel/Frame 036132/0509 →
Continuity (3)
Division 13451588 · Apr 20, 2012
Continuation PCTEP2009064000 · Oct 23, 2009
Related Publication 20140182772A1 · Jul 3, 2014