AQUEOUS-BASED COMPOSITION SUITABLE FOR USE IN THREADLOCKING APPLICATIONS

• US 20140182772A1
• Filed: 03/05/2014
• Published: 07/03/2014
• Est. Priority Date: 10/23/2009
• Status: Active Grant

• Current Assignee: Henkel IP & Holding GmbH (Henkel AG & Co KGaA)
• Original Assignee: Henkel IP & Holding GmbH (Henkel AG & Co KGaA)
• Inventors: Wrobel, Peter
• Granted Patent: US 8,999,092 B2
• Time in Patent Office: Days
• US Class Current: 156/91
• CPC Class Codes: C08F 2/10 Aqueous solvent
• CPC Class Codes: C08F 220/16 of phenols or of alcohols containing two or more carbon atoms
• CPC Class Codes: C08F 220/18 with acrylic or methacrylic acids
• CPC Class Codes: C08F 220/1808 C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
• CPC Class Codes: C08F 220/1811 C10or C11-(Meth)acrylate, e.g. isodecyl (meth)acrylate, isobornyl (meth)acrylate or 2-naphthyl (meth)acrylate
• CPC Class Codes: C08F 222/10 Esters
• CPC Class Codes: C08F 222/1025 of aromatic dialcohols
• CPC Class Codes: C08F 230/085 the monomer being a polymerisable silane, e.g. (meth)acryloyloxy trialkoxy silanes or vinyl trialkoxysilanes
• CPC Class Codes: C08F 265/02 on to polymers of acids, salts or anhydrides
• CPC Class Codes: C08F 290/067 Polyurethanes; Polyureas
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/24 Graft or block copolymers according to groups C08L51/00, C08L53/00 or C08L55/02; Derivatives thereof
• CPC Class Codes: C09D 151/00 Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds based on ABS polymers C09D155/02; Coating compositions based on derivatives of such polymers
• CPC Class Codes: F16B 39/225 by means of a settable material

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

1-11. -11. (canceled)

12. 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.

13. 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.

14. 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.

15. 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.

16-17. -17. (canceled)