Anaerobic paste compositions

Patent metadata

Field	Value
Publication number	US-11286382-B2
Application number	US-202017060675-A
Country	US
Kind code	B2
Filing date	Oct 1, 2020
Priority date	May 29, 2018
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

Anaerobic paste compositions and uses are disclosed. The anaerobic paste compositions remain stable at room temperature for a prolong time without phase separating, making these compositions particularly well suited for long term storage and exposure to extreme temperatures as anaerobic tubular thread sealants compositions.

First claim

I claim:

1. An anaerobic paste composition comprising:
a) an acrylate;
b) a plasticizer;
c) a curing agent; and
d) a mixture of rheology modifiers of cetyl alcohol and a plurality of synthetic mica fillers having jagged edges with flattened geometric polyhedron shapes.

2. The anaerobic paste composition of claim 1 , wherein the anaerobic paste composition is free of any naturally occurring mica fillers.

3. The anaerobic paste composition of claim 1 , wherein the acrylate is difunctional (meth)acrylate.

4. The anaerobic paste composition of claim 3 , wherein the difunctional (meth)acrylate is selected from the group consisting of polyethylene glycol di(meth)acrylates, di(meth)acrylates, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, dipropylene glycol dimethacrylate, di-(pentamethylene glycol) dimethacrylate, tetraethylene diglycol diacrylate, tetramethylene dimethacrylate, ethylene dimethacrylate, neopentyl glycol diacrylate, bisphenol-A mono and di(meth)acrylates, and mixtures thereof.

5. The anaerobic paste composition of claim 4 , wherein the difunctional (meth)acrylate is polyethylene glycol di(meth)acrylates.

6. The anaerobic paste composition of claim 1 , wherein the plasticizer is selected from the group consisting of trimelliates, maleates, organophosphates, glycol, polyether, and mixtures thereof.

7. The anaerobic paste composition of claim 1 , wherein the plasticizer is tetraethylene glycol dioctanoate.

8. The anaerobic paste composition of claim 1 , wherein the curing agent is a free radical initiator, free radical co-accelerator, an inhibitor, a free radical stabilizer or a chelator.

9. The anaerobic paste composition of claim 1 , wherein the rheology modifier further comprises propoxylated bisphenol-A fumarate, bisphenol-A fumarate polyester resin or fumed silica.

10. The anaerobic paste composition of claim 1 further comprising an additive selected from the group consisting of antioxidants, colorant, stabilizers, and mixtures thereof.

11. The anaerobic paste composition of claim 1 comprising:
a) about 15 to about 35 wt % of the acrylate;
b) about 1 to about 10 wt % of the plasticizer;
c) about 0.2 to about 20 wt % of the curing agent; and
d) about 20 to about 90 wt % of the mixture of rheology modifier.

12. An article of manufacture comprising the anaerobic paste composition of claim 1 .

13. The article of claim 12 , wherein the article comprises a tubular thread.

14. The article of claim 12 , wherein the article comprises a fastener selected from the group consisting of nuts, bolts, rods, pins, collars, studs, pipes and anchors.

Assignees

• Henkel IP & Holding GmbH
• Henkel Ag & Co Kgaa

Inventors

• Grismala Roger J

Classifications

• C08L33/00

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers · CPC title

• C09K3/10

  {Materials in mouldable or extrudable form} for sealing or packing joints or covers (filling pastes C09D5/34) · CPC title

• C08K5/103

  with polyalcohols · CPC title

• C08K3/36

  Silica · CPC title

• C08K3/22

  of metals · CPC title