Dispensable grease sealants, method for producing same, crimp connection, method for producing same, and use of the dispensable grease sealants

Patent metadata

Field	Value
Publication number	US-11855401-B2
Application number	US-202016902580-A
Country	US
Kind code	B2
Filing date	Jun 16, 2020
Priority date	Jun 27, 2019
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

A dispensable grease sealant includes a base component in an amount of 50 wt % or more, based on a total weight of the sealant, and a thickener. The base component is selected from a group including a silicone wax, a liquid rubber, and a combination thereof.

First claim

What is claimed is:

1. A dispensable grease sealant, comprising:
a base component in an amount of 50 wt % or more, based on a total weight of the sealant, the base component including a silicone wax and a liquid rubber, the silicone wax having at least one of a melting or softening temperature of 35° C. or higher, the at least one of the melting or softening temperature is equal to or lower than a dispensing temperature of 50° C. to 200° C.;
a thickener; and
a plurality of compressible rubber particles including at least one of a plurality of silicone microspheres or a plurality of hybrid silicone microspheres.

2. The dispensable grease sealant of claim 1 , wherein the amount of the base component is 95 wt % or more.

3. The dispensable grease sealant of claim 1 , wherein the plurality of compressible rubber particles each have a particle diameter less than 500 μm.

4. The dispensable grease sealant of claim 1 , wherein the silicone wax is a methylsiloxane polymer, the silicone wax has a viscosity at 25° C. and at a shear rate of 0.1 s −1 of 1000 Pa·s or more, and/or a viscosity at 100° C. at a shear rate of 0.1 s −1 of 1000 Pa·s or less.

5. A dispensable grease sealant, comprising:
a base component including a silicone wax and a liquid rubber, wherein the silicone wax is a methylsiloxane polymer having at least one of a viscosity at 25° C. and at a shear rate of 0.1 s −1 of 1000 Pa·s or more, or a viscosity at 100° C. at a shear rate of 0.1 s −1 of 1000 Pa·s or less;
a thickener; and
a plurality of compressible rubber particles including at least one of a plurality of silicone microspheres or a plurality of hybrid silicone microspheres.

6. The dispensable grease sealant of claim 5 , wherein an amount of the base component is 95 wt % or more based on a total weight of the sealant.

7. The dispensable grease sealant of claim 5 , wherein the plurality of compressible rubber particles each have a particle diameter less than 500 μm.

8. The dispensable grease sealant of claim 5 , wherein a viscosity of the sealant is dependent on a shear rate, the viscosity at 25° C. at a shear rate of 0.1 s −1 is 1000 Pa·s or more and at a shear rate of 1000 s −1 is 100 Pa·s or less.

9. The dispensable grease sealant of claim 8 , wherein the viscosity of the sealant at 100° C. at a shear rate of 0.1 s −1 is 10 Pa·s or more and at a shear rate of 1000 s −1 is 10 Pa·s or less.

10. The dispensable grease sealant of claim 5 , wherein the base component is thixotropic at 25° C. and at a dispensing temperature, the dispensing temperature is 50° C. to 200° C.

11. The dispensable grease sealant of claim 5 , wherein the silicone wax has a melting and/or softening temperature of 35° C. or higher, the melting and/or softening temperature is equal to or lower than a dispensing temperature of 50° C. to 200° C.

12. The dispensable grease sealant of claim 5 , wherein the thickener is selected from a group including inorganic fillers, organic fillers, metal components, or any combination thereof.

13. The dispensable grease sealant of claim 5 , further comprising a wax additive, the wax additive selected from a group including a plant- or animal-derived wax, a petroleum-derived wax, a synthetic wax, or any combination thereof.

14. The dispensable grease sealant of claim 13 , wherein the base component and the wax additive are immiscible or only partially miscible at 25° C., the base component and the wax additive are miscible at a dispensing temperature of 50° C. to 200° C.

15. A dispensable grease sealant, comprising:
a base component including a silicone wax and a liquid rubber;
a thickener; and
a plurality of compressible rubber particles including a plurality of silicone microspheres having a particle diameter in a range of 5 μm to 250 μm.

16. The dispensable grease sealant of claim 15 , wherein an amount of the base component is 95 wt % or more based on a total weight of the sealant.

17. The dispensable grease sealant of claim 16 , wherein the particle diameter is in a range of 10 μm to 100 μm.

18. The dispensable grease sealant of claim 15 , wherein the silicone wax has at least one of a melting or softening temperature of 35° C. or higher, the at least one of the melting or softening temperature is equal to or lower than a dispensing temperature of 50° C. to 200° C.

Assignees

• Te Connectivity Germany Gmbh
• Te Connectivity Corp
• Te Connectivity Solutions Gmbh

Inventors

• Wang Lei
• Sachs Soenke
• Gao Ting
• Tao Dejie
• Schmidt Helge

Classifications

• H01R4/70 Primary

  Insulation of connections (end caps H01R4/22) · CPC title

• C08G77/442

  containing vinyl polymer sequences · CPC title

• C08K3/36

  Silica · CPC title

• C08L23/145

  with monomers having two or more carbon-to-carbon double bonds · CPC title

• C08L83/10

  Block- or graft-copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C08L51/08, C08L53/00) · CPC title