Cable gummed in situ and containing a gumming composition that contains a corrosion inhibitor

Patent metadata

Field	Value
Publication number	US-10378148-B2
Application number	US-201515317629-A
Country	US
Kind code	B2
Filing date	Jun 11, 2015
Priority date	Jun 12, 2014
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

A cord rubberized in situ (C). Internal layer of the cord (CT1) comprises N1 internal thread(s). External layer of the cord (CT3) comprises N3 external threads wound helically around the internal layer of the cord. Rubber composition (20) is positioned between the internal layer of the cord and the external layer of the cord, and comprises a compound of formula (I) or a salt of this compound:

in which: each R1, R2 and R3 group represents, independently of one another, an alkylene, arylene, arylalkylene, alkylarylene or cycloalkylene group, each X 1 and X 2 group represents, independently of each other, —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) with R and R′ representing, independently of each other, hydrogen or an alkyl group, and X 3 comprises at least one —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) group with R and R′ representing, independently of each other, hydrogen or an alkyl group.

First claim

The invention claimed is:

1. A single-strand cord rubberized in situ comprising:
an internal layer of the cord comprising N1 internal thread(s);
an external layer of the cord comprising N3 external threads wound helically around the internal layer of the cord;
a rubber composition positioned between the internal layer of the cord and the external layer of the cord;
wherein the rubber composition comprises a compound of formula (I) or a salt of this compound:

wherein:
each R1, R2 and R3 group represents, independently of one another, an alkylene, arylene, arylalkylene, alkylarylene or cycloalkylene group,
each X 1 and X 2 group represents, independently of each other, —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) with R and R′ representing, independently of each other, hydrogen or an alkyl group, and
X 3 comprises at least one —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) group with R and R′ representing, independently of each other, hydrogen or an alkyl group.

2. The single-strand cord rubberized in situ according to claim 1 , wherein X 3 represents —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) with R and R′ representing, independently of each other, hydrogen or an alkyl group.

3. The single-strand cord rubberized in situ according to claim 1 , wherein R1=R2.

4. The single-strand cord rubberized in situ according to claim 3 , wherein R1 and R2 represent an alkylene group.

5. The single-strand cord rubberized in situ according to claim 1 , wherein R1=R2=R3.

6. The single-strand cord rubberized in situ according to claim 5 , wherein R1, R2 and R3 represent an alkylene group.

7. The single-strand cord rubberized in situ according to claim 1 , wherein X 1 =X 2 .

8. The single-strand cord rubberized in situ according to claim 7 , wherein X 1 and X 2 represent a —PO(OR)(OR′) group with R and R′ representing, independently of each other, hydrogen or an alkyl group.

9. The single-strand cord rubberized in situ according to claim 1 , wherein X 3 comprises at least one —COOH group.

10. The single-strand cord rubberized in situ according to claim 9 , wherein X 3 represents —COOH.

11. The single-strand cord rubberized in situ according to claim 1 , wherein the rubber composition is present in each of the capillaries located between the N1 internal thread(s) of the internal layer and the N3 external threads of the external layer.

12. The single-strand cord rubberized in situ according to claim 1 , comprising an intermediate layer of the cord comprising N2 intermediate threads wound helically around the internal layer of the cord, the N3 external threads of the external layer of the cord being wound helically around the intermediate layer of the cord.

13. The single-strand cord rubberized in situ according to claim 12 , wherein the rubber composition is present in each of the capillaries located between the N1 internal thread(s) of the internal layer and the N2 intermediate threads of the intermediate layer.

14. The single-strand cord rubberized in situ according to claim 12 , wherein the rubber composition is present in each of the capillaries located between the N2 intermediate threads of the intermediate layer and the N3 external threads of the external layer.

15. A multistrand rope rubberized in situ, comprising at least one strand which is the single-strand cord rubberized in situ according to claim 1 .

16. The multistrand rope rubberized in situ according to claim 15 , comprising:
an internal layer of the rope comprising T1 internal strand(s);
an external layer of the rope comprising T2 external strands wound helically around the internal layer of the rope; and
at least one of the internal and/or external strands being said single-strand cord rubberized in situ.

17. The multistrand rope rubberized in situ according to claim 16 , wherein each external strand is said single-strand cord rubberized in situ.

18. The multistrand rope rubberized in situ according to claim 16 , wherein each internal strand is said single-strand cord rubberized in situ.

19. The multistrand rope rubberized in situ according to claim 16 , comprising a rubber composition positioned between the internal layer of the T1 internal strand(s) of the rope and the external layer of the T2 external strands of the rope, the rubber composition comprising a compound of formula (I) or a salt of this compound:

wherein:
each R1, R2 and R3 group represents, independently of one another, an alkylene, arylene, arylalkylene, alkylarylene or cycloalkylene group,
each X 1 and X 2 group represents, independently of each other, —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) with R and R′ representing, independently of each other, hydrogen or an alkyl group, and
X 3 comprises at least one —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) group with R and R′ representing, independently of each other, hydrogen or an alkyl group.

20. A multistrand rope rubberized in situ, comprising:
an internal layer of the rope comprising T1 internal strand(s);
an external layer of the rope comprising T2 external strands wound helically around the internal layer of the rope;
a rubber composition positioned between the internal layer of the rope and the external layer of the rope, the rubber composition comprising a compound of formula (I) or a salt of this compound:

wherein:
each R1, R2 and R3 group represents, independently of one another, an alkylene, arylene, arylalkylene, alkylarylene or cycloalkylene group,
each X 1 and X 2 group represents, independently of each other, —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) with R and R′ representing, independently of each other, hydrogen or an alkyl group, and
X 3 comprises at least one —COOH, —CO—NH—OH, —SOOH, —PO(OR)(R′) or —PO(OR)(OR′) group with R and R′ representing, independently of each other, hydrogen or an alkyl group.

21. A tire comprising a single-strand cord rubberized in situ according to claim 1 .

22. A tire comprising a multistrand rope rubberized in situ according to claim 15 .

23. The single-strand cord rubberized in situ according to claim 3 , wherein R1 and R2 represent a methylene group.

24. The single-strand cord rubberized in situ according to claim 5 , wherein R1, R2 and R3 represent a methylene group.

25. The single-strand cord rubberized in situ according to claim 1 , wherein X 1 and X 2 represent a —PO(OR)(OR′) group with R and R′ representing, independently of each other, hydrogen or —PO 3 H.

Assignees

• Michelin & Cie
• Michelin Rech Tech

Inventors

• Belin Lionel
• Salgues Nathalie
• Noel Sébastien

Classifications

• D07B2201/2062

  comprising fillers · CPC title

• D07B1/0633

  having a multiple-layer configuration · CPC title

• D07B2201/2077

  having an anti-corrosive function · CPC title

• D07B1/0613 Primary

  the reinforcing cords being characterised by the rope configuration · CPC title

• D07B1/0626

  the reinforcing cords consisting of three core wires or filaments and at least one layer of outer wires or filaments, i.e. a 3+N configuration · CPC title