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Curing activators

A technology of vulcanization activator and compound, which can be used in transportation and packaging, special tires, tire parts, etc.

Inactive Publication Date: 2012-07-18
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Fatty acids are also commonly used as vulcanization activators which, while effective in activating the vulcanization process, can lead to reduced adhesion of the green mix
In fact, by reacting with zinc oxide, fatty acids can produce zinc salts as undesired by-products that tend to migrate towards the surface of the mix, thus reducing the adhesion of the green rubber mix

Method used

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  • Curing activators
  • Curing activators
  • Curing activators

Examples

Experimental program
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Embodiment

[0032] In the following examples, five different compounds (a, b, c, d, e) within the class of vulcanization aids according to the invention were employed.

[0033] The five vulcanization activators are as follows:

[0034] -Molecular formula [(CH 3 ) 3 N(CH 2 ) 8 CHCH(CH 2 ) 7 CH 3 ] + I - Compound (a)

[0035] -Molecular formula [(CH 2 CHCH 2 ) 3 N(CH 2 ) 15 CH 3 ] + Br - Compound (b)

[0036] -Molecular formula [(CH 3 )(CH 2 CHCH 2 ) 2 N(CH 2 ) 15 CH 3 ] + I - Compound (c)

[0037] -Molecular formula [(CH 2 CHCH 2 )(CH 3 ) 2 N(CH 2 ) 15 CH 3 ] + I - Compound (d)

[0038] -Molecular formula [(CH 2 CHCH 2 ) 3 N(CH 2 ) 12 N(CH 2 CHCH 2 ) 3 ] 2 + 2Br - of

[0039] Compound (e)

[0040] By way of example only, the vulcanization activators described above were tested with TBB S and DPG accelerators as described below.

[0041] –TBB S Compounds–

[0042] Ten kinds of rubber compounds were prepared (A 1 、A 2 , B 1 , B 2 、C 1 ...

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Abstract

Use of compounds of molecular formula (I) as curing activators of mixes having a cross -linkable unsaturated- chain polymer base; ( [R1R2R3NR5 (NR4R6R7) n] (n+1) + )y (n+l)Xy~ (D where : X is an anionic atom or group R1, R2 and R3, which may be the same or different, are each CmH2m+1, where m ranges between 1 and 3, or CH2CHCH2 or CHCHCH3 R4, R6 and R7, which may be the same or different, are each CH2CHCH2 or CHCHCH3 n is 0 or 1 y is 1 when n is 1; y is 1 or 2 when n is 0 R5 is an aliphatic group C15-C22 when n is 0; and is an aliphatic group C8-C16 when n is 1 when n is 0, at least one of R1, R2, R3 and R5 comprises a double bond.

Description

technical field [0001] The present invention relates to curing activators. Background technique [0002] To achieve specific results, rubber compound vulcanization requires special additives, including vulcanization activators and accelerators. [0003] In some industrial applications where rapid vulcanization is required, highly effective booster accelerators are used. [0004] Some of these are currently under fire for health reasons. [0005] Fatty acids are also commonly used as vulcanization activators which, while effective in activating the vulcanization process, can lead to reduced adhesion of the green mix. In fact, by reacting with zinc oxide, fatty acids can produce zinc salts as undesirable by-products tending to migrate towards the surface of the mix, thus reducing the adhesion of the green rubber mix. [0006] There is therefore a need to explore new vulcanization activator systems designed to ensure rapid vulcanization while limiting the use of fatty acids....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/19
CPCC08K5/09C08K5/19B60C1/00C08L21/00
Inventor S·科图尼奥P·史达菲尔B·赛奇
Owner BRIDGESTONE CORP