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Antidegradants
Non-staining antioxidants
Protection against oxygen, heat and unorientated crack formation
(crazing). To some extenteffective against fatigue and poisoning by
heavy metals. Staining absent or minimal. No contactstaining. For
white, light-colored or transparent goods, e.g. dipped articles,
fabric proofings,technical rubber and latex goods. Vulkanox BHT
suitable for rubber goods produced by thesolution dipping
process.
Product Chemical compositionInternationalabbreviation
Density
(g/cm3)
Initialmelting
point(C)
SupplyForm
Additionalinformation
Vulkanox BHT 2,6-di-tert-butyl-4-methylphenol BHT 1.0
solidification
point approx.
69
11
This product is marketed
by the Basic and Fine
Chemicals Business
Group, Bayer AG
Vulkanox BKF2,2'-methylene-bis- 4-methyl-6-
tert.-butylphenol)BPH 1.0 min. 124 2
This product is marketed
by the Basic and Fine
Chemicals Business
Group, Bayer AG
Vulkanox DS/F
mixture of alkyl and aralkyl-
substituted phenols, solidified
with inorganic fi l ler
- 1.3 - 2
Vulkanox DSmixture of alkyl and aralkyl-
substituted phenols- 0.9 - 1
VulkanoxMB 2 /MGC
4- and 5-methyl-2-
mercaptobenzimidazoleMMBI 1.3
approx. 290,
with
decomposition
8
Used mainly for heat-
resistant thiuram-cured
goods. Synergist with
other antioxidants.
VulkanoxMB 2 /MG
4- and 5-methyl- 2-
mercaptobenzimidazoleMMBI 1.3
approx. 290,
with
decomposition
7
Used mainly for heat-
resistant thiuram-cured
goods. Synergist with
other antioxidants.
Vulkanox MB/MG 2-mercaptobenzimidazole MBI 1.4
approx. 290,
with
decomposition
7
Used mainly for heat-
resistant thiuram-cured
goods. Synergist with
other antioxidants.
Vulkanox SKFsterically hindered polynuclear
phenol - 1.1 min. 105 2
This product is marketed
by Bayer International
SA, CH-1701 Fribourg,
Switzerland.
Vulkanox SP mixture of styrenated phenols SPH 1.1 - 1
VulkanoxZMB 2 /C5
zinc-4- and -5-methyl- 2-
mercapto-benzimidazoleZMMBI 1.5
approx. 300,
with
decomposition
3
Used mainly for heat-
resistant thiuram-cured
goods. Synergist with
other antioxidants.
Non-staining antiozonants
Antiozonants for light-colored and black-containing vulcanizates
which must not stain throughcontact.
Product
Chemicalcomposition
Internationalabbreviation
Density
(g/cm3)
Initial meltingpoint(C)
SupplyForm
Additionalinformation
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VulkazonAFD
enol ether - 1.0 - 1
VulkazonAFS/LG
cyclic acetal - 1.1 min. 85 6
Staining antioxidants with antiozonant effects
Outstanding protection against dynamic stress, oxidation, heat,
ozone and rubber poisons; theseantioxidants cause severe staining.
For car, truck and earthmover tires, technical goods subjected to
dynamic stress, cable sheathingand insulation, inner tubes and roll
covers.
ProductChemical
compositionInternationalabbreviation
Density
(g/cm3)
Initialmelting
point(C)
SupplyForm
Additionalinformation
Vulkanox 3100mixture of diaryl-p-
phenylenediaminesDTPD 1.2 min. 95 10
Vulkanox 4010 NA/LGN-isopropyl-N'-phenyl-p-
phenylenediamineIPPD 1.1 min. 76 6
Vulkanox 4020 liquid
N-(1,3-dimethylbutyl)-N'-
phenyl-p-
phenylenediamine
6PPD 1.0
solidification
point min.
45
1
Product is also used for
stabil ization in E-SBR
production.
Vulkanox 4020/LG
N-(1,3-dimethylbutyl)-N'-
phenyl-p-
phenylenediamine
6PPD 1.0 min. 45 6
Product is also used for
stabil ization in E-SBR
production.
Vulkanox 4030
N,N'-bis-(1,4-
dimethylpentyl)-p-
phenylenediamine
77PD 0.9 - 1
Vulkanox DPPDN,N'-diphenyl-p-
phenylenediamineDPPD 1.2 min. 135 10
Staining antioxidants without antiozonant effects
Very good protection against oxidation and heat, and good
protection from rubber poisons; staining effects range from medium
to relatively weak. Used in combination with p-phenylenediamines
for heavily stressed technical goods.
ProductChemical
compositionInternationalabbreviation
Density
(g/cm3)
Softeningpoint(C)
SupplyForm
Additional information
Vulkanox HS/LG
2,2,4-trimethyl-1,2-
dihydroquinoline,
polymerized
TMQ 1.1 85 - 95 6
Product is marketed by Bayer
International SA, CH-1701
Fribourg, Switzerland.
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