Overview         Company Products          What's New         Feedback

 

































































































































































 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Previous Page


© Qualitech Chemical Corporation 2000

Rubber Chemicals
Product line
 
Specialty chemicals

Qualinization activators / Fillers

 Zinkoxyd aktiv and Zinc Oxide Transparent are highly effective Qualinization activators. Increasing their  loading increases the activity of the Qualinization system. Also effective as light-colored reinforcing fillers.  For highly elastic or transparent Qualinizates, sulfur-free rubber goods cured with metal oxides and  articles for food contact applications.
 Qualisil S and Qualisil N are used mainly for hard, transparent, light or colored rubber goods and as  ingredients of RFS bonding systems.
 Qualisil C and Qualisil A1 are not suitable for transparent articles.

Product Chemical composition Density (g/cm3) BET surface area (m2/g) pH Supply form
Zinkoxyd aktiv® fine particles of precipitated zinc oxide, 
PbO content approx. 5 ppm 
ZnO content greater equal 93 %
5.0 45 10 2
Zinc Oxide Transparent fine particles of precipitated basic zinc carbonate, 
PbO content approx. 5 ppm 
ZnO content 70-74 % 
3.5 45 10 2
Qualisil® S reinforcing, precipitated silica 2.0 155-195 5.4-7.0 2, 12
Qualisil® N reinforcing, precipitated silica 2.0 105-145 6.3-7.5 2, 12
Qualisil® C precipitated silica with a medium reinforcing effect 2.0 40-60 8.3-9.7 2
Qualisil® A1 precipitated sodium aluminum silicate with a medium reinforcing effect 2.0 45-75 10.6-12.0 2

Peptizing agent

 Highly effective non-dusting chemical formulation for reducing mastication times substantially, thus  increasing mixing capacity and reducing costs.
 Renacit 11/WG is particularly recommended as a peptizer for NR but is also suitable for SR. Renacit  11/WG is mainly used for mastication in internal mixers or mixing mills in the presence or absence of  carbon black.

Product Chemical composition International abbreviation Density (g/cm3) Initial melting point (°C) Supply form
Renacit® 11/WG 1 2,2'-dibenzamidodiphenyl disulfide with activating additive and binder DBD 1.4 partly fusible 14

 1) This product is marketed by Bayer International SA, CH-1701 Fribourg, Switzerland


Synthetic plasticizers

 For improving the low temperature flexibility and resilience of Qualinizates. Some of these plasticizers also  improve the processing properties and tack of compounds. Others additionally improve the hot air  resistance of the Qualinizates. For technical goods based on natural or synthetic rubber (especially NBR  or CR) e. g. hoses and seals for vehicles, aircraft and machinery in general, molded and extruded articles,  roll covers, conveyor and transmission belting, cable sheathing and proofings.

Product Chemical composition International abbreviation Density (g/cm3, 20 °C) Refractive index 
(nD 20 °C)
Supply form
Qualinol® OT ether thioether - 0.94-0.98 1.471-1.477 1
Qualinol® 88 methylenebis-(thioglycolic acid butyl ester) - 1.08-1.12 1.485-1.495 1
Qualinol® 85 ether thioether - 1.02-1.07 1.468-1.473 1
Qualinol® 81 mixture of thioesters and carboxylic esters - 0.97-0.99 1.470-1.480 1
Qualinol® FH 1 aromatic polyether - 1.04-1.08 2 1.565-1.575 2 1
Disflamoll® DPK 3 diphenyl cresyl phosphate DPCF 1.20-1.21 1.562-1.564 1
Disflamoll®DPO 3 diphenyl octyl phosphate DPOF 1.08-1.09 1.507-1.510 1
Disflamoll® TOF 3 trioctyl phosphate TOF 0.92-0.93 1.442-1.445 1
Disflamoll® TKP 3 tricresyl phosphate TCF 1.17-1.19 1.557-1.560 1
Adimoll® BO 3 benzyloctyl adipate BOA 0.99-1.01 1.479-1.482 1
Unimoll® BB 3 butyl benzyl phthalate BBP 1.12-1.13 1.539-1.542 1
Mesamoll® 3 alkyl sulfonic acid ester of phenol ASE 1.04-1.07 1.496-1.502 1
Ultramoll® III 3 polyadipates - 1.10-1.11 2 1.469-1.470 1
Ultramoll® PP 3 polyphthalate - 1.039-1.041 1.502-1.504 1

 1) This product is marketed by Bayer International SA, CH-1701 Fribourg, Switzerland
 2) at 50 °C
 3) This product is marketed by the Specialty Products Business Group, Bayer AG


Bonding agents

 Desmodur RE and RFE are reactive isocyanates which give very stable bonds between rubber and fabrics  or metals and are suitable for natural rubber and almost all commonly used synthetic rubbers except  silicone rubber.
 Cohedur A and H 30 act as methylene donors and Cohedur RS and RK as resorcinol components in  three-component bonding systems (resorcinol, methylene donor and reinforcing silica).
 For the manufacture of compounds for bonding textiles, metal cord, glass fabrics and glass cord to rubber.  Suitable for all types of rubber except silicone rubber.

Product Chemical composition International abbreviation Density (g/cm3) Supply form
Desmodur® RE 1 27 % solution of triphenyl methane triisocyanate in ethyl acetate - approx. 1.0 1
Desmodur® RFE 1 27 % solution of thiophosphoric acid tris-(p-isocyanatophenyl) ester in ethyl acetate - approx. 1.0 1
Cohedur® A 100 hexamethylolmelamine ether - 1.2 1
Cohedur® A 150 Cohedur A 100, 50 % filler - 1.6 2
Cohedur® A 250 hexamethylolmelamine ether (Cohedur A 200), 50 % filler - 1.6 2
Cohedur® H 30 hexamethylene tetramine (HMT) with approx. 3 % amorphous silica - 1.3 2
Cohedur® RL 45.5 % resorcinol / 45.5 % Cohedur A 100 / 9 % dibutyl phthalate - 1.2 1
Cohedur® RS homogeneous solidified melt of resorcinol and stearic acid in the ratio 2 : 1 - 1.19 10
Cohedur® RK resorcinol derivative on filler in the ratio 1 : 1 - 1.55 2

 1) This product is marketed by the Coatings, Colorants and Special Raw Materials Business Group,
     Bayer AG


Blowing agents

 Good dispersion and gas formation at high temperatures. Very high processing safety and
 uniform cell structure.
 Porofor TSH, Genitron ACR, Genitron ER 75 and Porofor ADC/M-C1 used for odorless, porous articles  (sponge rubber, closed-cell sponge rubber and microcellular rubber). Porofor ADC/M-C1 is particularly  suitable for articles which are Qualinized at higher temperatures. A number of low-dust grades
 
are available.
 Genitron is a registered trademark of Bayer AG. It may not be used in Japan or North and South America.  In these areas, the product is available under the trademark Ficel.

Product Chemical composition International abbreviation Decomposition temperature (°C) Gas yield (ml/g) Supply form
product compound
Porofor® TSH powder 1 toluene sulfonyl hydrazide TSH min. 105 from 85 approx. 120 2
Porofor® TSH 75 1 75 % toluene sulfonyl hydrazide (solid content), 25% paraffinic mineral oil - min. 105 from 85 approx. 84 15
Genitron® OB 1 oxy-bis (benzene sulphonyl hydrazide) - min. 155 approx. 140-160 approx. 125 2
Genitron® EO-75 1 oxy-bis (benzene sulfonyl hydrazide) / EP rubber - min. 155 
(active ingredient)
approx. 140-160 approx. 95 4
Porofor® ADC/M-C1 1 azodicarbonic acid diamide formulation ADC min. 210 approx. 160-170 approx. 220 3
Porofor® ADC/L-C2 1 azodicarbonic acid diamide ADC min. 210 approx. 160-170 approx. 220 3
Genitron® E2-75 1 azodicarbonic acid diamide / EP rubber - min. 210 
(active ingredient)
approx. 160-170 approx. 165 4
Genitron® E4-75 1 azodicarbonic acid diamide / EP rubber - min. 210 
(active ingredient)
approx. 160-170 approx. 165 4
Genitron® AC2M 1 oil-extended azodicarbonic acid diamide ADC min. 200 approx. 160-170 approx. 220 2
Genitron® ACR 1 azodicarbonic acid diamide / toluene sulfonyl hydrazide - typically 202 
TSH 105
approx. 150-170 approx. 175 2
Genitron® EE-75 1 azodicarbonic acid diamide / oxy-bis (benzene sulfonyl hydrazide) / EP rubber - - approx. 150-180 approx. 105 5
Genitron® ER 75 1 azodicarbonic acid diamide / toluene sulfonyl hydrazide / EP rubber - typically 202 
TSH 105
approx. 150-170 approx. 130 5