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Zinc mercaptobenzothiazole

Rubber base adhesives can be used without cross-linking. When necessary, essentially all the cross-linking agents normally used in the vulcanization of natural rubber can be used to cross-link elastomers with internal double carbon-carbon bonds. A common system, which requires heat to work, is the combination of sulphur with accelerators (zinc stearate, mercaptobenzothiazole). The use of a sulphur-based cross-linking system with zinc dibutyldithiocarbamate and/or zinc mercaptobenzothiazole allows curing at room temperature. If the formulation is very active, a two-part adhesive is used (sulphur and accelerator are placed in two separate components of the adhesive and mixed just before application). [Pg.640]

Vulcanizing latex adhesives are used in the manufacture of textiles, rugs and carpets. The vulcanizing ingredients are sulphur, zinc oxide and accelerators (for example, zinc dibutyldithiocarbamate and zinc mercaptobenzothiazole to produce vulcanization at room temperature). [Pg.650]

ZINC MERCAPTOBENZOTHIAZOLATE see BHA750 ZINC-2-MERCAPTOBENZOTHIAZOLE see BHA750 ZINC MERCAPTOBENZOTHIAZOLE SALT see BHA750... [Pg.1943]

CAS 155-04-4 EINECS/ELINCS 205-840-3 Synonyms 2(3H)-Benzothiazolethione, zinc salt Bis (2-benzothiazolylthio) zinc Bis (mercaptobenzothiazolato) zinc 2-Mercaptobenzothiazole zinc salt Zinc-2-benzothiazolethiolate Zinc benzothiazolyl mercap-tide Zinc benzothiazol-2-ylthiolate Zinc mercaptobenzothiazolate Zinc mercaptobenzothiazolesalt Zinc mercaptobenzylthiazol ZMBT ZnMB Empirical C,4HsN2S4Zn Formula Zn(C,H4NS2)2 Properties M.w. 397.85... [Pg.1424]

Zinc mercaptobenzothiazole salt Zinc mercaptobenzylthiazol. See Zinc 2-mercaptobenzothiazole... [Pg.1424]

In this study, the degree of autohesion between two layers deposited on the surface of a glass mold was investigated. The Latex blend consisted of (in weight parts) rubber of natural centrifugated latex - 100 sulphur - 2 zinc dimethyldithiocar-bamate - 1 zinc mercaptobenzothiazole - 1 2,2 -methylenebis (6-tert-butyl-4-methylphenol) - 0.5. [Pg.378]

This study investigates how to use accelerators zinc mercaptobenzothiazole, diphenylguanidine, and their combination as a substitute for commonly used zinc diethyl dithiocarbamate in the vulcanisation of NR latex, as dithiocarbamates, being secondary amines, produce harmful N-nitrosamines. Network structures of vulcanisates obtained by these accelerators were characterised through total crosslink density and the distribution of crosslink types, and were related with physical and mechanical properties. 19 refs. [Pg.114]

Cure Characteristics. Methods of natural rubber production and raw material properties vary from factory to factory and area to area. Consequentiy, the cure characteristics of natural mbber can vary, even within a particular grade. Factors such as maturation, method and pH of coagulation, preservatives, dry mbber content and viscosity-stabilizing agents, eg, hydroxylamine-neutral sulfate, influence the cure characteristics of natural mbber. Therefore the consistency of cure for different grades of mbber is determined from compounds mixed to the ACSl formulation (27). The ACSl formulation is as follows natural mbber, 100 stearic acid, 0.5 zinc oxide, 6.0 sulfur, 3.5 and 2-mercaptobenzothiazole (MBT), 0.5. [Pg.269]

Properties of zinc salts of inorganic and organic salts are Hsted in Table 1 with other commercially important zinc chemicals. In the dithiocarbamates, 2-mercaptobenzothiazole, and formaldehyde sulfoxylate, zinc is covalendy bound to sulfur. In compounds such as the oxide, borate, and sihcate, the covalent bonds with oxygen are very stable. Zinc—carbon bonds occur in diorganozinc compounds, eg, diethjizinc [557-20-0]. Such compounds were much used in organic synthesis prior to the development of the more convenient Grignard route (see Grignard reactions). [Pg.419]

There are no known practical peroxide cure systems for the PO—AGE polymers. Apparentiy the peroxide attacks the polymer backbone at a rate that is unfavorably competitive with the cross-linking rate. A typical sulfur cure system consists of zinc oxide [1314-13-2] tetramethylthiuram mono sulfide (TMTM), 2-2-mercaptobenzothiazole [149-30-4] (MBT), and sulfur. A sulfur donor cure system is zinc oxide, di-o-tolylguanidine [97-39-2] (DOTG) and tetramethylthiuram hexasulftde. [Pg.557]

All compositions contain EPDM, 100 phr zinc oxide, 5 phr stearic acid, 1 phr antioxidant, 1 phr 2-mercaptobenzothiazole (accelerator), 1.5 phr tetramethyl thiuram disulfide (accelerator), 1 phr and sulfur, 1.5 phr. [Pg.365]

The second important class of accelerators are zinc dialkyldithiocarbamates (XXI). These are more active with faster vulcanization rates than the 2-mercaptobenzothiazole sulfena-mides. Also, activators are not usually needed since the zinc is incorporated into the accelerator molecule. Tetralkylthiuram disulfides (XXII) in combination with activators S... [Pg.741]

Fig. 13. Relationship of nitrile rubber cure systems where DCP is dicumyl peroxide MBTS, benzothiazyl disulfide ZnDMD, zinc dirnethyldithiocarbamate MBT, mercaptobenzothiazole TMTM, tetramethylthiuram mono sulfide TMTD, tetramethylthiuram disulfide and CBTS, iV-cyclobexyl-2-benzothiazole... Fig. 13. Relationship of nitrile rubber cure systems where DCP is dicumyl peroxide MBTS, benzothiazyl disulfide ZnDMD, zinc dirnethyldithiocarbamate MBT, mercaptobenzothiazole TMTM, tetramethylthiuram mono sulfide TMTD, tetramethylthiuram disulfide and CBTS, iV-cyclobexyl-2-benzothiazole...
Dimethyltetrahydro-l,3,5-thiadiazine-2-thione 2-Mercaptobenzothiazole (as sodium or zinc salt)... [Pg.411]

Mononuclear complex formation was confirmed for the adduct of zinc(II) salt with 2-mercaptobenzothiazole and o-phenanthroline (253). The t/-S coordination is observed in the complexes of triphenylphos-phine gold with 2-mercapto-l-methylimidazole (254) (88JOM119), 8-mercaptotheophilline (255) (91IC3743), 2-mercaptobenzoxazole (256) [94AX(C)1420], and purine-6-thiol (257) (94AJC577). [Pg.41]

After inactivation treatment, the catalyst is removed, and phenolic antioxydants and other stabilizers are added. Cross-linking curing is realized on unsaturated pendant groups. Peroxides are avoided because they cause chain scission and therefore systems with sulfur as cross-linker and zinc oxide, 2-mercaptobenzothiazole and tetramethylthiuram monosulfide as accelerators are used. [Pg.718]

Zn-i IBT 2-MERCAPTOBENZOTHIAZOLE ZINC SALT OXAF PENNAC ZT TISPERSE MB-58 USAF GY-7 VULKACIT ZM ZENITE ZENITE SPECIAL ZETAX ZINC-2-BENZOTHIAZOLETHIOLATE ... [Pg.176]

The synthesis of tazobactam from 6-APA (Scheme 6.15) proceeded via the 2- -(chloromethyl)penam ester (81 a), which was first prepared by Gottstein and co-workers [47] during the synthesis of 2-/S-(chloromethyl)-2-a-methylpenam-3a-carboxylic acid 1,1-dioxide (29). 6-APA (8) was converted to 6a-bromopenicillanic acid (77) by treatment with sodium nitrite and hydrobromic acid. Oxidation with peracetic acid in the presence of benzophenone hydrazone gave benzhydryl 6a-bromopenicillanate-l-oxide (78) and reduction with zinc and acetic acid gave benzhydryl penicillanate-1-oxide (79). The unsymmetrical azetidinone disulphide (80) was obtained by heating with 2-mercaptobenzothiazole reaction with copper (II) chloride... [Pg.330]

See other pages where Zinc mercaptobenzothiazole is mentioned: [Pg.274]    [Pg.274]    [Pg.210]    [Pg.210]    [Pg.65]    [Pg.1424]    [Pg.4754]    [Pg.436]    [Pg.58]    [Pg.265]    [Pg.66]    [Pg.274]    [Pg.274]    [Pg.210]    [Pg.210]    [Pg.65]    [Pg.1424]    [Pg.4754]    [Pg.436]    [Pg.58]    [Pg.265]    [Pg.66]    [Pg.1086]    [Pg.253]    [Pg.788]    [Pg.413]    [Pg.74]    [Pg.81]    [Pg.740]    [Pg.220]    [Pg.253]    [Pg.411]    [Pg.137]    [Pg.1758]    [Pg.197]    [Pg.197]    [Pg.411]   
See also in sourсe #XX -- [ Pg.58 ]

See also in sourсe #XX -- [ Pg.30 , Pg.80 , Pg.135 , Pg.158 ]



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