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DSTDP

A.ntioxidants. PhenoHc antioxidants, added at about 0.1—0.5 phr, are usually chosen from among butylated hydroxytoluene [128-37-0] (BHT), and Nnonylphenol [104-40-5] for Hquid stabilizer formulations and bisphenol A [80-05-7] (2,2-bis-(/)-hydroxyphenyl)propane) for the soHd systems. Low melting thioesters, dilauryl thiodipropionate [123-28-4] (DLTDP) or distearyl thiodipropionate [693-36-7] (DSTDP) are commonly added along with the phenoHcs to enhance their antioxidant performance. Usually a 3 1 ratio of thiodipropionate to phenoHc antioxidant provides the desired protection. Most mixed metal stabilizer products contain the antioxidant iagredient. [Pg.550]

Table 4.24 summarises the main features of solid-state photolysis-GC for polymer/additive analysis. Photolytic degradation products obtained from PE/1 % DLTDP and PE/1 % DSTDP, PMMA/9 % DNP and PVC/19 % DOP were examined [189]. The method has found little follow-up. [Pg.199]

Squirrell [469] has mentioned TLC of commercial polymer additives (Topanol OC, DLTDP, DSTDP, Ionox 330, Irganox 259/288/1010/1076, Nonox WSP, Polygard, Santonox R, Tinuvin 326/327/328, Topanol CA, UV531, Hoechst D 55, oleamide, erucamide, Ethomeen T12, stearic acid, and others). A TLC procedure has also been described for identification of... [Pg.228]

RPLC-UV-MB-MS (dual detection in series) with methane Cl mass spectra (m/z 200 to 1200) was first used for identification of AOs and UVAs [523,578] ng quantities of a nine-component additive mixture (BHT, Santowhite Powder, Topanol CA, Cyasorb UV531/5411, Irganox 1010/1076, Ionox 330, DSTDP) were detected... [Pg.513]

CHa—CHjj—li—OR)2 + R OH R equals lauryl(DLTDP), or stearyl(DSTDP)... [Pg.224]

Another class of secondary antioxidants used in food contact plastics is thioether. The most common examples used in polypropylene, polystyrene and PVC are thiodipropanoic acid, didodecyl ester (DLTDP) and thiodipropanoic acid, dioctadecyl ester (DSTDP). Thioethers react with hydroperoxides to form sulphoxides as shown in Fig. 10.8. [Pg.245]

CAS Number 693-36-7 RTECS Number UF8010000 Abbreviation DSTDP... [Pg.80]

The antioxidant system investigated is a synergistic syst composed of a phenol, namely, tetrakls[methylene 3-(3, 5 -di-t-butyl-4 -hydroxyphenyl)propionate]methane (Irgcmox 1010) and a sulfur compound, namely, dlstearylthiodipropionate (DSTDP), both added at 0.5 phr to the CPE. The dehydrochlorlnation stabilizers consisted of a bisphenol A epoxy resin (DER331) added at 4 phr concentration and PbO added at 5 phr concentration. The effects of these systems on the dehydrochlorlnation rates of peroxide crosslinked CPE and 2-roercaptoimidazoline crosslinked CPE are shown in Figure 2. [Pg.130]

Irradiation of CPE was carried out on four compounds. These are CPE (Rad 1), CPE with TMPT (Rad 2), CPE with TMPT and antioxidants Irganox 1010 and DSTDP (Rad 3), CPE with TMPT, the... [Pg.142]

See other pages where DSTDP is mentioned: [Pg.337]    [Pg.347]    [Pg.8]    [Pg.35]    [Pg.70]    [Pg.96]    [Pg.97]    [Pg.144]    [Pg.199]    [Pg.250]    [Pg.366]    [Pg.513]    [Pg.765]    [Pg.337]    [Pg.495]    [Pg.509]    [Pg.509]    [Pg.509]    [Pg.509]    [Pg.240]    [Pg.382]    [Pg.394]    [Pg.180]    [Pg.80]    [Pg.80]    [Pg.128]    [Pg.132]    [Pg.133]    [Pg.133]    [Pg.134]    [Pg.134]    [Pg.134]    [Pg.135]    [Pg.135]    [Pg.135]    [Pg.135]    [Pg.135]    [Pg.142]   
See also in sourсe #XX -- [ Pg.80 ]

See also in sourсe #XX -- [ Pg.403 ]

See also in sourсe #XX -- [ Pg.116 ]



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