Reference

Metal salt-containing stabilizer systems for vinyl chloride polymers

Metal salt-containing stabilizer systems for vinyl chloride polymers. Jacob, Uwe; Klaess, Peter; Maedler, Rainer (Ger.Several substances are used for example 84696-56-0 and 3164-85-0 which are their cas registry numbers. Dem. Rep. ). Ger. (East) DD 202864 A1 5 Oct 1983,9 pp. (German). (German Democratic Republic). CODEN: GEXXA8. CLASS: IC: C07C051-41; C07C039-06; C08K005-06; C08F014-06; C08F114-06. APPLICATION: DD 81-236422 30 Dec 1981. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 23 The title stabilizers are prepd. with decreased solvent use by the reaction of excess Group I and/or II metal (hydr)oxides with branched alkanoic acids and/or alkylphenols in the presence of org. phosphites and polyalkylene glycol lubricants and adding esters of 2-hydroxycrotonic and thioglycolic acids and antioxidants. Thus, adding powd. KOH 78.4, Ca(OH)2 88.6, and ZnO 48.85 g (a 6% excess) over 45 min to 2-ethylhexanoic acid 676.8, tripropylene glycol [24800-44-0] 60.9, and paraffin oil (av. C no. 18) 345.1 g stirred at 60°, heated slowly at 9.3-10.66 kPa to 120° with distn. of H2O, adding 648.1 g (PhO)2POC10H21 [3287-06-7], filtering, adding 217.8 g ethylene 2-hydroxycrotonate [89455-19-6] and 2.2 g 2-ethylhexyl thioglycolate [7659-86-1] at 60° to the filtrate and, after 30 min, 110 g BHT gave 2160 g clear, oily liq. contg. Ca 2.18, K 2.48, and Zn 1.7%, which remained clear after 6 mo. .

Cadmium-free, liquid, metal-salt containing stabilizer combination for vinyl chloride polymers

Cadmium-free, liquid, metal-salt containing stabilizer combination for vinyl chloride polymers. Jacob, Uwe; Klaess, Peter; Maedler, Rainer (Ger.Several substances are used for example 84332-98-9 and 31291-42-6 which are their cas registry numbers. Dem. Rep. ). Ger. (East) DD 202886 A1 5 Oct 1983,9 pp. (German). (German Democratic Republic). CODEN: GEXXA8. CLASS: IC: C08K005-09; C08L027-06. APPLICATION: DD 81-236423 30 Dec 1981. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The title compns., which are lubricants as well as heat and light stabilizers, contain Group II metal carboxylates and/or alkylphenoxides, metal derivs. of hydroxycrotonate or thioglycolate esters, org. phosphites, antioxidants, lubricants, and thinners, and are prepd. in the absence of solvents. Thus, a stabilizer compn. was prepd. from Ca(OH)2 66.6, ZnO 24.45, 2-ethylhexanoic acid 273.6, ethylene bis(2-hydroxycrotonate) [89455-19-6] 93.5, 2-ethylhexylmercaptoacetate [7659-86-1] 41.5, and (PhO)2POC10H21 [3287-06-7] 265 g. PVC [9002-86-2] contg. this compn. 1.4, lubricant 0.4, thinner 0.1, BHT 0.1, and DOP 43 phr had thermal stability at 180° 40 min, time to adhesion in calendering at 170° 35 min, and was clear and very light yellow. .