Reference

Dependence of the properties of plasticized PVC on the chemisorption of auxiliary substances on calcium carbonate

Dependence of the properties of plasticized PVC on the chemisorption of auxiliary substances on calcium carbonate. Janczak, Wladyslaw (Inst. Technol. Chem. Eng., Acad. Tech. Agric., Bydgoszcz, Pol.). Angew. Makromol. Chem., 116, 29-40 (German) 1983. CODEN: ANMCBO. ISSN: 0003-3146. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) The strength and processability of plasticized, CaCO3-filled PVC [9002-86-2] depend on the amt. of stearin [11099-07-3] and dibasic Pb stearate [56189-09-4] added. The effect of stearin is the same, regardless of whether it is used to modify the CaCO3 surface or as a PVC additive. Strength is max. when ~50% of the CaCO3 surface is covered with additives.

Stabilized dust-free compounds

Stabilized dust-free compounds. Jungk, Axel Ekkehard; Peter, Wolfram (Ger. ). Braz. Pedido PI BR 7507319 3 Aug 1976,20 pp. (Portuguese). (Brazil). CODEN: BPXXDX. CLASS: IC: C08K003-24. PRIORITY: DE 74-2452795 7 Nov 1974. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Section cross-reference(s): 59 Basic lead salts of inorg. acids are mixed and granulated with lead salts of org. acids and solid lubricants to provide dust-free heat stabilizer compns. which can be compounded with halogenated vinyl polymers at reduced temp. and without decompn. The dust-free granular compns. eliminated the health hazards involved in processing lead stabilizers. A compn. contg. tribasic lead sulfate [12202-17-4] 47.00, dibasic lead stearate [56189-09-4] 18.60, calcium stearate [1592-23-0] 13.40, stearyl stearate [2778-96-3] (m. 55.degree.) 15.3, and partially sapon. wax ester (m. 89.degree.) 5.7 parts was mixed at 11 rpm. and 11.degree. and cooled by mixing at 8 rpm and 13.degree. to give granules which were blended with polymer at .ltoreq.120.degree..