Detail of "16219-75-3"

Reference

Thermoplastic polymer mixture

Thermoplastic polymer mixture. Batiuk, Martin; Herman, R. M.; Healy, James C. (Goodrich, B. F., Co., USA). Neth. Appl. NL 7511719 12 Apr 1977, 22 pp. (Dutch). (Netherlands). CODEN: NAXXAN. CLASS: IC: C08L023-04. APPLICATION: NL 75-11719 6 Oct 1975. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) The title compns. contained 100 parts EPDM copolymer with undrawn crystallinity 10-20% and heat of melting 6-10 cal/g, 5-400 parts polyethylene (I) [9002-88-4], and 5-300 parts ethylene-vinyl acetate copolymer (II) [24937-78-8], and had better phys. properties than mixts. from EPDM copolymers of lower crystallinity. Thus, 100 parts ethylene-propylene-5-ethenyl-2-norbornene copolymer [16219-75-3] with d. 0.86 g/cm3, crystallinity 12.9%, and heat of melting 8.4 cal/g, was mixed with 33 parts I and 33 parts II, giving a compn. with tensile strength 172.2 kg/cm2 and elongation 720%. A control compn. from an EPDM with crystallinity 4.1% and heat of melting 2.2 cal/g gave values of 44.8 kg/cm2 and 770%, resp.

Hydrocarbon recovery in EPDM manufacture

Hydrocarbon recovery in EPDM manufacture. DiLiddo, Bart A. (Montedison S.p.A., Italy). Ital. IT 932253 15 Nov 1972, 18 pp. (Italian). (Italy). CODEN: ITXXAX. APPLICATION: IT 19710409. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) Oligomers and solvents are removed from ethylene-propylene-diene terpolymer by stripping at a pressure between 20 and 80 psia and a temp. between 65 and 115.degree.. Thus, propene [115-07-1] 21.06, propane [74-98-6] 2.451, ethylene [74-85-1] 4.54, 5-ethylidene-2-norbornene (I) [16219-75-3] 3.63, benzene [71-43-2] 4.313, Et2Zn 0.081, V tris(acetylacetonate) 0.0025, and iso-Bu2AlCl 0.006 kg was polymd. 1 hr at 0.degree. and 94 psig, terminated with MeOH, and the product washed with 3% caustic soln. The product was stripped in a special vessel at 20 psia and 80.degree.. Ethylene 3.5, propene 80.0, propane 11.5, benzene 5%, and a trace of I were removed without degrdn. 74-85-1 and 115-07-1 are just another two chemicals used in this study. and losses. The polymer was free of oligomers and monomers. .