Reference

Poly(vinyl chloride) paste for making substrate-supported films

Poly(vinyl chloride) paste for making substrate-supported films. Zvironaite, B.; Kaminskas, A.; Zukas, P; Dicmaniene, E. (All-Union Scientific-Research Institute for Insulation and Acoustic Construction Materials, USSR). U.S.S.R. SU 1134574 A1 15 Jan 1985 From: Otkrytiya, Izobret. 1985, (2), 98. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: ICM: C08J005-18. ICS: C08L027-06. APPLICATION: SU 83-3671753 13 Dec 1983. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) PVC [9002-86-2] paste for prepg. substrate-supported films is obtained by mixing 39-55 parts polymer with 36-50 parts plasticizer-vat residues from dimethyl terephthalate [120-61-6] prodn., and aging with 0.5-10 parts filler and 0.5-5 parts stabilizer. The migration of the plasticizer from the films is prevented by addnl. heating at 35-55° for 2-240 min with cooling to room temp.

Oxidation of p-xylene and methyl p-toluate

Oxidation of p-xylene and methyl p-toluate. Pokorska, Zofia; Boebel, Henryk; Ziolkowski, Jozef; Fiszer, Renata; Smoczynski, Pawel (Instytut Ciezkiej Syntezy Organicznej "Blachownia", Pol.). Pol. PL 122909 B1 30 Jul 1984, 3 pp. (Polish). (Poland). CODEN: POXXA7. CLASS: IC: C07C051-265; C07C063-04; C07C063-26; C07C069-82. APPLICATION: PL 79-218949 12 Oct 1979. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) p-Xylene (I) [106-42-3], Me p-toluate (II) [99-75-2], or their mixts. used in manuf. of di-Me terephthalate (III) [120-61-6] are oxidized with high selectivity with atm. O at 120-200° and 0.1-2 MPa in the presence of a mixed catalyst comprising Co, Mn, Ni, and Cu salts of C1-12 carboxylic acids at 100:(1-20):(0.1-25):(0.5-50) Co-Mn-Ni-Cu ratio. Thus, 9.5 m3 I was mixed with 200 L catalyst contg. Co, Mn, Ni, and Cu salts (the metal ion concn. in the reaction mixt. was 72, 3.2, 0.8, and 0.4 ′ 10-4 %, resp.) and 19.1 m3 mixt. contg. 0.29 parts II. The pressure in the reactor was kept at 0.6 MPa and the air flow was kept at 1900-2000 Nm3/h. The oxidn. proceeded 15 h at 140-160° to give in the reaction mixt. 58.4% p-toluic acid, terephthalic acid, and terephthalic acid Me ester, which are then further esterified to III.