Reference

Reactive thinners for epoxy resins

Reactive thinners for epoxy resins. Pilny, M.; Mleziva, J. (Tech. Univ. Chem., Pardubice, Czech.). Kunststoffe, 67(12), 783-90 (German) 1977. CODEN: KUNSAV. DOCUMENT TYPE: Journal CA Section: 36 (Plastics Manufacture and Processing) The properties of 18 reactive diluents are given, and the effects of these diluents on the viscosity of bisphenol A diglycidyl ether polymer (I) [25085-99-8] and on the properties of I hardened with hexahydrophthalic anhydride [85-42-7] are described. Of the 18 diluents, allyl glycidyl ether (II) [106-92-3] and Bu glycidyl ether [2426-08-6] gave the greatest decrease in the viscosity of I. Of 12 diepoxide diluents, vinylcyclohexene dioxide [106-87-6] and dipentene dioxide [96-08-2] gave the greatest decrease in the viscosity of I. Among five diglycidyl esters, glycidyl hexahydrophthalate [5493-45-8] gave the greatest decrease in viscosity of I. The effects of the diluents on the properties of the hardened I varied, and the choice of a diluent depended mainly on the intended use of the hardened I. II, Ph glycidyl ether [122-60-1], furfuryl glycidyl ether [5380-87-0], and N,N-diglycidylaniline [2095-06-9] were irritating to skin and/or eyes, but diglycidyl phthalate [7195-45-1] and hexahydrophthalate caused little irritation.

Polyester compositions for heat- and impact-resistant moldings

Polyester compositions for heat- and impact-resistant moldings. (Toray Industries, Inc., Japan). Jpn. Kokai Tokkyo Koho JP 59098159 A2 6 Jun 1984 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L067-02; C08L025-02; C08L063-00. ICA: C08G059-42. APPLICATION: JP 82-207529 29 Nov 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The title compns. contain arom. vinyl compd.-a,b-unsatd. cyclic imide copolymers and polyepoxides. Thus, poly(ethylene terephthalate) [25038-59-9] (relative viscosity 1.41, 0.5% soln. in o-ClC6H4OH at 25°) 100, maleimide-styrene copolymer (I) [25721-75-9] 40, and glycidyl hexahydrophthalate (II) [5493-45-8] 4 parts were dry-blended, extrusion-pelletized at 280°, and injection-molded to give a specimen with bending strength 965 kg/cm2, bending modulus 2.88 ′ 104 kg/cm2, heat distortion temp. (18.56 kg/cm2 load) 101°, and notched Izod impact strength 3.5 kg-cm/cm, compared with 1055, 2.87 ′ 104, 72, and 1.5, resp., for a control not contg. I and II.