Detail of "13052-09-0"

Reference

Flexible polyester foam

Flexible polyester foam. Carr, Donald G.; Blonn, John M.; Milawski, Leonard E. (Standard Oil Co. (Indiana), USA). U.S. US 4465792 A 14 Aug 1984, 5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08J009-00. NCL: 521138000. APPLICATION: US 82-391514 24 Jun 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 36 Flexible unsatd. polyester foams are prepd. by mixing components A and B, each of the components comprising an unsatd. flexible polyester resin having an elongation of 8-70%, and unsatd. crosslinking monomer, a CO2-releasing compd. in the presence of an acid, an initiator, and an accelerator. The foams have d. of 2-50 lb/ft3, can be filled with ￡150 wt. parts inorg. materials, and can be reinforced with porous fabric or glass. Thus, component A comprising DD-2780-3 (I) [93357-40-5] resin 100, hydrated Al2O3 (II) 100, Dow corning 193 surfactant (III) 5, Cardox 40E [94-36-0] 5, Co 0.3, and potassium Hex-cem [93357-97-2] accelerator 0.4, and component B comprising I 100, II 100, III 5, Lupersol 256 [13052-09-0] 0.5, Lupersol DDM [1338-23-4] 0.5, and dimethyl-p-toluidine [99-97-8] 0.8 part were mixed and 10 wt.% Freon 142B and Freon 11B were added to the blends. The compns. were placed under vacuum and foaming was continued until gel time of ~6 min. A very flexible foam was obtained, which remained spongy and soft after an overnight oven cure at 185 °F for 16 h.

Two-phase, heat-curable polyepoxide-unsaturated monomer compositions

Two-phase, heat-curable polyepoxide-unsaturated monomer compositions. Brownscombe, Thomas F.; Hart, William W. C. (Shell Oil Co. , USA). U.S. US 4410680 A 18 Oct 1983, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08G059-56. NCL: 528088000. APPLICATION: US 82-439256 4 Nov 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) A curable thermosetting resin compn. exhibiting improved phys. properties, esp. heat temp. deflection, comprises a blend of 100 parts epoxy compd. contg. 31 vicinal epoxy group, 10-200 parts of 31 ethylenically unsatd. arom. monomer, a curing amt. of bis(4-aminocyclohexyl)methane (I) [1761-71-3], and an effective amt. of 2,5-dimethyl-2,5-bis(2-ethylhexanoylperoxy)hexane (II) [13052-09-0]. 1761-71-3 and 58250-17-2 are cas registry numbers of chemicals which are used as reagents here. Thus, a compn. of bisphenol A diglycidyl ether polymer [25085-99-8] 100, 20% isomeric mixt. of I, 29, styrene (III) [100-42-5] 20, and II 0.5 part was cured at 60° for 2 h and then post cured at 120° for 2 h to give a product having heat deflection temp. 128°, elongation at break 9.5%, tensile yield stress 10,790 psi, tensile breaking stress 10,630 psi, Young's modulus 374,000 psi, Izod notched impact test 0.43 ft-lb/in., and instrumental impact test 17 in.-lb, compared to 100, 1.8, 5250, 5250, 355,000, 0.24, and 11, resp., for the compn. not contg. II and III. .