Reference

Corrosion prevention of steel

Corrosion prevention of steel. (Nitto Electric Industrial Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59062369 A2 9 Apr 1984 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B05D007-14; B05D007-24. ICA: C09D003-58; C09D005-00; C09D005-40. APPLICATION: JP 82-171298 30 Sep 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 55 A steel plate is undercoated at thickness 5-100 m with a powd. epoxy resin (epoxy equiv. wt. 450-5500) contg. dicyandiamide (I) [461-58-5] (or its deriv.) and an inorg. filler and exhibiting tensile strength 2.0-6.0 kg/mm2 after cure and is topcoated with a powd. epoxy resin (epoxy equiv. wt. 450-5500) contg. similar compds. and exhibiting tensile strength 5.5-10 kg/mm2 after cure to give a product with high corrosion and impact resistance. Thus, a steel plate (thickness 9 mm) was powder-coated with a compn. comprising Epikote 1002 (IV) [25068-38-6] 100, I 5, 2-undecylimidazole (II) [16731-68-3] 0.5, Nyad 325 [13983-17-0] 30, Lionel Green Y 101 (III) (pigment) 0.4 and Modaflow powder (wetting agent) 1 part (150 mesh, gel time 60 s at 200°, and tensile strength 4.5 kg/mm2 after cure) to a thickness of 20 m, topcoated with a compn. comprising IV 100, trimellitic anhydride [552-30-7] 12, II 0.5, TiO2 80, III 0.4, and Modaflow powd. 1 part (gel time 60 s at 200°, tensile strength 7.0 kg/mm2 after cure), and cured at 230° for 5 min to give a product exhibiting crosscut adhesion test 25/25 after 20 h in boiling water, cathodic peeling 8 mm after 30 days of electrolysis in 30% aq. NaCl soln. at 6V, and max. height before sample breakage upon dropping 3-kg dart 60 cm, compared with 0/25, 30 mm, and 60 cm,resp., for a product without undercoating.

Chemically embossed cellular PVC

Chemically embossed cellular PVC. (Toppan Printing Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59145072 A2 20 Aug 1984 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B05D005-06; B29D027-00. APPLICATION: JP 83-19159 8 Feb 1983. DOCUMENT TYPE: Patent CA Section: 38 (Plastics Fabrication and Uses) A cellular building product with chem. embossed sharp patterns is prepd. by coating a PVC compn. contg. a blowing agent and a reactive plasticizer on a base sheet, heat-treating the resin without decompg. the blowing agent to form a semi-gel, pattern-printing with an ink contg. a foaming suppressor and an org. peroxide as a curing catalyst for the reactive plasticizer, and foaming the PVC. Thus, paper was coated with a PVC [9002-86-2] paste contg. DOP 45, trimethylolpropane trimethacrylate [3290-92-4] 15, azodicarbonamide 4, Ca-Zn stabilizer 2, CaCO3 50, and TiO2 5 phr to a thickness of 0.16 mm, heated at 130° for 1 min, pattern-printed with an ink contg. 3% tert-butylperoxy 2-ethylhexanoate [3006-82-4] and 20% trimellitic anhydride [552-30-7], and foamed at 200° for ~1 min to give a desired product.