Reference

Heat-resistant poly(vinyl chloride) compositions

Heat-resistant poly(vinyl chloride) compositions. Chiba, Yoshiteru (Kyodo Chemical Co., Ltd., Japan). Japan. Kokai JP 51111852 2 Oct 1976 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L027-06. APPLICATION: JP 75-37265 27 Mar 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) A heat-resistant vinyl chloride resin compn. is prepd., contg. a fatty acid metal salt, a hydroxypolycarboxylate alkali metal salt, and a .beta.-dicarbonyl compd. Thus, a mixt. of PVC [9002-86-2] 100, calcium stearate [1592-23-0] 1.0, zinc stearate [557-05-1] 0.5, Na K tartrate [304-59-6] 0.3, lubricants 0.8, TiO2 1.0, and benzoylacetone (I) [93-91-4] 0.2 part was kneaded 25 min at 180.degree. to give a 0.Except for chemicals metioned above, 93-91-4 and 126-81-8 are also used.5-mm sheet with improved heat resistance compared with a control when I was omitted under the same conditions. .

Adhesion of electroless copper on alumina

Adhesion of electroless copper on alumina. Bhatgadde, L. G.; Mahapatra, S. (Indian Inst. Technol., Bombay, India). 50-00-0 and 7440-50-8 are cas registry numbers. These chemicals are also mentioned in this article. Met. Finish., 85(1), 55-7 (English) 1987. CODEN: MEFIA7. ISSN: 0026-0576. DOCUMENT TYPE: Journal CA Section: 56 (Nonferrous Metals and Alloys) Section cross-reference(s): 76 Adhesion of electroless Cu coatings on alumina substrates was studied as a function of concns. of SnCl2 sensitizer, PdCl2 activator, formaldehyde, and molar ratio of Rochelle salt/CuSO4. Adhesion increases with increasing sensitizer and activator concn. in the range 0.1-0.3%. Adhesion decreases with increasing bath concn. of formaldehyde [50-00-0] (0.04-0.12 M) as well as the molar ratio of Rochelle salt [304-59-6]/CuSO4. Surface morphol. revealed that the adhesion occurs by a mech. keying effect. According to a suitable model, during activation Pd adheres to the alumina by electrostatic forces of adsorption. .