Detail of "25928-85-2"

CAS Number:
25928-85-2
Name:
5-Isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo-, polymer with 4,4-methylenebis(benzenamine)
Molecular Weight:
0
Synonyms:
5-Isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo-, polymer with 4,4-methylenebisbenzenamine;5-isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo-, polymer with 4,4’-met;hylenebis[benzenamine]

Please post your buying leads,so that our qualified suppliers will soon contact you!
*Required Fields

Poly(amide imides): Poly(amide imides). Bruma, Maria; Crivetz, Leonia (Institutul de Chimie Macromoleculara "Petru Poni", Rom.). Rom. RO 58819 7 Jul 1975, 2 pp. (Romanian). (Romania). CODEN: RUXXA3. CLASS: IC: C08G020-00. APPLICATION: RO 72-70208 21 Mar 1972. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) A method is given for manuf. of poly(amide imide) resins with increased thermal stability, dielec. resistance, and flexibility. Thus, a soln. of 4,4'-diaminodiphenylmethane and N-methylpyrrolidinone was treated with a soln. of trimellitic anhydride chloride in C6H6 and propylene oxide [75-56-9] (as acid acceptor) to obtain the polyamic acid, which was cyclized to the poly(amide imide) [25928-85-2] resin by heating for 15 min at 270-80°.

Strong transparent temperature-resistant open-weave cloth: Strong transparent temperature-resistant open-weave cloth.Some chemicals with cas registry numbers like 25928-85-2 are also used. (Albany International Corp., USA). Neth. Appl. NL 7514486 26 Aug 1976, 11 pp. Addn. to Neth. Appl. 74 15370. (Dutch). (Netherlands). CODEN: NAXXAN. CLASS: IC: D03D015-12. PRIORITY: US 75-552765 24 Feb 1975. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) The title textiles are woven from heat-resistant polyamide warp yarns and woof yarns of heat-resistant synthetic org. fibers twisted or braided over a core of glass or metal fiber, and are coated with a heat-resistant synthetic resin. Thus, a textile was woven from a 1300 denier Dacron warp yarn and a woof yarn consisting of Dacron twisted over a core of glass fiber. The textile was dipped in a 10% soln. of p,p'-diaminodiphenylmethane-trimellitic anhydride chloride copolymer [25928-85-2] in N-methylpyrrolidone dried, and hardened to give polymer uptake 10%. The product had open area about 35%, and was light, flexible, and wear-resistant. .