The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1997
Filed:
Jun. 07, 1995
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention is directed to C.sub.60 diamine adducts, processes for preparing them and polymers prepared from them. C.sub.60 diamine adducts is a symmetrical icosahegron which is composed of 12 pentagons and 20 hexagons and links to 2 to 4 diamines. The processes for preparing the product comprises the steps of: adding C.sub.60 in benzene or toluene of a constant concentration to a certain amount of linear aliphatic diamine having the structural formula H.sub.2 N--(CH.sub.2)n--NH.sub.2 wherein n=2, 4 or 6 for reaction, or adding a definite amount of C.sub.60 directly to linear diamine of a definite concentration to produce C.sub.60 diamine adducts. Elemental analysis shows that the product contain about 5.9% nitrogen, about 72.6% carbon and about 3.84% hydrogen, and the number of diamine linked to C.sub.60 is in the range of 2 to 4. C.sub.60 diamine is useful as a polymerization monomer for the preparation of polyamides or relevant polymers.