Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1994-07-26
1996-01-02
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528125, 528128, 528171, 528172, 528173, 528174, 528176, 528183, 528185, 528188, 528220, 528229, 528350, 524600, 524606, 4284111, 4284735, C08G 6926, C08G 7310, C08L 7908, C08L 7700
Patent
active
054809657
ABSTRACT:
This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the thermoplastic polyimide and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition, a polyimide-based composite obtained by molding the above soluble and thermoplastic polyimide in combination with a fibrous reinforcement, and a fibrous reinforcement having a surface modified with the above polyimide.
The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein m and n are individually an integer of 0 or 1, and R is ##STR2## The polyimide of the invention is essentially amorphous, excellent in melt flow stability in the decreased temperature as compared with conventionally known polyimide and has greatly improved processability.
The polyimide of the invention obtained by using a novel aromatic diamino compound as a monomer can control various properties such as melt flow ability and solubility in solvents by side chains and not by principal chain of polyimide. Thus, excellent melt flow property and solubility in solvents can be obtained while maintaining high heat resistance and adhesive property which are derived from benzophenone structure of the diamino compound of the the invention.
REFERENCES:
patent: 4405770 (1983-09-01), Schoenberg et al.
patent: 4489185 (1984-12-01), Schoenberg
patent: 4588804 (1986-05-01), Fryd
patent: 5116939 (1992-05-01), Fletcher et al.
patent: 5231160 (1993-07-01), Tamai et al.
Polymer Letters Edition, vol. 13, pp. 701-709 (1975).
Polymer Letters Edition, vol. 12, pp. 697-710 (1974).
Chemical Abstracts, vol. 110, No. 96035d, Mar. 20, 1989.
Chemical Abstracts, vol. 73, No. 78636p, Oct. 19, 1970.
Patent Abstracts of Japan, vol. 10, No. 112 (C-342) Apr. 25, 1986 & JP-A-60240740 (Mitsui Toatsu Kagaki KK) Nov. 29, 1985 *Abstract*.
Asanuma Tadashi
Ishihara Yuko
Matsuo Mitsunori
Oikawa Hideaki
Okawa Yuichi
Hampton-Hightower P.
Mitsui Toatsu Chemicals Inc.
LandOfFree
Readily soluble, amorphous polyimide, and preparation process of does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Readily soluble, amorphous polyimide, and preparation process of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Readily soluble, amorphous polyimide, and preparation process of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-235963