Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1992-10-26
1994-05-10
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 76, 528 80, 528 83, 528 84, 528 85, 524726, C08G 1834, C08G 1866
Patent
active
053108507
ABSTRACT:
Disclosed is a novel linear urethane-amide-imide copolymer composition obtained from first reacting X mols of diol compound, which had been dissolved in an inert organic solvent, with Y mols of diisocyanate compound at room temperature to produce an intermediate reaction product, followed by reacting the intermediate reaction product with Z mols of trimellitic anhydride at elevated temperatures, wherein Y is greater than X (i.e., the amount of diisocyante groups is in excess) and approximately equals the sum of X plus Z. The polyurethane copolymer composition obtained from this process contains urethane, amide and imide groups on the polymer backbone, exhibits excellent mechanical and electric properties and heat resistance, and does not suffer from the phase separation problems observed from polyurethane-polyamideimide blends.
REFERENCES:
patent: 3317480 (1967-05-01), Fetscher et al.
patent: 3489696 (1970-01-01), Miller
patent: 3560446 (1971-02-01), Zecher et al.
patent: 3812082 (1974-05-01), Jones
patent: 3869428 (1975-03-01), Mosimann et al.
patent: 4459383 (1984-07-01), Lee
patent: 4477624 (1984-10-01), Waki
patent: 4496715 (1985-01-01), Sattler
patent: 4654409 (1987-03-01), Shirai et al.
patent: 4816544 (1988-05-01), Kemiya et al.
patent: 4880847 (1989-11-01), Credali et al.
patent: 4921761 (1990-05-01), Yamada
Chen Jyh-Chien
Hsu Sheng-Yaw
Lee Tzong-Ming
Pan Jing-Pin
Industrial Technology Research Institute
Kight III John
Liauh W. Wayne
Sergent Rabon
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