Bisoxazolone based polymers

Details Bisoxazolone based polymers Bisoxazolone based polymers

2005-10-04

2005-10-04

Woodward, Ana (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S328400, C525S329100, C525S329300, C525S540000, C528S407000, C528S424000

Reexamination Certificate

active

06951905

ABSTRACT:
A method of preparing an elastomeric polymer comprising the step of reacting a bisoxazolone with a primary or secondary di-amine terminated oligomer. Also disclosed is a polymer having the formula comprising the repeat unit (I), where R1, R2, R3and R4can be any alkyl or aryl groups and R5the amine terminated oligomer

REFERENCES:
patent: 4291152 (1981-09-01), Inata et al.
patent: 55-160025 (1980-12-01), None
patent: 56-79129 (1981-06-01), None
Acevedo et al; “Study of Bulk Chain Coupling Reactions. I. Reaction Between Bisoxazolones and Amine-Terminated Polyamide 12”; Journal of Polymer Science: Part A; Polymer Chemistry, US, John Wiley and Sons; vol. 31, 2993, pp. 817-830, XP00965584.
Acevedim et al; “Study of B Bulk Chain Coupling Reactions. I. Reaction Between Bisoxazolones and Amine-Terminated Polyamide” Synthesis of Polyether-Block-Polyamides; Journal of Polymer Science, Polymer Chemistry Edition, US, John Wiley and Sons, New York, vol. 31, No. 6, May 1, 1993, pp. 1579-1588, XP00398502.

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