Poly(vinylalcohol)-co-poly(vinylamine)polymers comprising...

Details Poly(vinylalcohol)-co-poly(vinylamine)polymers comprising... Poly(vinylalcohol)-co-poly(vinylamine)polymers comprising...

2002-12-16

2009-08-11

Wyrozebski, Katarzyna (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C428S334000, C428S328000, C428S032340

Reexamination Certificate

active

07572843

ABSTRACT:
The invention relates to poly(vinylalcohol)-co-poly(vinylamine) copolymers represented as formula (I), where B is greater than or equal to 1, L is independently of each other a chemical linking group which is —NH—, —N═, >N—, >N++<, —O— or —CO—, COPOLYMER is derived from a prepolymer of the formula (II) where R1and R3are independently H; 3-propionic acid or C1,-C6alkyl ester thereof; or is 2-methyl-3-propionic acid or C1-C6alkyl ester thereof, R2and R4are independently H or C1,-C6alkyl, x+y+z is between about 3 and about 50 mole percent and q, n and m together make up the remainder of the mole percent, the indices x, y, z, n, m -and q independently may be 0, if q is not 0, b may also be 0.

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