Particle with substituted polyvinyl alcohol coating

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Enzyme component of specific activity or source

Reexamination Certificate

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Details

C510S130000, C510S224000, C510S392000

Reexamination Certificate

active

06872696

ABSTRACT:
The present invention provides an improved coating material for use with particles, such as enzyme granules, and the like. In particular, the present invention provides a modified PVA, as well as particles or granules that include such coating. The PVA is modified by substituting hydrophilic moieties for the hydroxyl or alcohol groups of the PVA. Substitution may be achieved with hydrophilic acids, amines, thiols, or combinations thereof.

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