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US 6,166,117 AGranted
Water-soluble film
AssigneeKuraray Co., Ltd.
InventorHirotoshi Miyazaki
Life of this patent
Estimating the term…
Abstract
A water-soluble film, comprising 100 parts by weight of (A) a sulfonic acid group modified polyvinyl alcohol and 0.05-20 parts by weight of (B) gallic acid, salts thereof or a C.sub.1-5 alkyl ester thereof.
Claims12
A water-soluble film, comprising:
- 100 parts by weight of (A) a sulfonic acid group modified polyvinyl alcohol and 0.50-20 parts by weight of (B) gallic acid, its salts or a C.sub.1-5 alkyl ester thereof.
A composition, comprising:
- 100 parts by weight of (A) a sulfonic acid group modified polyvinyl alcohol and 0.05-20 parts by weight of (B) gallic acid, salts thereof or a C.sub.1-5 alkyl ester thereof.
Dependencies are inferred from the claim text.