USH1535HExpiredUtilityPatentIndex 62
Treatment process for preserving books, papers, films, photographs and reports
Est. expiryNov 23, 2014(expired)· nominal 20-yr term from priority
G03C 11/00B41M 7/0063G03C 1/775D21H 25/18
62
PatentIndex Score
3
Cited by
7
References
3
Claims
Abstract
A method for making books, papers and film more resistant to moisture and pollution degradation using a low pressure, low temperature gas plasma.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A method for treating a paper product to prevent said paper product from cracking, yellowing, or becoming brittle, comprising: exciting a gas at a predetermined pressure and a predetermined temperature to form a gas plasma; and briefly exposing said paper product to said gas plasma.
2. A method for treating a paper product to make said paper product more resistant to acid degradation, comprising: exciting a gas at a predetermined pressure and a predetermined temperature to form a gas plasma; and briefly exposing said paper product to said gas plasma.
3. A method for treating a film product to make said film product more resistant to acid degradation, comprising: exciting a gas at a predetermined pressure and a predetermined temperature to form a gas plasma; and briefly exposing said film product to said gas plasma.Cited by (0)
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