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Glass fiber material having strength retention in a moist environment
   
Document Number
US Patent 3973071
Issued Date
August 3, 1976
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Abstract
Glass fiber filament bundles such as cords for rubber reinforcement are impregnated and coated with an elastomer composition such that the coated cord maintains adhesion and tensile strength even in a moist environment due to the inclusion in the coating of a chemically treated diatomaceous earth. These chemically treated diatomaceous earths contain a major portion of an alkali earth metal silicate.
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Number of Claims:
7
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Owner
PPG Industries, Inc. (Pittsburgh, PA)
Published
August 3, 1976
Application Number
05/615,267
Filed
September 22, 1975
US Classification
428/300.1   106/467 427/389.7 428/378 428/391 428/392 524/448 525/133 525/139 525/142 525/57
Int'l Classification
C03C   25/10   (20060101)  
Assistant Examiner
Attorney/Law Firm
Parent Case
REFERENCE TO CROSS-RELATED APPLICATIONS This application is a continuation-in-part of application Ser. No. 461,683, filed Apr. 17, 1974, now abandoned.
USPTO Field of Search
106/306   260/38   260/845   260/846   260/3   260/37R   260/42.15   428/292   428/295   428/378   428/391   428/392   427/385A  
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