Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1980-09-24
1982-07-27
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
65 343, 428378, 524310, 524110, 524291, 524258, 524375, 524591, 524598, C08L 6302
Patent
active
043416772
ABSTRACT:
Oil-in-water emulsions of antioxidants having low volatility and good thermal resistance are provided for treating fibrous reinforcements such as glass fibers. The emulsions are comprised of the antioxidant in an amount of about 5 to about 60 weight percent of the emulsion along with an organic solvent that has a boiling point above the temperature of use or of preparation and is compatible with the antioxidant in an amount in a ratio of about 0.5 to about 1.5 with the antioxidant and one or more emulsifiers selected from the group consisting of anionic, and nonionic having a combined HLB (hydrophilic/lipophilic balance) in the range of about 12 to about 27. The emulsion can also contain a resin carrier such as an epoxy resin and/or a stabilizing agent such as polyalkylene polyol.
An aqueous treating solution for treating fibrous reinforcement such as a sizing composition for treating glass fibers to increase the protection of fiber reinforced polymeric materials against chemical degradation due to the chemistry on the treated glass fibers or reaction and/or decomposition products of said chemistry is comprised of the oil-in-water emulsion, film-former, and coupling agent and may contain other conventional agents used in sizing composition.
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Pertilla Theodore E.
PPG Industries Inc.
Stachel Kenneth J.
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