Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1995-02-15
1997-07-08
Cain, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 52, 524104, 524106, 524121, 524122, 524123, 524414, 524418, 524419, 524484, 524486, C08L 300
Patent
active
056462077
ABSTRACT:
An aqueous sizing composition for glass fibers particularly useful for the reinforcement of thermoplastic or thermosetting matrix polymers contains film-forming material, fluorescent whitening agent, coupling agent, stabilizing agent and lubricant. The film-forming material is selected to be compatible with thermosetting or thermoplastic matrix polymer used in the ultimate forming process. The fluorescent whitening agent is at least dispersed, emulsified or solubilized in water.
The sizing compositions are particularly advantageous for sizing glass fibers to be used in the reinforcement of matrix polymers for forming molded parts. The resultant molded part exhibits exceptional whiteness and and comparable physical properties to materials without the brightening agent.
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Cain Edward J.
Pingitore Linda
PPG Industries Inc.
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