Mixed lubricant sizing
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsLeonard Joseph Adzima, Robert Arthur Schweizer, Arthur Eloy Lopez, Donald Burton Sage, Jr.
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Abstract
The present invention relates to pellets comprising fibers impregnated with resin. The pellets incorporate a mixed lubricant sizing composition comprising at least one cationic lubricant and at least one non-ionic lubricant. These pellets may be consolidated to form fiber reinforced resin composites.
Claims12
A pellet comprising sized fibers impregnated by a thermoplastic polymer wherein said sized fibers were treated with a sizing composition comprising
- from about 0.01 to about 0.5 percent weight of a cationic lubricant;
- from about 0.5 to about 2.5 percent weight of a non-ionic lubricant;
- from about 1.0 to about 2.0 percent weight of a coupling agent;
- and
- from about 10 to about 12 percent weight of a modified polypropylene capable of reacting with the coupling agent.
A composite comprising fibers dispersed in a polymer matrix wherein, prior to being.dispersed, said fibers were treated with a sizing composition comprising
- from about 0.01 to about 0.5 percent weight of a cationic lubricant;
- from about 0.5 to about 2.5 percent weight of a non-ionic lubricant;
- from about 1.0 to about 2.0 percent weight of a coupling agent;
- and
- from about 10 to about 12 percent weight of a modified polypropylene capable of reacting with the coupling agent.
Dependencies are inferred from the claim text.