Title: Encapsulated impregnated rovings

Abstract: Rovings impregnated with a semi solid mixture of thermosetting resin and thermoplastic resin and which can be handled in textile processing equipment are provided by overcoating the impregnated roving with a thermoplastic encapsulating resin to form an encapsulating membrane of thermoplastic resin around the impregnated roving which provides the strength, flexibility, and surface properties needed for textile handling. The thermosetting resin is preferably an epoxy-resin dicyan-diamide combination and it is preferably used in admixture with a polysulfone resin.

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Inventors: Brook, Richard L. (Mt. Prospect, IL, US)

Application Number: 942450
Filing Date: 1978-09-14
Publication_date: 1980-03-25
Assignee: DeSoto, Inc. (Des Plaines, IL)
Primary Class(es): 428/375 428/367, 428/372, 428/378, 428/392, 428/394, 428/397
Other Classes:
US Patent Ref:

2684309	Jul, 1954	Deardurff	428/378.
3119711	Jan, 1964	Starmann et al.	428/392.
3296063	Jan, 1967	Chandler	260/824.
3323176	Jun, 1967	Naegeli	19/66.
3371476	Mar, 1968	Costello et al.	57/140.
3576705	Apr, 1971	Goldsworthy	428/392.
3631150	Dec, 1971	Green	260/830.
3679507	Jul, 1972	Marzocchi	428/378.
3775150	Nov, 1973	McClary	428/395.
3806483	Apr, 1974	Juba	260/29.
3859379	Jan, 1975	Kitamura et al.	260/830.

Other Refs: 20522251306231

May, 1971	DE
Feb, 1973	GB

Primary Examiner: Kendell, Lorraine T.
Assistant Examiner:
Attorney: Dressler, Goldsmith, Clement, Gordon & Shore, Ltd.