Robert R Nali

US Patent:

41072596, Aug 15, 1978

Filed:

Oct 15, 1976

Appl. No.:

5/732935

Inventors:

William Chang Liu - Northbrook IL
Francis H. Bratton - late of Wilmette IL
Robert Ronald Nali - Mundelein IL

Assignee:

Brunswick Corporation - Skokie IL

International Classification:

B29C 500
B29C 700
B29G 700

US Classification:

264331

Abstract:

A method of making a pile product comprising a plurality of relatively long, thin face fibers extending from a base by molding a crosslinkable polymeric material. During the formation of the fibers, crosslinking of the polymeric material is initiated by heat activating a substance incorporated in the polymeric material which promotes crosslinking. Crosslinking imparts hot strength to the pile fibers so that the pile product, while still hot, can be removed from the mold without materially deforming the fibers. Consequently, the time it takes to mold the pile product is significantly reduced, thereby increasing productivity and lowering the cost of the product. Moreover energy is conserved because the mold is not continuously cycled between high and low extremes in temperature.