Method for making composite sheet material

Details Method for making composite sheet material Method for making composite sheet material

1988-04-22

1991-03-26

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624411, 15624418, 15624419, 15624427, 428212, 524426, B29B 4706

Patent

active

050026240

ABSTRACT:
A composite sheet material especially suited as a roofing material is disclosed. The sheet is a composite of extruded top and bottom layers. The top layer is formed by extrusion of a mixture of cured rubber particles dispersed in a matrix of polypropylene. The bottom layer is formed by coextrusion with the top layer of a mixture of calcium carbonate and cured rubber particles dispersed in a matrix of polypropylene. The method of fabricating the composite sheet material includes trimming longitudinal edges of the material with powered circular blades as it moves between chill rollers and a pull roller assembly. The material is spooled with minimum winding tension so as to prevent tension forces from being set in the material.

REFERENCES:
patent: 3589975 (1971-06-01), Andrews et al.
patent: 3850729 (1974-11-01), Paulson et al.
patent: 4101702 (1978-07-01), Churchill et al.
patent: 4192116 (1980-03-01), Kelly
patent: 4229504 (1980-10-01), Brachman
patent: 4233356 (1980-11-01), Jacobs
patent: 4289560 (1981-09-01), Simons
patent: 4537825 (1985-08-01), Yardley
patent: 4705818 (1987-11-01), Kawai et al.
patent: 4833194 (1989-05-01), Kuan et al.

Affiliated with

Also associated with

Rating

Method for making composite sheet material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making composite sheet material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making composite sheet material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-615100