Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Reexamination Certificate
2005-03-22
2005-03-22
Ruddock, Ula C. (Department: 1771)
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
C428S142000, C428S147000, C428S149000, C428S343000, C428S3550RA, C428S3550AC, C442S050000, C442S054000, C442S058000, C442S065000, C442S066000, C442S067000, C442S079000, C442S081000, C442S085000, C442S086000, C442S087000, C442S149000, C442S151000
Reexamination Certificate
active
06869662
ABSTRACT:
The present invention relates to a non-blocking roll of roofing membrane employing a combination of silicone rubber sealant, non-woven fiberglass scrim and pressure sensitive adhesive. The method utilizes a process by which silicone rubber sealant is applied to the top surface of the non-woven fiberglass scrim and made to penetrate {fraction (1/10)} to {fraction (9/10)} of the way into the thickness of the scrim, thus no silicone rubber sealant reaches the bottom or underside surface of the scrim. To the remaining {fraction (9/10)} to {fraction (1/10)} of the scrim's thickness and to the bottom surface of the scrim is applied pressure sensitive adhesive. This construction results into a self-adherent roofing membrane that can be packaged and transferred in roll form without the need to include an additional release liner sheet or non-blocking material such as talc, mica, or clay powder.
REFERENCES:
patent: 4569870 (1986-02-01), Shinmi
patent: 2148346 (1985-05-01), None
LandOfFree
Self-adherent roofing membrane without the need for a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-adherent roofing membrane without the need for a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-adherent roofing membrane without the need for a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3453164