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| Drying bin floor |
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| Multi-point high security locking mechanism for lottery machines |
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| Safety door and safety apparatus for installation in a door |
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| Multiple lock assembly |
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| Penetration-resistant security passway and door therefor |
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| Upright construction section |
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Self-adhesive laminate for sealing window frames and method of sealing window frames
| Details |
Inventors: Simpson, Robert S.;
Assignee: MFM Building Products Corp. (Coshocton, OH)
Primary Examiner: Osele; Mark A.
Assistant Examiner:
Attorney, Agent or Firm: Kremblas, Jr.; Francis T. Kremblas, Foster, Phillips & Pollick
A self-adhesive laminate for sealing window frames includes an aluminum layer having a first side and a second side, a polyester layer adhered to the first side of the aluminum layer, an adhesive layer adhered to the second side of the aluminum layer, and a release paper overlying the adhesive remote from the aluminum layer. This laminate reduces or eliminates the overheating problems common in prior art tapes. |
|
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-adhesive laminate 1 used in sealing window frames.
The laminate includes three primary elements, a polyester layer 10, a metallic aluminum layer 12, and an adhesive layer 14.
The polyester layer 10 and the aluminum layer 12 are preferably integrally formed.
The aluminum layer 12 may be deposited on the polyester layer 10 in any manner which is commonly used in the industry, such as via vapor deposition techniques, for example, or other equivalent means.
The polyester film is preferably between about 0.
00045 in.
and about 0.
02 in.
thick.
The aluminum layer is preferably between about 10 nm and about 100 nm thick.
An adhesive layer 14 is adhered to the side of the aluminum layer 12 remote from the polyester layer 10.
The adhesive layer 14 is preferably a rubberized asphalt, most preferably made from asphalt, thermoplastic elastomers, process oil and tackifying resins.
Alternatively, the adhesive layer 14 is an adhesive based on butyl rubber or polyisobutylene.
The adhesive layer 14 preferably has a thickness between about 0.
015 in.
and about 0.
060 in.
A release layer 16 is applied to be adjacent the adhesive layer 14, remote from the aluminum layer 11.
It is important that the aluminum layer 12 be placed between the adhesive layer 14 and the polyester layer 10.
The adhesives used in the adhesive layer 14 tend to include oils, such as the process oil mentioned above.
In prior art devices, the adhesive layer is placed adjacent a polyethylene sheet.
Over time, the oils from the adhesive layer contact the polyethylene sheet and, to a certain extent, leach into or are absorbed by the polyethylene sheet.
This leaching causes the polyethylene sheet to swell, wrinkle, degrade and fail over time.
In the present invention, the aluminum layer 12 between the polyester layer 10 and the adhesive layer 14 acts as a barrier to the oils in the adhesive layer relative to the polyester sheet 10.
The oils do not degrade the aluminum layer 12 and are not transferred through the aluminum layer to the polyester sheet 10
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