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Ionomeric sheeting in roll form and process for producing same

a technology of ionomeric sheets and roll forms, applied in the direction of filament/thread forming, chemistry apparatus and processes, other domestic articles, etc., can solve the problems of inconvenient and wasteful form, increased requirements for properties, and increased difficulty in counting, stacking, packaging and shipping large numbers of flat sheets

Active Publication Date: 2013-08-06
PERFORMANCE MATERIALS NA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables efficient production and handling of thick ionomeric sheets for laminates and solar cell modules, reducing waste and improving processing efficiency by allowing continuous roll-form supply and eliminating the need for pre-conditioning, thus facilitating standard lamination procedures.

Problems solved by technology

When ionomeric sheets are used as interlayers in laminated structures, however, the required properties may be more stringent.
This form is inconvenient and wasteful, however.
Also, it is more difficult to count, stack, package and ship large numbers of flat sheets than it is to manufacture rolls of sheeting and transport the rolls to end users.

Method used

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  • Ionomeric sheeting in roll form and process for producing same
  • Ionomeric sheeting in roll form and process for producing same

Examples

Experimental program
Comparison scheme
Effect test

examples

[0068]A portion of SentryGlas® sheeting (200 ft in length, 35 mil in thickness) was wound up in a roll on an acrylonitrile butadiene styrene (ABS) core. The roll parameters are set forth in Table 1, below.

[0069]

TABLE 1Roll ParametersOuter diameter (OD) of core6.4 inchesInner diameter (ID) of core6.0 inchesWidth of sheeting50 inchesLength of sheeting200 feetOuter diameter of sheeting on roll13 inchesTensions of roll2.25-2.0 pli

[0070]The SentryGlas® roll was shipped to a converter's facility and stored in a cold room at about 2° C. to about 10° C. for approximately a week. After this storage period, the entire portion of sheeting was cut into sheets using a Rosenthal sheeter, available from the Rosenthal Mfg. Co., Inc., of Northbrook, Ill. The ambient conditions in the cutting room were 62° F. and 20% RH. The Rosenthal sheeter was run with an open nip and with no tension on the dancer roll. Its blade cut through the sheeting successfully, although no experiments were performed to opti...

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Abstract

Provided herein is relatively thick ionomeric sheeting that can be taken up into a roll and supplied in continuous form. Also provided herein are methods of manufacturing rolls of relatively thick, continuous ionomeric sheeting. Further provided herein are methods of producing glass laminates, wherein the relatively thick ionomeric sheeting is not conditioned to reduce curvature prior to stacking the pre-press assembly. These continuous rolls eliminate costly cutting and stacking steps in ionomeric sheeting that is intended for use as interlayers in laminated structures, for example safety glass and photovoltaic cells.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Appln. No. 61 / 291,339, filed on Dec. 30, 2009, which is incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The invention relates to relatively thick, continuous ionomeric sheeting that is wound up into rolls. Methods of manufacturing the thick, rolled ionomeric sheeting are also provided herein.BACKGROUND OF THE INVENTION[0003]Several patents and publications are cited in this description in order to more fully describe the state of the art to which this invention pertains. The entire disclosure of each of these patents and publications is incorporated by reference herein.[0004]Ionomeric films are commonly supplied in roll form. These ionomer films, however, are usually intended to be converted into packaging, such as food or medical packaging, for example. In these applications, the packaging film may be required to do little more than s...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B32B38/00B32B38/04B32B37/24B29C47/14B29C48/305
CPCB32B17/10743B32B17/10935B32B17/10954B32B37/0015B32B37/003B32B37/04B32B37/12B32B37/153B32B37/223B32B38/06B32B2307/734B32B2309/105B32B2315/08B32B2367/00B32B2457/12B29C48/08B29C48/9135B29C48/914Y10T156/1062
Inventor HANSEN, STEVEN M.JACKSON, MICHAELLEE, MOSES T.SUTLIC, VINCE D.
Owner PERFORMANCE MATERIALS NA INC