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HDD Pigmented Damping PSA

IP.com Disclosure Number: IPCOM000237256D
Publication Date: 2014-Jun-10
Document File: 1 page(s) / 18K

Publishing Venue

The IP.com Prior Art Database

Related People

Robert W. Schneider: INVENTOR [+3]

Abstract

The use of a pigmented material in an acrylic adhesive would allow for it to improve damping properties of the PSA label. A formulation of 2.5% carbon black by dry weight of adhesive would be a formulation of interest. Although the amount of pigment could be as high as 55% of dry weight of the PSA.

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Title: HDD Pigmented Damping PSA

Inventor: Robert W. Schneider, Josh Bogner and Henry Milliman

Description of the Invention:     The use of a pigmented material in an acrylic adhesive would allow for it to improve damping properties of the PSA label.  A formulation of 2.5% carbon black by dry weight of adhesive would be a formulation of interest. Although the amount of pigment could be as high as 55% of dry weight of the PSA.

Nature of the Problem:                Hard Disk Drives suffer from high vibration as a result of operation, the drive requires a damping label. The formulation of an adhesive that is "tuned" to damp the vibration will allow for a quieter operation.

Utilization of Invention:                Using a pigmented system would allow for more "layers" within the adhesive which would result in increased density.

Using the Pigmented adhesives formulations (attached below) laminated to foil has shown damping properties desirable in Hard Disk Drive Applications.

1) White formulation:

Component #

Component Item #

Description

Quantity per 1 pound

1
2
3

EXGL3131
951-70
950-05

DEV-8193Y high solids adhesive
White pigment dispersion
Toluene

.76508
.13501
.09991

2) Grey formulation:

Component #

Component Item #

Description

Quantity per 1 pound

1
2
3
4

EXGL3131
975-05
951-70
950-05

High solids adhesive DEV-8193Y
Grey dispersion
White pigment dispersion
Toluene

.835654596
.063138347
.031569174
.069637883

The dry adhesive coat weight will be...