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Optically clear and antistatic pressure sensitive adhesives

A technology of pressure-sensitive adhesives and antistatic agents, which is applied in the field of pressure-sensitive adhesives and can solve the problems of reflected light, yellowing and blurring of pressure-sensitive adhesives

Inactive Publication Date: 2007-11-28
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, optically clear pressure sensitive adhesives may yellow over time, or become hazy or reflect light, which is undesirable in many applications

Method used

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  • Optically clear and antistatic pressure sensitive adhesives
  • Optically clear and antistatic pressure sensitive adhesives
  • Optically clear and antistatic pressure sensitive adhesives

Examples

Experimental program
Comparison scheme
Effect test

specific example

[0105] Specific examples of polyoxyalkylene ammonium compounds that can be used as a precursor of the antistatic agent of the present invention are as follows:

[0106] [C 12 h 25 N + (CH 3 )(CH 2 CH 2 O) m H(CH 2 CH 2 O) n H]Cl - ;(m+n=15)

[0107] [C 6 h 5 CH 2 N + (CH 3 )(CH 2 CH 2 O) m H(CH 2 CH 2 O) n H]Cl - ;(m+n=15), where C 6 h 5 CH 2 benzyl

[0108] [C 12 h 25 N + (CH 3 ) 2 (CH 2 CH 2 CH 2 CH 2 O) m H]Cl - ;(m=15)

[0109] [N + (CH 2 CH 2 O) m H(CH 2 CH 2 O) n H(CH 2 CH 2 O) o H(CH 2 CH 2 O) p H]Cl - ;(m+n+o+p=20)

[0110] Examples of polyoxyalkylene ammonium compounds usable as the antistatic agent of the present invention are shown below. The number of repeating units of their polyoxyalkylene segments is approximate.

[0111] [C 18 h 37 N + (CH 3 )(CH 2 CH 2 O) m H(CH 2 CH 2 O) n H][ - o 3 SO(CH 2 ) 11 CH 3 ]; (m+n=15)

[0112] [C 18 h 37 N + (CH 3 )(CH 2 CH 2 O) m H(CH 2 CHCH 3 O) n H][...

Embodiment

[0179] These examples are illustrative only and are not meant to limit the scope of the appended claims. All parts, percentages, ratios, etc. in the examples and the remainder of the specification are by weight unless otherwise indicated.

[0180] AAA

acrylic

ALIQUAT 336

Methyltrioctylammonium chloride was purchased from Sigma, Milwaukee, WI, USA

Aldrich

Antistatic agent A

[C 8 h 17 N + (CH 3 ) 2 CH 2 CH 2 OH][ - o 3 SCF 3 ]

Antistatic agent B

[C 8 h 17 N + (CH 3 ) 2 CH 2 CH 2 OH][ - N(SO 2 CF 3 ) 2 ]

Antistatic agent C

[C 12 h 25 N + (CH 3 )(CH 2 CH 2 Oh) 2 ][ - N(SO 2 CF 3 ) 2 ]

Antistatic agent D

[C 12 h 25 N + (CH 3 ){(CH 2 CH 2 O) m H}{(CH 2 CH 2 O) n H}(m+n=15)]

[ - N(SO 2 CF 3 ) 2 ]

Antistatic agent E

[C 8 h 17 N + (CH 3 ) 2 CH 2 CH 2 OH][ - o 3 SCH 3 ], purchased f...

Embodiment 1～10 and comparative example C3～C6

[0244] The test methods for solubility and transparency mentioned above were used to determine the PSA monomer mixture and PSA slurry A containing 9 parts of IOA and 1 part of AA under the conditions of the selected antistatic agent. The properties and amounts of antistatic agents used, as well as the results of solubility and transparency measurements are shown in Table 1.

[0245] Example

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PUM

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Abstract

The present invention is directed to an antistatic pressure sensitive adhesive. The antistatic pressure sensitive adhesive comprises a pressure sensitive adhesive, and an antistatic agent comprising at least one organic salt. Certain embodiments of the antistatic pressure sensitive adhesive also have a luminous transmission of greater than about 89% according to ASTM D 1003-95. Additional embodiments of the antistatic pressure sensitive adhesive have a haze of less than about 5% according to ASTM D 1003-95, and in specific embodiments the haze is less than about 2% according to ASTM D 1003-95.

Description

field of invention [0001] The present invention relates to optically clear pressure sensitive adhesives comprising antistatic agents. Background of the invention [0002] Static charges are generated everywhere. The accumulation of electrostatic charge is responsible for various problems during the processing and use of many industrial products and materials. Static charges can cause materials to stick together or repel each other. Also, the buildup of static charge can cause objects to attract dust, which can cause manufacturing and contamination issues and can degrade product performance. [0003] Static electricity is a particular problem in the electronics industry because modern electronic devices are extremely susceptible to permanent damage from the discharge of static charges. The build-up of static charges on insulating objects is very common and occurs when liquids or solids move in contact with each other (triboelectric charging) under conditions of low humidit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C08K3/16C09J7/02C09J9/02C09K3/16C09J7/38C09J9/00C09J11/06C09J107/00C09J121/00C09J123/00C09J129/10C09J153/00C09J183/04
CPCC09J11/06C08K5/0075C09J7/0207C09J9/00C09J7/38Y10T428/2852Y10T428/28C09J9/02
Inventor 杨杰T·P·科伦P·法姆D·M·艾茨曼J·B·坎普贝尔
Owner 3M INNOVATIVE PROPERTIES CO
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