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Adhesive compound, method for modifying adhesive and product made from the modified adhesive

A composition and technology of silicon pressure-sensitive adhesives, applied in the directions of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of unsatisfactory application, weak bonding strength of silicone materials, etc., and achieve good bonding the effect of strength

Inactive Publication Date: 2009-10-28
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned silicone pressure-sensitive adhesives may cause some problems in some applications, for example, the adhesive strength of the pressure-sensitive adhesive tape made of the silicone pressure-sensitive adhesive to the silicone material is weak when the coating thickness of the silicone pressure-sensitive adhesive is relatively thin. Weak, unable to meet the requirements of the application

Method used

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  • Adhesive compound, method for modifying adhesive and product made from the modified adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Trimethyl borate (3 parts by weight) and Degussa DCLBP-50-PSI (6 parts by weight) were uniformly dispersed in a solution containing 100 parts by weight of ShinEtsu KRT-002 polydimethylsiloxane pressure-sensitive adhesive by stirring. The resulting pressure-sensitive adhesive composition having a solids content of 40% was then coated on a 0.025 mm PET film and immediately dried at 70° C. for 1 minute. The dried glue was then cured at 165°C for 2 minutes. The thickness of the obtained dry glue was 0.040mm.

Embodiment 2

[0042]Trimethyl borate (5 parts by weight) and CAT-PL-50T catalyst (ShinEtsu) (0.83 parts by weight) were added to a solution containing 100 parts by weight of ShinEtsu KR3700 polydimethylsiloxane pressure-sensitive adhesive, and in Stir to disperse evenly. The resulting pressure-sensitive adhesive composition having a solids content of 40% was then coated on a 0.025 mm PET film and immediately dried at 70° C. for 1 minute. The dried glue was then cured at 130°C for 2 minutes. The thickness of the obtained dry glue was 0.040mm.

Embodiment 3

[0044] Tributyl borate (28 parts by weight) and A75 (3 parts by weight) was added to a solution containing 100 parts by weight of Momentive PSA610 polydimethylsiloxane pressure-sensitive adhesive, and dispersed evenly under stirring. The resulting pressure-sensitive adhesive composition having a solids content of 40% was then coated on a 0.025 mm PET film and immediately dried at 70° C. for 1 minute. The dried glue was then cured at 177°C for 2 minutes. The thickness of the obtained dry glue was 0.040 mm.

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Abstract

The invention provides adhesive compound, a method for modifying adhesive and a product made from the modified adhesive. The organic silicon pressure-sensitive adhesive compound comprises organic silicon pressure-sensitive adhesive and compound containing boron-oxygen bonds.

Description

Technical field: [0001] The invention relates to an adhesive composition, a method for modifying the adhesive and its products. Specifically, it relates to a silicone pressure-sensitive adhesive composition, a method for modifying the silicone pressure-sensitive adhesive and products thereof. Background technique [0002] At present, silicone pressure-sensitive adhesives are mainly made by making polydiorganosiloxane and copolymerization unit R 3 SiO 1 / 2 (abbreviated as M unit) and another copolymerization unit SiO 4 / 2 (referred to as Q unit) of copolymerized siloxane resin reaction or mixed. Silicone pressure-sensitive adhesives are widely used in the manufacture of various pressure-sensitive adhesive tapes due to their characteristics of bonding low surface energy materials such as silicone and good high and low temperature performance. [0003] However, the above-mentioned silicone pressure-sensitive adhesives may cause some problems in some applications, for example,...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J11/06C09J7/02
CPCC08K3/38C08K5/55C09J183/10C09J183/04C08L83/00
Inventor 吴轩熊海锟华佳明于文娟陈力君杰斯瑞·塞思
Owner 3M INNOVATIVE PROPERTIES CO
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